如何从视图中获取窗口实例? [英] How to get the window instance from a view?

问题描述

我通过mWindowManager.addview()在windowManager中添加视图.现在，我想知道是否有可能获得window实例.他们是myView.getWindowID()和myView.getWindowToken()，但是我找不到从其中检索窗口实例的方法

i add a view in the windowManager via mWindowManager.addview(). Now i would like to know if it's possible to get the window instance. their is myView.getWindowID() and myView.getWindowToken() but i can't find a way to retrieve from it the window instance

推荐答案

如果您的View已附加到Activity，则可以这样做.

If your View has been attached to Activity, you can do like this.

View view; // your view
if (view.getContext() instanceof Activity) {
    Window window = ((Activity) view.getContext()).getWindow();
}

在API 19之后，有一种方便的方法来检查view.isAttachedToWindow()

After API 19, there is a convenient method to check, view.isAttachedToWindow()

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