Bug 46165 - Editor in lower area of the screen is unusable with multiple lines of text
Summary: Editor in lower area of the screen is unusable with multiple lines of text
Alias: None
Product: Forms
Classification: Xamarin
Component: Forms ()
Version: unspecified
Hardware: PC Windows
: --- normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2016-10-28 21:12 UTC by Philipp Sumi
Modified: 2017-08-31 08:41 UTC (History)
3 users (show)

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

1: Open editor with multiline text. So far so good. (29.18 KB, image/png)
2016-10-28 21:12 UTC, Philipp Sumi
2: After clicking on 1st line, the rest of the text is out of reach. (14.55 KB, image/png)
2016-10-28 21:13 UTC, Philipp Sumi

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Description Philipp Sumi 2016-10-28 21:12:43 UTC
Created attachment 18264 [details]
1: Open editor with multiline text. So far so good.

Editing multi-line text with the Editor control is completely broken in XF. There are many issues, also with regards to just expanding while text is entered, but the most obvious one is this:

1: Opening the editor with multiline text. I'm doing a dirty hack to position the caret at the end of the text.
2: After clicking on the first line. I can't scroll down from there anymore. The user experience is completely broken at this point.
Comment 1 Philipp Sumi 2016-10-28 21:13:17 UTC
Created attachment 18265 [details]
2: After clicking on 1st line, the rest of the text is out of reach.
Comment 2 adrianknight89 2016-10-30 06:06:12 UTC
Did you try running in AdjustResize mode?
Comment 3 Philipp Sumi 2016-10-30 14:49:03 UTC
Just tried AdjustResize - same behavior.
Comment 4 adrianknight89 2016-10-31 05:28:07 UTC
You should attach a repro. I tried to reproduce this in AppCompat + AdjustResize but failed to do so.
Comment 5 Philipp Sumi 2016-11-02 09:27:45 UTC
Here's a minimal repro of the case:

<?xml version="1.0" encoding="utf-8"?>

<ContentPage ... >

        <StackLayout Padding="0">

          <Button HeightRequest="200" />
          <Button HeightRequest="200" />
          <Button HeightRequest="200" />
          <Button HeightRequest="200" />
          <Button HeightRequest="200" />
          <Editor Text="{Binding RideDescription}" HeightRequest="140" />

Comment 6 adrianknight89 2016-11-03 03:29:07 UTC
You should comment on https://github.com/xamarin/Xamarin.Forms/pull/422 so that it gets merged sooner.

I tested your repro. The editor does not scroll in AdjustPan, but if you switch to AdjustResize (in latest master) it works.

Add this before setting MainPage:

Xamarin.Forms.PlatformConfiguration.AndroidSpecific.Application.UseWindowSoftInputModeAdjust(Application.Current.On<Android>(), WindowSoftInputModeAdjust.Resize);

2.3.3-pre3 does not work, but master does. So I expect this issue to be resolved in an upcoming release.

At the moment, there is nothing you can do except for waiting.
Comment 7 Paul DiPietro [MSFT] 2017-03-19 22:38:13 UTC
Appears to still be occurring as far as I can see as of
Comment 8 Philipp Sumi 2017-03-20 00:40:35 UTC
Suggestion: You really should try some dog fooding and build a simple chat UI without cutting corners (such as putting the text input on top).

This has been a subject so often in the forums, because it's nearly impossible to get something that basic done in XF. You would think this can be done in less than two hours, but I literally spent weeks trying to get the chat part of my app usable, and it still feels clunky, despite a myriad of super dirty hacks in place.
Comment 9 Philipp Sumi 2017-08-31 08:41:05 UTC
Any word on this one?