自定义ViewGroup示例? [英] custom ViewGroup example?

问题描述

我在Google，Android文档上的SO上进行了搜索...

I searched here on SO, on Google, on the android docs...

但是我找不到一个带有自定义视图组示例的代码片段，我最多只能找到一些模糊的解释...

But I cannot find a single snippet of code with a example of custom viewgroup, I find at most some vague explanations...

有人可以提供吗?如何创建一个视图组，可以在其中放置其子级?

Can someone provide one? How you make a viewgroup where you can put its children where you want?

推荐答案

我认为最简单的示例是AbsoluteLayout.java的来源

I think the simplest example to look at is the source for AbsoluteLayout.java

https://github.com/android/platform_frameworks_base/blob/master/core/java/android/widget/AbsoluteLayout.java

您需要覆盖onMeasure来度量子级，并覆盖onLayout来对其进行定位.

You need to override onMeasure to measure the children and onLayout to position them.

如果您愿意，我也可以共享非常复杂的ViewGroup代码.

I have strikingly more complicated ViewGroup code I can share as well if you want.

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