objective-c - 从 NSTokenField 获取 token

Question

我可以通过执行 [NSTokenField stringValue] 获取 NSTokenField 的值，但这不会单独返回标记。我想要获取的是数组中的 token 字段，即 ['token', 'token2']。

我对 Cocoa/Objective-c 有点无知，所以如果我遗漏了一些明显的东西，我不会感到惊讶。

NSTokenField 不响应 count 所以我不确定是否有可能取回 token 。

谢谢。

Answer 1

来自 the Apple documentation :

To retrieve the objects represented by the tokens in a token field, send the token field an objectValue message. Although this method is declared by NSControl, NSTokenField implements it to return an array of represented objects. If the token field simply contains a series of strings, objectValue returns an array of strings. To set the represented objects of a token field, use the setObjectValue: method, passing in an array of represented objects. If these objects aren’t strings, NSTokenField then queries its delegate for the display strings to use for each token.