我怎样才能让对话框风格的活动窗口填满屏幕? [英] How can I get a Dialog style activity window to fill the screen?

问题描述

我正在使用一个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.

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，但即使如此也并不总是有效.例如，我展示了一个进度条圆圈，它的宽度和高度设置为 FILL_PARENT(它的布局容器也是如此)，但对话框仍然环绕在更小的进度条周围，而不是填满屏幕.

必须有一种方法可以在对话窗口中显示一些小的内容，但可以将其扩展到全屏大小而不调整其内容大小?

解决方案

我找到了解决方案:

在具有 Theme.Dialog 样式集的 Activity 中，执行以下操作:

@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.your_layout);getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);}

在调用 setContentView() 之后调用 Window.setLayout() 很重要，否则它不会工作.>

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.

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.

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?

解决方案

I found the solution:

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);
}

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

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