xamarin/Xamarin.Forms

[UWP] ListView scroll issues

开放

#3,573 创建于 2018年8月15日

 (2 条评论) (1 个反应) (0 位负责人)C# (1,926 个派生)batch import
a/listviewe/4 :clock4:help wantedinactivep/UWPt/bug :bug:up-for-grabs

仓库指标

星标
 (5,644 个星标)
PR 合并指标
 (30 天内没有已合并 PR)

描述

Description

I have a ListView that demonstrates using the new binding capabilities (TargetNullValue, Fallback Value). Unfortunately the ListView misbehaves on UWP. Following back navigation from the detail page, the list stops scrolling until fingers are replaced on screen.

This is only reproducible when running from a device with a touch screen. I first tested this by remoting from a device with a touch screen and I couldn't reproduce

Steps to Reproduce

  1. Run the sample.
  2. Navigate to detail page (click on a monkey).
  3. Navigate back.
  4. Scroll the ListView.

Expected Behavior

The ListView scrolls perfectly.

Actual Behavior

The ListView scrolls then stops, and only resumes when the scroll gesture is restarted (fingers removed and replaced).

Basic Information

  • Version with issue: 3.2.0.729530-pre2
  • Issue also exists with 3.1 haven't tested back any further
  • IDE: VS2017 15.8
  • Platform Target Frameworks:
    • UWP: 10.0.16299.0

Reproduction Link

DataBindingDemos.zip

贡献者指南