Android Service 不被杀死并提高优先级

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Android Service 不被杀死有两种思路，一种是将APP设置为系统应用，另一种是增强service的生命力，即使屏幕背光关闭时也能运行。由于设置为系统应用需要root，所以一般使用后一种方法：

1.Androidmanifest.xml的许可：
<uses-permission android:name="android.permission.WAKE_LOCK"/>

<service android:name="com.xx.MyService" ></service>

2.绑定Activity：

private ServiceConnection conn=null;
private PowerManager.WakeLock mwl;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_mian);
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
mwl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "MyTag");
mwl.acquire();//屏幕关闭后服务继续

Intent service=new Intent(this,MyService.class);
startService(service);
conn = new ServiceConnection() {
@Override
public void onServiceDisconnected(ComponentName name) {
}
@Override
public void onServiceConnected(ComponentName name, IBinder service) {
}
};
bindService(service, conn, BIND_AUTO_CREATE);//绑定服务
}

@Override
protected void onDestroy() {
mwl.release();//释放
unbindService(conn);//解绑
super.onDestroy();
}

Android Service 提高优先级：

public class MyService extends Service {
@Override
public IBinder onBind(Intent intent) {

Notification notification = new Notification(R.drawable.ic_launcher, "title",System.currentTimeMillis());

        PendingIntent pintent = PendingIntent.getService(this, 0, intent, 0);
        notification.setLatestEventInfo(this, "Service",  "service is running", pintent);
        startForeground(0, notification);//设置最高级进程， id 为 0状态栏的 notification 将不会显示

return new MyBinder();
}

class MyBinder extends Binder{   }

@Override
public void onDestroy() {
stopForeground(true);//取消最高级进程
super.onDestroy();
}

}

Android Service 不被杀死并提高优先级

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原文地址：http://blog.csdn.net/a704755096/article/details/47021001