改变SearchBar的字体颜色、大小以及游标颜色

找到一种方法，从SearchBar内部的TextFiled进行改变，代码如下：

- (void)setSearchBarTextfiled:(UISearchBar *)searchBar{
    for (UIView *view in searchBar.subviews){
        for (id subview in view.subviews){
            if ( [subview isKindOfClass:[UITextField class]] ){
                [(UITextField *)subview setTintColor:[UIColor redColor]]; //游标
                [(UITextField *)subview setFont:[MyFont fontSize:18]];
                [(UITextField *)subview setTextColor:[UIColor blackColor]];
                return;
            }
        }
    }
}

用searchBar对象调用就好了