如何让 Dialog 样式的活动窗口填满屏幕?

问题描述

我正在使用带有对话框主题集的活动，我希望它是全屏的.我尝试了各种方法，甚至通过 WindowManager 手动将窗口扩展到全宽和全高，但没有任何效果.

I am using an activity with the dialog theme set, and I want it to be full screen. I tried all sorts of things, even going through the WindowManager to expand the window to full width and height manually, but nothing works.

显然，对话窗口(或具有对话主题的活动)只会根据其内容展开，但即使这样也并不总是有效.例如，我展示了一个进度条圆圈，它的宽度和高度都设置为 FILL_PARENT(它的布局容器也是如此)，但对话框仍然围绕着小得多的进度条而不是填充屏幕.

Apparently, a dialog window (or an activity with the dialog theme) will only expand according to its contents, but even that doesn't always work. For instance, I show a progress bar circle which has width and height set to FILL_PARENT (so does its layout container), but still, the dialog wraps around the much smaller progress bar instead of filling the screen.

一定有一种方法可以在对话框窗口中显示一些小东西，但让它扩展到全屏大小而不调整其内容大小?

There must be a way of displaying something small inside a dialog window but have it expand to full screen size without its content resizing as well?

推荐答案

我找到了解决方案:

在您设置了 Theme.Dialog 样式的活动中，执行以下操作:

In your activity which has the Theme.Dialog style set, do this:

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.your_layout);

    getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
}

重要的是你调用Window.setLayout() 在你调用setContentView()，否则它不会工作.

It's important that you call Window.setLayout() after you call setContentView(), otherwise it won't work.

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