如何使饼形图标签在Android中不重叠？

Question

我制作的饼图如下图。

但是我希望在饼图周围显示标签（在饼图内部），并且当数据为零时，标签将不会显示，因此不会重叠。有人可以教我怎么做吗？预先谢谢你：）

这是我用Java编写的代码

import com.github.mikephil.charting.data.PieEntry;
import com.github.mikephil.charting.utils.ColorTemplate;

public class MyRecyclerViewPer extends RecyclerView.Adapter<MyRecyclerViewPer.MyViewHolder> {
    private Context context;
   ArrayList <Integer> tlist;
    TextView swipe;
    String[] disorder = {"a", "b", "c","d","e"};
    int[] one = new int[5];
    int[] two = new int[5];
    int[] three = new int[5];
    int[] four = new int[5];
    int[] five = new int[5];


    private AdapterView.OnItemClickListener listener;

    public MyRecyclerViewPer(Context c, ArrayList <Integer> t, int[] o, int[] tw, int[] th, int[] fo,int[] fi){
        context=c;
        tlist=t;
        one=o;
        two=tw;
three=th;
four=fo;
five=fi;
    }

    class MyViewHolder extends ViewHolder{
        TextView tname,sc,o,t,th,fo,fi;
        RelativeLayout parentLayout;
        PieChart pieChart;
        PieData pieData;
        PieDataSet pieDataSet;
        ArrayList pieEntries;
        ArrayList PieEntryLabels;

        public MyViewHolder(View view){
            super(view);
            sc=itemView.findViewById(R.id.score);
            tname=itemView.findViewById(R.id.title);
            o=itemView.findViewById(R.id.one);
           t=itemView.findViewById(R.id.two);
            th=itemView.findViewById(R.id.three);
            fo=itemView.findViewById(R.id.four);
            fi=itemView.findViewById(R.id.five);
            parentLayout = itemView.findViewById(R.id.parent_layout);
            swipe = itemView.findViewById(R.id.swipe);
            swipe.setText("<<< Swipe left or right to refresh >>>");

            pieChart = itemView.findViewById(R.id.pieChart);

            pieEntries = new ArrayList<>();

          pieDataSet = new PieDataSet(pieEntries, "");
            pieData = new PieData(pieDataSet);
            pieDataSet.setColors(ColorTemplate.JOYFUL_COLORS);
            pieDataSet.setValueTextColor(Color.WHITE);
            pieDataSet.setValueTextSize(10f);
            pieDataSet.setSliceSpace(5f);
            pieDataSet.setValueLinePart1OffsetPercentage(90.f);
            pieDataSet.setValueLinePart1Length(.10f);
            pieDataSet.setValueLinePart2Length(.50f);


        }




    }

    @NonNull
    @Override
    public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        return new MyViewHolder(LayoutInflater.from(context).inflate(R.layout.chart,parent,false));
    }

    @Override
    public void onBindViewHolder(@NonNull final MyViewHolder holder, final int position) {
        holder.tname.setText(disorder[position]);
        holder.sc.setText(String.valueOf(tlist.get(position)));
        holder.o.setText(String.valueOf(one[position]));
        holder.t.setText(String.valueOf(two[position]));
        holder.th.setText(String.valueOf(three[position]));
        holder.fo.setText(String.valueOf(four[position]));
        holder.fi.setText(String.valueOf(five[position]));

        holder.pieEntries = new ArrayList<>();


    holder.pieEntries.add(new PieEntry(one[position], "Normal"));


            holder.pieEntries.add(new PieEntry(two[position], "Mild"));


            holder.pieEntries.add(new PieEntry(three[position], "Moderate"));


            holder.pieEntries.add(new PieEntry(four[position], "Severe"));

            holder.pieEntries.add(new PieEntry(five[position], "Very severe"));


        holder.pieDataSet = new PieDataSet(holder.pieEntries, "");
        holder.pieData = new PieData(holder.pieDataSet);
        holder.pieChart.setData(holder.pieData);
        holder.pieDataSet.setColors(ColorTemplate.JOYFUL_COLORS);
        holder.pieDataSet.setSliceSpace(2f);
        holder.pieDataSet.setValueTextColor(Color.WHITE);
        holder.pieDataSet.setValueTextSize(10f);
        holder.pieDataSet.setSliceSpace(5f);


    }

    @Override
    public int getItemCount() {
        return tlist.size();
    }



}