Transparent background for constraint layout in android not working

I'm trying to make a custom android dialog with rounded corners. enter image description here

As you can see, the corners are rounded, but it leaves the white corner still intact.

CodePudding user response：

If you using Fragment that extends with DialogFragment()

 override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
    super.onViewCreated(view, savedInstanceState)
    requireDialog().window?.setBackgroundDrawableResource(R.drawable.white_curve_with_blue_outline)//you can use here the drawable
    requireDialog().window?.setBackgroundDrawable(ColorDrawable(Color.parseColor("#BF303030")))//you can use here the color/Transparent


}

CodePudding user response：

Try this in your dialogue activity

yourDialogName.window?.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))