贝塞尔曲线UIBezierPath画波纹进度条

来源：互联网发布：windows10未识别网络编辑：程序博客网时间：2024/05/29 06:47

源码链接地址i点击打开链接

通过贝塞尔曲线画，波纹进度提示

核心代码：

CAShapeLayer *shapLayer = [CAShapeLayer layer];    self.shaplayer = shapLayer;    shapLayer.path = [self layerPath].CGPath;    [shapLayer setFillColor:[UIColor colorWithRed:86/255.0f green:202/255.0f blue:139/255.0f alpha:0.5].CGColor];    [shapLayer setStrokeColor:[UIColor colorWithRed:86/255.0f green:202/255.0f blue:139/255.0f alpha:0.5].CGColor];    [self.layer addSublayer:shapLayer];        self.shaplayer2 = [CAShapeLayer layer];    self.shaplayer2.path = [self layer2Path].CGPath;    [self.shaplayer2 setFillColor:[UIColor colorWithRed:86/255.0f green:202/255.0f blue:139/255.0f alpha:0.5].CGColor];    [self.shaplayer2 setStrokeColor:[UIColor colorWithRed:86/255.0f green:202/255.0f blue:139/255.0f alpha:0.5].CGColor];    [self.layer addSublayer:self.shaplayer2];

-(UIBezierPath *)layerPath{    UIBezierPath *path = [UIBezierPath bezierPath];    [path moveToPoint:CGPointMake(0, self.frame.size.height)];    CGFloat y = 0.0f;    for (int i = 0; i < self.frame.size.width; i++) {                y = 4*sin(i*M_PI/180 - self.translateX/M_PI)+ self.frame.size.height*self.translateY;                NSLog(@"%f",y);        if (y<-2) {            [self stopDisplayLink];            [path addLineToPoint:CGPointMake(i, 0)];            self.dataLabel.text = [NSString stringWithFormat:@"100%%"];        }else{            self.dataLabel.text = [NSString stringWithFormat:@"%.0f%%",(1-y/200.0)*100];            [path addLineToPoint:CGPointMake(i, y)];        }            }    [path addLineToPoint:CGPointMake(self.frame.size.width, self.frame.size.height)];    [path addLineToPoint:CGPointMake(0, self.frame.size.height)];    [path addLineToPoint:CGPointMake(0, self.frame.size.height)];    [path closePath];    return path;}

-(void)reLoadPath{    self.translateX += 0.1;    self.translateY -=0.001;    self.shaplayer.path = [self layerPath].CGPath;    self.shaplayer2.path = [self layer2Path].CGPath;}

具体请看源码。

阅读全文

0 0