在java中设置背景图片 [英] Setting background image in java

问题描述

所以基本上，我有一个xml，我想重用。内容有些是一样的，只是背景不同，一些调整太..我该如何去做到这一点。我曾尝试 View.setBackGroundDrawable（R.drawable.sample）; ，但它不工作。我的应用程序崩溃。我已经把我的形象，虽然里面的文件夹绘制的一个。

So basically, I have an xml, which i want to reuse. The content is somewhat the same, only the background is different and a few adjustment too.. How can I go about to do this.. I have tried View.setBackGroundDrawable(R.drawable.sample); but it does not work. My app crash. I've placed my image inside one of the drawable folder though.

推荐答案

您可以尝试在你的XML分配为您布局的ID，这样在你的java code，可以为其设置不同的布局..下面是一个例子：

You can try to assign an id for your layout on your xml so that on your java code, you can set a different layout for it.. Here is an example:

 //assuming your Layout is named linearlayout1:
 LinearLayout ll = (LinearLayout) findViewById(R.id.linearlayout1);
 ll.setBackgroundResource(R.drawable.sample);

您还可以创建，如果设置你的背景像以前一样的语句：

You can also create if statements before setting your background like:

LinearLayout ll = (LinearLayout) findViewById(R.id.linearlayout1);
if( yourifstatement) {
ll.setBackgroundResource(R.drawable.sample);
}

如果它是一个RelativeLayout的，那么同样code适用，只是改变的LinearLayout到RelativeLayout的。

If it is a RelativeLayout, then the same code applies, just change LinearLayout to RelativeLayout.

如果这不是问题，请发表您的LogCat中。

If this is not the problem, please post your LogCat.

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