Answer 1

You mean white frame ? I think it's a part of 9-patch drawable you can look up how Theme.Dialog is build in the SDK_FOLDER\platforms\android-sdkversion\data\res\values and then styles.xml and themes.xml

As i've said, the white frame is a part of the background image. its panel_background.9.png So if you want to change frame - you'll need different background image + need to overwrite in style setting it.

 <item name="android:windowBackground">@android:drawable/panel_background</item> 

and you'll need to define a style that will be derived from Theme.Dialog and have this

<item name="android:windowBackground">@drawable/your_drawable</item> 

so if you put in styles.xml something like

<style name="NewBorderDialogTheme" parent="android:Theme.Dialog">
 <item name="android:windowBackground">@drawable/your_drawable</item> 
</style>

Put new drawable and set your activity to the new theme - you should see your new border

Answered by: Alina887 | Posted: 26-02-2022

Answer 2

If you want to do it Programatically, try below code:

What you have to do:

When AlertDialog is visible on your screen, OnShowListener is called. So, by adding dialog.setOnShowListener(this) you will be able to customize your AlertDialog.

Code:

// Create AlertDialog
AlertDialog.Builder adb = new AlertDialog.Builder(context1);
    adb.setTitle(context1.getString(R.string.app_name))
    .setMessage(message)
    .setPositiveButton("Ok", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {

        }
});
AlertDialog dialog = adb.create();

// Make some UI changes for AlertDialog
dialog.setOnShowListener(new DialogInterface.OnShowListener() {
    @Override
    public void onShow(final DialogInterface dialog) {

        // Add or create your own background drawable for AlertDialog window
        Window view = ((AlertDialog)dialog).getWindow();
        view.setBackgroundDrawableResource(R.drawable.your_drawable);

        // Customize POSITIVE, NEGATIVE and NEUTRAL buttons.
        Button positiveButton = ((AlertDialog)dialog).getButton(DialogInterface.BUTTON_POSITIVE);
        positiveButton.setTextColor(context1.getResources().getColor(R.color.primaryColor));
        positiveButton.setTypeface(Typeface.DEFAULT_BOLD);
        positiveButton.invalidate();

        Button negativeButton = ((AlertDialog)dialog).getButton(DialogInterface.BUTTON_NEGATIVE);
        negativeButton.setTextColor(context1.getResources().getColor(R.color.primaryColor));
        negativeButton.setTypeface(Typeface.DEFAULT_BOLD);
        negativeButton.invalidate();

        Button neutralButton = ((AlertDialog)dialog).getButton(DialogInterface.BUTTON_NEUTRAL);
        neutralButton.setTextColor(context1.getResources().getColor(R.color.primaryColor));
        neutralButton.setTypeface(Typeface.DEFAULT_BOLD);
        neutralButton.invalidate();
    }
});

Answered by: Melanie114 | Posted: 26-02-2022

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