IssueTracker

Crashing but in the "com.android.support:mediarouter-v7" support library.

It seems that a number of devices in the wild do not support the RouteInfo.getPresentationDisplay() method despite reporting as API 17+.
As a result, a NoSuchMethodError exception is thrown MediaRouterJellybeanMr1.RouteInfo.getPresentationDisplay()'s implementation:

        public static Display getPresentationDisplay(Object routeObj) {
            return ((android.media.MediaRouter.RouteInfo)routeObj).getPresentationDisplay();
        }

Here is an example stack trace:

java.lang.NoSuchMethodError: android.media.MediaRouter$RouteInfo.getPresentationDisplay
       at android.support.v7.media.MediaRouterJellybeanMr1$RouteInfo.getPresentationDisplay()
       at android.support.v7.media.SystemMediaRouteProvider$JellybeanMr1Impl.onBuildSystemRouteDescriptor()
       at android.support.v7.media.SystemMediaRouteProvider$JellybeanImpl.onCreateRouteController()
       at android.support.v7.media.SystemMediaRouteProvider$JellybeanImpl.addSystemRouteNoPublish()
       at android.support.v7.media.SystemMediaRouteProvider$JellybeanImpl.updateSystemRoutes()
       at android.support.v7.media.SystemMediaRouteProvider$JellybeanImpl.()
       at android.support.v7.media.SystemMediaRouteProvider$JellybeanMr1Impl.()
       at android.support.v7.media.SystemMediaRouteProvider.obtain()
       at android.support.v7.media.MediaRouter$GlobalMediaRouter.()
       at android.support.v7.media.MediaRouter.getInstance()
       at com.google.android.libraries.cast.companionlibrary.cast.BaseCastManager.()
       at com.google.android.libraries.cast.companionlibrary.cast.VideoCastManager.()

The above stack trace happens in the CastCompanionLibrary's BaseCastManager's constructor:

    protected BaseCastManager(Context context, String applicationId) {
        ...
        mMediaRouter = MediaRouter.getInstance(mContext);
        ...
    }

Suggested fix would be putting this in a try-catch block and returning null on NoSuchMethodError.

~Philip Peng (phpeng-ms / Keripo)