Images for AlertDialog buttons

Question

Is it possible to add drawables to the positive, negative and neutral buttons of an AlertDialog? If yes, then how?

Answer 1

As @aaronvargas said, use onShowListener. I will improve his answer a little bit, since for older/smaller devices the image overlaps the text. Here is the onShow code:

@Override
public void onShow(DialogInterface dialogInterface) {
    Button button = dialog.getButton(AlertDialog.BUTTON_POSITIVE);
    button.setCompoundDrawablesWithIntrinsicBounds(R.drawable.your_img, 0, 0, 0);
    Utils.centerImageAndTextInButton(button);
}

Here is an utility function to center a left image and text inside a Button:

public static void centerImageAndTextInButton(Button button) {
    Rect textBounds = new Rect();
    //Get text bounds
    CharSequence text = button.getText();
    if (text != null && text.length() > 0) {
        TextPaint textPaint = button.getPaint();
        textPaint.getTextBounds(text.toString(), 0, text.length(), textBounds);
    }
    //Set left drawable bounds
    Drawable leftDrawable = button.getCompoundDrawables()[0];
    if (leftDrawable != null) {
        Rect leftBounds = leftDrawable.copyBounds();
        int width = button.getWidth() - (button.getPaddingLeft() + button.getPaddingRight());
        int leftOffset = (width - (textBounds.width() + leftBounds.width()) - button.getCompoundDrawablePadding()) / 2 - button.getCompoundDrawablePadding();
        leftBounds.offset(leftOffset, 0);
        leftDrawable.setBounds(leftBounds);
    }
}

This last function uses the width of the Button to make the calculation, so you must check that you are calling this in the right place. That is, the width should be other than zero. In this case, calling it from onShow is the right place :).