Widget的點擊事件

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.example.widget_sample"    android:versionCode="1"    android:versionName="1.0" >     <uses-sdk        android:minSdkVersion="8"        android:targetSdkVersion="17" />     <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >                 <receiver android:name=".MainActivity" android:label="WIDGET_SAMPLE">            <intent-filter>                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />            </intent-filter>            <meta-data android:name="android.appwidget.provider" android:resource="@xml/my_widget" />        </receiver>                  <service android:name="MainActivity$MyService" >   <intent-filter>                <action android:name="Widget.Button.Click"></action>            </intent-filter>        </service>     </application> </manifest>

package com.example.widget_sample;import java.util.Timer;import android.app.PendingIntent;import android.app.Service;import android.appwidget.AppWidgetManager;import android.appwidget.AppWidgetProvider;import android.content.ComponentName;import android.content.Context;import android.content.Intent;import android.os.IBinder;import android.util.Log;import android.widget.RemoteViews;public class MainActivity extends AppWidgetProvider{public Context context;static int num = 100;static String tag_action = "Widget.Button.Click";public void onUpdate(Context con, AppWidgetManager appWidgetManager, int[] appWidgetIds) {context = con;Intent intent = new Intent(context, MyService.class);context.startService(intent);}//MyService服務程式public static class MyService extends Service {public void onStart(Intent intent, int startId){ComponentName thisWidget = new ComponentName(this, MainActivity.class);AppWidgetManager manager = AppWidgetManager.getInstance(this);RemoteViews remoteViews = new RemoteViews(getPackageName(), R.layout.activity_main);// 點擊按鈕時if (intent.getAction() != null){if (intent.getAction().equals(tag_action)){num--;}}remoteViews.setTextViewText(R.id.textView1, String.valueOf(num));// 定義一個Intent來發送按鈕ActionIntent prevInten = new Intent();prevInten.setAction(tag_action);// 用Intent執行個體化一個PendingIntentPendingIntent Pprevintent=PendingIntent.getService(this, 0, prevInten, 0);// 給RemoteView上的Button設定按鈕事件remoteViews.setOnClickPendingIntent(R.id.button1, Pprevintent);manager.updateAppWidget(thisWidget, remoteViews);}@Overridepublic IBinder onBind(Intent arg0) {// TODO Auto-generated method stubreturn null;}}}