如果要使用9补丁 [英] When To Use 9-Patch

问题描述

有没有Android开发者文档说，当绘制资源可以是9补丁？为了把它的另一种方式，就是有一个文件，说沿着下列项目使用9补丁数据，如果用？

Is there any Android developer documentation that says when drawable resources can be 9-patch? To put it another way, is there a document that says something along the lines of "the following items use 9-patch data, if available"?

这是闲逛和经验，我已经了解到，9补丁显卡应该用于

From poking around and experience, I've learned that 9-patch graphics should be used for

• 在应用程序启动器图标
• 在添加到主屏幕选择列表中的应用小工具，壁纸和文件夹使用的图标
• 桌面壁纸，当以其它方式使用位图，例如：在画布上
• 按钮图形
• 视图背景

• application launcher icons
• icons used in the "Add to Home screen" selection list for App Widgets, Wallpapers, and Folders
• desktop wallpapers and when otherwise using BitMaps, e.g. on canvases
• button graphics
• view backgrounds

我一直惊讶地看到，当可绘制用于菜单图标和标签图标9补丁数据被忽略。

I've been surprised to see that 9-patch data is ignored when drawables are used for menu icons and tab icons.

推荐答案

9的补丁，最好使用当你有需要的液体宽度和/或高度的图像。

9-patches is best used when you have an image that needs a fluid width and/or height.

例如：在我的应用我有两个自定义按钮，整个视图的底部伸出。由于屏幕尺寸可能不同，我用9修补程序，以使按钮正常伸展。

Example: In my app I had two custom buttons that stretched across the bottom of the view. Because screen sizes can differ, I used 9-patches to allow the buttons to stretch correctly.

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