Solution 1:

You can use MPAndroidChart.

It's native, free, easy to use, fast and reliable.

Core features, benefits:

  • LineChart, BarChart (vertical, horizontal, stacked, grouped), PieChart, ScatterChart, CandleStickChart (for financial data), RadarChart (spider web chart), BubbleChart
  • Combined Charts (e.g. lines and bars in one)
  • Scaling on both axes (with touch-gesture, axes separately or pinch-zoom)
  • Dragging / Panning (with touch-gesture)
  • Separate (dual) y-axes
  • Highlighting values (with customizeable popup-views)
  • Save chart to SD-Card (as image)
  • Predefined color templates
  • Legends (generated automatically, customizeable)
  • Customizeable Axes (both x- and y-axis)
  • Animations (build up animations, on both x- and y-axis)
  • Limit lines (providing additional information, maximums, ...)
  • Listeners for touch, gesture & selection callbacks
  • Fully customizeable (paints, typefaces, legends, colors, background, dashed lines, ...)
  • Realm.io mobile database support via MPAndroidChart-Realm library
  • Smooth rendering for up to 10.000 data points in Line- and BarChart
  • Lightweight (method count ~1.4K)
  • Available as .jar file (only 500kb in size)
  • Available as gradle dependency and via maven
  • Good documentation
  • Example Project (code for demo-application)
  • Google-PlayStore Demo Application
  • Widely used, great support on both GitHub and stackoverflow - mpandroidchart
  • Also available for iOS: Charts (API works the same way)
  • Also available for Xamarin: MPAndroidChart.Xamarin

Drawbacks:

  • No official support for dynamic & realtime data, limited performance in that area

Disclaimer: I am the developer of this library.

Solution 2:

See Android arsenal (category Graphics) for more libraries.

  • AChartEngine
  • AFreeChart
  • AndroidCharts
  • Androidplot
  • DroidDiagram
  • EazeGraph GraphView
  • HoloGraphLibrary
  • HzGrapher
  • MPAndroidChart
  • SciChart
  • WilliamChart
  • ChartProgressBar

Solution 3:

If you're looking for something more straight forward to implement (and it doesn't include pie/donut charts) then I recommend WilliamChart. Specially if motion takes an important role in your app design. In other hand if you want featured charts, then go for MPAndroidChart.

Solution 4:

AchartEngine

You can create a plethora of different chart types relatively quickly with loads of customizable options.