我想保存开关状态。我创建了自定义单元格类,在标签上打印一个开关,但有一个问题是,如果我搜索一些文本,然后表视图重新加载,我选择的开关状态将更改,是否可以保持该状态?
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
....
selectionStyle = UITableViewCellSelectionStyleNone;
CfResultFatch *temp = [result objectAtIndex:indexPath.row];
NSLog(@"%@",temp.complanName);
//[cell.switchOnOff setOn:NO];
[cell.switchOnOff setTag:indexPath.row];
[cell.switchOnOff addTarget:self action:@selector(selectUser:)forControlEvents:UIControlEventValueChanged];
[cell.switchOnOff setTag:indexPath.row];
cell.lblUserName.text = temp.complanName;
cell.textFld.text = temp.cipd;
return cell;
}
//选择切换状态改变时调用的用户
-(IBAction)selectUser:(UISwitch*)sender{
if(sender.on)
{
[selectedpet addObject:[result objectAtIndex:sender.tag]];
}else{
NSLog(@"%@",sender);
for(int j=0;j<[selectedpet count]; j++)
{
CfResultFatch *temp = [result objectAtIndex:sender.tag];
CfResultFatch *temp1= [selectedpet objectAtIndex:j];
if([(temp.complanName)isEqualToString:(temp1.complanName)]) {
[selectedpet removeObjectAtIndex:j];
}
}
}
}
//在searchBar中搜索这个方法是在搜索一些文本时调用,而数据是从数据库更改的。这里的问题是我选择0和1索引开关打开,然后搜索一些文本,表视图中的新数据带有0和1的索引打开,如何维护它,以及如何获得我以前的switch 状态
- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText{
NSString *weburl = [NSString stringWithFormat:@"%@%@", @"http://192.168.1.196/ravi/searchUser.php?mname=",searchText];
NSURL *url = [NSURL URLWithString:weburl];
NSData *data =[NSData dataWithContentsOfURL:url];
[self getData:data];
[temptab reloadData];
}
还有你。抱歉我的英语不好
当UISwitch
发生更改时,您应该存储它的状态。这可能不是最好的方法,但您可以将状态存储在这样的字典中:
NSMutableDictionary *states = [NSMutableDictionary alloc] init];
[states setObject:[NSNumber numberWithBool:sender.on] forKey:[NSNumber numberWithInt:sender.tag]]
然后,当显示UITableViewCell
:时
if ([states objectForKey:[NSNumber numberWithInt:indexPath.row]] != nil)
cell.switchOnOff.on = [[states objectForKey:[NSNumber numberWithInt:indexPath.row]] boolValue]
else
cell.switchOnOff.on = NO;