从plist中选择随机字

Question

可能重复：
displaying a random word from a plist

我有它的一些字的plist现在我会尽量显示plist中的一个随机单词，但我的应用程序崩溃我不知道如何解决这个问题。

这是我的代码：

NSArray *randomAddons = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"wordsENG" ofType:@"plist"]]; 

NSLog(@"Array: %@", randomAddons); 

int randomIndex = arc4random() % [randomAddons count]; 

mainTextController.text = [username2 stringByAppendingString:[randomAddons objectAtIndex:randomIndex]]; 

这是崩溃：

Array: (
    (
    DANDAN, 
    DONDON, 
    SAMSAM, 
    SANSAN 
) 
) 
2012-07-10 11:23:28.047 spinningyarn[336:1bb03] -[__NSCFArray length]: unrecognized  selector sent to instance 0xa26cad0 
2012-07-10 11:23:28.047 spinningyarn[336:1bb03] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFArray length]: unrecognized selector sent to instance 0xa26cad0' 
*** First throw call stack: 
(0x1b04022 0x1ee0cd6 0x1b05cbd 0x1a6aed0 0x1a6acb2 0x1468bd9 0x115dc3 0x3de995 0x979ed9 0x981725 0x8ea4ab 0x9837c6 0x8c9885 0x2166330 0x2168509 0x1a3b803 0x1a3ad84 0x1a3ac9b 0x26287d8 0x262888a 0xb3d626 0x29e2 0x2955 0x1) 
terminate called throwing an exception 

我希望有人能帮助我

Answer 1

randomAddons是包含一个数组的数组...

尝试：

NSArray *randomAddons = [(NSArray*)[NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"wordsENG" ofType:@"plist"]] objectAtIndex:0]; 

NSLog(@"Array: %@", randomAddons); 

int randomIndex = arc4random() % [randomAddons count]; 

mainTextController.text = [username2 stringByAppendingString:[randomAddons objectAtIndex:randomIndex]];