将按钮扩展到x，y位置 [英] Expanding button to x,y positions

问题描述

这是我的两个按钮: http://prntscr.com/hos2hz (忽略虚线)

Here are my two buttons: http://prntscr.com/hos2hz (Ignore the dotted line)

我希望GREEN按钮可以用动画扩展以填充整个视图(以红色突出显示): http://prntscr.com/hos3hm

I want the GREEN button to expand with an animation to fill the whole of the view (highlighted in red): http://prntscr.com/hos3hm

如果答案可以是编程方式而不是XML，那就太好了.

If the answer could be programmatically, rather than XML, that would be fantastic.

我想这可能与扩展到其父视图，或更可能是扩展到X，Y，Width，Height位置有关，但我不太确定.

I would imagine it would be something to do with expanding to its parent view, or more likely to an X,Y,Width,Height position, but I'm not quite sure.

非常感谢所有帮助:)

推荐答案

您可以执行以下操作

TransitionManager.beginDelayedTransition(parent);

RelativeLayout.LayoutParams parms = (RelativeLayout.LayoutParams) child.getLayoutParams();
parms.height = RelativeLayout.LayoutParams.MATCH_PARENT;
parms.width = RelativeLayout.LayoutParams.MATCH_PARENT;

child.setLayoutParams(parms);

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