Check out example codes for "How to draw Bezier Curve in Android". It will help you in understanding the concepts better.

Code Example 1

public class DrawView extends View {

    Paint paint;
    Path path;

    public DrawView(Context context) {
        super(context);
        init();
    }

    public DrawView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public DrawView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }

    private void init(){
        paint = new Paint();

        paint.setStyle(Paint.Style.STROKE);

    }

    @Override
    protected void onDraw(Canvas canvas) {
        // TODO Auto-generated method stub
        super.onDraw(canvas);
        path = new Path();
        paint.setColor(Color.RED);
        paint.setStrokeWidth(3);
        path.moveTo(34, 259);
        path.cubicTo(68, 151, 286, 350, 336, 252);
        canvas.drawPath(path, paint);

    }

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