我对 iPhone 开发相当陌生，我正在尝试使用 UITableViewCell 创建我自己的“邀请你的 friend ”系统。我检查了其他帖子，但我不知道如何解决它。我现在遇到的一个问题是，我的 UITableViewCell 配件正在重复。例如。当我单击此复选框时。
http://min.us/mCHcd3kwI 如果有人决定查看的话，这是我的项目链接
如果我向下滚动，其他复选框也会被标记
我想知道如何解决这个问题。
这是我的代码
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
switch (section) {
case 0:
return 4;
break;
case 1:
return [aArray count];
break;
case 2:
return [bArray count];
break;
case 3:
return [cArray count];
break;
case 4:
return [dArray count];
break;
case 5:
return [eArray count];
break;
case 6:
return [fArray count];
break;
case 7:
return [gArray count];
break;
case 8:
return [hArray count];
break;
case 9:
return [iArray count];
break;
case 10:
return [jArray count];
break;
case 11:
return [kArray count];
break;
case 12:
return [lArray count];
break;
case 13:
return [mArray count];
break;
case 14:
return [nArray count];
break;
case 15:
return [oArray count];
break;
case 16:
return [pArray count];
break;
case 17:
return [qArray count];
break;
case 18:
return [rArray count];
break;
case 19:
return [sArray count];
break;
case 20:
return [tArray count];
break;
case 21:
return [uArray count];
break;
case 22:
return [vArray count];
break;
case 23:
return [wArray count];
break;
case 24:
return [xArray count];
break;
case 25:
return [yArray count];
break;
case 26:
return [zArray count];
break;
}}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
UITableViewCell *cell = nil;
if([tableView isEqual:self.myTableView]){
static NSString *TableViewIdentifier = @"MyCells";
cell = [tableView dequeueReusableCellWithIdentifier:TableViewIdentifier];
if(cell == nil){
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:TableViewIdentifier];
}
NSString *group;
NSUInteger row = [indexPath row];
cell.selectionStyle = UITableViewCellSelectionStyleGray;
if([selectedRowsArray containsObject:[content objectAtIndex:row]]){
cell.imageView.image = [UIImage imageNamed:@"<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="e89b8d848d8b9c8d8ca8da90c698868f" rel="noreferrer noopener nofollow">[email protected]</a>"];
}else {
cell.imageView.image = [UIImage imageNamed:@"<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="99ecf7eafcf5fcfaedfcfdd9abe1b7e9f7fe" rel="noreferrer noopener nofollow">[email protected]</a>"];
}
cell.imageView.userInteractionEnabled = YES;
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(handleChecking:)];
[cell.imageView addGestureRecognizer:tap];
switch (indexPath.section) {
case 0:
group = [suggestedPeople objectAtIndex:row];
cell.textLabel.text = group;
break;
case 1:
group = [aArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 2:
group = [bArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 3:
group = [cArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 4:
group = [dArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 5:
group = [eArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 6:
group = [fArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 7:
group = [gArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 8:
group = [hArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 9:
group = [iArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 10:
group = [jArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 11:
group = [kArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 12:
group = [lArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 13:
group = [mArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 14:
group = [nArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 15:
group = [oArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 16:
group = [pArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 17:
group = [qArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 18:
group = [rArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 19:
group = [sArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 20:
group = [tArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 21:
group = [uArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 22:
group = [vArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 23:
group = [wArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 24:
group = [xArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 25:
group = [yArray objectAtIndex:row];
cell.textLabel.text = group;
break;
case 26:
group = [zArray objectAtIndex:row];
cell.textLabel.text = group;
break;
}
}
return cell;
}
最佳答案
这是因为您仅存储行来确定是否检查单元格。由于每个部分在索引 0/1 处都有一个单元格，因此这不会按您希望的方式工作。
if([selectedRowsArray containsObject:[content objectAtIndex:row]]){
cell.imageView.image = [UIImage imageNamed:@"<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="95e6f0f9f0f6e1f0f1d5a7edbbe5fbf2" rel="noreferrer noopener nofollow">[email protected]</a>"];
}else {
cell.imageView.image = [UIImage imageNamed:@"<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="bbced5c8ded7ded8cfdedffb89c395cbd5dc" rel="noreferrer noopener nofollow">[email protected]</a>"];
}
将其替换为:(假设您有一个 NSMutableSet 作为属性 self.selectedIndexPaths)
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
...
if ([self.selectedIndexPaths containsObject:indexPath])
{
cell.imageView.image = [UIImage imageNamed:@"<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="80f3e5ece5e3f4e5e4c0b2f8aef0eee7" rel="noreferrer noopener nofollow">[email protected]</a>"];
}
else
{
cell.imageView.image = [UIImage imageNamed:@"<a href="https://stackoverflow.com/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="f1849f82949d9492859495b1c389df819f96" rel="noreferrer noopener nofollow">[email protected]</a>"];
}
...
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if ([self.selectedIndexPaths containsObject:indexPath])
{
[self.selectedIndexPaths addObject:indexPath];
}
else
{
[self.selectedIndexPaths removeObject:indexPath];
}
[tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationNone];
}
关于iphone - UITableViewCell imageView 重复，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/10256156/