只有一个UISwitch应该能够在UITableviewCell中切换

Question

我有一个tableview，其中每个单元格有一个UISwitch，当我选择一个单元格时，我将能够切换UISwitch，当我选择tableview中的下一个单元格时，我不应该能够切换它，或者即使我想要切换它，早先选择的切换应该被关掉UIAlertView ,,所以基本上只有一个UITableViewCell应该被允许切换。

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 

static NSString *cellIdentifier=@"cellIdentifier"; 
     PPtableCell *cell=(PPtableCell*)[tableView dequeueReusableCellWithIdentifier:cellIdentifier]; 

     if (cell==nil) 
     { 
      cell=[[PPtableCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier]; 
     } 

     cell.remedyImage.image=[[remedyArray objectAtIndex:indexPath.row]objectForKey:@"RemedyImageDic"]; 
     cell.remedyTextLabel.text=[[remedyArray objectAtIndex:indexPath.row]objectForKey:@"RemedyTxtDic"]; 
     cell.remedyLabel.text=[[remedyArray objectAtIndex:indexPath.row]objectForKey:@"RemedyName"]; 
     cell.remedyID=[[[remedyArray objectAtIndex:indexPath.row]objectForKey:@"RemedyID"]intValue]; 
     cell.frequency = [[[remedyArray objectAtIndex:indexPath.row]objectForKey:@"RemedyFrequency"]intValue]; 
     cell.symptomIDNo =[[[remedyArray objectAtIndex:indexPath.row]objectForKey:@"SymptomID"]intValue]; 

     // cell.textLabel.text = [[notify objectAtIndex:indexPath.row] objectForKey:@"notifyData"]; 


     // Specific Background Image Depending upon the Row 

     if (indexPath.row==0) 
     { 
      cell.backgroundCellImage.image=[UIImage imageNamed:@"top-cell.png"]; 
     } 
     else if (indexPath.row==remedyArray.count-1) 
     { 
      cell.backgroundCellImage.image=[UIImage imageNamed:@"bottom-cell.png"]; 
     } 
     else 
     { 
      cell.backgroundCellImage.image=[UIImage imageNamed:@"middle-cell.png"]; 
     } 


     if ([indexPath isEqual:remedySelectedIndexPath]) 
     { 
      cell.isZoomedIn = YES; 
     } 
     else 
     { 
      cell.isZoomedIn = NO; 
     } 

     return cell; 

    } 

} 



-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath 
{ 

if(tableView==remedyTableView) 
    { 

     PPtableCell *cell = nil; 
     cell=(PPtableCell*)[tableView cellForRowAtIndexPath:indexPath]; 
     cell.selectionStyle=UITableViewCellSelectionStyleNone; 
     CGSize maximumLabelSize=CGSizeMake(320.0,100.0); 
     CGSize expectedLabelSize=[cell.remedyTextLabel.text sizeWithFont:cell.remedyTextLabel.font constrainedToSize:maximumLabelSize 
                  lineBreakMode:cell.remedyTextLabel.lineBreakMode]; 

     if (expectedLabelSize.height > 17 || expectedLabelSize.width > 260.0) 
     { 
      if ([indexPath isEqual:remedySelectedIndexPath]) 
      { 
       remedySelectedIndexPath = nil; 
       [remedyTableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationNone]; 

      } 
      else 
      { 
       oldSelectedIndexPath=remedySelectedIndexPath; 
       remedySelectedIndexPath=indexPath; 

       if (oldSelectedIndexPath==nil) 
       { 
        [remedyTableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:remedySelectedIndexPath] withRowAnimation:UITableViewRowAnimationNone]; 

       } 

       else 
       { 
        [remedyTableView reloadRowsAtIndexPaths:[NSArray arrayWithObjects:oldSelectedIndexPath,remedySelectedIndexPath,nil] withRowAnimation:UITableViewRowAnimationNone]; 

       } 
      } 

     } 

    } 

} 

这里是与UISwitches交易代码：

(IBAction)notification:(id)sender { 
    if (sender == notifyMe) { 
     if(notifyMe.isOn == YES) { 
      toggle = YES; 
      NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults]; 
      [defaults setBool:notifyMe.on forKey:@"switchValueKey"]; 
      [defaults synchronize]; 
      NSLog(@"Notification is ON"); 
     } 
    } else { 
     toggle = NO; 
    } 
} 

if ([cellDelegate respondsToSelector:@selector(notificationReqd:)]) { 
    [cellDelegate notificationReqd:self]; 
} 
} 

Answer 1

我也有类似的仿真switches.I由具有UiSwitch分配标签和默认情况下禁用customview用户interaction.This查看在方法cellForRowAtIndexPath中设置为单元的辅助视图。

为了使活性细胞的相互作用实现

-(NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath 

根据NSIndexpath在yourtableview细胞找到开关customview并设置其属性userinteractionenabled哟YES

Answer 2

3步骤 -

1. 设置为setUserInteractionEnabled至NOUISwitchtableView:cellForRowAtIndexPath:

2. 设置setUSerIntertactionEnabled到YES特定细胞的UISwitch在tableView:didSelectRowAtIndexPath

3. 在tableView:didDeselectRowAtIndexPath

这就是所有你需要做的设置setUSerIntertactionEnabled到NO特定细胞的UISwitch。

被修改：

2和3你必须采取您选择小区或取消选择的参考。

对于您所要做的两个2和3

UITableViewCell *cell=[yourTableView cellForRowAtIndexPath:indexPath]; 
cell.notifyMe setUserInteractionEnable=YES; // set NO for step 3 

Answer 3

以下为更好的用户体验，你应该使用notifyMe.enabled而 不是notifyMe.userInteractionEnabled。

首先，禁用所有开关。你可以在cellForRowAtIndexPath:

… 
cell.notifyMe.enabled = NO; 
… 

实现这一目标要禁用被取消在电池开关：

- (NSIndexPath *)tableView:(UITableView *)tableView willDeselectRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    if (tableView == tableViewThatDealsWithSwitches) 
    { 
     PPtableCell *cell = (PPTableCell *)[tableView cellForRowAtIndexPath:indexPath]; 
     cell.notifyMe.enabled = NO; 
    } 
    return indexPath; 
} 

并使很快就会选择在细胞开关：

- (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    if (tableView == tableViewThatDealsWithSwitches) 
    { 
     cell.notifyMe.enabled = YES; 
     return indexPath; 
    } 
}