Initial commit based on original flower example

2021-10-25 09:01:10 -04:00 · 2021-10-25 09:01:10 -04:00 · ccdb5e741e
commit ccdb5e741e
59 changed files with 2060 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,36 @@
+# built application files
+*.apk
+*.ap_
+
+# Mac files
+.DS_Store
+
+# files for the dex VM
+*.dex
+
+# Java class files
+*.class
+
+# generated files
+bin/
+gen/
+
+# Ignore gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+proguard-project.txt
+
+# Eclipse files
+.project
+.classpath
+.settings/
+
+# Android Studio/IDEA
+*.iml
+.idea
--- a/.google/packaging.yaml
+++ b/.google/packaging.yaml
@ -0,0 +1,19 @@
+
+# GOOGLE SAMPLE PACKAGING DATA
+#
+# This file is used by Google as part of our samples packaging process.
+# End users may safely ignore this file. It has no relevance to other systems.
+---
+status:       PUBLISHED
+technologies: [Android]
+categories:   [Views Widgets]
+languages:    [Kotlin]
+solutions:    [Mobile]
+github:       android/views-widgets
+level:        INTERMEDIATE
+icon:         screenshots/icon-web.png
+apiRefs:
+    - android:androidx.recyclerview.widget.RecyclerView
+    - android:androidx.recyclerview.widget.RecyclerView.LayoutManager
+    - android:androidx.recyclerview.widget.RecyclerView.ViewHolder
+license:      apache2
--- a/191
+++ b/191
@ -0,0 +1,191 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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+   Copyright [yyyy] [name of copyright owner]
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+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
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+       http://www.apache.org/licenses/LICENSE-2.0
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+   Unless required by applicable law or agreed to in writing, software
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+   See the License for the specific language governing permissions and
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+
--- a/README.md
+++ b/README.md
@ -0,0 +1,52 @@
+Android RecyclerView Sample (Kotlin)
+====================================
+
+This application implements a RecyclerView in Kotlin with ListAdapter, onClickListener 
+and Headers. If you are looking for a simpler sample, look at the RecyclerViewSimple sample
+in the directory.
+
+
+Introduction
+------------
+
+Sample demonstrating the use of [RecyclerView][1] to layout elements with a
+[LinearLayoutManager][2].
+
+[RecyclerView][1] can display large datasets that can be scrolled
+efficiently by recycling a limited number of views. [ListAdapter][3] is used to 
+efficiently compute diffs when items are added/removed from the list. Click listeners can be
+defined when [ViewHolder][4] views are instantiated. 
+
+
+[1]: https://developer.android.com/reference/kotlin/androidx/recyclerview/widget/RecyclerView
+[2]: https://developer.android.com/reference/androidx/recyclerview/widget/LinearLayoutManager
+[3]: https://developer.android.com/reference/androidx/recyclerview/widget/ListAdapter
+[4]: https://developer.android.com/reference/androidx/recyclerview/widget/RecyclerView.ViewHolder
+
+Pre-requisites
+--------------
+
+- Android SDK 27
+- Android Gradle Plugin 3.0
+- Android Support Repository
+
+Screenshots
+-------------
+
+![image](https://user-images.githubusercontent.com/46006059/98028846-8b6df700-1dc3-11eb-9f0b-ad93569be189.png)
+
+Getting Started
+---------------
+
+To build this project, use "Import Project" in Android Studio.
+
+Support
+-------
+
+- Stack Overflow: http://stackoverflow.com/questions/tagged/android
+
+If you've found an error in this sample, please file an issue:
+https://github.com/android/views-widgets
+
+Patches are encouraged, and may be submitted by forking this project and
+submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
--- a/app/.gitignore
+++ b/app/.gitignore
@ -0,0 +1 @@
+/build
--- a/app/build.gradle
+++ b/app/build.gradle
@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
+
+android {
+    compileSdkVersion 30
+
+    defaultConfig {
+        applicationId "com.example.recyclersample"
+        minSdkVersion 21
+        targetSdkVersion 30
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+        }
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_1_8.toString()
+    }
+
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+    implementation "androidx.appcompat:appcompat:$rootProject.appCompatVersion"
+    implementation "androidx.core:core-ktx:$rootProject.coreKtxVersion"
+    implementation "androidx.constraintlayout:constraintlayout:$rootProject.constraintLayoutVersion"
+    implementation "androidx.activity:activity-ktx:$rootProject.activityVersion"
+
+    // RecyclerView
+    implementation "androidx.recyclerview:recyclerview:$rootProject.recyclerViewVersion"
+
+    // Material design
+    implementation "com.google.android.material:material:$rootProject.materialVersion"
+
+    // LiveData
+    implementation "androidx.lifecycle:lifecycle-livedata-ktx:$rootProject.liveDataVersion"
+}
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2020 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.heckel.ntfy">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name="io.heckel.ntfy.list.TopicsListActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name="io.heckel.ntfy.add.AddTopicActivity" />
+        <activity android:name="io.heckel.ntfy.detail.TopicDetailActivity" />
+    </application>
+
+</manifest>
--- a/app/src/main/java/io/heckel/ntfy/add/AddTopicActivity.kt
+++ b/app/src/main/java/io/heckel/ntfy/add/AddTopicActivity.kt
@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.heckel.ntfy.add
+
+import android.app.Activity
+import android.content.Intent
+import android.os.Bundle
+import android.widget.Button
+import androidx.appcompat.app.AppCompatActivity
+import com.heckel.ntfy.R
+import com.google.android.material.textfield.TextInputEditText
+
+const val FLOWER_NAME = "name"
+const val FLOWER_DESCRIPTION = "description"
+
+class AddTopicActivity : AppCompatActivity() {
+    private lateinit var addFlowerName: TextInputEditText
+    private lateinit var addFlowerDescription: TextInputEditText
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.add_flower_layout)
+
+        findViewById<Button>(R.id.done_button).setOnClickListener {
+            addFlower()
+        }
+        addFlowerName = findViewById(R.id.add_flower_name)
+        addFlowerDescription = findViewById(R.id.add_flower_description)
+    }
+
+    /* The onClick action for the done button. Closes the activity and returns the new flower name
+    and description as part of the intent. If the name or description are missing, the result is set
+    to cancelled. */
+
+    private fun addFlower() {
+        val resultIntent = Intent()
+
+        if (addFlowerName.text.isNullOrEmpty() || addFlowerDescription.text.isNullOrEmpty()) {
+            setResult(Activity.RESULT_CANCELED, resultIntent)
+        } else {
+            val name = addFlowerName.text.toString()
+            val description = addFlowerDescription.text.toString()
+            resultIntent.putExtra(FLOWER_NAME, name)
+            resultIntent.putExtra(FLOWER_DESCRIPTION, description)
+            setResult(Activity.RESULT_OK, resultIntent)
+        }
+        finish()
+    }
+}
--- a/app/src/main/java/io/heckel/ntfy/data/DataSource.kt
+++ b/app/src/main/java/io/heckel/ntfy/data/DataSource.kt
@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.heckel.ntfy.data
+
+import android.content.res.Resources
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+
+/* Handles operations on flowersLiveData and holds details about it. */
+class DataSource(resources: Resources) {
+    private val initialFlowerList = flowerList(resources)
+    private val flowersLiveData = MutableLiveData(initialFlowerList)
+
+    /* Adds flower to liveData and posts value. */
+    fun addFlower(flower: Topic) {
+        val currentList = flowersLiveData.value
+        if (currentList == null) {
+            flowersLiveData.postValue(listOf(flower))
+        } else {
+            val updatedList = currentList.toMutableList()
+            updatedList.add(0, flower)
+            flowersLiveData.postValue(updatedList)
+        }
+    }
+
+    /* Removes flower from liveData and posts value. */
+    fun removeFlower(flower: Topic) {
+        val currentList = flowersLiveData.value
+        if (currentList != null) {
+            val updatedList = currentList.toMutableList()
+            updatedList.remove(flower)
+            flowersLiveData.postValue(updatedList)
+        }
+    }
+
+    /* Returns flower given an ID. */
+    fun getFlowerForId(id: Long): Topic? {
+        flowersLiveData.value?.let { flowers ->
+            return flowers.firstOrNull{ it.id == id}
+        }
+        return null
+    }
+
+    fun getFlowerList(): LiveData<List<Topic>> {
+        return flowersLiveData
+    }
+
+    /* Returns a random flower asset for flowers that are added. */
+    fun getRandomFlowerImageAsset(): Int? {
+        val randomNumber = (initialFlowerList.indices).random()
+        return initialFlowerList[randomNumber].image
+    }
+
+    companion object {
+        private var INSTANCE: DataSource? = null
+
+        fun getDataSource(resources: Resources): DataSource {
+            return synchronized(DataSource::class) {
+                val newInstance = INSTANCE ?: DataSource(resources)
+                INSTANCE = newInstance
+                newInstance
+            }
+        }
+    }
+}
--- a/app/src/main/java/io/heckel/ntfy/data/Topic.kt
+++ b/app/src/main/java/io/heckel/ntfy/data/Topic.kt
@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.heckel.ntfy.data
+
+import androidx.annotation.DrawableRes
+
+data class Topic(
+    val id: Long,
+    val name: String,
+    @DrawableRes
+    val image: Int?,
+    val description: String
+)
--- a/app/src/main/java/io/heckel/ntfy/data/Topics.kt
+++ b/app/src/main/java/io/heckel/ntfy/data/Topics.kt
@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.heckel.ntfy.data
+
+import android.content.res.Resources
+import com.heckel.ntfy.R
+
+/* Returns initial list of flowers. */
+fun flowerList(resources: Resources): List<Topic> {
+    return listOf(
+        Topic(
+            id = 1,
+            name = resources.getString(R.string.flower1_name),
+            image = R.drawable.rose,
+            description = resources.getString(R.string.flower1_description)
+        ),
+        Topic(
+            id = 2,
+            name = resources.getString(R.string.flower2_name),
+            image = R.drawable.freesia,
+            description = resources.getString(R.string.flower2_description)
+        ),
+        Topic(
+            id = 3,
+            name = resources.getString(R.string.flower3_name),
+            image = R.drawable.lily,
+            description = resources.getString(R.string.flower3_description)
+        ),
+        Topic(
+            id = 4,
+            name = resources.getString(R.string.flower4_name),
+            image = R.drawable.sunflower,
+            description = resources.getString(R.string.flower4_description)
+        ),
+        Topic(
+            id = 5,
+            name = resources.getString(R.string.flower5_name),
+            image = R.drawable.peony,
+            description = resources.getString(R.string.flower5_description)
+        ),
+        Topic(
+            id = 6,
+            name = resources.getString(R.string.flower6_name),
+            image = R.drawable.daisy,
+            description = resources.getString(R.string.flower6_description)
+        ),
+        Topic(
+            id = 7,
+            name = resources.getString(R.string.flower7_name),
+            image = R.drawable.lilac,
+            description = resources.getString(R.string.flower7_description)
+        ),
+        Topic(
+            id = 8,
+            name = resources.getString(R.string.flower8_name),
+            image = R.drawable.marigold,
+            description = resources.getString(R.string.flower8_description)
+        ),
+        Topic(
+            id = 9,
+            name = resources.getString(R.string.flower9_name),
+            image = R.drawable.poppy,
+            description = resources.getString(R.string.flower9_description)
+        ),
+        Topic(
+            id = 10,
+            name = resources.getString(R.string.flower10_name),
+            image = R.drawable.daffodil,
+            description = resources.getString(R.string.flower10_description)
+        ),
+        Topic(
+            id = 11,
+            name = resources.getString(R.string.flower11_name),
+            image = R.drawable.dahlia,
+            description = resources.getString(R.string.flower11_description)
+        )
+    )
+}
--- a/app/src/main/java/io/heckel/ntfy/detail/TopicDetailActivity.kt
+++ b/app/src/main/java/io/heckel/ntfy/detail/TopicDetailActivity.kt
@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.heckel.ntfy.detail
+
+import android.os.Bundle
+import android.widget.Button
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.activity.viewModels
+import androidx.appcompat.app.AppCompatActivity
+import com.heckel.ntfy.R
+import io.heckel.ntfy.list.FLOWER_ID
+
+class TopicDetailActivity : AppCompatActivity() {
+
+    private val flowerDetailViewModel by viewModels<FlowerDetailViewModel> {
+        FlowerDetailViewModelFactory(this)
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.flower_detail_activity)
+
+        var currentFlowerId: Long? = null
+
+        /* Connect variables to UI elements. */
+        val flowerName: TextView = findViewById(R.id.flower_detail_name)
+        val flowerImage: ImageView = findViewById(R.id.flower_detail_image)
+        val flowerDescription: TextView = findViewById(R.id.flower_detail_description)
+        val removeFlowerButton: Button = findViewById(R.id.remove_button)
+
+        val bundle: Bundle? = intent.extras
+        if (bundle != null) {
+            currentFlowerId = bundle.getLong(FLOWER_ID)
+        }
+
+        /* If currentFlowerId is not null, get corresponding flower and set name, image and
+        description */
+        currentFlowerId?.let {
+            val currentFlower = flowerDetailViewModel.getFlowerForId(it)
+            flowerName.text = currentFlower?.name
+            if (currentFlower?.image == null) {
+                flowerImage.setImageResource(R.drawable.rose)
+            } else {
+                flowerImage.setImageResource(currentFlower.image)
+            }
+            flowerDescription.text = currentFlower?.description
+
+            removeFlowerButton.setOnClickListener {
+                if (currentFlower != null) {
+                    flowerDetailViewModel.removeFlower(currentFlower)
+                }
+                finish()
+            }
+        }
+
+    }
+}
--- a/app/src/main/java/io/heckel/ntfy/detail/TopicDetailViewModel.kt
+++ b/app/src/main/java/io/heckel/ntfy/detail/TopicDetailViewModel.kt
@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.heckel.ntfy.detail
+
+import android.content.Context
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import io.heckel.ntfy.data.DataSource
+import io.heckel.ntfy.data.Topic
+
+class FlowerDetailViewModel(private val datasource: DataSource) : ViewModel() {
+
+    /* Queries datasource to returns a flower that corresponds to an id. */
+    fun getFlowerForId(id: Long) : Topic? {
+        return datasource.getFlowerForId(id)
+    }
+
+    /* Queries datasource to remove a flower. */
+    fun removeFlower(flower: Topic) {
+        datasource.removeFlower(flower)
+    }
+}
+
+class FlowerDetailViewModelFactory(private val context: Context) : ViewModelProvider.Factory {
+
+    override fun <T : ViewModel> create(modelClass: Class<T>): T {
+        if (modelClass.isAssignableFrom(FlowerDetailViewModel::class.java)) {
+            @Suppress("UNCHECKED_CAST")
+            return FlowerDetailViewModel(
+                datasource = DataSource.getDataSource(context.resources)
+            ) as T
+        }
+        throw IllegalArgumentException("Unknown ViewModel class")
+    }
+}
--- a/app/src/main/java/io/heckel/ntfy/list/HeaderAdapter.kt
+++ b/app/src/main/java/io/heckel/ntfy/list/HeaderAdapter.kt
@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.heckel.ntfy.list
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+import com.heckel.ntfy.R
+
+/* A list always displaying one element: the number of flowers. */
+
+class HeaderAdapter: RecyclerView.Adapter<HeaderAdapter.HeaderViewHolder>() {
+    private var flowerCount: Int = 0
+
+    /* ViewHolder for displaying header. */
+    class HeaderViewHolder(view: View) : RecyclerView.ViewHolder(view){
+        private val flowerNumberTextView: TextView = itemView.findViewById(R.id.flower_number_text)
+
+        fun bind(flowerCount: Int) {
+            flowerNumberTextView.text = flowerCount.toString()
+        }
+    }
+
+    /* Inflates view and returns HeaderViewHolder. */
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): HeaderViewHolder {
+        val view = LayoutInflater.from(parent.context)
+            .inflate(R.layout.header_item, parent, false)
+        return HeaderViewHolder(view)
+    }
+
+    /* Binds number of flowers to the header. */
+    override fun onBindViewHolder(holder: HeaderViewHolder, position: Int) {
+        holder.bind(flowerCount)
+    }
+
+    /* Returns number of items, since there is only one item in the header return one  */
+    override fun getItemCount(): Int {
+        return 1
+    }
+
+    /* Updates header to display number of flowers when a flower is added or subtracted. */
+    fun updateFlowerCount(updatedFlowerCount: Int) {
+        flowerCount = updatedFlowerCount
+        notifyDataSetChanged()
+    }
+}
--- a/app/src/main/java/io/heckel/ntfy/list/TopicsAdapter.kt
+++ b/app/src/main/java/io/heckel/ntfy/list/TopicsAdapter.kt
@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.heckel.ntfy.list
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.ListAdapter
+import androidx.recyclerview.widget.RecyclerView
+import com.heckel.ntfy.R
+import io.heckel.ntfy.data.Topic
+
+class FlowersAdapter(private val onClick: (Topic) -> Unit) :
+    ListAdapter<Topic, FlowersAdapter.FlowerViewHolder>(FlowerDiffCallback) {
+
+    /* ViewHolder for Flower, takes in the inflated view and the onClick behavior. */
+    class FlowerViewHolder(itemView: View, val onClick: (Topic) -> Unit) :
+        RecyclerView.ViewHolder(itemView) {
+        private val flowerTextView: TextView = itemView.findViewById(R.id.flower_text)
+        private val flowerImageView: ImageView = itemView.findViewById(R.id.flower_image)
+        private var currentFlower: Topic? = null
+
+        init {
+            itemView.setOnClickListener {
+                currentFlower?.let {
+                    onClick(it)
+                }
+            }
+        }
+
+        /* Bind flower name and image. */
+        fun bind(flower: Topic) {
+            currentFlower = flower
+
+            flowerTextView.text = flower.name
+            if (flower.image != null) {
+                flowerImageView.setImageResource(flower.image)
+            } else {
+                flowerImageView.setImageResource(R.drawable.rose)
+            }
+        }
+    }
+
+    /* Creates and inflates view and return FlowerViewHolder. */
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): FlowerViewHolder {
+        val view = LayoutInflater.from(parent.context)
+            .inflate(R.layout.flower_item, parent, false)
+        return FlowerViewHolder(view, onClick)
+    }
+
+    /* Gets current flower and uses it to bind view. */
+    override fun onBindViewHolder(holder: FlowerViewHolder, position: Int) {
+        val flower = getItem(position)
+        holder.bind(flower)
+
+    }
+}
+
+object FlowerDiffCallback : DiffUtil.ItemCallback<Topic>() {
+    override fun areItemsTheSame(oldItem: Topic, newItem: Topic): Boolean {
+        return oldItem == newItem
+    }
+
+    override fun areContentsTheSame(oldItem: Topic, newItem: Topic): Boolean {
+        return oldItem.id == newItem.id
+    }
+}
--- a/app/src/main/java/io/heckel/ntfy/list/TopicsListActivity.kt
+++ b/app/src/main/java/io/heckel/ntfy/list/TopicsListActivity.kt
@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.heckel.ntfy.list
+
+import android.app.Activity
+import android.content.Intent
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.view.View
+import androidx.activity.viewModels
+import androidx.recyclerview.widget.ConcatAdapter
+import androidx.recyclerview.widget.RecyclerView
+import io.heckel.ntfy.add.AddTopicActivity
+import io.heckel.ntfy.detail.TopicDetailActivity
+import com.heckel.ntfy.R
+import io.heckel.ntfy.add.FLOWER_DESCRIPTION
+import io.heckel.ntfy.add.FLOWER_NAME
+import io.heckel.ntfy.data.Topic
+
+const val FLOWER_ID = "flower id"
+
+class TopicsListActivity : AppCompatActivity() {
+    private val newTopicActivityRequestCode = 1
+    private val topicsListViewModel by viewModels<TopicsListViewModel> {
+        FlowersListViewModelFactory(this)
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        /* Instantiates headerAdapter and flowersAdapter. Both adapters are added to concatAdapter.
+        which displays the contents sequentially */
+        val headerAdapter = HeaderAdapter()
+        val topicsAdapter = FlowersAdapter { flower -> adapterOnClick(flower) }
+        val concatAdapter = ConcatAdapter(headerAdapter, topicsAdapter)
+
+        val recyclerView: RecyclerView = findViewById(R.id.recycler_view)
+        recyclerView.adapter = concatAdapter
+
+        topicsListViewModel.topicsLiveData.observe(this, {
+            it?.let {
+                topicsAdapter.submitList(it as MutableList<Topic>)
+                headerAdapter.updateFlowerCount(it.size)
+            }
+        })
+
+        val fab: View = findViewById(R.id.fab)
+        fab.setOnClickListener {
+            fabOnClick()
+        }
+    }
+
+    /* Opens FlowerDetailActivity when RecyclerView item is clicked. */
+    private fun adapterOnClick(flower: Topic) {
+        val intent = Intent(this, TopicDetailActivity()::class.java)
+        intent.putExtra(FLOWER_ID, flower.id)
+        startActivity(intent)
+    }
+
+    /* Adds flower to flowerList when FAB is clicked. */
+    private fun fabOnClick() {
+        val intent = Intent(this, AddTopicActivity::class.java)
+        startActivityForResult(intent, newTopicActivityRequestCode)
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, intentData: Intent?) {
+        super.onActivityResult(requestCode, resultCode, intentData)
+
+        /* Inserts flower into viewModel. */
+        if (requestCode == newTopicActivityRequestCode && resultCode == Activity.RESULT_OK) {
+            intentData?.let { data ->
+                val flowerName = data.getStringExtra(FLOWER_NAME)
+                val flowerDescription = data.getStringExtra(FLOWER_DESCRIPTION)
+
+                topicsListViewModel.insertFlower(flowerName, flowerDescription)
+            }
+        }
+    }
+}
--- a/app/src/main/java/io/heckel/ntfy/list/TopicsListViewModel.kt
+++ b/app/src/main/java/io/heckel/ntfy/list/TopicsListViewModel.kt
@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package io.heckel.ntfy.list
+
+import android.content.Context
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import io.heckel.ntfy.data.DataSource
+import io.heckel.ntfy.data.Topic
+import kotlin.random.Random
+
+class TopicsListViewModel(val dataSource: DataSource) : ViewModel() {
+
+    val topicsLiveData = dataSource.getFlowerList()
+
+    /* If the name and description are present, create new Flower and add it to the datasource */
+    fun insertFlower(flowerName: String?, flowerDescription: String?) {
+        if (flowerName == null || flowerDescription == null) {
+            return
+        }
+
+        val image = dataSource.getRandomFlowerImageAsset()
+        val newFlower = Topic(
+            Random.nextLong(),
+            flowerName,
+            image,
+            flowerDescription
+        )
+
+        dataSource.addFlower(newFlower)
+    }
+}
+
+class FlowersListViewModelFactory(private val context: Context) : ViewModelProvider.Factory {
+
+    override fun <T : ViewModel> create(modelClass: Class<T>): T {
+        if (modelClass.isAssignableFrom(TopicsListViewModel::class.java)) {
+            @Suppress("UNCHECKED_CAST")
+            return TopicsListViewModel(
+                dataSource = DataSource.getDataSource(context.resources)
+            ) as T
+        }
+        throw IllegalArgumentException("Unknown ViewModel class")
+    }
+}
--- a/app/src/main/res/drawable-v24/daffodil.png
+++ b/app/src/main/res/drawable-v24/daffodil.png
--- a/app/src/main/res/drawable-v24/dahlia.png
+++ b/app/src/main/res/drawable-v24/dahlia.png
--- a/app/src/main/res/drawable-v24/daisy.png
+++ b/app/src/main/res/drawable-v24/daisy.png
--- a/app/src/main/res/drawable-v24/freesia.png
+++ b/app/src/main/res/drawable-v24/freesia.png
--- a/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
+++ b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@ -0,0 +1,46 @@
+<!--
+     Copyright (C) 2020 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
--- a/app/src/main/res/drawable-v24/lilac.png
+++ b/app/src/main/res/drawable-v24/lilac.png
--- a/app/src/main/res/drawable-v24/lily.png
+++ b/app/src/main/res/drawable-v24/lily.png
--- a/app/src/main/res/drawable-v24/marigold.png
+++ b/app/src/main/res/drawable-v24/marigold.png
--- a/app/src/main/res/drawable-v24/peony.png
+++ b/app/src/main/res/drawable-v24/peony.png
--- a/app/src/main/res/drawable-v24/poppy.png
+++ b/app/src/main/res/drawable-v24/poppy.png
--- a/app/src/main/res/drawable-v24/rose.png
+++ b/app/src/main/res/drawable-v24/rose.png
--- a/app/src/main/res/drawable-v24/sunflower.png
+++ b/app/src/main/res/drawable-v24/sunflower.png
--- a/app/src/main/res/drawable-v24/tulip.png
+++ b/app/src/main/res/drawable-v24/tulip.png
--- a/app/src/main/res/drawable/ic_add_black_24dp.xml
+++ b/app/src/main/res/drawable/ic_add_black_24dp.xml
@ -0,0 +1,21 @@
+<!--
+     Copyright (C) 2020 The Android Open Source Project
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+          http://www.apache.org/licenses/LICENSE-2.0
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
+</vector>
--- a/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/app/src/main/res/drawable/ic_launcher_background.xml
@ -0,0 +1,186 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2020 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2020 The Android Open Source Project
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+          http://www.apache.org/licenses/LICENSE-2.0
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recycler_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:layoutManager="LinearLayoutManager"/>
+
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/fab"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="16dp"
+        android:contentDescription="@string/fab_content_description"
+        android:src="@drawable/ic_add_black_24dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"/>
+
+</androidx.constraintlayout.widget.ConstraintLayout>
--- a/app/src/main/res/layout/add_flower_layout.xml
+++ b/app/src/main/res/layout/add_flower_layout.xml
@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2020 The Android Open Source Project
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+          http://www.apache.org/licenses/LICENSE-2.0
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:paddingLeft="16dp"
+    android:paddingRight="16dp">
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingTop="16dp"
+        android:paddingBottom="16dp"
+        android:text="@string/add_topic"
+        android:textAlignment="center"
+        android:textAppearance="?attr/textAppearanceHeadline4" />
+
+    <com.google.android.material.textfield.TextInputLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:hint="@string/flower_name_edit_text"
+        android:paddingTop="16dp"
+        android:paddingBottom="16dp">
+
+        <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/add_flower_name"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+
+    </com.google.android.material.textfield.TextInputLayout>
+
+    <com.google.android.material.textfield.TextInputLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:hint="@string/flower_description_edit_text"
+        android:paddingTop="16dp"
+        android:paddingBottom="16dp">
+
+        <com.google.android.material.textfield.TextInputEditText
+            android:id="@+id/add_flower_description"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:inputType="textMultiLine" />
+
+    </com.google.android.material.textfield.TextInputLayout>
+
+    <Button
+        android:id="@+id/done_button"
+        style="?attr/materialButtonOutlinedStyle"
+        android:layout_width="240dp"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:text="@string/done_button_text" />
+</LinearLayout>
--- a/app/src/main/res/layout/flower_detail_activity.xml
+++ b/app/src/main/res/layout/flower_detail_activity.xml
@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2020 The Android Open Source Project
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+          http://www.apache.org/licenses/LICENSE-2.0
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <TextView
+        android:id="@+id/flower_detail_name"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingTop="24dp"
+        android:paddingBottom="24dp"
+        android:text="@string/flower1_name"
+        android:textAlignment="center"
+        android:textAppearance="?attr/textAppearanceHeadline3" />
+
+    <ImageView
+        android:id="@+id/flower_detail_image"
+        android:layout_width="320dp"
+        android:layout_height="320dp"
+        android:layout_gravity="center"
+        android:contentDescription="@string/flower_image_content_description"
+        app:srcCompat="@drawable/rose" />
+
+    <TextView
+        android:id="@+id/flower_detail_description"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:padding="16dp"
+        android:text="@string/flower1_description" />
+
+    <Button
+        android:id="@+id/remove_button"
+        style="?attr/materialButtonOutlinedStyle"
+        android:layout_width="240dp"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:text="@string/remove_topic" />
+</LinearLayout>
--- a/app/src/main/res/layout/flower_item.xml
+++ b/app/src/main/res/layout/flower_item.xml
@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2020 The Android Open Source Project
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+          http://www.apache.org/licenses/LICENSE-2.0
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <ImageView
+        android:id="@+id/flower_image"
+        android:layout_width="48dp"
+        android:layout_height="48dp"
+        android:layout_margin="8dp"
+        android:contentDescription="@string/flower_image_content_description"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toStartOf="@+id/flower_text"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/flower_text"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="8dp"
+        android:text="@string/flower1_name"
+        android:textAppearance="?attr/textAppearanceHeadline5"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toEndOf="@+id/flower_image"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
--- a/app/src/main/res/layout/header_item.xml
+++ b/app/src/main/res/layout/header_item.xml
@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2020 The Android Open Source Project
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+          http://www.apache.org/licenses/LICENSE-2.0
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <TextView
+        android:id="@+id/header_text"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:text="@string/flower_finder"
+        android:textAppearance="?attr/textAppearanceHeadline3" />
+
+    <TextView
+        android:id="@+id/flower_number_text"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:textAppearance="?attr/textAppearanceHeadline6" />
+
+    <TextView
+        android:id="@+id/flower_text"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:text="@string/flower_string"
+        android:textAppearance="?attr/textAppearanceHeadline6" />
+
+</LinearLayout>
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2020 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2020 The Android Open Source Project
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+          http://www.apache.org/licenses/LICENSE-2.0
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-hdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-mdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2020 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<resources>
+    <color name="colorPrimary">#6200EE</color>
+    <color name="colorPrimaryDark">#3700B3</color>
+    <color name="colorAccent">#03DAC5</color>
+</resources>
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@ -0,0 +1,61 @@
+<!--
+     Copyright (C) 2020 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<resources>
+    <string name="app_name">ntfy.sh</string>
+    <string name="add_topic">Add Topic</string>
+
+    <string name="flower1_name">Rose</string>
+    <string name="flower2_name">Freesia</string>
+    <string name="flower3_name">Lily</string>
+    <string name="flower4_name">Sunflower</string>
+    <string name="flower5_name">Peony</string>
+    <string name="flower6_name">Daisy</string>
+    <string name="flower7_name">Lilac</string>
+    <string name="flower8_name">Marigold</string>
+    <string name="flower9_name">Poppy</string>
+    <string name="flower10_name">Daffodil</string>
+    <string name="flower11_name">Dahlia</string>
+    <string name="flower12_name">Tulip</string>
+
+    <string name="flower1_description">Rose comes from the Latin word Rosa. There are over 100
+        species of the rose. </string>
+    <string name="flower2_description">Freesias bloom during spring and are native to
+        Africa.</string>
+    <string name="flower3_description">Lilies have the longest in vase lifespan of any cut
+        bloom.</string>
+    <string name="flower4_description">Mature Sunflowers face east and are native too the United
+        States.</string>
+    <string name="flower5_description">Peony plants can live to be 100 years old.</string>
+    <string name="flower6_description">Daisies are cousins with Sunflowers.</string>
+    <string name="flower7_description">Lilacs belong to the olive family.</string>
+    <string name="flower8_description">Marigolds come in orange, reed, maroon and yellow.</string>
+    <string name="flower9_description">Poppies can be over 3 feet tall.</string>
+    <string name="flower10_description">Daffodils are referred to as Lent Lilies in England</string>
+    <string name="flower11_description">Dahlia is named after the Swedish botanist Anders
+        Dahl</string>
+    <string name="flower12_description">There are over 150 species of tulips.</string>
+
+    <string name="flower_string">Flowers</string>
+    <string name="flower_finder">Flower finder</string>
+    <string name="flower_description_edit_text">Flower Description</string>
+    <string name="flower_name_edit_text">Flower Name</string>
+    <string name="done_button_text">Done</string>
+    <string name="fab_content_description">fab</string>
+    <string name="flower_image_content_description">Image of flower</string>
+    <string name="remove_topic">Unsubscribe</string>
+
+</resources>
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@ -0,0 +1,25 @@
+<!--
+     Copyright (C) 2020 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<resources>
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.MaterialComponents.Light.DarkActionBar">
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryVariant">@color/colorPrimaryDark</item>
+        <item name="colorSecondary">@color/colorAccent</item>
+    </style>
+
+</resources>
--- a/build.gradle
+++ b/build.gradle
@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+buildscript {
+    ext.kotlin_version = '1.4.10'
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:4.1.0'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+        
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
+
+ext {
+    materialVersion = '1.2.1'
+    liveDataVersion = '2.2.0'
+    recyclerViewVersion = '1.2.0-alpha06'
+    appCompatVersion = '1.2.0'
+    coreKtxVersion = '1.3.2'
+    constraintLayoutVersion = '2.0.4'
+    activityVersion = '1.1.0'
+}
--- a/gradle.properties
+++ b/gradle.properties
@ -0,0 +1,16 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+android.useAndroidX=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
--- a/gradle/wrapper/gradle-wrapper.jar
+++ b/gradle/wrapper/gradle-wrapper.jar
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@ -0,0 +1,6 @@
+#Tue Sep 22 10:13:03 PDT 2020
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip
--- a/172
+++ b/172
@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
--- a/gradlew.bat
+++ b/gradlew.bat
@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/settings.gradle
+++ b/settings.gradle
@ -0,0 +1,2 @@
+rootProject.name='RecyclerSample'
+include ':app'