Android：week 13总结 绑定服务、音乐播放器(服务)
16lz
2022-04-02
目录
Monday
1.绑定服务
Tuesday
1.音乐播放器
Monday
1.绑定服务
MyService:
package cn.rjxy.mybindservice008;import android.app.Service;import android.content.Intent;import android.os.Binder;import android.os.IBinder;import android.util.Log;public class MyService extends Service { public MyService() { } class MyBinder extends Binder{ public void callService(){ Log.d("Binder", "callService"); serviceMethod1(); } } public void serviceMethod1(){ Log.d("service", "serviceMethod1"); } @Override public IBinder onBind(Intent intent) { // TODO: Return the communication channel to the service. Log.d("service", "onBind"); return new MyBinder(); } public boolean onUnbind(Intent intent){ Log.d("service", "onUnbind"); return super.onUnbind(intent); } public void onCreate(){ super.onCreate(); Log.d("service", "onCreate"); }}MainActivity:
package cn.rjxy.mybindservice008;import androidx.appcompat.app.AppCompatActivity;import android.content.ComponentName;import android.content.Intent;import android.content.ServiceConnection;import android.os.Bundle;import android.os.IBinder;import android.util.Log;import android.view.View;public class MainActivity extends AppCompatActivity { private MyService.MyBinder myBinder; private MyServiceConnection connection; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } private class MyServiceConnection implements ServiceConnection{ public void onServiceConnected(ComponentName componentName, IBinder service){ myBinder = (MyService.MyBinder)service; Log.d("MyServiceConnection", "onServiceConnected: get Binder"); } public void onServiceDisconnected(ComponentName componentName){ Log.d("MyServiceConnection", "onServiceDisconnected"); } } public void click(View view){ switch (view.getId()){ case R.id.start: if(connection == null) connection = new MyServiceConnection(); Intent intent = new Intent(this, MyService.class); bindService(intent, connection, BIND_AUTO_CREATE); break; case R.id.output: myBinder.callService(); break; case R.id.stop: if(connection != null) unbindService(connection); connection = null; break; } }}
Tuesday
1.音乐播放器
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