UItextField becomeFirstReasponder返回否

Question

我有一个自定义UITableViewCells的UITableView，每个都有两个UITextFields。当我在打开的视图中选择一个UITextField，即不滚动时，在打开的视图中选择一个UITextField。它成为FirstReasponder，我可以输入文本，因为我打开在打开的视图中输入所有UITextFields可以成为FirstReasponder，但是当我到达该开放视图的UITableViewCells的末尾，并尝试加载当前不可见的下一个UITableViewCell并将其设置为UITextField成为第一个应答者dosnt的工作。

我在textFieldShouldReturn中设置了一个if语句，它确认textField返回NO成为FirstReasponder。

我想知道如何解决这个问题，我一直在这个问题上停留了一段时间，并寻找解决方案，但还没有找到符合我的情况的任何东西。下面是我使用的UITextFieldDelegates，因为我认为在这里我应该做一些像调用或加载下一个UITableViewCell的东西，但我不知道如何。

#pragma mark - Textfield Delegates 
-(BOOL)textFieldShouldEndEditing:(UITextField *)textField 
{ 
    [textField resignFirstResponder]; 

    if ([textField isEqual:cell.widthTexField]) { 
     nWidth = [[sortedItemsArray objectAtIndex:textField.tag] valueForKey:@"w_MM"]; 
    } else if ([textField isEqual:cell.heightTextField]) { 
     nHeight = [[sortedItemsArray objectAtIndex:textField.tag] valueForKey:@"h_MM"]; 
    } 
    return YES; 
} 

-(BOOL)textFieldShouldBeginEditing:(UITextField*)textfield { 

     int height = self.finishingTableView.frame.size.height; 
     NSLog(@"%i", height); 
     self.finishingTableView.frame= CGRectMake(self.finishingTableView.frame.origin.x, self.finishingTableView.frame.origin.y, self.finishingTableView.frame.size.width, 307); 

    // select correct row 
    if (textfield.tag > 999999) { 
     int adjustTag = textfield.tag-1000000; // remove a million so that you have the text fields correct position in the table. (this is only for height textfields) 
     NSIndexPath *indexPath =[NSIndexPath indexPathForRow:adjustTag inSection:0]; 
     [finishingTableView selectRowAtIndexPath:indexPath animated:NO scrollPosition:UITableViewScrollPositionNone]; 
     [self tableView:finishingTableView didSelectRowAtIndexPath:indexPath]; 
     [self.finishingTableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionNone animated:YES]; 
     return YES; 
    } else { 
     NSIndexPath *indexPath =[NSIndexPath indexPathForRow:textfield.tag inSection:0]; 
     [finishingTableView selectRowAtIndexPath:indexPath animated:NO scrollPosition:UITableViewScrollPositionNone]; 
     [self tableView:finishingTableView didSelectRowAtIndexPath:indexPath]; 
     [self.finishingTableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionNone animated:YES]; 
     return YES; 
    } 
    return YES; 
} 

- (BOOL)textFieldShouldReturn:(UITextField *)textField 
{ 
    NSLog(@"%i", textField.tag+1); 
    [[self.view viewWithTag:textField.tag+1] becomeFirstResponder]; 

    BOOL success = [[self.view viewWithTag:textField.tag+1] becomeFirstResponder]; 
    if (success) { 
     NSLog(@"HypnosisView became the first responder"); 
    } else { 
     NSLog(@"Could not become first responder"); 
    } 

    // this means there has been a change in the UItextfield 


    NSLog(@"%@", selectedItemDictionary); 
    if (textField.tag < 999999) { 
     tempFinishingObjectDictionary = [selectedItemDictionary mutableCopy]; 
     if (![textField.text isEqualToString:[selectedItemDictionary objectForKey:@"w_MM"]]) { 
      tempUpdatedRow = @"T"; 
      // remove kevalues 
      [tempFinishingObjectDictionary removeObjectForKey:@"updatedRow"]; 
      [tempFinishingObjectDictionary removeObjectForKey:@"new_w_MM"]; 
      // update keyvalues 
      [tempFinishingObjectDictionary setValue:tempUpdatedRow forKey:@"updatedRow"]; 
      [tempFinishingObjectDictionary setValue:textField.text forKey:@"new_w_MM"]; 
     } 
    } else { 
     if (![textField.text isEqualToString:[selectedItemDictionary objectForKey:@"h_MM"]]) { 
      tempUpdatedRow = @"T"; 
      // remove kevalues 
      [tempFinishingObjectDictionary removeObjectForKey:@"updatedRow"]; 
      [tempFinishingObjectDictionary removeObjectForKey:@"new_h_MM"]; 
      // update keyvalues 
      [tempFinishingObjectDictionary setValue:tempUpdatedRow forKey:@"updatedRow"]; 
      [tempFinishingObjectDictionary setValue:textField.text forKey:@"new_h_MM"]; 
     } 
    } 
    NSLog(@"%@", tempFinishingObjectDictionary); 
    [coreDataController editSelectedFinishing:htmlProjID UpdatedNSD:tempFinishingObjectDictionary SelectedRow:selectedItemIndexPathRow]; 
    [SVProgressHUD dismiss]; 


    NSLog(@"%@", selectedItemDictionary); 

    return YES; 
} 

任何帮助将超级赞赏，因为我真的坚持这一点。

Answer 1

在你的textFieldShouldReturn当你转到下一个单元格时，你应该检查两个单元格是否离开屏幕（因此不存在）。如果是当且仅当屏幕上，你应该通过一个细胞

[tableview setContentOffset:CGPointMake(tableview.contentOffset.x,tableview.contentOffset.y + cellHeight) animated:YES]; 

您将有此滚动调整自己的喜好，因为我不知道你的应用程序如何流动滚动表。