下面给出一个appWidget中Service通讯的例子
创建一个Service子类,用来处理appWidget发送过来的命令
- package com.example.service;
- import android.app.Service;
- import android.content.Intent;
- import android.os.IBinder;
- public class myService extends Service{
- @Override
- public IBinder onBind(Intent intent) {
- // TODO Auto-generated method stub
- return null;
- }
- @Override
- public int onStartCommand(Intent intent, int flags, int startId) {
- // TODO Auto-generated method stub
- System.out.println("--------------flags--------->" + flags);
- System.out.println("--------------startId--------->" + startId);
- System.out.println("----------------------->onStartCommand");
- String value = intent.getStringExtra("hello");
- System.out.println("value = " + value);
- return super.onStartCommand(intent, flags, startId);
- }
- }
为按钮绑定监听器,当点击按钮时发送一个Service
- /**
- * 到达指定的更新时间或者当用户向桌面添加AppWidget时被调用
- */
- @Override
- public void onUpdate(Context context, AppWidgetManager appWidgetManager,
- int[] appWidgetIds) {
- System.out.println("----------------onUpdate");
- // TODO Auto-generated method stub
- // 创建一个Intent对象
- Intent intent = new Intent(context, myService.class);
- intent.putExtra("hello", "我是一个Service");
- // 这里是getActivity,当然也可以是broadcastReceiver等 发送一个广播消息
- PendingIntent pendingIntent = PendingIntent.getService(context, 0,
- intent, 0);
- RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
- R.layout.appwidgetlayout);
- //为按钮绑定监听器
- remoteViews.setOnClickPendingIntent(R.id.btnSend, pendingIntent);
- // 更新Appwidget
- appWidgetManager.updateAppWidget(appWidgetIds, remoteViews);
- }
当然还要在AndroidMainfest上对Service进行注册
- <?xml version="1.0" encoding="utf-8"?>
- <manifest xmlns:android="http://schemas.android.com/apk/res/android"
- package="com.example.appwidgetdemo"
- 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" >
- <activity
- android:name="com.example.appwidgetdemo.MainActivity"
- android:label="@string/app_name" >
- <intent-filter>
- <action android:name="android.intent.action.MAIN" />
- <category android:name="android.intent.category.LAUNCHER" />
- </intent-filter>
- </activity>
- <receiver android:name="com.example.appwidgetdemo.appWidgetActivity" >
- <intent-filter>
- <action android:name="android.appwidget.action.APPWIDGET_UPDATE" >
- </action>
- </intent-filter>
- <meta-data
- android:name="android.appwidget.provider"
- android:resource="@xml/appwidget01" />
- </receiver>
- <span style="color:#ff0000;"><service android:name="com.example.service.myService" >
- </service></span>
- </application>
- </manifest>
启动后的效果
当点击按钮时会在控制台上打印:我是一个Service
当然你可以处理你感兴趣的事
样例代码
AppWidget应用(四)---PendingIntent 之 getService,布布扣,bubuko.com
AppWidget应用(四)---PendingIntent 之 getService
原文:http://www.cnblogs.com/veins/p/3831782.html