启动服务、启动线程、得到任务堆栈列表的简单代码

package com.example.mytask_server; /**引入包*/ import android.app.Service;// 服务的类 import android.os.IBinder; import android.os.Binder; import android.content.Intent; import android.util.Log; import java.util.List; import android.app.ActivityManager; import android.app.ActivityManager.RunningAppProcessInfo; import android.app.ActivityManager.RunningTaskInfo; import android.content.Context; /**计数的服务*/ public class CountService extends Service{ /**创建参数*/ boolean threadDisable ; int count; public IBinder onBind(Intent intent){ return null; } public void onCreate(){ super.onCreate(); /**创建一个线程，每秒计数器加一，并在控制台进行Log输出*/ new Thread(new Runnable(){ public void run(){ while(!threadDisable){ try{ Thread.sleep(5000);//暂停5秒 }catch(InterruptedException e){ } mytask();//显示任务栈内容 count++; Log.v("Mytask_server","Count is--"+count); if(count>29){ //退出线程、停止Service threadDisable=true; CountService.this.stopSelf(); } } } }).start(); } public void onDestroy(){ super.onDestroy(); /**服务停止时，终止计数进程*/ this.threadDisable = true; } public int getConunt(){ return count; } public void mytask(){//显示任务栈内容 ActivityManager activityManager = (ActivityManager)getSystemService(Context.ACTIVITY_SERVICE); List<RunningTaskInfo> tasks = activityManager.getRunningTasks(7);//这里最多显示7个 String rs1; for (RunningTaskInfo info : tasks) { if(info!=null){ rs1=info.topActivity.getPackageName(); Log.d("MyService","top---"+rs1); rs1=info.baseActivity.getPackageName(); Log.d("MyService","base---"+rs1); } else Log.d("MyService","******null*****"); } } class ServiceBinder extends Binder{ public CountService getService(){ return CountService.this; } } }