Bug 25677 - Null reference crash on Amazon Fire TV
Summary: Null reference crash on Amazon Fire TV
Alias: None
Product: Forms
Classification: Xamarin
Component: Forms (show other bugs)
Version: 1.3.0
Hardware: PC Windows
: Normal normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2014-12-31 18:43 UTC by Joel Barsotti
Modified: 2016-11-30 15:59 UTC (History)
7 users (show)

See Also:
Is this bug a regression?: ---
Last known good build:


Description Joel Barsotti 2014-12-31 18:43:52 UTC
System.NullReferenceException: Object reference not set to an instance of an object at at Xamarin.Forms.Platform.Android.Platform.UpdateActionBarHomeAsUp (Android.App.ActionBar) at at Xamarin.Forms.Platform.Android.Platform.HideActionBar () at at Xamarin.Forms.Platform.Android.Platform.UpdateActionBar () at at Xamarin.Forms.Platform.Android.Platform.SetPage (Xamarin.Forms.Page) at at Xamarin.Forms.Platform.Android.AndroidActivity.SetPage (Xamarin.Forms.Page) at Unified_Pattern_Generator.Droid.MainActivity.OnCreate (Android.OS.Bundle) [0x00053] in c:\Users\Joel\Documents\Visual Studio 2013\Projects\xxx\Unified Pattern Generator\Unified Pattern Generator\Unified_Pattern_Generator.Android\MainActivity.cs:31 at Android.App.Activity.n_OnCreate_Landroid_os_Bundle_ (intptr,intptr,intptr) [0x00011] in /Users/builder/data/lanes/monodroid-mlion-monodroid-4.20-series/ba9bbbdd/source/monodroid/src/Mono.Android/platforms/android-17/src/generated/Android.App.Activity.cs:2120 at at (wrapper dynamic-method) object.69896d32-31da-483d-a1b0-665af9ff71b5 (intptr,intptr,intptr)

Happens on Kindle Fire TV, haven't tested standard Fire tablets or phones.
Comment 1 Atin 2015-01-02 13:12:39 UTC
Hi Joel,

Could you please provide the Xamarin build info via Xamarin studio ->About XamarinStudio->Show details and attached your project? So we can try to reproduce this issue at our end.

Comment 3 Joel Barsotti 2015-01-02 13:49:23 UTC
current xamarin studio is 5.5.4 build 15.
Comment 4 Joel Barsotti 2015-01-08 14:48:43 UTC
Just to verify the project works fine on fire tablets, it appears to be specific to the fireTV.
Comment 5 Gleb 2016-01-21 20:20:30 UTC
I finally got tired from the situation with this. It's definitely a bug in the Xamarin code library that is there for 2 years.

Here is a code snippet based on Mono.Cecil that fixes it:
Comment 6 Jason Smith [MSFT] 2016-03-25 19:20:08 UTC
We do not currently support FireTV
Comment 7 Samantha Houts [MSFT] 2016-10-20 19:18:35 UTC
Should be fixed in 2.3.4-pre1. Thank you!

Note You need to log in before you can comment on or make changes to this bug.