我的 uiswitch 有问题UITableViewCell每当我更改属于特定部分的特定单元格中的开关值时。所有其他具有相同部分的单元格inexPath.row改变 。请帮忙 ？
这是我的代码cellForRowAtIndexPath method:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
//UISwitch *switchview = nil ;
if (cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:CellIdentifier];
}
UISwitch *switchController = [[UISwitch alloc] initWithFrame:CGRectZero];
CGRect switchFrame = switchController.frame;
NSString *str = [[self.SwitchArray objectAtIndex:indexPath.section] objectAtIndex:indexPath.row];
NSLog(@"string in cell%@", str);
//set its x and y value, this you will have to determine how to space it on the left side
switchFrame.origin.x = 50.0f;
switchFrame.origin.y = 10.0f;
switchController.frame = switchFrame;
[switchController addTarget:self action:@selector(switchChanged:) forControlEvents:UIControlEventValueChanged];
[cell addSubview:switchController ];
[addSubview:switchController];
if ([[[self.SwitchArray objectAtIndex:indexPath.section] objectAtIndex:indexPath.row ]isEqualToString:@"ON"])
{
switchController.on=YES;
}
else
{
switchController.on=NO;
}
return cell;
}
这是 SwitchChangedEvent：
-(void)switchChanged:(UISwitch *)sender
{
UITableViewCell *cell = (UITableViewCell *)[sender superview];
NSIndexPath *index=[mainTableView indexPathForCell:cell];
if (sender.on)
{
[[self.SwitchArray objectAtIndex:index.section] replaceObjectAtIndex:index.row withObject:@"ON"];
NSString *word= [[self.mainArray objectAtIndex:index.section ] objectAtIndex:index.row];
}
else
{
//call the first array by section
[[self.SwitchArray objectAtIndex:index.section] replaceObjectAtIndex:index.row withObject:@"OFF"];
NSString *word= [[self.mainArray objectAtIndex:index.section ] objectAtIndex:index.row];
}
[padFactoids setObject:[NSKeyedArchiver archivedDataWithRootObject:SwitchArray] forKey:@"savedArray"];
[padFactoids synchronize];
}
你有两个主要问题：
-
这段代码是错误的：
[cell addSubview:switchController ];
切勿向单元格添加子视图；仅将其添加到单元格中contentView.
您每次都添加开关cellForRowAtIndexPath:。但这些细胞正在被重复利用。所以一些细胞已经have开关。因此，您要向某些单元添加许多开关。
本文内容由网友自发贡献，版权归原作者所有，本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容，请联系:hwhale#tublm.com(使用前将#替换为@)
