Draw vertical line in the middle of a line chart (indicator)

Question

I am using a chart library called MPAndroidChart and I am very pleased with it. However, I want to draw a thick vertical line (as a background, not as data) serving as an indicator in the the middle of the line graph. How can I do this?

Best regards.

Answer 1

You can use the LimitLine class to acheive this.

Basically, that class allows you to draw a customizeable line to a specified position on the y-axis in the chart and add a description to it.

After creating the line, you need to assign it to an XAxis or YAxis.

For more details, have a look at the documentation. You can find limitlines it on the bottom of the page.

Also, this example class shows how to use them: https://github.com/PhilJay/MPAndroidChart/blob/master/MPChartExample/src/com/xxmassdeveloper/mpchartexample/LineChartActivity1.java

UPDATE: Now LimitLines can be assigned to any axis!