简单的UITableViewCell特效 飞入飞出之类的
看了一些最近放出来的控件, 有些是关于UITableViewCell显示的特效.
也有朋友问我咋做. 就写了个简单的介绍.
1. UITableVIew需要实现 - (void)tableView:(UITableView *)tableView willDisplayCell:(TestTableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
- (void)tableView:(UITableView *)tableView willDisplayCell:(TestTableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath {
[cell animationForIndexPath:indexPath];
}
2. UITableViewCell需要实现 - (void)animationForIndexPath:(NSIndexPath *)indexPath
- (void)animationForIndexPath:(NSIndexPath *)indexPath {
int row = indexPath.row;
float radians = (120 + row*30)%360;
radians = 20;
CALayer *layer = [[self.layer sublayers] objectAtIndex:0];
// Rotation Animation
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
animation.fromValue [email protected]_TO_RADIANS(radians);
animation.toValue = @DEGREES_TO_RADIANS(0);
// Opacity Animation;
CABasicAnimation *fadeAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];
fadeAnimation.fromValue = @0.1f;
fadeAnimation.toValue = @1.f;
// Translation Animation
CABasicAnimation *translationAnimation = [CABasicAnimation animationWithKeyPath:@"transform.translation.x"];
;
translationAnimation.fromValue = @(-300.f * ((indexPath.row%2 == 0) ? -1: 1));
translationAnimation.toValue = @0.f;
CAAnimationGroup *animationGroup = [CAAnimationGroup animation];
animationGroup.duration = 0.4f;
animationGroup.animations = @[animation,fadeAnimation,translationAnimation];
animationGroup.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
[layer addAnimation:animationGroup forKey:@"spinAnimation"];
}
3. 对应的宏
#define DEGREES_TO_RADIANS(d) (d * M_PI / 180)
时间： 2024-10-13 16:37:19