Question

有人做过这个效果吗？就是android中画曲线，然后在上面加一条虚线。

若以下回答无法解决问题，邀请你更新回答

Answer 1

用canvas.drawPath解决了问题
好用：
Paint paint = new Paint();
paint.setStyle(Paint.Style.STROKE);
paint.setColor(Color.DKGRAY);
Path path = new Path();
path.moveTo(0, 10);
path.lineTo(480,10);
PathEffect effects = new DashPathEffect(new float[]{5,5,5,5},1);
paint.setPathEffect(effects);
canvas.drawPath(path, paint);

这段代码已经不生效了：
Paint p = new Paint();
p.setStyle(Paint.Style.FILL);
p.setColor(Color.BLUE);
p.setStrokeWidth(1);
PathEffect effects = new DashPathEffect(new float[] { 1, 2, 4, 8}, 1);
p.setPathEffect(effects);
p.setAntiAlias(true);
canvas.drawLine(10, 20, 60, 100, p);