Java tutorial
/* * The MIT License (MIT) * * Copyright (c) 2016 Carlos Andres Jimenez <apps@carlosandresjimenez.co> * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package co.carlosjimenez.android.currencyalerts.app.widget; import android.annotation.TargetApi; import android.app.PendingIntent; import android.appwidget.AppWidgetManager; import android.appwidget.AppWidgetProvider; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.os.Build; import android.support.annotation.NonNull; import android.support.v4.app.TaskStackBuilder; import android.widget.RemoteViews; import com.bumptech.glide.Glide; import com.bumptech.glide.request.target.AppWidgetTarget; import co.carlosjimenez.android.currencyalerts.app.DetailActivity; import co.carlosjimenez.android.currencyalerts.app.MainActivity; import co.carlosjimenez.android.currencyalerts.app.R; import co.carlosjimenez.android.currencyalerts.app.Utility; import co.carlosjimenez.android.currencyalerts.app.data.Currency; import co.carlosjimenez.android.currencyalerts.app.sync.ForexSyncAdapter; /** * Provider for a scrollable currency detail widget */ @TargetApi(Build.VERSION_CODES.HONEYCOMB) public class DetailWidgetProvider extends AppWidgetProvider { public final String LOG_TAG = DetailWidgetProvider.class.getSimpleName(); public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { // Perform this loop procedure for each App Widget that belongs to this provider for (int appWidgetId : appWidgetIds) { RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.widget_detail); // Create an Intent to launch MainActivity Intent intent = new Intent(context, MainActivity.class); PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0); views.setOnClickPendingIntent(R.id.widget, pendingIntent); // Set up the header setMainCurrencyDetails(context, views, appWidgetIds); // Set up the collection if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) { setRemoteAdapter(context, views, appWidgetIds); } else { setRemoteAdapterV11(context, views, appWidgetIds); } Intent clickIntentTemplate = new Intent(context, DetailActivity.class); PendingIntent clickPendingIntentTemplate = TaskStackBuilder.create(context) .addNextIntentWithParentStack(clickIntentTemplate) .getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT); views.setPendingIntentTemplate(R.id.widget_list, clickPendingIntentTemplate); views.setEmptyView(R.id.widget_list, R.id.widget_empty); // Tell the AppWidgetManager to perform an update on the current app widget appWidgetManager.updateAppWidget(appWidgetId, views); } } @Override public void onReceive(@NonNull Context context, @NonNull Intent intent) { super.onReceive(context, intent); if (ForexSyncAdapter.ACTION_DATA_UPDATED.equals(intent.getAction())) { AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context); int[] appWidgetIds = appWidgetManager.getAppWidgetIds(new ComponentName(context, getClass())); appWidgetManager.notifyAppWidgetViewDataChanged(appWidgetIds, R.id.widget_list); } } /** * Sets the remote adapter used to fill in the list items * * @param views RemoteViews to set the RemoteAdapter */ @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH) private void setRemoteAdapter(Context context, @NonNull final RemoteViews views, int[] appWidgetIds) { views.setRemoteAdapter(R.id.widget_list, new Intent(context, DetailWidgetRemoteViewsService.class)); } /** * Sets the remote adapter used to fill in the list items * * @param views RemoteViews to set the RemoteAdapter */ @SuppressWarnings("deprecation") private void setRemoteAdapterV11(Context context, @NonNull final RemoteViews views, int[] appWidgetIds) { views.setRemoteAdapter(0, R.id.widget_list, new Intent(context, DetailWidgetRemoteViewsService.class)); } /** * Helper method to set the main currency information on the header of the widget. * * @param context Context to use for resource localization * @param views Remote Views where we set the widget information * @param appWidgetIds Ids of every widget present. */ public void setMainCurrencyDetails(Context context, @NonNull final RemoteViews views, int[] appWidgetIds) { Currency mainCurrency = Utility.getMainCurrency(context); if (mainCurrency == null) return; AppWidgetTarget appWidgetTarget = new AppWidgetTarget(context, views, R.id.widget_main_currency_flag, appWidgetIds); Glide.with(context).load(mainCurrency.getCountryFlag()).asBitmap().error(R.drawable.globe) .into(appWidgetTarget); views.setTextViewText(R.id.widget_main_currency_id, mainCurrency.getId()); } }