单选弹窗

layoutContainerPeople.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        //关闭键盘
        InputMethodUtil.closeIfNeeded(ObjectiveEvaluateActivity.this);
        final String[] items = {"0分", "1分", "2分", "3分", "4分", "5分"};
        AlertDialog.Builder alertBuilder = new AlertDialog.Builder(mContext);
        alertBuilder.setTitle("评分");
        alertBuilder.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                alertDialog2.dismiss();
                tvIsSelectPeople.setText(items[i]);
            }
        });
        alertDialog2 = alertBuilder.create();
        alertDialog2.show();
    }
});

原文：https://www.cnblogs.com/sunjian43792901/p/12001532.html