android 判断service是否开启

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packagecom.tutor.runningservice;
importjava.util.List;
importandroid.app.Activity;
importandroid.app.ActivityManager;
importandroid.os.Bundle;
importandroid.widget.TextView;
publicclassRunningServiceextendsActivity{
/**Calledwhentheactivityisfirstcreated.*/
@Override
publicvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
//setContentView(R.layout.main);
TextViewmTextView=newTextView(this);
ActivityManagermActivityManager=(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
finalStringmusicClassName="com.android.launcher2.MusicService";
booleanb=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
privatebooleanMusicServiceIsStart(List<ActivityManager.RunningServiceInfo>mServiceList,StringclassName){
for(inti=0;i<mServiceList.size();i++)
{
if(className.equals(mServiceList.get(i).service.getClassName()))
{
returntrue;
}
}
returnfalse;
}
//获取所有启动的服务的类名
privateStringgetServiceClassName(List<ActivityManager.RunningServiceInfo>mServiceList){
Stringres="";
for(inti=0;i<mServiceList.size();i++){
res+=mServiceList.get(i).service.getClassName()+"\n";
}
returnres;
}
}

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