问题描述
当我在布局中使用它指定这个对话框 android:layout_width =match_parent
我得到这个对话框:
我需要对话框会更广泛任何想法?
您可以通过抓取 Window
对话框使用,并重置宽度。以下是一个简单的例子:
//首先显示对话框
AlertDialog dialog = new AlertDialog.Builder(this)
.setTitle(Test Dialog)
.setMessage(This should expand to the full width)
.show();
//抓住对话框的窗口,并更改宽度
WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
窗口窗口= dialog.getWindow();
lp.copyFrom(window.getAttributes());
//这使得对话框占据了整个宽度
lp.width = WindowManager.LayoutParams.MATCH_PARENT;
lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
window.setAttributes(lp);
这是最终结果。请注意,如果您需要微调事物(如更改背景等),则可以在对话框中执行更多样式。当我以前不得不这样做时,我通常会使用这个方法,并在构建器类中使用 setView()
自定义对话框中使用的布局。 p>
When I use in layout, which specifies this dialog android:layout_width="match_parent"
I get this dialog:
I need dialog which will be wider. Any ideas?
You can do that by grabbing the Window
object that the dialog uses, and resetting the width. Here's a simple example:
//show the dialog first
AlertDialog dialog = new AlertDialog.Builder(this)
.setTitle("Test Dialog")
.setMessage("This should expand to the full width")
.show();
//Grab the window of the dialog, and change the width
WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
Window window = dialog.getWindow();
lp.copyFrom(window.getAttributes());
//This makes the dialog take up the full width
lp.width = WindowManager.LayoutParams.MATCH_PARENT;
lp.height = WindowManager.LayoutParams.WRAP_CONTENT;
window.setAttributes(lp);
Here's the end result. Note that there's a lot more styling you can do to the dialog if you need to fine tune things (like change the background, etc). When I've had to do this in the past, I usually use this method, and customize the layout used in the dialog with setView()
on the builder class.
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