IOS 之 UITableView 实现点击展开裂缝效果

原理是在点击单元格的时候给cell添加一个view蓝色的是新添加的视图

来看代码

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{NSInteger section = [indexPath section];NSInteger row = [indexPath row];NSString *key = [self.key objectAtIndex:section];NSArray *vales = [self.name objectForKey:key];UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:TableIdentifier];if ( tableView.tag == 1) {cell.textLabel.text = [vales objectAtIndex:row];}else{cell.textLabel.text = [filervale objectAtIndex:row];}UIView *mainView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.tabview.bounds.size.width, 55)];mainView.layer.backgroundColor = [UIColor colorWithRed:233/255.0 green:0/255.0 blue:0/255.0 alpha:1].CGColor;mainView.layer.borderColor = [UIColor colorWithRed:255/255.0 green:255/255.0 blue:0/255.0 alpha:1].CGColor;mainView.layer.borderWidth = 0.5;mainView.layer.masksToBounds = YES;[cell addSubview:mainView];return cell;
}

这里添加一个手势,就是点击cell时触发

-(void)addGestureRecognizerForView:(UITableViewCell*)cell action:(SEL)action
{UITapGestureRecognizer *gesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:action];[cell addGestureRecognizer:gesture];
}- (void)tableViewTouchInView:(UITapGestureRecognizer *)gesture
{UITableViewCell *cell = (UITableViewCell*)gesture.view;NSIndexPath *indexpath = [self.tabview indexPathForCell:cell];if ( self.selectRow == indexpath.row ) {self.selectRow = -1;}elseself.selectRow = indexpath.row;NSArray *array = [NSArray arrayWithObject:indexpath];[self.tabview reloadRowsAtIndexPaths:array withRowAnimation:UITableViewRowAnimationAutomatic];
}

-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{[self addGestureRecognizerForView:cell action:@selector(tableViewTouchInView:)];if ( self.selectRow == indexPath.row ) {self.ExpandView.frame = CGRectMake(0, 55, self.tabview.bounds.size.width, 55);[cell addSubview:self.ExpandView];}
}-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{if ( self.selectRow == indexPath.row ) {return 110;}elsereturn 56;
}