列出Android设备中所有启动的服务，及判断某个服务是否开启

转自http://407827531.iteye.com/blog/975394

package com.tutor.runningservice; import java.util.List; import android.app.Activity; import android.app.ActivityManager; import android.os.Bundle; import android.widget.TextView; public class RunningService extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //setContentView(R.layout.main); TextView mTextView = new TextView(this); ActivityManager mActivityManager = (ActivityManager)getSystemService(ACTIVITY_SERVICE); List<ActivityManager.RunningServiceInfo> mServiceList = mActivityManager.getRunningServices(30); //我要判断的服务名字，我在launcher2里加了一个音乐服务 final String musicClassName = "com.android.launcher2.MusicService"; boolean b = MusicServiceIsStart(mServiceList, musicClassName); mTextView.setText("你要判断的服务状态为: " +b+"/n" + getServiceClassName(mServiceList)); setContentView(mTextView); } //通过Service的类名来判断是否启动某个服务 private boolean MusicServiceIsStart(List<ActivityManager.RunningServiceInfo> mServiceList,String className){ for(int i = 0; i < mServiceList.size(); i ++){ if(className.equals(mServiceList.get(i).service.getClassName())){ return true; } } return false; } //获取所有启动的服务的类名 private String getServiceClassName(List<ActivityManager.RunningServiceInfo> mServiceList){ String res = ""; for(int i = 0; i < mServiceList.size(); i ++){ res+=mServiceList.get(i).service.getClassName()+ " /n"; } return res; } }