更改圖像選擇器模式視圖中的按鈕名稱和功能

Question

如何在圖像選擇器模式視圖中更改「選擇」按鈕名稱和功能？

我想將名稱更改爲「上傳」按鈕，將電影上傳到網絡。

Answer 1

使用此方法爲：

-(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; 
}