將閃光燈模式設置爲關閉默認

Question

我試圖將UIImagePickerController中的相機閃光燈模式設置爲關閉，但我不明白the reference page。這裏是我的代碼：

- (void)getMediaFromSource:(UIImagePickerControllerSourceType)sourceType { 
NSArray *mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:sourceType]; 
if ([UIImagePickerController isSourceTypeAvailable: 
    sourceType] && [mediaTypes count] > 0) { 
    NSArray *mediaTypes = [UIImagePickerController 
          availableMediaTypesForSourceType:sourceType]; 
    mediaTypes = [[NSArray alloc] initWithObjects: (NSString *) kUTTypeImage, nil]; 
    UIImagePickerController *picker = 
    [[UIImagePickerController alloc] init]; 
    UIImagePickerControllerCameraDevice *device; 
    picker.mediaTypes = mediaTypes; 
    picker.delegate = self; 
    picker.allowsEditing = YES; 
    picker.sourceType = sourceType; 
    [self presentModalViewController:picker animated:YES]; 
    [picker release]; 
}} 

我試過設置picker.cameraDevice = UIImagePickerControllerCameraFlashModeOff，但這會導致錯誤。參考頁面說cameraDevice是一個屬性。這是否意味着我需要自己創建該屬性，還是位於某處？ '因爲相機的作品，如果我不做任何代碼，但閃光燈模式設置爲自動...

顯然有一些我不明白。 ：/

Answer 1

與
picker.cameraFlashMode = UIImagePickerControllerCameraFlashModeOff;