我可以阻止图像选择器中的确认屏幕出现吗？

Question

我到了ios的相机课。 ADMSImageUploader.h如下

#import <UIKit/UIKit.h>
#import <MobileCoreServices/MobileCoreServices.h>
#import <AssetsLibrary/AssetsLibrary.h>

@interface ADMSImageUploader : UIViewController <UIImagePickerControllerDelegate,UINavigationControllerDelegate>

@property BOOL newMedia;
@property (weak, nonatomic) IBOutlet UIImageView *previewImage;

- (IBAction)returnButtonClicked:(id)sender;
- (IBAction)retakeButtonClicked:(id)sender;
- (IBAction)uploadButtonClicked:(id)sender;


-(void)openCamera:(NSString *)dealerId : (NSString *)inventoryId;

@end

.m文件中的代码如下。下面有一个功能打开相机

-(void)useCamera{
     if ([UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypeCamera])
{
    UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
    imagePicker.delegate = self;
    imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
    imagePicker.mediaTypes = @[(NSString *) kUTTypeImage];
    imagePicker.allowsEditing = NO;
    [self presentViewController:imagePicker animated:YES completion:nil];
    _newMedia = YES;
}

}

这是相机的图像

我想阻止下面的屏幕出现并将捕获的图像显示到图像视图

谢谢你的帮助。

Answer 1

使用此代码。

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    UIImage* Image = [info valueForKey:@"UIImagePickerControllerOriginalImage"];
    [self previewImageOverlayView:Image];    
}

-(void)previewImageOverlayView :(UIImage *)captureImage
{
    CGRect deviceRect= [UIScreen mainScreen].bounds;
    float screenHeight=deviceRect.size.height;

    UIView *previewImageOveraLayView=[[UIView alloc] initWithFrame:deviceRect];
    [previewImageOveraLayView setAutoresizesSubviews:NO];

    UIImageView *previewImage=[[UIImageView alloc] init];
    [previewImage setContentMode:UIViewContentModeScaleAspectFill];
    [previewImage setFrame:CGRectMake(0,0,320,screenHeight-60)];
    [previewImage setImage:captureImage];
    [previewImageOveraLayView addSubview:previewImage];

    UIButton *retakeBtn=[UIButton buttonWithType:UIButtonTypeCustom];
    [retakeBtn addTarget:self action:@selector(useOrRetakeBtnPress:) forControlEvents:UIControlEventTouchUpInside];
    [retakeBtn setBackgroundColor:[UIColor blackColor]];
    [retakeBtn setTitle:@"Retake" forState:UIControlStateNormal];
    [retakeBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [retakeBtn setFrame:CGRectMake(0,screenHeight-60,160,60)];
    [previewImageOveraLayView addSubview:retakeBtn];


    UIButton *useBtn=[UIButton buttonWithType:UIButtonTypeCustom];
    [useBtn setTag:2000];
    [useBtn addTarget:self action:@selector(useOrRetakeBtnPress:) forControlEvents:UIControlEventTouchUpInside];
    [useBtn setBackgroundColor:[UIColor blackColor]];
    [useBtn setTitle:@"Use" forState:UIControlStateNormal];
    [useBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [useBtn setFrame:CGRectMake(160,screenHeight-60,160,60)];
    [previewImageOveraLayView addSubview:useBtn];


    [imagePicker.view addSubview:previewImageOveraLayView];
}
-(IBAction)useOrRetakeBtnPress:(UIButton*)sender
{
    [sender.superview removeFromSuperview];
}

Answer 2

您可以使用AVCapturSession而不是UIImagePickerController。您可以随意使用它并根据需要使用它。

有关此次访问Apple sample code for this

的详细信息