Chromecast + Cordova - problem with playing movie

[ghost]

Hi, I am trying to run ConnectSDK in Cordova. I can connect with my Chromecast device, but when I try to call device.getMediaPlayer().playMedia(("http://media.w3.org/2010/05/sintel/trailer.mp4", "video/mp4");, I get error:

com.connectsdk.cordova.JSCommandDispatcher$DispatcherException: Exception calling playMedia: java.lang.NullPointerException: Attempt to invoke interface method 'void com.connectsdk.service.capability.MediaPlayer.playMedia(com.connectsdk.core.MediaInfo, boolean, com.connectsdk.service.capability.MediaPlayer$LaunchListener)' on a null object reference

Do you know how to resolve this problem?

Cordova: 6.1.1
Plugins:
cordova-plugin-compat 1.0.0 "Compat"
cordova-plugin-connectsdk 1.6.0 "Connect SDK"
cordova-plugin-dialogs 1.2.1 "Notification"
cordova-plugin-file 4.2.0 "File"
cordova-plugin-file-transfer 1.5.1 "File Transfer"
cordova-plugin-whitelist 1.2.2 "Whitelist"
cordova-plugin-x-toast 2.5.1 "Toast"

[ghost]

I have already fixed it. In this case the chromecast was discovered always only as a DIAL device and the solution written by @jamescahall resolved my problem.

jamescahall commented on 22 Jan:
Ok. So the issue is that "onRouteAdded" is not getting called (except for like 1% of the time it seems). Instead "onRouteChanged" is being called. In this function, it checks to see if it's a new found service or not. There was no case to assume onRouteAdded was never called.

Just add this:

if (isNew) {
foundService = new ServiceDescription(CastService.ID, uuid,
castDevice.getIpAddress().getHostAddress());
foundService.setFriendlyName(castDevice.getFriendlyName());
foundService.setServiceID(CastService.ID);
listUpdateFlag = true;
isNew = false;
}

above the if (!isNew) in the CastDiscoveryProvider and all should be solved.

[Sprotte]

Where do you found the CastDiscoveryProvider, he is not part of the Cordova SDK, he comes from the native SDKs? Can you explain me how to apply these fix?

[ghost]

@Sprotte , this file is a part of native SDK (/your_app/platforms/android/cordova-plugin-connectsdk/Connect-SDK-Android/modules/google_cast/src/com/connectsdk/discovery/provider/CastDiscoveryProvider.java)

In this file you have to find method public void onRouteChanged(MediaRouter router, RouteInfo route) and add it:

        if (isNew) {
            foundService = new ServiceDescription(CastService.ID, uuid,
            castDevice.getIpAddress().getHostAddress());
            foundService.setFriendlyName(castDevice.getFriendlyName());
            foundService.setServiceID(CastService.ID);
            listUpdateFlag = true;
            isNew = false;
        }

        if (!isNew) { // rest code without any change

Remember that when you remove the connectsdk plugin and install it one more time, you have to change this piece of code everytime.

[JRogaishio]

@jasmin89 Thank you so much for your solution. I've been pulling my hair out for the last hour wondering why the service would only work sometimes.

[jdomian]

This worked for me as well. Was having the same issue when trying to invoke .launchWebApp(). Thanks for the fix.

[phablulo]

Also worked for me. Thank you so much, @jasmin89