在Service中使用广播接受者
1、清单文件
<service android:name="com.example.callmethod.MyService"></service>
2、开启服务和发送广播
1 package com.example.callmethod; 2 3 import android.os.Bundle; 4 import android.app.Activity; 5 import android.content.Intent; 6 import android.view.Menu; 7 import android.view.View; 8 9 public class MainActivity extends Activity { 10 11 @Override 12 protected void onCreate(Bundle savedInstanceState) { 13 super.onCreate(savedInstanceState); 14 setContentView(R.layout.activity_main); 15 Intent intent = new Intent(this, MyService.class); 16 startService(intent); 17 } 18 19 public void call(View view){ 20 //发送广播 21 Intent intent = new Intent(); 22 intent.setAction("com.example.callMethod"); 23 sendBroadcast(intent); 24 } 25 26 }
3、实现Service
1 package com.example.callmethod; 2 3 import android.app.Service; 4 import android.content.BroadcastReceiver; 5 import android.content.Context; 6 import android.content.Intent; 7 import android.content.IntentFilter; 8 import android.os.IBinder; 9 import android.widget.Toast; 10 11 public class MyService extends Service { 12 13 private MyRecervice recervice; 14 @Override 15 public IBinder onBind(Intent intent) { 16 // TODO Auto-generated method stub 17 return null; 18 } 19 20 @Override 21 public void onCreate() { 22 //采用代码的方式实现广播接受者,所以不需要再清单文件中进行配置 23 recervice = new MyRecervice(); 24 IntentFilter filter = new IntentFilter(); 25 filter.addAction("com.example.callMethod");//说明它接收的action 26 registerReceiver(recervice, filter); 27 super.onCreate(); 28 } 29 30 @Override 31 public void onDestroy() { 32 // TODO Auto-generated method stub 33 unregisterReceiver(recervice); 34 recervice = null; 35 super.onDestroy(); 36 } 37 38 public void methodInService(){ 39 Toast.makeText(this, "我是服务的方法", 0).show(); 40 } 41 42 private class MyRecervice extends BroadcastReceiver{ 43 //当接收到广播后，调用的方法 44 @Override 45 public void onReceive(Context context, Intent intent) { 46 // TODO Auto-generated method stub 47 System.out.println("我是服务内部的广播接收者，接收了广播事件"); 48 methodInService(); 49 } 50 51 } 52 53 }
