如何以编程方式从画廊发送照片？

Question

I need to perform "send photo" functionality. I have a web service method which takes image as parameter. And I need to perform the following:

User clicks on a button, and then photo gallery opens(also be cool to perform send photo from camera ie camera opens user make photo and then send) User select photo and click send(then my method should work).

Please tell me is there any way to do it?

Answer 1

- (IBAction)upload:(id)sender {
  imagePickerViewController = [[UIImagePickerController alloc] init];
    imagePickerViewController.delegate = self;
    imagePickerViewController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    [self presentModalViewController:imagePickerViewController animated:YES];

}


  - (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
    {
        requestType = 8;
        [picker dismissModalViewControllerAnimated:YES];
        // Access the uncropped image from info dictionary
        int seconds = [[NSDate date] timeIntervalSince1970];
        NSString *imageName = [NSString stringWithFormat:@"%d.png", seconds];
        UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
        NSURL *url = [NSURL URLWithString:yourUploadLink];
        ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];


        NSData* imageData=UIImageJPEGRepresentation(image, 1.0);
        if (imageData) {
            NSLog(@"imageData exists");
        }
        [request setData:imageData withFileName:imageName andContentType:@"image/png" forKey:@"userfile"];
        [request setDelegate:self];
        [request startAsynchronous];

    //    [picker release];
    }

Answer 2

You need to do some research before you ask, but I'll direct you to look at the UIImagePickerController :

https://developer.apple.com/library/ios/#documentation/uikit/reference/UIImagePickerController_Class/UIImagePickerController/UIImagePickerController.html

Answer 3

Yes, there is. You only have to build the app using: UIImagePicker for image selection (camera or library) and NSURLConnection for your communications tasks with your services.

You can start here: Apple iOS Dev Library