Changing font size into an AlertDialog

You can actually get access to the message's TextView pretty easily, and then change it's size. I tested with a bigger size, but you could use whatever size you want. The text will scroll nicely as it already does. The view's id is android.R.id.message

    AlertDialog dialog = new AlertDialog.Builder(this).setMessage("Hello world").show();    TextView textView = (TextView) dialog.findViewById(android.R.id.message);    textView.setTextSize(40);

This is probably a cleaner solution, though I'm not sure if there's a risk that the TextView could be null or not.

I am using the following code to change the title and message text for AlertDialog…

final int alertTitle = ctx.getResources().getIdentifier("alertTitle", "id", "android");setTitleFont((TextView) dlg.findViewById(alertTitle));setBodyFont((TextView) dlg.findViewById(android.R.id.message));

… making sure that I check for null in my setTitleFont and setBodyFont methods.

For Buttons:

  final AlertDialog ad = new AlertDialog.Builder(mainScreen).setPositiveButton("OK", null) .setNegativeButton("Cancel", null).create();ad.setOnShowListener(new DialogInterface.OnShowListener() {                                            @Override                                            public void onShow(DialogInterface dialog) {                                                int textSize = (int) Helper.getDimen(mainScreen, R.dimen.textSize12);                                                ad.getButton(Dialog.BUTTON_POSITIVE).setTextSize(textSize);                                                ad.getButton(Dialog.BUTTON_NEGATIVE).setTextSize(textSize);                                            }                                      });ad.show();