java - Android AlertDialog 如何阻止第二次点击确定按钮？

Question

例子:

System.out.println("in!");
AlertDialog.Builder dialog = new AlertDialog.Builder(this);
    dialog.setMessage("test!!!");
    dialog.setPositiveButton(R.string.dialog_ok, 
        new OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                System.out.println("Only one click!");
            }
    });
    dialog.show();

输出:
在!
在!
只需点击一下!
只需点击一下!
只需点击一下!
只需点击一下!

Answer 1

获取按钮(positive)并设置enabled为false。

System.out.println("in!");
AlertDialog.Builder dialog = new AlertDialog.Builder(this);
dialog.setMessage("test!!!");
dialog.setPositiveButton(R.string.dialog_ok, 
    new OnClickListener() {
        public void onClick(DialogInterface dialog, int which) {
            // disable on 1st click;
            final AlertDialog alertDialog = (AlertDialog)dialog;
            alertDialog.getButton(DialogInterface.BUTTON_POSITIVE).setEnabled(false);
            System.out.println("Only one click!");
        }
});
dialog.show();