Question

我正在使用来自github的graphview库，简称为Graphview。

我将日期作为x轴，将价格作为y轴。我从api获取数据，但是当我将人工舍入设置为false时，y轴会发疯，并为许多值添加了方式：Picture of it happening.

现在，如果我打开人工舍入，则y值是固定的，但日期却显示为奇怪：Picture of that.

当我旋转设备时，没有问题，我不知道出了什么问题，请帮忙。

代码：

     @Override
     public void onLoadFinished(Loader<ArrayList<GraphObject>> loader, 
     ArrayList<GraphObject> graphObjects) {

    if (graphObjects != null && !graphObjects.isEmpty()) {
        ArrayList<GraphObject> objects = new ArrayList<>(graphObjects);
        List<DataPoint> list = getDataPoint(graphObjects);
        LineGraphSeries<DataPoint> series = new LineGraphSeries<> 
        (list.toArray(new DataPoint[1]));
        Log.e("Message", objects.get(0).getclose());
        graphView.addSeries(series);

        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("LLLyy");
        graphView.getGridLabelRenderer().setLabelFormatter(new 
        DateAsXAxisLabelFormatter(this,simpleDateFormat));
        graphView.getGridLabelRenderer().setNumHorizontalLabels(3);

        graphView.getViewport().setMinX(list.get(0).getX());
        graphView.getViewport().setMaxX(list.get(list.size()-1).getX());
        graphView.getViewport().setXAxisBoundsManual(true);
        graphView.getGridLabelRenderer().setHumanRounding(false);
    }

}

     private List<DataPoint> getDataPoint(ArrayList<GraphObject> graphObjects) {
    List<DataPoint> dataPoints = new ArrayList<>();
    for (GraphObject object : graphObjects) {
        String close_string = object.getclose();
        String string_time = object.getMtime();
        long time = Long.parseLong(string_time);
        time = time * 1000;
        Double close = Double.parseDouble(close_string);
        Date dateObject = new Date(time);
        dataPoints.add(new DataPoint(dateObject, close));
    }
    return dataPoints;
}

Answer 1

DataPoint[] dataPoint = new DataPoint[total_count]; LineGraphSeries<DataPoint> series = new LineGraphSeries<>(dataPoint);

设置这些属性

graph.setDrawDataPoints（true）
graph.setMaxX（date2.getTime（））
graph.setXAxisBoundsManual（false）
graph.addSeries（series）;

寓言

`graph.getGridLabelRenderer().setLabelFormatter(new DefaultLabelFormatter() {
               @Override
               public String formatLabel(double value, boolean isValueX) {
                   if (isValueX) {
                       // show normal x values
                       Date date1 = IRoidAppHelper.parseTime(Helper.parseTime(productPriceData.getdate(), "yyyy-MM-dd'T'HH:mm:ssZ", "dd-MM-yyyy"), "dd-MM-yyyy");
                       String dateString =Helper.parseTime(date1.getTime(), "dd/MM");
                       return dateString;
                   } else {
                       // show currency for y values
                       return super.formatLabel(value, isValueX);
                   }
               }
           });`

Graphview库在将人类舍入设置为false时无法正确显示y轴？

1 个答案: