1.Line cap styles. 线角样式
typedef CF_ENUM(int32_t, CGLineCap) {
kCGLineCapButt,
kCGLineCapRound,//圆角
kCGLineCapSquare //直角
};
设置某一个角可以有圆角(枚举值)
byRoundingCorners:(UIRectCorner)corners
typedef NS_OPTIONS(NSUInteger, UIRectCorner) {
UIRectCornerTopLeft = 1 << 0,
UIRectCornerTopRight = 1 << 1,
UIRectCornerBottomLeft = 1 << 2,
UIRectCornerBottomRight = 1 << 3,
UIRectCornerAllCorners = ~0UL
};
3.根据一个矩形画曲线(沿着rect 画)
+ (UIBezierPath*)bezierPathWithRect:(CGRect)rect
4.根据矩形框的内切圆画曲线
+ (UIBezierPath*)bezierPathWithOvalInRect:(CGRect)rect
5.根据矩形画带圆角的曲线
参数:
cornerRadius 每个角角度
+ (UIBezierPath*)bezierPathWithRoundedRect:(CGRect)rect cornerRadius:(CGFloat)cornerRadius
6.在矩形中可以针对四角中的某个角加圆角
参数:
corners rect 枚举值,可以选择某个角
cornerRadii 圆角的大小
+ (UIBezierPath*)bezierPathWithRoundedRect:(CGRect)rect byRoundingCorners:(UIRectCorner)corners cornerRadii:(CGSize)cornerRadii
7.以某个中心点画弧线
参数:
center:弧线中心点的坐标
radius:弧线所在圆的半径
startAngle:弧线开始的角度值
endAngle:弧线结束的角度值
clockwise:是否顺时针画弧线
+ (UIBezierPath*)bezierPathWithArcCenter:(CGPoint)center radius:(CGFloat)radius startAngle:(CGFloat)startAngle endAngle:(CGFloat)endAngle clockwise:(BOOL)clockwise;
8.画二元曲线,和moveToPoint配合使用
参数:
endPoint:曲线的终点
controlPoint:画曲线的基准点
- (void)addQuadCurveToPoint:(CGPoint)endPoint controlPoint:(CGPoint)controlPoint
9.以三个点画一段曲线,和moveToPoint配合使用
参数:
endPoint:曲线的终点
controlPoint1:画曲线的第一个基准点
controlPoint2:画曲线的第二个基准点
- (void)addCurveToPoint:(CGPoint)endPoint controlPoint1:(CGPoint)controlPoint1 controlPoint2:(CGPoint)controlPoint2
10.闭合路径
- (void)closePath;
11.移除所有的点
- (void)removeAllPoints;
12.追加路径
- (void)appendPath:(UIBezierPath *)bezierPath;
追加路径
13. Modified paths
- (UIBezierPath *)bezierPathByReversingPath NS_AVAILABLE_IOS(6_0);
14.转换路径
- (void)applyTransform:(CGAffineTransform)transform;
15.路径信息
@property(readonly,getter=isEmpty) BOOL empty;
@property(nonatomic,readonly) CGRect bounds;
@property(nonatomic,readonly) CGPoint currentPoint;
- (BOOL)containsPoint:(CGPoint)point; //路径中是否包含这个点
16. Drawing properties
@property(nonatomic) CGFloat lineWidth; //线宽
@property(nonatomic) CGLineCap lineCapStyle;
@property(nonatomic) CGLineJoin lineJoinStyle; //曲线交叉点的类型
17.两条线交汇处内角和外角之间的最大距离,需要交叉点类型为kCGLineJoinMiter是生效,最大限制为10 Used when lineJoinStyle is kCGLineJoinMiter
@property(nonatomic) CGFloat miterLimit;
@property(nonatomic) CGFloat flatness;
// 默认是NO。当YES时,单双数填充规则用于绘画,剪裁,点击测试。
@property(nonatomic) BOOL usesEvenOddFillRule; // Default is NO. When YES, the even-odd fill rule is used for drawing, clipping, and hit testing.
- (void)setLineDash:(nullable const CGFloat *)pattern count:(NSInteger)count phase:(CGFloat)phase;
- (void)getLineDash:(nullable CGFloat *)pattern count:(nullable NSInteger *)count phase:(nullable CGFloat *)phase;
18.对当前图形上下文路径操作
- (void)fill;
- (void)stroke;
19. 这些方法不影响混合模式或当前图形上下文的α
blendMode 填充显示样式 (枚举值)
alpha 透明度
- (void)fillWithBlendMode:(CGBlendMode)blendMode alpha:(CGFloat)alpha;
blendMode 线的显示样式 (枚举值)
alpha 透明度
- (void)strokeWithBlendMode:(CGBlendMode)blendMode alpha:(CGFloat)alpha;
20.使用当前path剪切当前的图形,之后在超出path区域的地方绘图将显示不出来
- (void)addClip;