为什么警报生成器对话框的拐角处有额外的黑色？

Question

我正在尝试动态构建如下所示的警报对话框。一切正常。

 final Builder builder = new AlertDialog.Builder(context);
    builder.setView(view);
            builder.setCancelable(true);
            builder.setOnCancelListener(new SortOnCancelListener(viewable, this));
            dialog = builder.create();
            dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
            WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
            lp.copyFrom(dialog.getWindow().getAttributes());

            DisplayMetrics displaymetrics = new DisplayMetrics();
            ((Activity) context).getWindowManager().getDefaultDisplay().getMetrics(displaymetrics);

            lp.width = (int) ((int)displaymetrics.widthPixels * 0.6);
            lp.height = WindowManager.LayoutParams.WRAP_CONTENT;

            dialog.show();
            dialog.getWindow().setAttributes(lp);

除了我在角落周围有额外的黑色，如下所示

请让我知道哪里做错了。

谢谢，沙拉斯

Answer 1

添加此代码

dialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));

为什么警报生成器对话框的拐角处有额外的黑色？

Why the alertbuilder dialog is having extra black color around the corners?

android

android-alertdialog

android-windowmanager