Android - 以编程方式设置布局背景 [英] Android - set layout background programmatically

问题描述

我注意到 RelativeLayout 对象的 setBackground 方法针对 API 16 (Android 4.1) 及更高版本，但我的应用程序具有目标 API 8 和我不能使用它.

I have noticed that the setBackground method for the RelativeLayout object is targeted for API 16 (Android 4.1) and higher, but my application has the target API 8 and I cannot use it.

是否有其他解决方案可以解决此问题(除了使用 TargetApi(16) 标记类/方法或更改清单中的目标 API)?
谢谢！

Is there any alternative solution for this problem (besides marking the class/method with TargetApi(16) or changing the target API in the manifest)?
Thank you!

编辑:Eclipse 有问题，它向我显示了与 setBackgroundDrawable 相同的错误，但现在它似乎可以工作了.感谢您的帮助.

Edit: Eclipse was buggy and it showed me the same error for setBackgroundDrawable but now it seems to work. Thank you for your help.

推荐答案

使用以下之一:

• .setBackgroundColor(int)(如果您将其设置为颜色)
• .setBackgroundDrawable(Drawable)(如果您将其设置为 Drawable 类型；这已被弃用，并由 .setBackground(Drawable))
• .setBackgroundResource(int)(用于从 R.java 设置资源)

• .setBackgroundColor(int) (if you're setting it to a color)
• .setBackgroundDrawable(Drawable) (if you're setting it to a Drawable type; this is deprecated, and was replaced by .setBackground(Drawable))
• .setBackgroundResource(int) (for setting a resource from R.java)

如果您使用第二个，请确保对您的 API 版本进行条件检查:

If you use the second one, make sure to do a conditional check on your API version:

if (Build.VERSION.SDK_INT >= 16)
    view.setBackground(...);
else
    view.setBackgroundDrawable(...);

...并用 @TargetApi(16) 和 @SuppressWarnings("deprecation") 标记它.

... and mark it with @TargetApi(16) and @SuppressWarnings("deprecation").

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