Question

我正在使用意图

使用相机活动

MediaStore. INTENT_ACTION_STILL_IMAGE_CAMERA with startactivityforresult

但是当我拍摄照片或视频后按后退键时，我得到 resultcode = 0 和 data = null 。

任何帮助将不胜感激。

Answer 1

您是否尝试使用MediaStore.ACTION_IMAGE_CAPTURE？它对我有用。我可以拍照并获取URI。这是代码

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        String fileName = TravellerUtils.generateUniqueID()
                + IMAGE_FILE_EXT;
        File file = new File(Environment.getExternalStorageDirectory(),
                TravellerConstants.IMAGE_PATH + fileName);
        Uri outputFileUri = Uri.fromFile(file);
        intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);
        startActivityForResult(intent, TAKE_PICTURE);

Answer 2

此意图MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA允许您拍摄多张照片并将其发送到图库，但是，拍摄后无法捕捉到它。它还允许您拍摄视频，但您无法拍摄。

我建议你分别用两种意图拍摄照片和视频。

for Picture：

 Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    File imagesFolder = new File(Environment.getExternalStorageDirectory(), "Camera");
    imagesFolder.mkdirs();
    Random random = new Random();
    int n = random.nextInt(10000);
    File image = new File(imagesFolder, "YourApplication" + n + ".jpg");
    photoUri = Uri.fromFile(image);
    intent.putExtra(MediaStore.EXTRA_OUTPUT, photoUri); // set the image file name

    // start the image capture Intent
    startActivityForResult(intent, Constants.CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);

和视频：

 Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);

fileUri = getOutputMediaFileUri(MEDIA_TYPE_VIDEO);  // create a file to save the video
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);  // set the image file name

intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1); // set the video image quality to high

// start the Video Capture Intent
startActivityForResult(intent, CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE);

在Intent MediaStore中使用Camera活动。 INTENT_ACTION_STILL_IMAGE_CAMERA返回Data null

2 个答案: