Custom AlertDialog Borders

I am creating a custom dialog. Its example code is: final AlertDialog dialog; protected AlertDialog createDialog(int dialogId) { AlertDialog.Builder builder; builder = new

Solution 1:

I don't think you can remove the borders by using AlertDialog.Builder.

What you can do is create a CustomDialog class that extends Dialog and in the constructor of your CustomDialog you inflate your customdialog.xml.

Also you will need to create a custom style for your dialog, that hides the borders. Here is an example:

    <style
      name="CustomStyle"
      parent="android:Theme.Dialog">
      <item
          name="android:windowBackground">@color/transparent</item>
      <item
          name="android:windowContentOverlay">@null</item>
    </style>

Also define the transparent color:

   <color
      name="transparent">#00000000</color>

And you will create your dialog using :

    CustomDialog dialog=new CustomDialog(this,R.style.CustomStyle);

Solution 2:

Create a custom theme:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="CustomDialog" parent="android:style/Theme.Dialog">
        <item name="android:windowBackground">@null</item>
    </style> 
</resources>

then use it:

builder = new AlertDialog.Builder(parent, R.style.CustomDialog);

Update

The constructor above is indeed API 11+. To work around this you need to extend AlertDialog (since its constructors are protected) and and then use constructor with theme parameter. To insert your custom view follow the instructions here - the FrameLayout trick described at the beginning.