(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath{
NSArray *array = tableView.indexPathsForVisibleRows;
NSIndexPath *firstIndexPath = array[0];
//设置anchorPoint
cell.layer.anchorPoint = CGPointMake(0, 0.5);
//为了防止cell视图移动，重新把cell放回原来的位置
cell.layer.position = CGPointMake(0, cell.layer.position.y);
//设置cell 按照z轴旋转90度，注意是弧度
if (firstIndexPath.row < indexPath.row) {
cell.layer.transform = CATransform3DMakeRotation(M_PI_2, 0, 0, 1.0);
}else{
cell.layer.transform = CATransform3DMakeRotation(- M_PI_2, 0, 0, 1.0);
}
cell.alpha = 0.0;
[UIView animateWithDuration:1 animations:^{
cell.layer.transform = CATransform3DIdentity;
cell.alpha = 1.0;
}];
}
- (void)collectionView:(UICollectionView *)collectionView willDisplayCell:(UICollectionViewCell *)cell forItemAtIndexPath:(NSIndexPath *)indexPath{
if (indexPath.row % 2 != 0) {
cell.transform = CGAffineTransformTranslate(cell.transform, kScreenWidth/2, 0);
}else{
cell.transform = CGAffineTransformTranslate(cell.transform, -kScreenWidth/2, 0);
}
cell.alpha = 0.0;
[UIView animateWithDuration:0.7 animations:^{
cell.transform = CGAffineTransformIdentity;
cell.alpha = 1.0;
} completion:^(BOOL finished) {
}];
}
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