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POInserting UITextField into a TableView
 

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  1. POInserting UITextField into a TableView
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    <p>I wanted to have textFields in a tableView. So I inserted them manually in the tableView in the storyboard and modified their individual properties. However, I could not see the text fields when I ran the program. I repeated the same procedure with a switch. But it still did not run. So I figured that the objects are not being shown despite the fact that they are present in the storyboard. </p> <p>Q1. Any idea why this is the case?</p> <p>In order to overcome this problem, I inserted these objects programmatically. For UISwitch, I added the following code in <code>cellForRowAtindexPath</code> right after <code>initWithStyle:style reuseIdentifier:reuseIdentifier</code>. </p> <pre><code>UISwitch *newSwitch = [[UISwitch alloc] initWithFrame:CGRectMake(25, 55, 77, 27)]; [newSwitch addTarget: self action: @selector(pictureSwitchAction:) forControlEvents:UIControlEventValueChanged]; [self.view addSubview:newSwitch]; </code></pre> <p>This works fine. <code>pictureSwitchAction</code> method is called as expected.</p> <p>However, when I try to do similar thing with UITextField, the app crashes. (FYI... <code>field0</code> is a declared as <code>property</code>.) Here's my code:</p> <pre><code>field0 = [[UITextField alloc] initWithFrame:CGRectMake(0, 50, 320, 44)]; // (1) cell = (UITableViewCell *)[field0 superview]; // (2) [self.view addSubview:field0]; // (3) </code></pre> <p>(1) and (2) (commented (3)) crash the app. Error: <code>*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'UITableView dataSource must return a cell from tableView:cellForRowAtIndexPath:'</code></p> <p>My understanding is that the cell has to be return first before I can allocate some value to it. But (1) and (3) (commented (2)), yield no result. I don't know why this works for a switch and not UITextField.</p> <p>Any responses to Q1 and how to insert textField programmatically?</p> <p>Thanks!</p> <p><strong>Edit 1</strong></p> <pre><code>- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier]; } cell.selectionStyle = UITableViewCellSelectionStyleNone; // VERY IMPORTANT if(indexPath.section == 2) { if (indexPath.row == 0) { field0 = [[UITextField alloc] initWithFrame:CGRectMake(0, 50, 320, 44)]; cell = (UITableViewCell *)[field0 superview]; // [self.view addSubview:field0]; } if (indexPath.row == 1) { field1 = [[UITextField alloc] initWithFrame:CGRectMake(0, 50, 300, 43)]; cell = (UITableViewCell *)[field1 superview]; // [self.view addSubview:field1]; } if (indexPath.row == 2) { field2 = [[UITextField alloc] initWithFrame:CGRectMake(0, 50, 300, 43)]; cell = (UITableViewCell *)[field2 superview]; // [self.view addSubview:field2]; } } return cell; } </code></pre>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
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    1. USRutvij Kotecha
    1. USRutvij Kotecha
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. COI suspect your problem is how you put it all together. Post your entire `tableView:cellForRowAtIndexPath:` method, as that should shed light on why you get the exception.
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      1. POInserting UITextField into a TableView
      1. USkamprath
    2. COsure.. pls check my edit in 2 mins..
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      1. POInserting UITextField into a TableView
      1. USRutvij Kotecha
 

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