如何畫波浪線的iOS設備上

. 使用CGContextRef iOS上。 WavyView.h#import <UIKit/UIKit.h>

@interface WavyView : UIView {

}

@end

WavyView.m#import "WavyView.h"

@implementation WavyView

- (id)initWithFrame:(CGRect)frame {

self = [super initWithFrame:frame];

return self;

}

- (void)drawRect:(CGRect)rect {

CGContextRef context = UIGraphicsGetCurrentContext();

CGContextSetLineWidth(context, 2.0);

CGContextSetStrokeColorWithColor(context, [UIColor blueColor].CGColor);

CGContextBeginPath(context);

CGContextMoveToPoint(context, 100, 100);

CGContextAddCurveToPoint(context,125,150,175,150,200,100);

CGContextAddCurveToPoint(context,225,50,275,75,300,200);

CGContextStrokePath(context);

}

- (void)dealloc {

[super dealloc];

}

@end