如何为UIButton iOS创建一个脉动动画？
如何为UIButton iOS创建一个脉动动画？
提问于 2015-04-01 07:31:26
我正试图为UIButton创建一个脉动动画--到目前为止，这些都是我的代码，但仍然无法完成这个链接中所显示的精确动画。
我的代码
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.backgroundColor = [UIColor lightGrayColor];
[button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[button addTarget:self
action:@selector(method)
forControlEvents:UIControlEventTouchUpInside];
[button setTitle:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(80.0, 210.0, 160.0, 160.0);
CABasicAnimation *pulseAnimation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
pulseAnimation.duration = .5;
pulseAnimation.toValue = [NSNumber numberWithFloat:1.1];
pulseAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
pulseAnimation.autoreverses = YES;
pulseAnimation.repeatCount = FLT_MAX;
[button.layer addAnimation:pulseAnimation forKey:nil];
button.layer.cornerRadius=button.frame.size.width / 2;
;
button.layer.masksToBounds = YES;
[self.view addSubview:button];回答 2
Stack Overflow用户
回答已采纳
发布于 2015-04-01 07:52:18
尝尝这个。
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(0, 0, 100, 100);
button.center = self.view.center;
[button setTitle:@"Button" forState:UIControlStateNormal];
UIView *c = [[UIView alloc] initWithFrame:button.bounds];
c.backgroundColor = [UIColor blueColor];
c.layer.cornerRadius = 50;
[button addSubview:c];
[button sendSubviewToBack:c];
UIView *f = [[UIView alloc] initWithFrame:button.bounds];
f.backgroundColor = [[UIColor blueColor] colorWithAlphaComponent:0.3];
f.layer.cornerRadius = 50;
[button addSubview:f];
[button sendSubviewToBack:f];
CABasicAnimation *pulseAnimation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
pulseAnimation.duration = .5;
pulseAnimation.toValue = [NSNumber numberWithFloat:1.1];
pulseAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
pulseAnimation.autoreverses = YES;
pulseAnimation.repeatCount = MAXFLOAT;
[c.layer addAnimation:pulseAnimation forKey:@"a"];
[button.titleLabel.layer addAnimation:pulseAnimation forKey:@"a"];
CABasicAnimation *fade = [CABasicAnimation animationWithKeyPath:@"opacity"];
fade.toValue = @0;
CABasicAnimation *pulse = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
pulse.toValue = @2;
CAAnimationGroup *group = [CAAnimationGroup animation];
group.animations = @[fade,pulse];
group.duration = 1.0;
group.repeatCount = MAXFLOAT;
[f.layer addAnimation:group forKey:@"g"];
[self.view addSubview:button];Stack Overflow用户
发布于 2015-04-01 08:01:57
一个很好的控制，可以根据需要调整。https://github.com/zackhsuan/ZKPulseView
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/29385195
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