UITableView - 更改與正在按下按鈕同一行上的文本字段

Question

我一直在第一次嘗試表格視圖，並且很難理解在執行操作時如何區分UI元素（如文本字段）細胞（例如按下按鈕）。

現在我在每一行都有一個按鈕和一個文本字段。爲了做到這一點：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
static NSString *CellIdentifier = @"gameCell"; 
    gameViewCell *cell = [tableView 
         dequeueReusableCellWithIdentifier:CellIdentifier 
         forIndexPath:indexPath]; 

    long row = [indexPath row]; 

//Button to change text field 
    strokeUp = [UIButton buttonWithType:UIButtonTypeCustom]; 
    strokeUp.frame = CGRectMake(248.0f, 11.0f, 80.0f, 32.0f); 
    [strokeUp setTag:indexPath.row]; 
    [strokeUp addTarget:self action:@selector(addStroke:) forControlEvents:UIControlEventTouchUpInside]; 
    [cell.contentView addSubview:strokeUp]; 

//Text field that changes (puts '1' in box for now) 
    strokesBox = [[UITextField alloc] initWithFrame:CGRectMake(223.0f, 11.0f, 37.0f, 32.0f)]; 
    strokesBox.delegate = self; 
    [strokesBox setTag:indexPath.row]; 
    [cell.contentView addSubview:strokesBox]; 

    return cell; 
} 

這就是我在點擊strokeUp按鈕時所做的。我希望與按鈕位於同一行的文本字段顯示'1'（稍後它會將1添加到框中的內容中）。根據用戶在前一個屏幕中選擇的行數，行數從2到6不等。

- (void)addStroke:(id)sender 
{ 
    CGPoint buttonPosition = [sender convertPoint:CGPointZero toView:table]; 
    NSIndexPath *indexPath = [table indexPathForRowAtPoint:buttonPosition]; 
    UIButton *senderButton = (UIButton *)sender; 
    if (senderButton.tag == 0) 
    { 
     NSLog(@"Row 1"); 
     UITableViewCell *cell = [table cellForRowAtIndexPath:indexPath]; 
     UITextField *sampleField = (UITextField *)[cell viewWithTag:0]; 
     theTextField = @"1"; 
    } 
    else if (senderButton.tag == 1) { 
     NSLog(@"Row 2"); 
     UITableViewCell *cell = [table cellForRowAtIndexPath:indexPath]; 
     UITextField *sampleField = (UITextField *)[cell viewWithTag:1]; 
     sampleField.text = @"1"; 
    } 
} 

Answer 1

設置t文本框的按鈕不同的公司說

[strokesBox setTag:indexPath.row+10]; 


// and set this code in action 


- (void)addStroke:(id)sender 
{ 
    int tag = [(UIButton *)sender tag] 
    UITextField *textField = (UITextField *)[table viewWithTag:tag+10]; 
    textField.text=[NSString stringWithFormat:@"%d",tag+1]; 
} 

Answer 2

更多convinent的方法是創建一個自定義單元格，使按鈕&文本框的IBOutlets。

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
static NSString *CellIdentifier = @"gameCell"; 
CustomCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
cell.myButton addTarget:self action:@selector(addStroke:) forControlEvents:UIControlEventTouchUpInside]; 

    return cell; 
} 

然後在addStoke：方法使用

CustomCell *cell =(CustomCell) [sender superView]; 

現在，你可以操縱細胞

cell.textField1.text=@"test1"; 

這裏的文本框的文本是自定義單元格的教程 http://mobile.tutsplus.com/tutorials/iphone/customizing-uitableview-cell/

Answer 3

嘗試如下

第一次使用數組來設置文本框的值下面的代碼

strokesBox = [[UITextField alloc] initWithFrame:CGRectMake(223.0f, 11.0f, 37.0f, 32.0f)]; 
strokesBox.delegate = self; 
[strokesBox setTag:indexPath.row]; 
[strokesBox setText:[myMutableArray objectatindex:indexPath.row]]; 
[cell.contentView addSubview:strokesBox]; 

現在

按鈕點擊陣列和更新更改值細胞作爲波紋管

- (void)addStroke:(id)sender 
{ 
    [myMutableArray replaceObjectAtIndex:sender.tag withObject:@"1"]; 

    NSIndexPath *indexPath = [NSIndexPath indexPathForRow:sender.tag inSection:0]; 
NSArray *indexPaths = [[NSArray alloc] initWithObjects:indexPath, nil]; 
[self.tableView reloadRowsAtIndexPaths:indexPaths withRowAnimation:UITableViewRowAnimationNone]; 
[indexPaths release]; 
} 

Answer 4

試試這個。

- (void)addStroke:(id)sender{ 
    UITableViewCell *cell=(UITableViewCell*)[sender superview]; 
    for (UITextField *textField in [cell subviews]) { 
     if ([textField isKindOfClass:[UITextField class]]) { 
      textField.text=@"Rajneesh"; 
     } 
    } 
}