NativeScript/NativeScript

TextField text cursor going to the first position after value update

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#5,873 opened on May 28, 2018

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 (6 comments) (0 reactions) (0 assignees)TypeScript (23,592 stars) (1,634 forks)batch import
backlogbughelp wantedos: android

Description

From @yassern on May 25, 2018 19:49

This bug is android only, I have a Slider and a TextField that have the same ngModel attribute reference and when the value of that attribute is updated, the cursor goes to the first position of the input, no matters if the user use the textfield or the slider.

Sample project: https://play.nativescript.org/?template=play-ng&id=O0oLGQ&v=1

Copied from original issue: NativeScript/nativescript-angular#1348

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Contributor guide

Tech stack
typescriptangularandroid
Domain
mobile
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
NativeScript CLI setupAngular two way bindingAndroid SDK
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45
Research direction
Reproduce using the provided sample project (https://play.nativescript.org/?template=play ng&id=O0oLGQ&v=1). Investigate the TextField component implementation in NativeScript for Android, likely in tns core modules/widgets/text field. The issue occurs when updating the same ngModel from a Slider; examine the value change propagation and cursor position reset logic. Check existing comments for any suggestions or workarounds. A fix may involve preventing the cursor from resetting to the start on programmatic value updates.
TextField text cursor going to the first position after value update · NativeScript/NativeScript#5873 | Good First Issue