argumentList只显示一个

Question

我试过下面的代码，但只有otherButtonTitles的第一个出现。

- (id)initWithCancelButtonTitle:(NSString *)cancelButtonTitle primaryButtonTitle:(NSString *)primaryButtonTitle destructiveButtonTitle:(NSString *)destructiveButtonTitle otherButtonTitles:(NSString *)otherButtonTitles, ... 
{ 
    self = [self init]; 
    if (self) 
    { 
     // Build normal buttons 
     va_list argumentList; 
     va_start(argumentList, otherButtonTitles); 

     NSString *argString = otherButtonTitles; 

     while (argString != nil) 
     { 
      UIButton *button = [self buildButtonWithTitle:argString]; 

      [self.buttons addObject:button]; 

      argString = va_arg(argumentList, NSString *); 
     } 

     va_end(argumentList); 

     // Build cancel button 
     UIButton *cancelButton = [self buildCancelButtonWithTitle:cancelButtonTitle]; 
     [self.buttons insertObject:cancelButton atIndex:0]; 

     // Add primary button 
     if (primaryButtonTitle) 
     { 
      UIButton *primaryButton = [self buildPrimaryButtonWithTitle:primaryButtonTitle]; 
      [self.buttons addObject:primaryButton]; 
     } 

     // Add destroy button 
     if (destructiveButtonTitle) 
     { 
      UIButton *destroyButton = [self buildDestroyButtonWithTitle:destructiveButtonTitle]; 
      [self.buttons insertObject:destroyButton atIndex:1]; 
     } 
    } 

    return self; 
} 

如何修改？

Answer 1

这里是我为你写的一般模板。它像一个有着各种参数的魅力一样工作。我认为它可以帮助您解决您轻松的问题：

.H文件

- (NSMutableArray *)arrayWithDictionaries:(NSDictionary *)dictionary, ... NS_REQUIRES_NIL_TERMINATION; 

.M文件

- (NSMutableArray *)arrayWithDictionaries:(NSDictionary *)dictionary, ... { 
    NSMutableArray *_array = [[NSMutableArray alloc] init]; 

    // I'm building the array of the arguments 
    va_list _arguments; 
    va_start(_arguments, dictionary); 

    for (NSDictionary *_currentArgument = dictionary; _currentArgument != nil; _currentArgument = va_arg(_arguments, NSDictionary*)) { 
     [_array addObject:_currentArgument]; 
    } 

    va_end(_arguments); 

    return _array; 
} 

---

更新＃1（在090413）

这里是你的代码......

.H文件

- (id)initWithCancelButtonTitle:(NSString *)cancelButtonTitle primaryButtonTitle:(NSString *)primaryButtonTitle destructiveButtonTitle:(NSString *)destructiveButtonTitle otherButtonTitles:(NSString *)otherButtonTitles, ... NS_REQUIRES_NIL_TERMINATION; 

.M文件

- (id)initWithCancelButtonTitle:(NSString *)cancelButtonTitle primaryButtonTitle:(NSString *)primaryButtonTitle destructiveButtonTitle:(NSString *)destructiveButtonTitle otherButtonTitles:(NSString *)otherButtonTitles, ... 
{ 
    self = [self init]; 
    if (self) 
    { 
     // Build normal buttons 
     va_list _arguments; 
     va_start(_arguments, otherButtonTitles); 

     for (NSString *_currentArgument = otherButtonTitles; _currentArgument != nil; _currentArgument = va_arg(_arguments, NSString*)) { 
      UIButton *button = [self buildButtonWithTitle:_currentArgument]; 
      [self.buttons addObject:button]; 
     } 

     va_end(_arguments); 

     // Build cancel button 
     UIButton *cancelButton = [self buildCancelButtonWithTitle:cancelButtonTitle]; 
     [self.buttons insertObject:cancelButton atIndex:0]; 

     // Add primary button 
     if (primaryButtonTitle) 
     { 
      UIButton *primaryButton = [self buildPrimaryButtonWithTitle:primaryButtonTitle]; 
      [self.buttons addObject:primaryButton]; 
     } 

     // Add destroy button 
     if (destructiveButtonTitle) 
     { 
      UIButton *destroyButton = [self buildDestroyButtonWithTitle:destructiveButtonTitle]; 
      [self.buttons insertObject:destroyButton atIndex:1]; 
     } 
    } 

    return self; 
} 

---

更新＃2（在090413）

你应该这样调用方法：

[[... alloc] initWithCancelButtonTitle:@"Cancel Title" primaryButtonTitle:@"Primary Title" destructiveButtonTitle:@"Destructive Title" otherButtonTitles:@"Other Title 1", @"Other Title 2", @"Other Title 3", nil];