- (void)initSearchbar{
    self.wineSearchBar.delegate = self;
    
    [self.wineSearchBar setScopeBarButtonTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor redColor], NSForegroundColorAttributeName, [UIFont fontWithName:GENERAL_FONT size:13], NSFontAttributeName, nil] forState:UIControlStateNormal];
    [self.wineSearchBar setScopeBarButtonTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor whiteColor], NSForegroundColorAttributeName, [UIFont fontWithName:GENERAL_FONT size:13], NSFontAttributeName, nil] forState:UIControlStateSelected];
}

要求：iOS7 ＋

修改颜色： [UIColor redColor], NSForegroundColorAttributeName

修改字体：[UIFont fontWithName:GENERAL_FONT size:13], NSFontAttributeName

参考来源：http://stackoverflow.com/questions/15385050/color-of-scope-button-text-in-uisearchbar/

iOS 改变Search Bar中Scope Button中文本的颜色和字体