錯誤：控制到達非void函數

Question

我使用下面我tableViewController類代碼的末尾： 與以下錯誤：

錯誤：控制到達非void函數結束

//customize the appearance of the table view cell 

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath 
{ 
    static NSString *CellIdentifier = @"Cell"; 

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    if (cell == nil) 
    { 
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; 
    } 


    if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) 
    { 
     cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; 
    } 

    //configure the cell 

    cell.textLabel.text = [optionList objectAtIndex:indexPath.row]; 


} 

Answer 1

只需將您的方法替換爲：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath 
{ 
    static NSString *CellIdentifier = @"Cell"; 

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    if (cell == nil) 
    { 
     cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; 
    } 


    if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) 
    { 
     cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; 
    } 

    //configure the cell 

    cell.textLabel.text = [optionList objectAtIndex:indexPath.row]; 

    //This code you did not added earlier... 
    return cell; 

} 

我剛剛將return cell;添加到您的代碼中。