列出Android设备中所有启动的服务，及判断某个服务是否开启

Java代码

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;

}

}