iphone - 在图像选择器模式视图中更改按钮名称和功能

Question

如何更改图像选择器模式视图中的“选择”按钮名称和功能？

我想将名称更改为“上传”按钮，以将电影上传到网络。

Answer 1

将此方法用作：

-(void)saveImages:(id)sender
{

}
- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated {
    UINavigationItem *ipcNavBarTopItem;


    // add done button to right side of nav bar
    UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithTitle:@"Custom Title"
                                                                   style:UIBarButtonItemStylePlain
                                                                  target:self
                                                                  action:@selector(saveImages:)];

    UINavigationBar *bar = navigationController.navigationBar;
    [bar setHidden:NO];
    ipcNavBarTopItem = bar.topItem;
    ipcNavBarTopItem.title = @"any Title";
    ipcNavBarTopItem.rightBarButtonItem = doneButton;
}