iOS---实现在屏幕上实时绘图的简单效果---CAShaperLayer和UIBezierPath的简单运用
首先,声明几个属性@property(nonatomic,strong)UIBezierPath*beizer;
@property(nonatomic,assign)CGPointstartPoint;
@property(nonatomic,assign)CGPointmovePoint;
@property(nonatomic,strong)CAShapeLayer*shapelaye