Charts

The library MPAndroidChart was used to display line charts. For that you’ll need to import the alias chart

import chart

There are (for now) two kinds of charts

• LineChart: a line chart
• MultiLineChart : a chart allowing to display multiple lines

Each of these chart objects have a method show() allowing to show the chart. By long clicking it, you can save it into a PNG file

The library allows to consider x values as timestamps, so that when you’ll show the charts, it will display the time in the x absyss. You’ll have to specify the time-unit for that

Example:

import chart
import time
chart = new LineChart()
x = []
for (i in (1..10)) x.add(LocalDateTime.now().minusDays(10 - i) as Long)
r = new Random()
y = []
for (i in (1..10)) y.add(r.nextInt(100))
chart.setX(x)
  .setY(y)
  .setTitle("example chart")
  .setTimeUnitX(HOURS)
  .setShowGrid(false)
  .setDrawValues(true)
  .show()

Javadoc

You can consult the javadoc here

Screenshots

If you long press the chart, you can save it in PNG format.