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iOS之UITextField输入错误的震动动画

时间:2017-2-10 12:28:44  作者:棋牌资源网  来源:棋牌资源网  查看:7569  评论:0
内容摘要://左右震动效果- (void)shake:(UIView *)view {CGRect frame = view.frame;CAKeyframeAnimation *shakeAnimation = [CAKeyframeAnimation animationWithKeyP...
//左右震动效果
- (void)shake:(UIView *)view {
CGRect frame = view.frame;
CAKeyframeAnimation *shakeAnimation = [CAKeyframeAnimation animationWithKeyPath:@"position"];

CGMutablePathRef shakePath = CGPathCreateMutable();
CGPathMoveToPoint(shakePath, NULL, frame.origin.x+frame.size.width/2, frame.origin.y+frame.size.height/2);
int index;
for (index = 3; index >=0; --index) {
CGPathAddLineToPoint(shakePath, NULL, frame.origin.x+frame.size.width/2 - frame.size.width * 0.02f * index, frame.origin.y+frame.size.height/2);
CGPathAddLineToPoint(shakePath, NULL, frame.origin.x+frame.size.width/2 + frame.size.width * 0.02f * index, frame.origin.y+frame.size.height/2);
}
CGPathCloseSubpath(shakePath);

shakeAnimation.path = shakePath;
shakeAnimation.duration = 0.5f;
shakeAnimation.removedOnCompletion = YES;

[view.layer addAnimation:shakeAnimation forKey:nil];
CFRelease(shakePath);
}
标签:iOS之UITextField输入错误的震动动画 

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