day16

• Messenger
• ServerService
• client
• Application

Messenger

ServerService

public class ServerService extends Service {
    public ServerService() {
    }
    Messenger messenger= new Messenger(new Handler(){
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            Bundle data = msg.getData();
            String key = data.getString("key");
            Toast.makeText(ServerService.this, key, Toast.LENGTH_SHORT).show();

            Messenger to = msg.replyTo;
            Message obtain = Message.obtain();
            Bundle bundle = new Bundle();
            bundle.putString("ser","hahaha");
            obtain.setData(bundle);
            try {
                to.send(obtain);
                Log.i("TAG", obtain+"");
            } catch (RemoteException e) {
                e.printStackTrace();
            }
        }
    });
    @Override
    public IBinder onBind(Intent intent) {
        return messenger.getBinder();
    }
}

client

public class MainActivity extends AppCompatActivity {
    private ServiceConnection connection;
    private Messenger mes=new Messenger(new Handler(){
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            Bundle data = msg.getData();
            String s = data.getString("ser");
            Log.i("TAG", s);
            Toast.makeText(MainActivity.this, s, Toast.LENGTH_SHORT).show();
        }
    });
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Intent intent = new Intent();
        intent.setPackage("com.example.day16");
        intent.setAction("server");
        connection = new ServiceConnection() {
            @Override
            public void onServiceConnected(ComponentName name, IBinder service) {
                Messenger messenger = new Messenger(service);
                Message obtain = Message.obtain();
                Bundle bundle = new Bundle();
                bundle.putString("key","hehehe");
                obtain.setData(bundle);
                obtain.replyTo=mes;
                try {
                    messenger.send(obtain);
                } catch (RemoteException e) {
                    e.printStackTrace();
                }
            }

            @Override
            public void onServiceDisconnected(ComponentName name) {

            }
        };
        bindService(intent,connection,BIND_AUTO_CREATE);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        unbindService(connection);
    }
}

Application

public class MyApp extends Application {
    private static final String TAG="MyApp";
    public MyApp() {
        super();
    }

    @Override
    public void onCreate() {
        super.onCreate();
        Log.i(TAG, "onCreate: ");
    }

    @Override
    public void onTerminate() {
        super.onTerminate();
        Log.i(TAG, "onTerminate: ");
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        Log.i(TAG, "onConfigurationChanged: ");
    }

    @Override
    public void onLowMemory() {
        super.onLowMemory();
        Log.i(TAG, "onLowMemory: ");
    }

    @Override
    public void onTrimMemory(int level) {
        super.onTrimMemory(level);
        Log.i(TAG, "onTrimMemory: ");
    }
}