安卓查看剪辑 [英] Android View Clipping

问题描述

有没有什么办法来定义的ViewGroup的剪辑区域的机器人（蜂窝）？例如，我有一个形象的背景下，具有圆角一个ListView。当我滚动列表，孩子们伸出过去背景的角落 - 我想preFER他们中的圆角裁剪。

Is there any way to define the clip region of a ViewGroup in android (Honeycomb)? For example, I have a ListView with an image background that has rounded corners. As I scroll through the list, the children stick out past the corners of the background - I would prefer them to clip within the rounded corners.

左图是它目前正在做的，右边的是什么，我想。

The left image is what it is currently doing, and the right is what I'd like.

我在看ClipDrawable，但似乎这可能仅用于进度条？

I was looking at ClipDrawable, but it seems that this may only be used for progress bars?

另外，我也想这样做的一个小部件。所以我不能使用自定义的视图，并覆盖OnDraw的掩盖。

Also, I'm trying to do this in a widget. So I cannot use a custom view and override onDraw for masking.

感谢您！

推荐答案

通过创建自定义布局覆盖的OnDraw（帆布油画）

呼叫 canvas.cli preCT（0，0，mCanvasWidth，mCanvasHeight）;

这将剪辑出去布局界各方意见。

this will clip all views that goes out of layout boundary.

不要忘记调用 setWillNotDraw（假）的构造函数，所以你的OnDraw就会执行

And don't forget to call setWillNotDraw(false) in constructor, so your onDraw will execute

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