Android Studio 之 启动和停止服务

运行截图

MainActivity.java
运行前

package csdn.example.com.pushmessage;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

import csdn.example.com.pushmessage.ServiceTest.MyService;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button startService = (Button) findViewById(R.id.start_service);
        Button stopService = (Button) findViewById(R.id.stop_service);
        startService.setOnClickListener(this);
        stopService.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.start_service:
                Intent startIntent = new Intent(this, MyService.class);
                startService(startIntent);//启动服务
                break;
            case R.id.stop_service:
                Intent stopIntent = new Intent(this,MyService.class);
                stopService(stopIntent);//停止服务
                break;
            default:
                break;
        }
    }
}

停止服务后运行截图


截图MyService.java

package csdn.example.com.pushmessage.ServiceTest;

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 IBinder onBind(Intent intent) {
        // TODO: Return the communication channel to the service.
        throw new UnsupportedOperationException("Not yet implemented");
    }

    @Override
    public void onCreate() {
        super.onCreate();
        Log.d("MyService","onCreate executed");
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Log.d("MyService","onStartCommand executed");
        return super.onStartCommand(intent, flags, startId);
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        Log.d("MyService","onDestroy executed");
    }
}

清单文件 AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="csdn.example.com.pushmessage">

    <application
        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">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <service
            android:name=".ServiceTest.MyService"
            android:enabled="true"
            android:exported="true"></service>
    </application>

</manifest>