android - 阻止 RatingBar 上的某些评级

Question

评分栏有一个 OnRatingBarChangeListener，它仅在评分已被用户更改时才起作用。我希望当用户点击评级栏进行 3 星评级时，RatingBar 提示不允许 3 星评级的 Toast。

Answer 1

这段代码会帮助你。

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_rating);
        RatingBar ratingBar;
        ratingBar = (RatingBar)findViewById(R.id.ratingBar);
        ratingBar.setOnRatingBarChangeListener(new OnRatingBarChangeListener() {

            @Override
            public void onRatingChanged(RatingBar ratingBar, float rating,boolean fromUser) {
                // TODO Auto-generated method stub
                if(rating == 3){
                    Toast.makeText(getApplicationContext(), "3 star rating is not allowed.", Toast.LENGTH_LONG).show();
                    ratingBar.setRating(0);
                }
            }
        });
    }