I've created a REALLY simple service and a really simple client. But, I see
some strange behavior. After I call unbindService and the service's
onDestroy method is called (as evidenced by a log message or toast), I can
still query the service.
1. When the service and client are bound, I can't see the service in the
Running Services panel
This has to be something stupid that I'm not seeing. Thanks in advance.
public class MyWeatherService extends Service {
int count = 1;
Messenger messengerFromClient = null;
IncomingHandler incomingHandler = new IncomingHandler();
Messenger messengerToClient = new Messenger(
incomingHandler);
class IncomingHandler extends Handler {
@Override
public void handleMessage(Message msg) {
messengerFromClient = msg.replyTo;
Bundle reply = new Bundle();
reply.putString("weather", "It's dark at night."
+ Integer.toString(count++));
Message replyMessage = Message.obtain();
replyMessage.setData(reply);
try {
messengerFromClient.send(replyMessage);
} catch (RemoteException e) {
e.printStackTrace();
}
}
}
@Override
public IBinder onBind(Intent intent) {
Toast.makeText(this, R.string.service_bound,
Toast.LENGTH_SHORT).show();
return messengerToClient.getBinder();
}
@Override
public void onDestroy() {
incomingHandler = null;
Toast.makeText(this, R.string.service_destroyed,
Toast.LENGTH_SHORT).show();
}
}
public class ServiceConsumerActivity extends Activity
implements OnClickListener {
Messenger messengerToService = null;
Messenger messengerFromService = new Messenger(
new IncomingHandler());
ServiceConnection connection =
new MyServiceConnection();
boolean isBound;
void bind() {
Intent intent = new Intent();
intent.setAction("com.allmycode.WEATHER");
isBound =
bindService(intent, connection,
Context.BIND_AUTO_CREATE);
}
void unbind() {
if (isBound) {
System.out.println("About to unbind");
unbindService(connection);
isBound = false;
}
}
public void queryService() {
Bundle bundle = new Bundle();
bundle.putString("location", "Philadelpha");
Message message = Message.obtain();
message.replyTo = messengerFromService;
message.setData(bundle);
try {
messengerToService.send(message);
} catch (RemoteException e) {
e.printStackTrace();
}
}
class IncomingHandler extends Handler {
@Override
public void handleMessage(Message msg) {
Bundle bundle = msg.getData();
textView1.setText(bundle.getString("weather"));
}
}
class MyServiceConnection implements ServiceConnection {
public void onServiceConnected(
ComponentName className, IBinder service) {
messengerToService = new Messenger(service);
}
public void onServiceDisconnected(ComponentName n) {
messengerToService = null;
Toast.makeText(ServiceConsumerActivity.this,
R.string.service_crashed, Toast.LENGTH_SHORT)
.show();
}
}
// //THIS STUFF IS BOILERPLATE:
public static TextView textView1;
Button bindButton, queryButton, unbindButton;
EditText locationText;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
bindButton = (Button) findViewById(R.id.buttonBind);
bindButton.setOnClickListener(this);
locationText =
(EditText) findViewById(R.id.editText1);
queryButton = (Button) findViewById(R.id.buttonQuery);
queryButton.setOnClickListener(this);
textView1 = (TextView) findViewById(R.id.textView1);
unbindButton =
(Button) findViewById(R.id.buttonUnbind);
unbindButton.setOnClickListener(this);
}
@Override
public void onClick(View view) {
if (view == bindButton) {
bind();
} else if (view == queryButton) {
queryService();
} else if (view == unbindButton) {
unbind();
}
}
}
--
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
