Question

如何实现竖屏把canvas旋转90度

Answer 1

这个要用到path. Paint paint = new Paint(); paint.srtColor(0X80FF000); Path path = new Path(); path.addCircle(10,10,5,Direction.CW); canvacs.drawTextOnPath("aling a path",path,0,0,paint);

Answer 2

用js获取屏幕高度的像素和屏幕宽度的像素，再给div一个样式宽是屏幕高度，高度是屏幕宽度