Stars not reflecting user input · zhanghai/MaterialRatingBar#28

(7 评论) (7 反应) (1 负责人)Java (1,947 star) (206 fork)batch import

bughelp wanted

描述

I think this is a general issue with the RatingBar for Android, but wanted to post here to be sure as I couldn't find a definitive answer.

We have the MaterialRatingBar in our app (love it btw), using width=match_parent.

On some devices, when the user taps 1 star, the 2nd star updates. If they tap the 2nd star, the 3rd updates etc. User can never select 1 star and the star they select is never the correct one.

Samsung devices seem to suffer the worst with this issue. It works fine as well on plenty of devices. If we get rid of match_parent, it seems to work on all devices too.

贡献者指南

技术栈: androidjava
领域: mobile
议题类型: bug
难度: 3
预计时间: half day
活动状态: blocked
清晰度: clear
前置要求: Android development experienceCustom View measurement
新手友好度: 45
研究方向: Review the MaterialRatingBar source code, particularly the onTouchEvent and onMeasure methods, to understand how touch coordinates are translated to star selection. Examine the issue comments for device specific details and any suggested workarounds. Test with different layout widths to reproduce the bug on a Samsung device. Consider whether the issue lies in touch coordinate calculation when the view width is set to match parent.