AgoraIO-Extensions
Different callback time with Android & iOS when UserOffline event fired
Hello,
In the Agora for React-Native documentation, the 'UserOffline' event is defined as follows.
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UserOffline UserOffline: UserOfflineCallback Occurs when a remote user (Communication)/host (LiveBroadcasting) leaves the channel.
There are two reasons for users to become offline:
Leave the channel: When the user/host leaves the channel, the user/host sends a goodbye message. When this message is received, the SDK determines that the user/host leaves the channel. Drop offline: When no data packet of the user or host is received for a certain period of time (20 seconds for the Communication profile, and more for the LiveBroadcasting profile), the SDK assumes that the user/host drops offline. A poor network connection may lead to false detections, so we recommend using the Agora RTM SDK for reliable offline detection.
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I tested each other's calls using an Android device and an iOS device.
When an iOS device app is killed while on a call, the 'UserOffline' event is immediately called on the Android device. However, when an Android device app is killed while on a call, the 'UserOffline' event is called on the iOS device after about 20 seconds.
Why is the time for receiving the 'UserOffline' event different when I do the same thing that kills the app?
I would like to receive the 'UserOffline' event immediately. Is there any way?
thank you.
@LichKing-2234 What I am curious about is why the socket disconnection time is different between Android and iOS. Could you tell me why?
Because we disconnect the socket after receiving the applicationWillTerminate event on iOS.
@LichKing-2234 thank you very much. So, doesn't an event like applicationWillTerminate happen in Android?
https://newbedev.com/android-ondestroy-or-similar-method-in-application-class