本文介绍了将AlertDialog按钮对准中心的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我将以下代码用于Android(Java)编程:
I use this codes for Android (Java) programming:
public static MessageBoxResult showOk(
Context context, String title, String message, String okMessage)
{
okDialogResult = MessageBoxResult.Closed;
// make a handler that throws a runtime exception when a message is received
final Handler handler = new Handler()
{
@Override
public void handleMessage(Message mesg)
{
throw new RuntimeException();
}
};
AlertDialog.Builder alert = new AlertDialog.Builder(context);
alert.setTitle(title);
alert.setMessage(message);
alert.setPositiveButton(okMessage, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
okDialogResult = MessageBoxResult.Positive;
handler.sendMessage(handler.obtainMessage());
}
});
AlertDialog dialog = alert.show();
// align button to center
Button b = (Button) dialog.findViewById(android.R.id.button1);
b.setGravity(Gravity.CENTER_HORIZONTAL);
// loop till a runtime exception is triggered.
try { Looper.loop(); }
catch(RuntimeException e2) {}
return okDialogResult;
}
我的问题是如何使按钮居中?如您所见,我尝试使用 Gravity.CENTER_HORIZONTAL
(也是 .CENTER
)将按钮对准cnenter,但没有任何变化。该按钮几乎位于正确的位置。
My problem is how make center the button? As you see I try to align button to cnenter using Gravity.CENTER_HORIZONTAL
(also .CENTER
) but nothing changes. The button is almost in right position.
推荐答案
这对我有用:
final AlertDialog.Builder builder = new AlertDialog.Builder(getActivity(), R.style.AppCompatAlertDialogStyle);
builder.setCancelable(true);
builder.setTitle(title);
builder.setMessage(message);
builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
});
final AlertDialog dialog = builder.create();
dialog.show(); //show() should be called before dialog.getButton().
final Button positiveButton = dialog.getButton(AlertDialog.BUTTON_POSITIVE);
LinearLayout.LayoutParams positiveButtonLL = (LinearLayout.LayoutParams) positiveButton.getLayoutParams();
positiveButtonLL.gravity = Gravity.CENTER;
positiveButton.setLayoutParams(positiveButtonLL);
这篇关于将AlertDialog按钮对准中心的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!