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seedvault/app/src/main/java/com/stevesoltys/backup/settings/SettingsActivity.java

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Java
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package com.stevesoltys.backup.settings;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
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import android.os.Bundle;
import android.util.Log;
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import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.Toast;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.lifecycle.ViewModelProviders;
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import com.stevesoltys.backup.R;
import static android.content.Intent.ACTION_OPEN_DOCUMENT_TREE;
import static android.content.Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION;
import static android.content.Intent.FLAG_GRANT_READ_URI_PERMISSION;
import static android.content.Intent.FLAG_GRANT_WRITE_URI_PERMISSION;
import static android.widget.Toast.LENGTH_LONG;
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import static android.widget.Toast.LENGTH_SHORT;
import static com.stevesoltys.backup.activity.MainActivity.OPEN_DOCUMENT_TREE_REQUEST_CODE;
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import static java.util.Objects.requireNonNull;
public class SettingsActivity extends AppCompatActivity {
private final static String TAG = SettingsActivity.class.getName();
private SettingsViewModel viewModel;
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@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_settings);
viewModel = ViewModelProviders.of(this).get(SettingsViewModel.class);
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requireNonNull(getSupportActionBar()).setDisplayHomeAsUpEnabled(true);
}
@Override
protected void onStart() {
super.onStart();
if (!viewModel.locationIsSet()) {
showChooseFolderActivity();
}
}
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@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.settings_menu, menu);
if (getResources().getBoolean(R.bool.show_restore_in_settings)) {
menu.findItem(R.id.action_restore).setVisible(true);
}
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == android.R.id.home) {
onBackPressed();
return true;
} else if (item.getItemId() == R.id.action_backup) {
Toast.makeText(this, "Not yet implemented", LENGTH_SHORT).show();
return true;
} else if (item.getItemId() == R.id.action_restore) {
Toast.makeText(this, "Not yet implemented", LENGTH_SHORT).show();
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent result) {
if (resultCode != Activity.RESULT_OK) {
Log.w(TAG, "Error in activity result: " + requestCode);
return;
}
if (requestCode == OPEN_DOCUMENT_TREE_REQUEST_CODE) {
viewModel.handleChooseFolderResult(result);
}
}
private void showChooseFolderActivity() {
Intent openTreeIntent = new Intent(ACTION_OPEN_DOCUMENT_TREE);
openTreeIntent.addFlags(FLAG_GRANT_PERSISTABLE_URI_PERMISSION |
FLAG_GRANT_READ_URI_PERMISSION | FLAG_GRANT_WRITE_URI_PERMISSION);
try {
Intent documentChooser = Intent.createChooser(openTreeIntent, "Select the backup location");
startActivityForResult(documentChooser, OPEN_DOCUMENT_TREE_REQUEST_CODE);
} catch (ActivityNotFoundException ex) {
Toast.makeText(this, "Please install a file manager.", LENGTH_LONG).show();
}
}
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}