Bug 40858 - SearchBar LongClick Crashes on ListView Header
Summary: SearchBar LongClick Crashes on ListView Header
Alias: None
Product: Forms
Classification: Xamarin
Component: Android ()
Version: 2.2.0
Hardware: PC Windows
: Normal major
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2016-05-04 13:09 UTC by ebubekirakgul
Modified: 2016-08-04 17:27 UTC (History)
6 users (show)

Tags: ac
Is this bug a regression?: ---
Last known good build:

example project (45.25 KB, application/zip)
2016-06-03 00:04 UTC, Pete Schmitz

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Description ebubekirakgul 2016-05-04 13:09:16 UTC
Steps to reproduce:

    - Create a ListView that Header property contains a Searchbar like below:

         <ListView x:Name="listView">
            <StackLayout HeightRequest="50">
              <SearchBar Placeholder="click to search"/>

    - Run the code on Android
    - Long press to Search bar on ListViewHeader


    App Crashes with NullReferenceException below StackTrace:

      at Xamarin.Forms.Platform.Android.CellAdapter.HandleContextMode (Android.Views.View view, Int32 position) [0x00090] in <filename unknown>:0 
      at Xamarin.Forms.Platform.Android.CellAdapter.OnItemLongClick (Android.Widget.AdapterView parent, Android.Views.View view, Int32 position, Int64 id) [0x00014] in <filename unknown>:0 
      at Android.Widget.AdapterView+IOnItemLongClickListenerInvoker.n_OnItemLongClick_Landroid_widget_AdapterView_Landroid_view_View_IJ (IntPtr jnienv, IntPtr native__this, IntPtr native_parent, IntPtr native_view, Int32 position, Int64 id) [0x00019] in /Users/builder/data/lanes/3053/a94a03b5/source/monodroid/src/Mono.Android/platforms/android-23/src/generated/Android.Widget.AdapterView.cs:360 
      at (wrapper dynamic-method) System.Object:288a13fc-8bf8-42a1-b868-3f8a1ec38351 (intptr,intptr,intptr,intptr,int,long)
Comment 1 Pete Schmitz 2016-06-03 00:04:46 UTC
Created attachment 16184 [details]
example project

This also occurs when the listview header contains an Entry or Editor.
Comment 2 Pete Schmitz 2016-06-03 00:06:03 UTC
To elaborate, the above exception is thrown when the entry or editor in the listview header is long-clicked.
Comment 3 Samantha Houts [MSFT] 2016-08-02 16:25:02 UTC
Should be fixed in 2.3.2-pre1. Thank you!
Comment 4 Parmendra Kumar 2016-08-04 17:27:07 UTC
I have checked this issue with Xamarin.Forms 2.3.2-pre1 and observed that this issue is working fine.

Hence closing this issue.