如何删除ios图表条形图中每个条形图上方的值标签

Question

Each bar has a value above it, but whenever I get too many data entries graphed, these values are spilling over into each other and making themselves unreadable. The only way to edit these that I could find was setting them to either above or below each bar. However I would like to hide them completely. How do I do this in swift?

Answer 1

There is a method called setDrawValues which allows you to enable or disable the label text. Here an example in Swift with LineChart:

xValues = ["1","2"]
yValues = [54.0, 42.0]

var dataEntries: [ChartDataEntry] = []

for i in 0..<xValues.count {
   let dataEntry = ChartDataEntry(value: yvalues[i], xIndex: i)
   dataEntries.append(dataEntry)
}

let lineChartDataSet = LineChartDataSet(yVals: dataEntries, label: "YourData")
let lineChartData = LineChartData(xVals: xValues, dataSet: lineChartDataSet)

// this disables the display of the labels - be sure to apply it to your LineChartData object
lineChartData.setDrawValues(false)

Edit: For sure in your case you can use this method also for your BarChartData object.

Documentation can be found here (ios-charts is based on MPAndroidChart and therefore has more or less the same functionality): https://jitpack.io/com/github/PhilJay/MPAndroidChart/v2.2.3/javadoc/com/github/mikephil/charting/data/ChartData.html#setDrawValues(boolean)

Answer 2

您可以通过添加以下行来禁用标签;

lineData.setDrawValues(false)

Answer 3

You can use drawValuesEnabled as below :

let chartDataSet = BarChartDataSet(yVals: dataEntries, label: nil)
chartDataSet.drawValuesEnabled = false

Answer 4

在swift3中，以下行可以完成这项工作：

chartDataSet.valueTextColor = UIColor.clear

Answer 5

这对Swift 4来说很有用

yourChartDataSet.drawValuesEnabled = false

Answer 6

将此标志设置为True或False

_chart.drawValueAboveBarEnabled = YES;