iphone - 将闪光灯模式设置为默认关闭

Question

我正在尝试将 UIImagePickerController 中的相机闪光灯模式设置为关闭，但我不明白 the reference page 。这是我的代码:

- (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];
}}

我尝试设置 picker.cameraDevice = UIImagePickerControllerCameraFlashModeOff，但这会导致错误。引用页说cameraDevice是一个属性。这是否意味着我需要自己创建该属性，或者它位于某个地方？因为如果我不对代码执行任何操作，但将闪光灯模式设置为自动，相机就会工作......

显然有一些我不明白的地方。 :/

Answer 1

将 picker.cameraDevice = UIImagePickerControllerCameraFlashModeOff 替换为
picker.cameraFlashMode = UIImagePickerControllerCameraFlashModeOff;