How to remove the value label above each bar in bar chart for ios-charts

问题

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?

回答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)

回答2:

You can disable the labels by adding the following line;

lineData.setDrawValues(false)

回答3:

You can use drawValuesEnabled as below :

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

回答4:

In swift3 following line can do the job:

chartDataSet.valueTextColor = UIColor.clear

回答5:

This does the trick for Swift 4

yourChartDataSet.drawValuesEnabled = false

回答6:

Set this flag to True or False

_chart.drawValueAboveBarEnabled = YES;

来源：https://stackoverflow.com/questions/36193312/how-to-remove-the-value-label-above-each-bar-in-bar-chart-for-ios-charts

标签

ios

swift

ios-charts