新手，在学习Service一开始就碰到了问题

是根据教程做的，在开启服务时闪退

MyService.java

package com.example.administrator.myhhhhh;

import android.app.Service;

import android.content.Intent;

import android.os.IBinder;

import android.util.Log;

public class MyService extends Service {

public MyService() {

}

@Override

public void onCreate() {

Log.i("LOG","onCreat");

super.onCreate();

}

@Override

public IBinder onBind(Intent intent) {

// TODO: Return the communication channel to the service.

throw new UnsupportedOperationException("Not yet implemented");

}

}

MainActivity.java

package com.example.administrator.myhhhhh;

import android.content.Intent;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

public class MainActivity extends AppCompatActivity implements View.OnClickListener{

private Button start,stop;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

Button start=(Button)findViewById(R.id.button);

Button stop=(Button)findViewById(R.id.button2);

start.setOnClickListener(this);

stop.setOnClickListener(this);

}

@Override

public void onClick(View v) {

Intent intent=new Intent("MyService");

switch (v.getId()){

case R.id.button:

startService(intent);

break;

case R.id.button2:

stopService(intent);

break;

}

}

}

Manifest.xml

package="com.example.administrator.myhhhhh">

android:allowBackup="true"

android:icon="@mipmap/ic_launcher"

android:label="@string/app_name"

android:roundIcon="@mipmap/ic_launcher_round"

android:supportsRtl="true"

android:theme="@style/AppTheme">

android:name=".MyService"

>

Logcat 错误提示：

05-04 21:28:44.377 21214-21214/com.example.administrator.myhhhhh E/AndroidRuntime: FATAL EXCEPTION: main

Process: com.example.administrator.myhhhhh, PID: 21214

java.lang.IllegalArgumentException: Service Intent must be explicit: Intent { act=MyService }

at android.app.ContextImpl.validateServiceIntent(ContextImpl.java:1851)

at android.app.ContextImpl.startServiceCommon(ContextImpl.java:1880)

at android.app.ContextImpl.startService(ContextImpl.java:1864)

at android.content.ContextWrapper.startService(ContextWrapper.java:516)

at com.example.administrator.myhhhhh.MainActivity.onClick(MainActivity.java:26)

at android.view.View.performClick(View.java:4918)

at android.view.View$PerformClick.run(View.java:20399)

at android.os.Handler.handleCallback(Handler.java:815)

at android.os.Handler.dispatchMessage(Handler.java:104)

at android.os.Looper.loop(Looper.java:194)

at android.app.ActivityThread.main(ActivityThread.java:5871)

at java.lang.reflect.Method.invoke(Native Method)

at java.lang.reflect.Method.invoke(Method.java:372)

at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1119)

at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:885)

05-04 21:28:44.434 21214-21214/com.example.administrator.myhhhhh I/Process: Sending signal. PID: 21214 SIG: 9