setNumStars() 在 android 中不工作

Question

我必须动态创建评级栏，其中要设置的星数是从服务器传递过来的。在这里，我获取要设置的星星数量的值并将其分配给 setNumStars() 方法。我的代码和生成的设计如下所示。这里我提前得到了n个stars.Thanks。 `

 if(FO.answerType[i].equals("S")){          
    TextView quest = new TextView(this);

     quest.setText(FO.question[i]);
     quest.setTextSize(textsize);
     quest.setTypeface(Typeface.DEFAULT_BOLD);                  
     quest.setTextColor(Color.BLACK);
     quest.setPadding(10, 6, 10, 6);
     quest.setGravity(Gravity.LEFT);
     lila.addView(quest);

     RatingBar rate = new RatingBar(this);                  
     rate.setNumStars(Integer.parseInt(FO.nos[i]));     

     lila.addView(rate); 


        }`

Answer 1

试试 .setRating(float value) ，你有一个相关的问题：Set value in RatingBar

您已经正确实现了 RatingBar 和 setRating 方法。

Answer 2

只需将RatingBar 放在布局中，其中有一个属性 wrap_content。魔法不存在。检查 returns:

Integer.parseInt(FO.nos[i])

突然有0个。 See it所以。

Answer 3

试试这个：

rate.setRating(Float.valueOf(FO.nos[i]));

动态搜索栏编辑：

public class MovieAdapter extends RecyclerView.Adapter<MovieAdapter.ViewHolder> {

    Context context;
    List<PostVO> movieList;

    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{
        LinearLayout ll;
        RatingBar rb;
        public ViewHolder(View itemView) {
            super(itemView);
            itemView.setOnClickListener(this);
            ll = (LinearLayout) itemView.findViewById(R.id.ll);
            rb = new RatingBar(context);
            rb.setNumStars(10);
            rb.setStepSize(1);
            ll.addView(rb);
        }

        @Override
        public void onClick(View v) {
            Snackbar.make(v, movieList.get(getAdapterPosition()).getTitle(), Snackbar.LENGTH_SHORT).show();
        }
    }

    public MovieAdapter(Context context,List<PostVO> movieList)
    {
        this.context = context;
        this.movieList = movieList;
    }

    @Override
    public MovieAdapter.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
        View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.row_movie_list, viewGroup, false);
        ViewHolder vh = new ViewHolder(v);
        return vh;
    }

    @Override
    public void onBindViewHolder(MovieAdapter.ViewHolder viewHolder, int i) {
        viewHolder.rb.setRating(Float.valueOf(movieList.get(i).getRating()));
    }

    @Override
    public int getItemCount() {
        if(movieList != null && !movieList.isEmpty())
        {
            return movieList.size();
        }
        else {
            return 0;
        }
    }
}

Answer 4

您需要为此输入以下代码-

RatingBar ratingBar = new RatingBar(this);
ratingBar.setRating(5);

Answer 5

将 Layout Params 保持为 WRAP_CONTENT。它会起到作用，比如

FrameLayout frameLayout = (FrameLayout) findViewById(R.id.container);
        RatingBar rate = new RatingBar(this);
        rate.setRating(2);
        rate.setNumStars(4);
        rate.setProgress(1);
        rate.setLayoutParams(new FrameLayout.LayoutParams(
                FrameLayout.LayoutParams.WRAP_CONTENT,
                FrameLayout.LayoutParams.WRAP_CONTENT));
        frameLayout.addView(rate);

输出：

setNumStars() 在 android 中不工作

setNumStars() not working in android

android

android-linearlayout

ratingbar