Java tutorial
/* * Copyright (C) 2013-2016 Scott Warner * * 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 com.tortel.deploytrack; import android.app.FragmentTransaction; import android.content.Intent; import android.content.SharedPreferences; import android.os.Bundle; import android.preference.Preference; import android.preference.PreferenceFragment; import android.preference.PreferenceScreen; import android.support.v4.app.DialogFragment; import android.support.v4.app.FragmentManager; import android.support.v7.app.AppCompatActivity; import android.view.MenuItem; import com.google.firebase.analytics.FirebaseAnalytics; import com.google.firebase.auth.FirebaseUser; import com.tortel.deploytrack.data.DatabaseManager; import com.tortel.deploytrack.dialog.ScreenShotModeDialog; import com.tortel.deploytrack.dialog.WelcomeDialog; import com.tortel.deploytrack.provider.WidgetProvider; /** * Settings activity */ public class SettingsActivity extends AppCompatActivity { private static final String KEY_THEME = "pref_light_theme"; private static final String KEY_WELCOME = "pref_show_welcome"; private static final String KEY_ABOUT_SCREENSHOT = "pref_show_about_screenshot"; private static final String KEY_SYNC = "pref_sync_info"; private static final String KEY_ANALYTICS = "pref_analytics"; @Override public void onCreate(Bundle savedInstanceState) { // Check for light theme Prefs.load(this); if (Prefs.useLightTheme()) { setTheme(R.style.Theme_DeployThemeLight); } super.onCreate(savedInstanceState); setContentView(R.layout.activity_settings); if (getSupportActionBar() != null) { getSupportActionBar().setDisplayHomeAsUpEnabled(true); } FragmentTransaction transaction = getFragmentManager().beginTransaction(); transaction.replace(R.id.content_frame, new SettingsFragment()); transaction.commit(); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { //Finish on the icon 'up' pressed case android.R.id.home: this.finish(); return true; } return super.onOptionsItemSelected(item); } @Override public void onStop() { super.onStop(); sendWidgetUpdateBroadcast(); } /** * Send a broadcast to force the widgets to update */ private void sendWidgetUpdateBroadcast() { Log.v("Sending widget update broadcast"); // Force the widgets to update Intent updateWidgetIntent = new Intent(WidgetProvider.UPDATE_INTENT); sendBroadcast(updateWidgetIntent); } /** * Fragment which shows the actual settings */ public static class SettingsFragment extends PreferenceFragment implements SharedPreferences.OnSharedPreferenceChangeListener { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); addPreferencesFromResource(R.xml.preferences); setSyncStatus(); } /** * Set the title of the sync preference to show the current email address */ private void setSyncStatus() { FirebaseUser currentUser = DatabaseManager.getInstance(getActivity()).getFirebaseUser(); Preference syncPref = getPreferenceScreen().findPreference(KEY_SYNC); if (currentUser != null) { // Show that sync is enabled syncPref.setTitle(getString(R.string.pref_sync_enabled, currentUser.getEmail())); } else { // Show that sync is disabled syncPref.setTitle(R.string.pref_sync_not_enabled); } } @Override public void onResume() { super.onResume(); getPreferenceScreen().getSharedPreferences().registerOnSharedPreferenceChangeListener(this); } @Override public void onPause() { super.onPause(); getPreferenceScreen().getSharedPreferences().unregisterOnSharedPreferenceChangeListener(this); } @Override public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) { DialogFragment dialog; FragmentManager fragMan = ((AppCompatActivity) getActivity()).getSupportFragmentManager(); if (KEY_WELCOME.equals(preference.getKey())) { dialog = new WelcomeDialog(); dialog.show(fragMan, "welcome"); return true; } else if (KEY_ABOUT_SCREENSHOT.equals(preference.getKey())) { dialog = new ScreenShotModeDialog(); dialog.show(fragMan, "screenshot"); return true; } return super.onPreferenceTreeClick(preferenceScreen, preference); } @Override public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) { // For theme changes, restart the app to apply it right away if (key.equals(KEY_THEME)) { Intent intent = new Intent(getActivity(), MainActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); getActivity().startActivity(intent); } else if (key.equals(KEY_ANALYTICS)) { // Turn analytics on/off boolean value = sharedPreferences.getBoolean(KEY_ANALYTICS, true); Log.d("Analytics collection: " + value); FirebaseAnalytics.getInstance(getActivity()).setAnalyticsCollectionEnabled(value); } } } }