监视任务栈中最新打开的程序

来源：互联网发布：金石软件官网编辑：程序博客网时间：2024/05/02 17:19

import java.util.List;import android.app.ActivityManager;import android.app.ActivityManager.RunningTaskInfo;import android.app.Service;import android.content.Intent;import android.os.IBinder;import android.os.SystemClock;/** * 看门狗服务 * @author Administrator * */public class WatchDogService extends Service {    private boolean isWatch;//是否监控    private ActivityManager am;    @Override    public IBinder onBind(Intent intent) {        // TODO Auto-generated method stub        return null;    }    @Override    public void onCreate() {        am = (ActivityManager) getSystemService(ACTIVITY_SERVICE);        watchDog();//看门狗的逻辑        super.onCreate();    }    private void watchDog(){        new Thread(){            public void run() {                isWatch = true;                while (isWatch) {                    //通过isWatch 来控制该线程                    //时刻监控任务栈                    List<RunningTaskInfo> runningTasks = am.getRunningTasks(1);//获取最新的任务栈集合                    RunningTaskInfo runningTaskInfo = runningTasks.get(0);//最新打开的任务栈（不管多少个栈，只看第一个）                    //任务栈中获取顶部activity                    String packName = runningTaskInfo.topActivity.getPackageName();                    System.out.println(packName);                    SystemClock.sleep(50);//每个50毫秒 狗监控任务栈                }            };        }.start();    }    @Override    public void onDestroy() {        // TODO Auto-generated method stub        isWatch = false;        super.onDestroy();    }}

清单文件中注册服务：

<service android:name="com.lqr.service.WatchDogService"></service>

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