选取框完成时触发事件 [英] Fire event when marquee completes

问题描述

I want to marquee text, and when the marquee completes (the 1 full marquee cycle), I want to trigger another event.有没有好的方法来做到这一点?选中文本视图时，我没有看到 OnEnd 或类似功能

I want to marquee text, and when the marquee completes (the 1 full marquee cycle), I want to trigger another event. Is there a good way to do this? I haven't seen an OnEnd or similar function when marquee-ing a textview

推荐答案

使用自定义的TextView，你可以重写onDraw来使用mMarquee的反射code> 字段和 mMarquee 字段的 mStatus 字段(请参阅 grepcode 上的 TextView 代码等).

using a custom TextView, you can override onDraw to use reflection on mMarquee field and on mStatus field of the mMarquee field (see TextView code on grepcode or such).

mStatus 运行时取值为 2，停止时取值为 0.

mStatus value is 2 when marquee is running, and 0 when stopped.

onDraw 调用很多，但特别是在跑马灯完成后立即调用.

onDraw is called a lot, but in particular, it is called right after the marquee is completed.

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