AlertDialog上背景模糊的java问题

Question

我试图用这篇文章模糊背景： https://stackoverflow.com/a/21278278/10837992

它的工作很好，但我有一个小问题的大小对话框

1. 我创建了自定义布局：

2. 我改变了方法的实现

                   AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
                   LayoutInflater inflater = this.getLayoutInflater();
                   View dialogView = inflater.inflate(R.layout.alert_dialog_layout, null);
                   builder.setView(dialogView);
                   TextView title = dialogView.findViewById(R.id.Title);
                   TextView desc = dialogView.findViewById(R.id.Desc);
   
                   title.setText("Title");
                   desc.setText("Desc");
                   AlertDialog alert = builder.create();
   
   
                   Bitmap map = new BlurUtils().takeScreenShot(getActivity());
                   Bitmap fast = new BlurUtils().fastblur(map, 50);
                   final Drawable drawable = new BitmapDrawable(getResources(), fast);
   
                   alert.getWindow().setBackgroundDrawable(drawable);
                   alert.show();
   

3. 运行此方法时，将裁剪对话框的大小： 截图：

Answer 1

好的，我找到一个解决方案：

刚刚在AlertDialog中添加了主题。建筑商

AlertDialog.Builder builder = new AlertDialog.Builder(getActivity(),android.R.style.Theme_DeviceDefault_Light_NoActionBar_Fullscreen);