xamarin/Xamarin.Forms

Xamarin 3.5 - pinch gesture is choking

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#5,381 opened on Feb 25, 2019

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 (6 comments) (0 reactions) (0 assignees)C# (1,926 forks)batch import
3.5.0a/gestures 🖖e/3 :clock3:help wantedi/regressionp/Androidt/bug :bug:up-for-grabs

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Description

Description

Try to use PinchGestureRecognizer Tested on Android API 28

Steps to Reproduce

Install Xamarin Forms 3.5.0.169047 or 3.5.0.129452 Try zoom in/out image with pinch

Expected Behavior

Works fluent like in Xamarin Forms 3.4.0.1029999

Actual Behavior

zooming jumps and stops

Contributor guide

Research direction
Investigate the gesture handling in the Android custom renderer for PinchGestureRecognizer, specifically looking at how zooming is computed and why it jumps.
Tech stack
csharp
Domain
mobile
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C#Xamarin.Forms
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40