package com.pingyijinren.test; 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 { private DownloadBinder downloadBinder=new DownloadBinder(); public MyService() { } @Override public IBinder onBind(Intent intent) { // TODO: Return the communication channel to the service. //throw new UnsupportedOperationException("Not yet implemented"); return downloadBinder; } @Override public void onCreate(){ super.onCreate(); Log.d("MainActivity","create"); } @Override public int onStartCommand(Intent intent,int flags,int startId){ Log.d("MainActivity","startCommand"); return super.onStartCommand(intent,flags,startId); } @Override public void onDestroy(){ super.onDestroy(); Log.d("MainActivity","destroy"); } class DownloadBinder extends Binder { public void startDownload(){ Log.d("MainActivity","startDownload"); } public int getProgress(){ Log.d("MainActivity","getProgress"); return 0; } } }
package com.pingyijinren.test; import android.content.ComponentName; import android.content.Intent; import android.content.ServiceConnection; import android.os.IBinder; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; public class MainActivity extends AppCompatActivity{ private Button bindService; private Button cancelBindService; private MyService.DownloadBinder downloadBinder; private ServiceConnection serviceConnection=new ServiceConnection(){ @Override public void onServiceDisconnected(ComponentName name){} @Override public void onServiceConnected(ComponentName name, IBinder service){ downloadBinder=(MyService.DownloadBinder)service; downloadBinder.startDownload(); downloadBinder.getProgress(); } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); bindService=(Button)findViewById(R.id.bindService); cancelBindService=(Button)findViewById(R.id.cancelBindService); bindService.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent=new Intent(MainActivity.this,MyService.class); bindService(intent,serviceConnection,BIND_AUTO_CREATE); startService(intent); } }); cancelBindService.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { unbindService(serviceConnection); Intent intent=new Intent(MainActivity.this,MyService.class); stopService(intent); } }); } }