如何以編程方式從圖庫發送照片？

我需要執行「發送照片」功能。我有一個Web服務方法，它將圖像作爲參數。我需要執行以下操作：上的按鈕如何以編程方式從圖庫發送照片？

用戶點擊，然後照片庫打開（也冷靜地執行從相機即相機發送照片打開，用戶使照片然後發送）用戶選擇照片並點擊發送（那麼我的方法應該工作）。

請告訴我有沒有辦法做到這一點？

2012-02-22 Stas

- (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]; 
    }

來源

2012-02-22 08:22:20