//OC版
-(void)awakeFromNib{
[superawakeFromNib];
self.transform=CGAffineTransformMakeScale(0.5,0.5);
self.layer.anchorPoint=CGPointMake(0,0.5);
}
//Swift版
classSwitchButton:UISwitch{
overridefuncawakeFromNib() {
transform=CGAffineTransformMakeScale(0.5,0.5)
layer.anchorPoint=CGPoint(x:0, y:0.3)
}}
