鐨勭敾绾匡紝鍙互鏇夸唬CAShapeLayer浼樺寲-ios,iphone,objective-c,浼樺寲optimization,cashapelayer-CodeGo.net
鐨勭敾绾匡紝鍙互鏇夸唬CAShapeLayer浼樺寲
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+ (CAShapeLayer *) drawLineOnView:(UIView *) view BetweenPoint1:(CGPoint) point1 Point2:(CGPoint) point2 lineWidth:(CGFloat)lineWidth lineColor:(UIColor *) color Animated:(BOOL) animed
CAShapeLayer *lineShape = [CAShapeLayer layer];
CGMutablePathRef linePath =
linePath = CGPathCreateMutable();
//lineShape.opacity = 0.6;
lineShape.lineWidth = lineW
lineShape.lineCap = kCALineCapR
if(color==nil) color = [UIColor orangeColor]; //Default value
lineShape.shadowColor = [color CGColor];
lineShape.shadowOpacity = 1.0;
lineShape.shadowRadius = 5.0;
lineShape.strokeColor = [color CGColor];
CGPathMoveToPoint(linePath, NULL, point1.x, point1.y);
CGPathAddLineToPoint(linePath, NULL, point2.x, point2.y);
if(animed)
CABasicAnimation *pathAnimation = [CABasicAnimation animationWithKeyPath:@"strokeEnd"];
pathAnimation.duration = 1.0;
pathAnimation.fromValue = [NSNumber numberWithFloat:0.0f];
pathAnimation.toValue = [NSNumber numberWithFloat:1.0f];
[lineShape addAnimation:pathAnimation forKey:@"strokeEndAnimation"];
lineShape.path = lineP
CGPathRelease(linePath);
[view.layer addSublayer:lineShape];
return lineS
閮ㄥ垎瑙ｅ喅锛堜紭鍖栨案杩滀笉浼氱粨鏉燂級
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+ (CAShapeLayer *) createNewShapeLayerForDrawingLinesOnView:(UIView *) view lineWidth:(CGFloat)lineWidth lineColor:(UIColor *) color
CAShapeLayer *lineShape = [CAShapeLayer layer];
//lineShape.opacity = 0.6;
lineShape.lineWidth = lineW
lineShape.lineCap = kCALineCapR
if(color==nil) color = [UIColor orangeColor]; //Default value
lineShape.shadowColor = [color CGColor];
lineShape.shadowOpacity = 1.0;
lineShape.shadowRadius = 5.0;
lineShape.strokeColor = [color CGColor];
[view.layer addSublayer:lineShape];
return lineS
+ (void) addNewLineToShapeLayer:(CAShapeLayer *) shapeLayer BetweenPoint1:(CGPoint) point1 Point2:(CGPoint) point2
CGMutablePathRef combinedPath = CGPathCreateMutableCopy(shapeLayer.path);
CGMutablePathRef linePath = CGPathCreateMutable();
CGPathMoveToPoint(linePath, NULL, point1.x, point1.y);
CGPathAddLineToPoint(linePath, NULL, point2.x, point2.y);
//No paths drawn before
if(combinedPath == NULL)
combinedPath = lineP
CGPathAddPath(combinedPath, NULL, linePath);
shapeLayer.path = combinedP
CGPathRelease(linePath);
鏈枃鍦板潃 锛欳odeGo.net/9563382/
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CGMutablePathRef combinedPath = CGPathCreateMutableCopy(path.CGPath);
CGPathAddPath(combinedPath, NULL, [self makeNewPathFrom:...].CGPath);
myLayer.path = combinedP
鏇村揩锛屼綘鍙互鐢荤嚎鐨勫悕鍗曪紝鐩存帴鍒扮殑CALayer鐨勫浘褰笂涓嬫枃銆傝繖涓緥瀛愪腑鐨勮鍥剧殑drawRect:鏂规硶鏄湭缁忔祴璇曪紝浣嗗簲璇ョ粰浣犱竴涓兂娉曪細
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetLineWidth(context, lineWidth);
CGContextSetRGBStrokeColor(context, 1.0, 0.0, 0.0, 1.0); //red
for(MyLine *line in lines)
CGContextMoveToPoint(context, point1.x, point1.y);
CGContextAddLineToPoint(context, point2.x, point2.y);
濡傛灉鎮ㄩ渶瑕佽繘涓姝ョ殑浼樺寲 CodeGo.net锛屼綘搴旇鑰冭檻鐨凮penGL銆
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鏈枃鏍囬 锛氱殑鐢荤嚎锛屽彲浠ユ浛浠AShapeLayer浼樺寲
鏈枃鍦板潃 锛欳odeGo.net/9563382/
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