如何在UIImagePickerController中更改取消按鈕標題？

Question

目前我正在開發一個多語言應用程序，我想更改UIImagePickerController的Cancel ， Use和Retake按鈕標題。 我怎樣才能做到這一點？

Answer 1

我的問題是通過使用自定義覆蓋類解決的。

self.picker = [[UIImagePickerController alloc] init];
self.picker.sourceType = UIImagePickerControllerSourceTypeCamera;
self.picker.cameraCaptureMode = UIImagePickerControllerCameraCaptureModePhoto;
self.picker.cameraDevice = UIImagePickerControllerCameraDeviceRear;
self.picker.showsCameraControls = NO;
self.picker.navigationBarHidden = YES;
self.picker.toolbarHidden = YES;
self.picker.wantsFullScreenLayout = YES;

// Insert the overlay
self.overlay = [[OverlayViewController alloc] initWithNibName:@"Overlay" bundle:nil];
self.overlay.pickerReference = self.picker;
self.picker.cameraOverlayView = self.overlay.view;
self.picker.delegate = self.overlay;

[self presentModalViewController:self.picker animated:NO];

Answer 2

只需在項目中添加所需的本地化：
1）選擇工程文件；
2）在“項目和目標”列表中選擇項目;
3）選擇“信息”（在屏幕頂部）；
4）在“本地化”部分中添加所需的語言。

Answer 3

它會自動更改為設備語言。

你不需要擔心這個。 你也無法改變它的行為。

諸如MFMessageComposer ， MFMailComposer ， UIImagePicker等控件。將默認控件文本自動更改為設備語言。

Answer 4

將委托作為self分配給imagepicker控制器並添加以下代碼：

- (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:@\"Done\"
                            style:UIBarButtonItemStylePlain 
                            target:self 
                            action:@selector(saveImages:)];

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

Answer 5

這里只有好的解決方案...

//this is your camera method
- (void)startCameraControllerUsingDelegate:(id<UIImagePickerControllerDelegate, UINavigationControllerDelegate>)delegate gallery:(BOOL)openGallery
{
    if (([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera] == NO)
        || (delegate == nil))
        return;

    UIImagePickerController *cameraUI = [[UIImagePickerController alloc] init];
    if (openGallery) {
        cameraUI.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    } else {
        cameraUI.sourceType = UIImagePickerControllerSourceTypeCamera;
    }

    cameraUI.allowsEditing = YES;
    //set your delegate type UINavigationControllerDelegate here! It will trigger function bellow!
    cameraUI.delegate = delegate;

    [self presentViewController:cameraUI animated:YES completion:nil];
}

//UINavigationControllerDelegate function
- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated
{
    //this is where magic happends! This leaves button empty and it will not ruin title center position!... or give it your desired string
    viewController.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStylePlain target:nil action:nil];
}

Answer 6

只需查找並更改UIButton的文本

-(void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated
    {
        for (UIView *v in viewController.view.subviews)
        {
            if ([v isKindOfClass:[NSClassFromString(@"CMKBottomBar") class]])
            {
                SEL se = NSSelectorFromString(@"cancelButton");

                if ([v respondsToSelector:se])
                {
                    UIButton *cancelButton =  [v performSelector:se];
                    [cancelButton setTitle:@"New title" forState:UIControlStateNormal];
                }

            }
        }
    }