视图不会重绘
当用户选择菜单选项时，我在 onMenuItemSelected 中捕获它，然后调用
findViewById(R.id.xyz).setVisibility(View.VISIBLE);
但视图并不可见。我尝试了各种方法来强制重绘，但它就是不会重绘。
想法？
when a user selects a menu option, I catch it in onMenuItemSelected and then call
findViewById(R.id.xyz).setVisibility(View.VISIBLE);
But the view doesn't become visible. I tried all kinds of things to force a redraw, but it just won't redraw.
ideas?
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可能将其转换为任何类型的对象，例如它是一个按钮：
我知道我会尝试，甚至：
但是它可能与您的 Z 顺序有关。您可能会以一种奇怪的方式绘制它们，因此它正在被绘制，但只是在另一个视图下？请随时通知我们，我相信您会找到解决方案！
Possibly casting it to whatever type of object it is, such as if it were a button:
I know I would try that and even :
However it might have something to do with your Z-order. You might be drawing them in a weird way so it is being drawn, but simply beneath another view? Keep us posted, and I'm sure you'll find the solution!