Question

下面的代码显示警报对话框中的6颗星，我想要只显示3颗星，请给我一些提示。

public void ShowDialog()
    {
        final AlertDialog.Builder popDialog = new AlertDialog.Builder(this);
        final RatingBar rb = new RatingBar(this);
        popDialog.setIcon(android.R.drawable.btn_star_big_on);
        rb.setRating(0);
        rb.setNumStars(3);      
        popDialog.setTitle("Vote!! ");
        popDialog.setView(rb);
        // Button OK
        popDialog.setPositiveButton(android.R.string.ok,
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {

                    dialog.dismiss();
                }

            });
        popDialog.create();
        popDialog.show();


    }

Answer 1

final AlertDialog.Builder popDialog = new AlertDialog.Builder(
        getActivity());
final RatingBar rb = new RatingBar(getActivity());
popDialog.setIcon(android.R.drawable.btn_star_big_on);
rb.setRating(0);
rb.setNumStars(3);

popDialog.setTitle("Vote!! ");
popDialog.setView(rb);
// Button OK
popDialog.setPositiveButton(android.R.string.ok,
        new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {

                dialog.dismiss();
            }

        });

popDialog.show();

// This is the trick
rb.getLayoutParams().width = ViewGroup.LayoutParams.WRAP_CONTENT;

Answer 2

尝试设置RatingBar的布局，同时尝试rb.setMax()获取最大星星。

RatingBar rb = new RatingBar(context, null, android.R.attr.ratingBarStyleSmall);
  rb.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
  rb.setIsIndicator(true);
  rb.setNumStars(3);
  rb.setMax(3);

在alertdialog android中显示3颗星

2 个答案: