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androidandroid-intentandroid-camera-intentnexus-7

android android.provider.MediaStore.ACTION_VIDEO_CAPTURE return null onActivityResult with nexus 7


I am using intent for record video.

so i use following code on recordVideo button's click

Videofilepath = "";
Intent intent = new Intent(android.provider.MediaStore.ACTION_VIDEO_CAPTURE);
startActivityForResult(intent,REQUEST_VIDEO_CAPTURED);

and in onActivityResult

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

        if (resultCode == Activity.RESULT_OK) {
            switch (requestCode) {
            case IMAGE_PICK:
                this.imageFromGallery(resultCode, data);
                break;
            case IMAGE_CAPTURE:
                this.imageFromCamera(resultCode, data);
                break;
            case REQUEST_VIDEO_CAPTURED:
                this.videoFromCamera(resultCode, data);

                break;
            default:
                break;
            }
        }
    }


private void videoFromCamera(int resultCode, Intent data) {
        uriVideo = data.getData();


        uploadedFileName="";
        Constant.IS_FILE_ATTACH = true;

        Toast.makeText(PDFActivity.this, uriVideo.getPath(), Toast.LENGTH_LONG)
        .show();
        String[] filePathColumn = { MediaStore.Video.Media.DATA };

        Cursor cursor = getContentResolver().query(uriVideo, filePathColumn,
                null, null, null);
        cursor.moveToFirst();

        int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
        String filePath = cursor.getString(columnIndex);
        Videofilepath = filePath;
        System.out.println("Videofilepath filepath from camera : "
                + Videofilepath);
        cursor.close();
        File f = new File(filePath);
        System.out.println("file created ? : " + f.exists());

        Bitmap bMap = null;
        do {
            try {
                // Simulate network access.
                Thread.sleep(3000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        } while (!f.exists());
        bMap = ThumbnailUtils.createVideoThumbnail(filePath,
                MediaStore.Video.Thumbnails.MICRO_KIND);
        do {
            try {
                // Simulate network access.
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        } while (bMap == null);
        imageOrVideo = "video";
        attachmentvalue.setImageBitmap(bMap);
    }

This code is working fine with samsung galaxy Tab. But not working with Nexus 7. May be Nexus 7 have front camera. but i got resultant data intent is null onActivityResult.

so in my Logcat i got the following exception :-

08-08 12:51:31.160: E/AndroidRuntime(10899): FATAL EXCEPTION: main
08-08 12:51:31.160: E/AndroidRuntime(10899): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=200, result=-1, data=Intent {  }} to activity {com.example.activity/com.example.PDFActivity}: java.lang.NullPointerException

Solution

  • Finally I resolved this issue. Nexus 7 Stores the videos in DCIM directory but onActivityResults it returns null. Its an documented issue with Nexus 7 device.

    so fix this issue with intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
    the code is as :-

    code on record button click:-

      intent = new Intent(android.provider.MediaStore.ACTION_VIDEO_CAPTURE);    
       fileUri = getOutputMediaFile(MEDIA_TYPE_VIDEO);  // create a file to save the video in specific folder (this works for video only)
        intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
        intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1); // set the video image quality to high
    
        // start the Video Capture Intent
        startActivityForResult(intent, REQUEST_VIDEO_CAPTURED_NEXUS);
    

    code inside switch - case block of onActivityResult :-

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    
            if (resultCode == Activity.RESULT_OK) {
                switch (requestCode) {
        case REQUEST_VIDEO_CAPTURED_NEXUS:
        this.videoFromCameraNexus(resultCode, data);
        break;
    
    default:
                    break;
                }
            }
        }
    

    // videoFromCameraNexus method

    private void videoFromCameraNexus(int resultCode, Intent data) {
    
            if(fileUri != null) {
                Log.d(TAG, "Video saved to:\n" + fileUri);
                Log.d(TAG, "Video path:\n" + fileUri.getPath());
                Log.d(TAG, "Video name:\n" + getName(fileUri)); 
        // use uri.getLastPathSegment() if store in folder
        //use the file Uri.
            }
        }
    

    Get the output Media file uri with the following Method

    public Uri getOutputMediaFile(int type)
        {
            // To be safe, you should check that the SDCard is mounted
    
            if(Environment.getExternalStorageState() != null) {
                // this works for Android 2.2 and above
                File mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES), "SMW_VIDEO");
    
                // This location works best if you want the created images to be shared
                // between applications and persist after your app has been uninstalled.
    
                // Create the storage directory if it does not exist
                if (! mediaStorageDir.exists()) {
                    if (! mediaStorageDir.mkdirs()) {
                        Log.d(TAG, "failed to create directory");
                        return null;
                    }
                }
    
                // Create a media file name
                String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
                File mediaFile;
               if(type == MEDIA_TYPE_VIDEO) {
                    mediaFile = new File(mediaStorageDir.getPath() + File.separator +
                    "VID_"+ timeStamp + ".mp4");
                } else {
                    return null;
                }
    
                return Uri.fromFile(mediaFile);
            }
    
            return null;
        }
    

    Its works for me.