手势画圆演示动画

先懒加载

- (UIImageView *)handImageView {

if (!_handImageView) {

_handImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"组-6"]];

}

return _handImageView;

}

// 添加手势动画

self.handImageView.frame = CGRectMake(0, 0, 25, 20);

[self.view addSubview:self.handImageView];

CAKeyframeAnimation *anima = [CAKeyframeAnimation animationWithKeyPath:@"position"];

UIBezierPath *path = [UIBezierPath bezierPathWithOvalInRect:CGRectMake(SCREEN_WIDTH/2-70, SCREEN_HEIGHT/2-100, 140, 200)];

anima.path = path.CGPath;

anima.duration = 3.0f;

[self.handImageView.layer addAnimation:anima forKey:@"pathAnimation"];

[NSTimer scheduledTimerWithTimeInterval:3.0f target:self selector:@selector(delayMethod) userInfo:nil repeats:NO];

移除

- (void)delayMethod {

[self.handImageView removeFromSuperview];

[self.handView removeFromSuperview];

}