使用 mapchart 在条形图中显示 retrofit 响应，但图表未显示任何数据，而在日志中 API 响应是完美的

Question

这是我的 api 响应，这就是我将数据放入图表的方式

 call.enqueue(new Callback<List<AqiModelclass>>() {
            @Override
            public void onResponse(Call<List<AqiModelclass>> call, Response<List<AqiModelclass>> response) {
                if (response.isSuccessful() && response.body() != null) {
                    List<BarEntry> barEntries = new ArrayList<>();
                    for (AqiModelclass aqiModelclass : response.body()) {


                        List<Float> yData = Collections.singletonList(aqiModelclass.getAqi());
                        for (int i = 0; i < yData.size(); i++) {
                            barEntries.add(new BarEntry((((yData.get(i)))),i));
                        }


                        List<String> xxAxis = Collections.singletonList(aqiModelclass.getDt());
                        for (int i = 0; i < xxAxis.size(); i++) {
                            xxAxis.get(i);
                        }

                        XAxis xAxis = barChart.getXAxis();
                        xAxis.setValueFormatter(new IndexAxisValueFormatter(xxAxis));
                        xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);
                        xAxis.setLabelCount(xxAxis.size(),false);
                        xAxis.setGranularity(1);
                        xAxis.setGranularityEnabled(true);
                        xAxis.setLabelCount(xxAxis.size(),false);



                        Description description = new Description();
                        description.setText("Air Quality Index");
                        description.setTextSize(10f);
                        barChart.setDescription(description);





                        BarDataSet dataSet= new BarDataSet(barEntries,"");
                        BarData data = new BarData(dataSet);
                        barChart.setData(data);
                        data.setBarWidth(0.2f);
                        data.setValueTextSize(19f);

                        //bar custamization

                        barChart.animateY(1000);
                        barChart.setDrawGridBackground(false);
//                        barChart.setBackgroundColor(Color.WHITE);

                        dataSet.setColor(R.color.purple_200);


                    }
                }
            }

            @Override
            public void onFailure(Call<List<AqiModelclass>> call, Throwable t) {

            }
        });