在自定义的方法获取点击的cell的行号
用到的方法:
- (nullable NSIndexPath *)indexPathForCell:(UITableViewCell *)cell; // returns nil if cell is not visible
- (nullable NSArray<NSIndexPath *> *)indexPathsForRowsInRect:(CGRect)rect; // returns nil if rect not valid
- (nullable __kindof UITableViewCell *)cellForRowAtIndexPath:(NSIndexPath *)indexPath;
@property (nonatomic, readonly, nullable) NSIndexPath *indexPathForSelectedRow; // returns nil or index path representing section and row of selection.
@property (nonatomic, readonly, nullable) NSArray<NSIndexPath *> *indexPathsForSelectedRows NS_AVAILABLE_IOS(5_0); // returns nil or a set of index paths representing the sections and rows of the selection.
// Selects and deselects rows. These methods will not call the delegate methods (-tableView:willSelectRowAtIndexPath: or tableView:didSelectRowAtIndexPath:), nor will it send out a notification.
- (void)selectRowAtIndexPath:(nullable NSIndexPath *)indexPath animated:(BOOL)animated scrollPosition:(UITableViewScrollPosition)scrollPosition;
- (void)deselectRowAtIndexPath:(NSIndexPath *)indexPath animated:(BOOL)animated;
结合通知观察者 把cell的信息发送到控制器, 在控制器的方法中获取具体点击的某个cell的位置
-
在cell中 点击按钮的方法中:
- (void)delectAction{ [[NSNotificationCenter defaultCenter] postNotificationName:@"deleteAction" object:self];} 在控制器的viewDidLoad()添加观察者
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(deleteAction:) name:@"deleteAction" object:nil];
- 实现具体的方法
- (void)deleteAction:(NSNotification *)note{
StoreShopsListCell *cell = note.object;
NSIndexPath *indexPath = [self.tableView indexPathForCell:cell];
NSLog(@"我只是调试用的~哈哈哈😄---%zd",indexPath.row);
if (self.shopingCarArr.count >0) {
[self.shopingCarArr removeObjectAtIndex:indexPath.row];
}
}
