objective-c - 从 plist 中选择随机单词

Question

可能重复：
显示来自 plist 的随机单词

我有一个包含一些单词的 plist 现在我尝试显示该 plist 的随机单词，但我的应用程序崩溃了，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

我希望有人可以帮助我

Answer 1

randomAddons 是一个包含一个数组的数组...

尝试这个：

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]];