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_cartAnimView=[[UIImageView alloc] initWithFrame:CGRectMake(_propView.frame.size.height*0.025,_propView.frame.size.height* -0.025 , _propView.frame.size.height*0.2, _propView.frame.size.height*0.2)];
[self.view addSubview:_cartAnimView];
CABasicAnimation* rotationAnimation;
rotationAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
rotationAnimation.toValue = [NSNumber numberWithFloat: M_PI * 11.0 ];
rotationAnimation.duration = 1.0;
rotationAnimation.cumulative = YES;
rotationAnimation.repeatCount = 0;
//这个是让旋转动画慢于缩放动画执行
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[_cartAnimView.layer addAnimation:rotationAnimation forKey:@"rotationAnimation"];
});
[UIView animateWithDuration:1.0 animations:^{
_cartAnimView.frame=CGRectMake(self.screenWidth-55, -(self.screenHeight - CGRectGetHeight(self.view.frame) - 40), 0, 0);
} completion:^(BOOL finished) {
//动画完成后做的事
}];
ps:淘宝的加入购物车动画相对我自己实现的更畅,分析发现,淘宝在点击加入购物车动作后,并没有先跟服务器请求加入购物车,而是动画后,返回到商品详情dmd消失后,后台才请求吧。这样动画就不用等待了。但这样的逻辑合理吗?我不清楚为什么这样做,有懂的请多指教!
#### 核心代码
#pragma mark - 加入购物车动画
-(void)addAnimations
{
_cartAnimView=[[UIImageView alloc] initWithFrame:CGRectMake(_propView.frame.size.height*0.025,_propView.frame.size.height* -0.025 , _propView.frame.size.height*0.2, _propView.frame.size.height*0.2)];
[self.view addSubview:_cartAnimView];
[UIView animateWithDuration:1.0 animations:^{
_cartAnimView.frame=CGRectMake(self.screenWidth-55, -(self.screenHeight - CGRectGetHeight(self.view.frame) - 40), 0, 0);
_cartAnimView.transform = CGAffineTransformRotate(_cartAnimView.transform, M_PI_2);
} completion:^(BOOL finished) {
//动画完成后做的事
}];
}
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原文地址:http://www.cnblogs.com/Camier-myNiuer/p/5759409.html