iPhone開發技巧之私有API--- UIBarButtonItem

如上所示，UIBarButtonSystemItem 的 100 ～ 110 就是系統提供的一些未公開的標準icon。

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NSMutableArray *items = [NSMutableArray array]; UIBarButtonItem *item = nil; for (int i = 100; i <= 109; i++) { item = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:i target:nil action:nil]; item.style = UIBarButtonItemStyleBordered; [items addObject:item]; [item release]; } item = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:110 target:nil action:nil]; item.style = UIBarButtonItemStylePlain; [items addObject:item]; [item release]; toolbar.items = items;