下面列出了android.appwidget.AppWidgetManager#getInstance ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
@Override
public void onDataSetChanged() {
if (!Utils.hasInternet(mContext)) {
Toast.makeText(mContext, R.string.check_network, Toast.LENGTH_SHORT).show();
return;
}
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(mContext);
try {
ShotAppWidgetProvider.setupWidget(mContext, appWidgetManager, mAppWidgetId, true);
List<Shot> shots = ApiFactory.getService(mContext).getShotsSync(null, "recent", null, 1);
updateShots(shots);
} catch (Exception e) {
e.printStackTrace();
}
ShotAppWidgetProvider.setupWidget(mContext, appWidgetManager, mAppWidgetId, false);
}
public void addWidget() {
Editor mEditor = mPreferences.edit();
mEditor.putBoolean("widget_sos" + mAppWidgetId, mPreferences.getBoolean(KEY_WIDGET_SOS, false));
mEditor.commit();
// Initialize widget view for first update
Context mContext = getApplicationContext();
RemoteViews mViews = new RemoteViews(mContext.getPackageName(), R.layout.widget);
mViews.setImageViewResource(R.id.widget, R.drawable.widget_off);
Intent mLaunchIntent = new Intent();
mLaunchIntent.setClass(mContext, MainActivity.class);
mLaunchIntent.addCategory(Intent.CATEGORY_ALTERNATIVE);
mLaunchIntent.setData(Uri.parse("custom:" + mAppWidgetId + "/0"));
PendingIntent mPendingIntent = PendingIntent.getBroadcast(mContext, 0, mLaunchIntent, 0);
mViews.setOnClickPendingIntent(R.id.button, mPendingIntent);
final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(mContext);
appWidgetManager.updateAppWidget(mAppWidgetId, mViews);
Intent mResultValue = new Intent();
mResultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mAppWidgetId);
setResult(RESULT_OK, mResultValue);
// Close the activity
finish();
}
@Override
public void onReceive(Context context, Intent intent) {
super.onReceive(context, intent);
AppWidgetManager awm = AppWidgetManager.getInstance(context);
if (intent.getAction() != null) {
if (intent.getAction().equals(AppWidgetManager.ACTION_APPWIDGET_UPDATE)) {
if (intent.hasExtra(AppWidgetManager.EXTRA_APPWIDGET_ID)) {
if (intent.getExtras() != null) {
updateAppWidget(context, awm, new int[]{intent.getExtras().getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, -1)});
} else {
Log.w(TAG, "intent.getExtras() is null");
}
} else {
updateAppWidget(context, awm, awm.getAppWidgetIds(new ComponentName(context, NoteListWidget.class)));
}
}
} else {
Log.w(TAG, "intent.getAction() is null");
}
}
public static RemoteViews initDefaultView(Context context, int appWidgetId, RaspberryDeviceBean deviceBean, boolean showTemp, boolean showArm, boolean showLoad, boolean showMemory) {
LOGGER.debug("Initiating default view for Widget[ID={}].", appWidgetId);
final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
final RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.overclocking_widget);
views.setOnClickPendingIntent(R.id.buttonRefresh, getSelfPendingIntent(context, appWidgetId, ACTION_WIDGET_UPDATE_ONE_MANUAL));
PendingIntent activityIntent = getActivityIntent(context);
views.setOnClickPendingIntent(R.id.linLayoutName, activityIntent);
views.setOnClickPendingIntent(R.id.linLayoutTemp, activityIntent);
views.setOnClickPendingIntent(R.id.linLayoutArm, activityIntent);
views.setOnClickPendingIntent(R.id.linLayoutLoad, activityIntent);
views.setOnClickPendingIntent(R.id.linLayoutMem, activityIntent);
views.setTextViewText(R.id.textDeviceValue, deviceBean.getName());
views.setTextViewText(R.id.textDeviceUserHost, String.format("%[email protected]%s", deviceBean.getUser(), deviceBean.getHost()));
views.setViewVisibility(R.id.linLayoutTemp, showTemp ? View.VISIBLE : View.GONE);
views.setViewVisibility(R.id.linLayoutArm, showArm ? View.VISIBLE : View.GONE);
views.setViewVisibility(R.id.linLayoutLoad, showLoad ? View.VISIBLE : View.GONE);
views.setViewVisibility(R.id.linLayoutMem, showMemory ? View.VISIBLE : View.GONE);
views.setProgressBar(R.id.progressBarArmValue, 100, 0, false);
views.setProgressBar(R.id.progressBarLoad, 100, 0, false);
views.setProgressBar(R.id.progressBarMemory, 100, 0, false);
views.setProgressBar(R.id.progressBarTempValue, 100, 0, false);
appWidgetManager.updateAppWidget(appWidgetId, views);
return views;
}
@Override
public void onStop() {
super.onStop();
final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(this);
final ComponentName providerName = new ComponentName(this, WalletBalanceWidgetProvider.class);
try
{
final int[] appWidgetIds = appWidgetManager.getAppWidgetIds(providerName);
if (appWidgetIds.length > 0)
{
WalletBalanceWidgetProvider.runAsyncTask(this, appWidgetManager, appWidgetIds);
}
}
catch (final RuntimeException x)
{
}
}
/**
* Check against {@link AppWidgetManager} if there are any instances of this
* widget.
*/
protected boolean hasInstances(final Context context) {
final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
final int[] mAppWidgetIds = appWidgetManager.getAppWidgetIds(new ComponentName(context,
getClass()));
return mAppWidgetIds.length > 0;
}
void update() {
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(this);
RemoteViews views = new RemoteViews(getPackageName(), R.layout.shot_appwidget);
appWidgetManager.updateAppWidget(mAppWidgetId, views);
Intent resultValue = new Intent();
resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mAppWidgetId);
setResult(RESULT_OK, resultValue);
finish();
}
protected void pushUpdate(final Context context, final int[] appWidgetIds, final RemoteViews views) {
final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
if (appWidgetIds != null) {
appWidgetManager.updateAppWidget(appWidgetIds, views);
} else {
appWidgetManager.updateAppWidget(new ComponentName(context, getClass()), views);
}
}
static void init(Context context, int appWidgetId) {
Log.i("Widget unified init=" + appWidgetId);
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
if (appWidgetManager == null) {
Log.w("No app widget manager"); // Fairphone FP2
return;
}
Intent intent = new Intent(context, WidgetUnified.class);
intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[]{appWidgetId});
context.sendBroadcast(intent);
}
/**
* Check against {@link AppWidgetManager} if there are any instances of this
* widget.
*/
private boolean hasInstances(final Context context) {
final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
final int[] mAppWidgetIds = appWidgetManager.getAppWidgetIds(new ComponentName(context,
getClass()));
return mAppWidgetIds.length > 0;
}
@Override
public void onReceive(Context context, Intent intent){
super.onReceive(context, intent);
if (NEW_QUAKE_BROADCAST.equals(intent.getAction())) {
PendingResult pendingResult = goAsync();
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
ComponentName earthquakeWidget = new ComponentName(context, EarthquakeWidget.class);
int[] appWidgetIds = appWidgetManager.getAppWidgetIds(earthquakeWidget);
updateAppWidgets(context, appWidgetManager, appWidgetIds, pendingResult);
}
}
@Override
public void onReceive(Context context, Intent intent) {
AppWidgetManager manager = AppWidgetManager.getInstance(context);
int[] widgetIds = manager.getAppWidgetIds(new ComponentName(context, PirateBoxWidget.class));
if(intent.getAction().equals(WIDGET_INTENT_CLICKED)) {
Intent serviceIntent = new Intent(context, PirateBoxService.class);
boolean serverRunning = PirateBoxService.isRunning();
boolean startingUp = PirateBoxService.isStartingUp();
// Only start if not running an not starting up
if(!serverRunning && !startingUp) {
showIntermediateImage(context);
context.startService(serviceIntent);
}
// Only stop service, if service is running
else if(serverRunning) {
showIntermediateImage(context);
context.stopService(serviceIntent);
}
}
else {
showWidget(context, manager, widgetIds, PirateBoxService.isRunning());
}
}
/**
* Receive broadcast for refresh
*
* @param context Application context
* @param intent Intent to do something
*/
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(PRAYER_CHANGE) || action.equals(Intent.ACTION_DATE_CHANGED)) {
AppWidgetManager gm = AppWidgetManager.getInstance(context);
int[] ids = gm.getAppWidgetIds(new ComponentName(context, PrayerWidget.class));
this.onUpdate(context, gm, ids);
} else {
super.onReceive(context, intent);
}
}
protected void pushUpdate(final Context context, final int[] appWidgetIds) {
final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
if (appWidgetIds != null) {
appWidgetManager.updateAppWidget(appWidgetIds, appWidgetView);
} else {
appWidgetManager.updateAppWidget(new ComponentName(context, getClass()), appWidgetView);
}
}
@Override
public void onReceive(Context context, Intent intent) {
appendLog(context, TAG, "intent:", intent, ", widget:", getWidgetClass());
Bundle extras = intent.getExtras();
if (extras != null) {
int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID);
appendLog(context, TAG, "EXTRA_APPWIDGET_ID:" + appWidgetId);
}
super.onReceive(context, intent);
AppWidgetManager widgetManager = AppWidgetManager.getInstance(context);
Integer widgetId = null;
ComponentName widgetComponent = new ComponentName(context, getWidgetClass());
if (intent.hasExtra("widgetId")) {
widgetId = intent.getIntExtra("widgetId", 0);
if (widgetId == 0) {
widgetId = null;
}
}
if (widgetId == null) {
int[] widgetIds = widgetManager.getAppWidgetIds(widgetComponent);
if (widgetIds.length == 0) {
return;
}
for (int widgetIditer: widgetIds) {
performActionOnReceiveForWidget(context, intent, widgetIditer);
}
return;
}
performActionOnReceiveForWidget(context, intent, widgetId);
}
/**
* Converts the response to JSON and updates the database so that the latest weather data are
* displayed.
*
* @param response The response of the HTTP request.
*/
@Override
public void processSuccessScenario(String response) {
IDataExtractor extractor = new OwmDataExtractor();
try {
JSONObject json = new JSONObject(response);
JSONArray list = json.getJSONArray("list");
for (int i = 0; i < list.length(); i++) {
String currentItem = list.get(i).toString();
CurrentWeatherData weatherData = extractor.extractCurrentWeatherData(currentItem);
int cityId = extractor.extractCityID(currentItem);
// Data were not well-formed, abort
if (weatherData == null || cityId == Integer.MIN_VALUE) {
final String ERROR_MSG = context.getResources().getString(R.string.convert_to_json_error);
Toast.makeText(context, ERROR_MSG, Toast.LENGTH_LONG).show();
return;
}
// Could retrieve all data, so proceed
else {
weatherData.setCity_id(cityId);
CurrentWeatherData current = dbHelper.getCurrentWeatherByCityId(cityId);
if(current != null && current.getCity_id() == cityId) {
dbHelper.updateCurrentWeather(weatherData);
} else {
dbHelper.addCurrentWeather(weatherData);
}
}
}
//Update Widgets
AppWidgetManager awm = AppWidgetManager.getInstance(context);
int[] ids1 = awm.getAppWidgetIds(new ComponentName(context, WeatherWidget.class));
int[] ids3 = awm.getAppWidgetIds(new ComponentName(context, WeatherWidgetThreeDayForecast.class));
int[] ids5 = awm.getAppWidgetIds(new ComponentName(context, WeatherWidgetFiveDayForecast.class));
Intent intent1 = new Intent(context, WeatherWidget.class);
Intent intent3 = new Intent(context, WeatherWidgetThreeDayForecast.class);
Intent intent5 = new Intent(context, WeatherWidgetFiveDayForecast.class);
intent1.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
intent3.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
intent5.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
intent1.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, ids1);
intent3.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, ids3);
intent5.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, ids5);
context.sendBroadcast(intent1);
context.sendBroadcast(intent3);
context.sendBroadcast(intent5);
} catch (JSONException e) {
e.printStackTrace();
}
// TODO: Error Handling
}
public SearchWidgetProviderDelegate(Context context) {
mContext = context == null ? ContextUtils.getApplicationContext() : context;
mManager = AppWidgetManager.getInstance(mContext);
}
/**
* 通知界面去更新UI，需要在修改UI后调用（不含列表数据）
* @param context
*/
private void notifyUpdateUI(Context context) {
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
appWidgetManager.updateAppWidget(new ComponentName(context, CourseAppWidgetProvider.class), remoteViews);
}
@Override
public void renderData(WeatherEntity entity) {
if (entity == null) {
return;
}
mEntity = entity;
ComponentName thisWidget = new ComponentName(mContext, WeatherAppWidget.class);
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(mContext);
int[] appWidgetIds = appWidgetManager.getAppWidgetIds(thisWidget);
for (int i = 0; i < appWidgetIds.length; ++i) {
int appWidgetId = appWidgetIds[i];
RemoteViews views = new RemoteViews(mContext.getPackageName(), R.layout.app_widget_layout);
Intent intent = new Intent(mContext, SplashActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(mContext, 0, intent, 0);
views.setOnClickPendingIntent(R.id.ll_app_widget_root, pendingIntent);
if (entity.getForecasts().size() > 0) {
mDataDate = entity.getForecasts().get(0).getDate();
}
if (mDataDate != null && mDataDate.compareToIgnoreCase(StringUtil.getCurrentDateTime("yyyy-MM-dd")) != 0) {
views.setTextColor(R.id.tv_app_widget_weather_desc, mContext.getApplicationContext().getResources().getColor(R.color.colorAirFour));
views.setTextViewText(R.id.tv_app_widget_weather_desc, mContext.getApplicationContext().getString(R.string.data_out_of_date));
} else {
views.setTextColor(R.id.tv_app_widget_weather_desc, mContext.getApplicationContext().getResources().getColor(R.color.colorLightGray));
views.setTextViewText(R.id.tv_app_widget_weather_desc, entity.getWeatherDescription());
}
views.setImageViewResource(R.id.iv_app_widget_weather_icon, getWeatherIconId(entity.getWeatherDescription()));
views.setTextViewText(R.id.tv_app_widget_city_name, entity.getCityName());
views.setTextViewText(R.id.tv_app_widget_temp, entity.getCurrentTemperature() + "℃");
AirQulityRepresentation airQulityRepresentation = new AirQulityRepresentation();
getAirQualityTypeAndColor(entity.getAirQulityIndex(), airQulityRepresentation);
//views.setTextColor(R.id.tv_app_widget_air, airQulityRepresentation.getmAirQulityColorId());
views.setTextViewText(R.id.tv_app_widget_air, airQulityRepresentation.getmAirQulityType());
views.setTextViewText(R.id.tv_app_widget_time, StringUtil.getCurrentDateTime("HH:mm"));
views.setTextViewText(R.id.tv_app_widget_dayofweek, StringUtil.getCurrentDateTime("EEEE"));
views.setTextViewText(R.id.tv_app_widget_date, StringUtil.getCurrentDateTime("M月d日"));
String[] dateAndTime = entity.getDataUpdateTime().split(" ");
Date date = StringUtil.stringToDate("yyyy-MM-dd", dateAndTime[0]);
views.setTextViewText(R.id.tv_app_widget_update_time, StringUtil.getFriendlyDateString(date, false) + " " + dateAndTime[1] + " 发布");
appWidgetManager.updateAppWidget(appWidgetId, views);
}
LogUtil.e(TAG, "renderData");
}
private void performActionOnReceiveForWidget(Context context, Intent intent, int widgetId) {
AppWidgetManager widgetManager = AppWidgetManager.getInstance(context);
LocationsDbHelper locationsDbHelper = LocationsDbHelper.getInstance(context);
WidgetSettingsDbHelper widgetSettingsDbHelper = WidgetSettingsDbHelper.getInstance(context);
Long locationId = widgetSettingsDbHelper.getParamLong(widgetId, "locationId");
if (locationId == null) {
currentLocation = locationsDbHelper.getLocationByOrderId(0);
if (!currentLocation.isEnabled()) {
currentLocation = locationsDbHelper.getLocationByOrderId(1);
}
} else {
currentLocation = locationsDbHelper.getLocationById(locationId);
}
switch (intent.getAction()) {
case "org.thosp.yourlocalweather.action.WEATHER_UPDATE_RESULT":
case "android.appwidget.action.APPWIDGET_UPDATE":
if (!servicesStarted) {
onEnabled(context);
servicesStarted = true;
}
onUpdate(context, widgetManager, new int[] {widgetId});
break;
case Intent.ACTION_LOCALE_CHANGED:
case Constants.ACTION_APPWIDGET_THEME_CHANGED:
case Constants.ACTION_APPWIDGET_SETTINGS_SHOW_CONTROLS:
refreshWidgetValues(context);
break;
case Constants.ACTION_APPWIDGET_UPDATE_PERIOD_CHANGED:
onEnabled(context);
break;
case Constants.ACTION_APPWIDGET_CHANGE_SETTINGS:
onUpdate(context, widgetManager, new int[]{ widgetId});
break;
}
if (intent.getAction().startsWith(Constants.ACTION_APPWIDGET_SETTINGS_OPENED)) {
String[] params = intent.getAction().split("__");
String widgetIdTxt = params[1];
widgetId = Integer.parseInt(widgetIdTxt);
openWidgetSettings(context, widgetId, params[2]);
} else if (intent.getAction().startsWith(Constants.ACTION_APPWIDGET_START_ACTIVITY)) {
AppPreference.setCurrentLocationId(context, currentLocation);
Long widgetActionId = intent.getLongExtra("widgetAction", 1);
Class activityClass = WidgetActions.getById(widgetActionId, "action_current_weather_icon").getActivityClass();
Intent activityIntent = new Intent(context, activityClass);
activityIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
context.startActivity(activityIntent);
} else if (intent.getAction().startsWith(Constants.ACTION_APPWIDGET_CHANGE_LOCATION)) {
changeLocation(widgetId, locationsDbHelper, widgetSettingsDbHelper);
GraphUtils.invalidateGraph();
onUpdate(context, widgetManager, new int[]{widgetId});
} else if (intent.getAction().startsWith(Constants.ACTION_FORCED_APPWIDGET_UPDATE)) {
if (!WidgetRefreshIconService.isRotationActive) {
sendWeatherUpdate(context, widgetId);
}
onUpdate(context, widgetManager, new int[]{ widgetId});
}
}