IMG_0867.PNG
需求：每一个section的第一个row 和最后一个row分别上下圆角 打到图示的效果
- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath {
NSInteger sectionCount = [tableView numberOfRowsInSection:indexPath.section] - 1;// section row 个数
CGRect bounds = CGRectInset(cell.bounds, 20, 0); // 显示的cell 点击区域
// 2.再盖一个 mask
CAShapeLayer *maskLayer = [[CAShapeLayer alloc] init];// 用于蒙板
// section 只有一个时。
if (indexPath.row == 0 && indexPath.row == sectionCount) {
[maskLayer setPath:[UIBezierPath bezierPathWithRoundedRect:bounds cornerRadius:12.0].CGPath];
// 第一个 row
} else if (indexPath.row == 0) {
[maskLayer setPath:[UIBezierPath bezierPathWithRoundedRect:bounds
byRoundingCorners:(UIRectCornerTopLeft|UIRectCornerTopRight)
cornerRadii:CGSizeMake(12.0, 20.0)].CGPath];
// 最后一个 row
} else if (indexPath.row == sectionCount) {
[maskLayer setPath:[UIBezierPath bezierPathWithRoundedRect:bounds
byRoundingCorners:(UIRectCornerBottomLeft|UIRectCornerBottomRight)
cornerRadii:CGSizeMake(12.0, 12.0)].CGPath];
// 中间 row
} else {
UIBezierPath *path = [UIBezierPath bezierPathWithRect:bounds];
[maskLayer setPath:path.CGPath];
}
// 2.mask
[cell setMaskView:[[UIView alloc] initWithFrame:cell.bounds]];
[cell.maskView.layer insertSublayer:maskLayer atIndex:0];
[cell.maskView.layer setMasksToBounds:YES];
[cell setClipsToBounds:YES];
}
