iOS图表Xcode中的LineGraph不显示所有值。为什么呢？

Question

我在我的swift xcodeproject中使用iOS Charts.framework（https://github.com/danielgindi/Charts）。 我的x值是作为字符串的日期，我的y值是0到1000之间的双倍数据。我的测试数据系列大小是392，它在20多个位置的值大于0.0，但其他日期值为0.0（如图所示）在下面的valueArray中）。 LineChart图仅显示5个>＆gt;的值。 0.0（如下图所示）。为什么？ 是否可以让LineChart显示所有值？或者我应该使用不同的图表库吗？

以下是在下面的数组中显示数据的线图的图像

valueArray = [0.0,0.0,0.0,25.0,0.0,2.0.0,0.0,0.0,0.0,0.0,0.0,0.0,05.0,0.0,0.0,0.0,0.0,50.0,0.0,0.0,0.0,0.0， 0.0,0.0,0.0,0.0,100.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.05,0.0,0.0.0,0.0,0.0,0.0,0.0,0.0 75.0,0.0,2.0.0,0.0,0.0,0.0,0.0,0.0,0.0,2.0.0,0.0,0.0,0.0,0.0.0,0.0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,50.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,175.0,0.0,0.0,0.0,0,0,0.0,0.0,0.0,0.0,0.0,0.0.0,0.0,0.0,0.0.0,0.0 0.0,0.0,50.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0.0,0.0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,50.0， 25.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0。 0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0 0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0.0,0.0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0.0,0.0,0.0,0.0 0.0,0.0,0.0,0.0,0.0,0.0,50.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0.0,0.0,0.0,0.0.0,0.0,0.0,0.0,0.0,0.0 50.0,25.0]

Answer 1

您需要在项目中添加以下代码，以解决显示标签问题。

       for (id<IChartDataSet> set in chartView.data.dataSets)
        {
            set.drawValuesEnabled = !set.isDrawValuesEnabled;
        }

        [chartView setNeedsDisplay];