CODEWITHSUNDEEP
javaandroidanimationpie-chart
K.Muthu
K.Muthu

Reputation: 1252

how to create animated pie chart in android?

How can i draw an animated pie-chart? I have drawn a chart and below is the code. I now need the chart to become animated when it gets loaded on to the screen. How can I achieve this and can anyone give me an idea of what I should look for or where?

Upvotes: 2

Views: 3922

Answers (2)

Nazar Ivanchuk
Nazar Ivanchuk

Reputation: 127

I made small example. maybe it be helpful for you. Animated pie char. The implementation was based on the SurfaceView. In SurfaceView I set thread. This thread calculate animation with 60 FPS.

 long ticksPS = 1000 / 60;
 long startTime;
 long sleepTime;
     while (running) {
       sleepTime = ticksPS-(System.currentTimeMillis() - startTime);
         try {
            if (sleepTime > 0)
               Thread.sleep(sleepTime);
         else
               Thread.sleep(10);
         } catch (Exception e) {}
 }

Rendering by using the method canvas.drawArc. Each frame increases sweepAngle.

          if((sweepAngle+startAngle) <= endAngle){
             sweepAngle+=2;
          }

For more details you can see on github.

Upvotes: 3

Darry Morales
Darry Morales

Reputation: 171

Maybe you can use the: ChartDroid library for Android.

Upvotes: 1

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