安卓：进行更改到按钮的父视图 [英] Android: Making changes to a button's parent view

问题描述

我有里面一个按钮RelativeLayout的。一旦用户点击该按钮，我想更改父视图（RelativeLayout的）的背景。我知道我可以通过存储在变量父视图或按钮设置变量做到这一点，但我石灰，以避免（我有很好的理由不想要这个）。是不是有办法刚刚从按钮本身访问父视图？

I have a RelativeLayout with a button inside it. Once the user clicks on that button, I would like to change the background of the parent view (RelativeLayout). I know I can do this by storing the parent view in a variable or setting a tag on the button, but I'd lime to avoid that (I have very good reasons for not wanting this). Isn't there a way to just access the parent view from the button itself?

推荐答案

尝试<一href="http://developer.android.com/reference/android/view/View.html#getParent%28%29"><$c$c>View.getParent():

Button yourBtn = (Button) findViewById(R.id.your_btn);
RelativeLayout yourRelLay = (RelativeLayout) yourBtn.getParent();

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