Android MPAndroidChart LineChart 图选索引或者端点

lineChart.setonChartValueSelectedListener(new onChartValueSelectedListener() {
                @Override
                public void onValueSelected(Entry entry, Highlight highlight) {
                    Log.i("Show",entry.toString());
                    ArrayList arrayList = lineChart.getStakeCircleEntries();
                    for (int i = 0; i < arrayList.size(); i++) {
                        StakeCircleEntry stakeCircleEntry = arrayList.get(i);
                        if (stakeCircleEntry.getX() == entry.getX() && stakeCircleEntry.getY() == entry.getY()){
                            mItem = i;
                    
                            return;
                               }
                    }
                }

                @Override
                public void onNothingSelected() {
                }
            });