Question

我想通过我的iphone应用程序中的前置摄像头以编程方式拍照我不希望用户选择或与图像选择器进行任何交互..只是想拍摄图像并将其保存在文档中......这可能吗？

Answer 1

我可以从您的问题中了解到，AV Foundation就是您所需要的。看看Apple的这个演示源：AVCam

Answer 2

编辑：我的不好，似乎你可以从AVCaptureSession那样做。虽然我无法理解为什么这是可能的。似乎是对我滥用的潜在理由。

原文（错误）答案：不，无论是前置摄像头还是后置摄像头，都无法在没有用户交互的情况下拍摄照片。

Answer 3

试试这个 -

   - (IBAction) scanButtonTapped
          {
         // ADD: present a barcode reader that scans from the camera feed
            ZBarReaderViewController *reader = [ZBarReaderViewController new];
            reader.readerDelegate = self;
             reader.supportedOrientationsMask = ZBarOrientationMaskAll;

              ZBarImageScanner *scanner = reader.scanner;
           // TODO: (optional) additional reader configuration here

          // EXAMPLE: disable rarely used I2/5 to improve performance
               [scanner setSymbology: ZBAR_I25
               config: ZBAR_CFG_ENABLE
                   to: 0];

          // present and release the controller
               [self presentModalViewController: reader
                         animated: YES];
               [reader release];
    }
    - (void) imagePickerController: (UIImagePickerController*) reader
       didFinishPickingMediaWithInfo: (NSDictionary*) info
        { 
          // ADD: get the decode results
             id<NSFastEnumeration> results =
               [info objectForKey: ZBarReaderControllerResults];
               ZBarSymbol *symbol = nil;
               for(symbol in results)
                   // EXAMPLE: just grab the first barcode
                      break;

                   // EXAMPLE: do something useful with the barcode data
                      resultText.text = symbol.data;
                      bid.text=symbol.data;

                   // EXAMPLE: do something useful with the barcode image
                      resultImage.image =
                      [info objectForKey: UIImagePickerControllerOriginalImage];

                   // ADD: dismiss the controller (NB dismiss from the *reader*!)
                      [reader dismissModalViewControllerAnimated: YES];
                 }

iPhone：以编程方式使用前置摄像头拍照

3 个答案: