Hi All,
Currently I am trying to access the Service which is implemented in
one application and accessed by another application. But it is not
happening.
Below I explain the code for reference, Please check it out.
Consider the implemented Service application as "Server" and accessing
the Service application as "Client".
IRemoteService.aidl:(This class is append in both the Server and
Client application)
interface IRemoteService {
int getCounter();
}
Server Application:
RemoteService:(This is Service implemented class)
public class RemoteService extends Service {
private Handler serviceHandler;
private int counter;
private Task myTask = new Task();
@Override
public IBinder onBind(Intent arg0) {
Log.d(getClass().getSimpleName(), "onBind()");
return remoteServiceStub;
}
private IRemoteService.Stub remoteServiceStub =
new IRemoteService.Stub() {
public int getCounter() throws RemoteException {
return counter;
}};
@Override
public void onCreate() {
super.onCreate();
Log.d(getClass().getSimpleName(),"onCreate()");
}
@Override
public void onDestroy() {
super.onDestroy();
serviceHandler.removeCallbacks(myTask);
serviceHandler = null;
Log.d(getClass().getSimpleName(),"onDestroy()");
}
@Override
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
serviceHandler = new Handler();
serviceHandler.postDelayed(myTask, 1000L);
Log.d(getClass().getSimpleName(), "onStart()");
}
class Task implements Runnable {
public void run() {
++counter;
serviceHandler.postDelayed(this,1000L);
Log.i(getClass().getSimpleName(),
"Incrementing counter in the run
method");
}
}
}
Manifest file for Server Application:
<service android:name="RemoteService" android:exported="true"
android:enabled="true">
</service>
Client Application:
RemoteServiceClientDemo : (This class accessing the method in the
interface)
public class RemoteServiceClientDemo extends Activity {
private IRemoteService remoteService;
private boolean started = false;
private RemoteServiceConnection conn = null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button start = (Button)findViewById(R.id.startButton);
Button stop = (Button)findViewById(R.id.stopButton);
Button bind = (Button)findViewById(R.id.bindButton);
Button release = (Button)findViewById(R.id.releaseButton);
Button invoke = (Button)findViewById(R.id.invokeButton);
start.setOnClickListener(new OnClickListener() {
public void onClick(View v){
startService();
}
});
stop.setOnClickListener(new OnClickListener() {
public void onClick(View v){
stopService();
}
});
bind.setOnClickListener(new OnClickListener() {
public void onClick(View v){
bindService();
}
});
release.setOnClickListener(new OnClickListener() {
public void onClick(View v){
releaseService();
}
});
invoke.setOnClickListener(new OnClickListener() {
public void onClick(View v){
invokeService();
}
});
}
private void startService(){
if (started) {
Toast.makeText(RemoteServiceClientDemo.this,
"Service already started",
Toast.LENGTH_SHORT).show();
} else {
Intent i = new Intent();
i.setClassName("com.demo",
"com.demo.RemoteService");
startService(i);
started = true;
updateServiceStatus();
Log.d( getClass().getSimpleName(), "startService()" );
}
}
private void stopService() {
if (!started) {
Toast.makeText(RemoteServiceClientDemo.this,
"Service not yet started", Toast.LENGTH_SHORT).show();
} else {
Intent i = new Intent();
i.setClassName("com.demo",
"com.demo.RemoteService");
stopService(i);
started = false;
updateServiceStatus();
Log.d( getClass().getSimpleName(), "stopService()" );
}
}
private void bindService() {
if(conn == null) {
conn = new RemoteServiceConnection();
Intent i = new Intent();
i.setClassName("com.demo",
"com.demo.RemoteService");
bindService(i, conn, Context.BIND_AUTO_CREATE);
updateServiceStatus();
Log.d( getClass().getSimpleName(), "bindService()" );
} else {
Toast.makeText(RemoteServiceClientDemo.this,
"Cannot bind - service already bound",
Toast.LENGTH_SHORT).show();
}
}
private void releaseService() {
if(conn != null) {
unbindService(conn);
conn = null;
updateServiceStatus();
Log.d( getClass().getSimpleName(), "releaseService()" );
} else {
Toast.makeText(RemoteServiceClientDemo.this,
"Cannot unbind - service not bound",
Toast.LENGTH_SHORT).show();
}
}
private void invokeService() {
if(conn == null) {
Toast.makeText(RemoteServiceClientDemo.this,
"Cannot invoke - service not bound",
Toast.LENGTH_SHORT).show();
} else {
try {
int counter = remoteService.getCounter();
TextView t = (TextView)findViewById(R.id.notApplicable);
t.setText( "Counter value: "+Integer.toString( counter
) );
Log.d( getClass().getSimpleName(), "invokeService()" );
} catch (RemoteException re) {
Log.e( getClass().getSimpleName(), "RemoteException" );
}
}
}
class RemoteServiceConnection implements ServiceConnection {
public void onServiceConnected(ComponentName className,
IBinder boundService ) {
remoteService =
IRemoteService.Stub.asInterface((IBinder)boundService);
Log.d( getClass().getSimpleName(),
"onServiceConnected()" );
}
public void onServiceDisconnected(ComponentName className) {
remoteService = null;
updateServiceStatus();
Log.d( getClass().getSimpleName(),
"onServiceDisconnected" );
}
};
private void updateServiceStatus() {
String bindStatus = conn == null ? "unbound" : "bound";
String startStatus = started ? "started" : "not started";
String statusText = "Service status: "+
bindStatus+ ","+
startStatus;
TextView t = (TextView)findViewById( R.id.serviceStatus);
t.setText( statusText );
}
protected void onDestroy() {
super.onDestroy();
releaseService();
Log.d( getClass().getSimpleName(), "onDestroy()" );
}
}
Manifest file for Client application:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android";
package="com.demo"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="@drawable/icon" android:label="@string/
app_name">
<activity android:name=".RemoteServiceClientDemo"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category
android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<uses-sdk android:minSdkVersion="3" />
</manifest>
Thanks
Hari
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