1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.example.android.stackwidget; 18 19 import android.app.PendingIntent; 20 import android.appwidget.AppWidgetManager; 21 import android.appwidget.AppWidgetProvider; 22 import android.content.Context; 23 import android.content.Intent; 24 import android.net.Uri; 25 import android.widget.RemoteViews; 26 import android.widget.Toast; 27 28 public class StackWidgetProvider extends AppWidgetProvider { 29 public static final String TOAST_ACTION = "com.example.android.stackwidget.TOAST_ACTION"; 30 public static final String EXTRA_ITEM = "com.example.android.stackwidget.EXTRA_ITEM"; 31 32 @Override onDeleted(Context context, int[] appWidgetIds)33 public void onDeleted(Context context, int[] appWidgetIds) { 34 super.onDeleted(context, appWidgetIds); 35 } 36 37 @Override onDisabled(Context context)38 public void onDisabled(Context context) { 39 super.onDisabled(context); 40 } 41 42 @Override onEnabled(Context context)43 public void onEnabled(Context context) { 44 super.onEnabled(context); 45 } 46 47 @Override onReceive(Context context, Intent intent)48 public void onReceive(Context context, Intent intent) { 49 AppWidgetManager mgr = AppWidgetManager.getInstance(context); 50 if (intent.getAction().equals(TOAST_ACTION)) { 51 int appWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, 52 AppWidgetManager.INVALID_APPWIDGET_ID); 53 int viewIndex = intent.getIntExtra(EXTRA_ITEM, 0); 54 Toast.makeText(context, "Touched view " + viewIndex, Toast.LENGTH_SHORT).show(); 55 } 56 super.onReceive(context, intent); 57 } 58 59 @Override onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds)60 public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { 61 // update each of the widgets with the remote adapter 62 for (int i = 0; i < appWidgetIds.length; ++i) { 63 64 // Here we setup the intent which points to the StackViewService which will 65 // provide the views for this collection. 66 Intent intent = new Intent(context, StackWidgetService.class); 67 intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]); 68 // When intents are compared, the extras are ignored, so we need to embed the extras 69 // into the data so that the extras will not be ignored. 70 intent.setData(Uri.parse(intent.toUri(Intent.URI_INTENT_SCHEME))); 71 RemoteViews rv = new RemoteViews(context.getPackageName(), R.layout.widget_layout); 72 rv.setRemoteAdapter(appWidgetIds[i], R.id.stack_view, intent); 73 74 // The empty view is displayed when the collection has no items. It should be a sibling 75 // of the collection view. 76 rv.setEmptyView(R.id.stack_view, R.id.empty_view); 77 78 // Here we setup the a pending intent template. Individuals items of a collection 79 // cannot setup their own pending intents, instead, the collection as a whole can 80 // setup a pending intent template, and the individual items can set a fillInIntent 81 // to create unique before on an item to item basis. 82 Intent toastIntent = new Intent(context, StackWidgetProvider.class); 83 toastIntent.setAction(StackWidgetProvider.TOAST_ACTION); 84 toastIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]); 85 intent.setData(Uri.parse(intent.toUri(Intent.URI_INTENT_SCHEME))); 86 PendingIntent toastPendingIntent = PendingIntent.getBroadcast(context, 0, toastIntent, 87 PendingIntent.FLAG_UPDATE_CURRENT); 88 rv.setPendingIntentTemplate(R.id.stack_view, toastPendingIntent); 89 90 appWidgetManager.updateAppWidget(appWidgetIds[i], rv); 91 } 92 super.onUpdate(context, appWidgetManager, appWidgetIds); 93 } 94 }