Jak otworzyć kamerę, gdy klikam Uibutton na iPhonie?

Question

Próbuję otworzyć aparat po kliknięciu aplikacji UIbutton w telefonie iPhone. Chcę zapisać przechwycony obraz w określonej przeze mnie lokalizacji.

Answer 1

trzeba użyć czegoś jak ten

- (IBAction)selectPhotos 
{ 
    UIImagePickerController *picker = [[UIImagePickerController alloc] init]; 
    picker.sourceType = UIImagePickerControllerSourceTypeCamera; 
    picker.delegate = self; 
    [self presentModalViewController:picker animated:YES]; 
    [picker release]; 
} 

- (void)imagePickerController:(UIImagePickerController *)picker 
     didFinishPickingImage:(UIImage *)image 
        editingInfo:(NSDictionary *)editingInfo 
{ 
    imageView.image = image; 
    [[picker parentViewController] dismissModalViewControllerAnimated:YES]; 
} 


- (IBAction)saveImage:(id)sender { 
    if(imageView.image) { 
     [self showProgressIndicator:@"Saving"]; 
     UIImageWriteToSavedPhotosAlbum(imageView.image, self, @selector(finishUIImageWriteToSavedPhotosAlbum:didFinishSavingWithError:contextInfo:), nil); 
    } 
} 

Answer 2

użytku [picker dismissViewControllerAnimated:YES completion:nil];

zamiast [[picker parentViewController] dismissModalViewControllerAnimated:YES];

Answer 3

- (IBAction) useCamera: (id)sender 
{ 
    if ([UIImagePickerController isSourceTypeAvailable: 
     UIImagePickerControllerSourceTypeCamera]) 
    { 
     UIImagePickerController *imagePicker = 
     [[UIImagePickerController alloc] init]; 
     imagePicker.delegate = self; 
     imagePicker.sourceType = 
     UIImagePickerControllerSourceTypeCamera; 
     imagePicker.mediaTypes = [NSArray arrayWithObjects: 
            (NSString *) kUTTypeImage, 
            nil]; 
     imagePicker.allowsEditing = NO; 
     [self presentModalViewController:imagePicker 
           animated:YES]; 
     newMedia = YES; 
    } 
} 
-(void)imagePickerController:(UIImagePickerController *)picker 
didFinishPickingMediaWithInfo:(NSDictionary *)info 
{ 
    [self.popoverController dismissPopoverAnimated:true]; 

    NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType]; 
    [self dismissModalViewControllerAnimated:YES]; 
    if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) 
    { 
    UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage]; 
    imageView.image = image; 
     if (newMedia) 
      UIImageWriteToSavedPhotosAlbum(image, self, 
              @selector(image:finishedSavingWithError:contextInfo:),nil); 
    } 

} 
-(void)image:(UIImage *)image 
finishedSavingWithError:(NSError *)error 
contextInfo:(void *)contextInfo 
{ 
    if (error) 
    { 
     UIAlertView *alert = [[UIAlertView alloc] 
           initWithTitle: @"Save failed" 
           message: @"Failed to save image" 
           delegate: self 
           cancelButtonTitle:@"OK" 
           otherButtonTitles:nil]; 
     [alert show]; 

    } 
} 

-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker 
{ 
    [self dismissModalViewControllerAnimated:YES]; 
}