Android - Change the text of the positive button of an AlertDialog

I reuse an AlertDialog box in my android app.

I create a dialog in the onCreateDialog() method and in the onPrepareDialog() method, I try to change the text of the positiveButton using the following code.

alertDialog.setButton(DialogInterface.BUTTON_POSITIVE, this.getString(R.string.add), new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int id) {
          //Handler code
    }
}

The onclick listener is开发者_如何学运维 getting changed, but the button text is not changed.

Is it a bug in Android or am I doing something wrong?

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One solution is just to force the button to redraw. For example, a button to cancel a lengthy operation might change to 'OK' on complete, e.g.

Button button = progressDialog.getButton(ProgressDialog.BUTTON1);
button.setText("OK");
button.invalidate();

---

This works for me

@Override
protected Dialog onCreateDialog(int id) {
    switch (id) {

        case DIALOG_ID:
            return AlertDialog.Builder(this).setTitle(R.string.contact_groups_add)
    .setView(addView).setPositiveButton(R.string.ok,
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog,
                        int whichButton) {

                }
            }).setNegativeButton(R.string.cancel,
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog,
                        int whichButton) {
                }
            }).create();
    }
    return null;
}