i used com.android.camera.NEW_PICTURE to check whether an image is captured or not.
(receiver android:name="NewPhotoReceiver")
(intent-filter)
(action android:name="com.android.camera.NEW_PICTURE"/)
(data android:mimeType="image/*"/)
(/intent-filter)
(/receiver) but com.android.camera.NEW_PICTURE is not discussed any where in android developers site.