如何旋转从相机或画廊拍摄的图像？

Question

I am capturing image from camera and selecting image from gallery. In samsung devices the images gets rotate after captured.

I want rotate image to straight if they are rotated.

I tried to do it but its not working.

   private void onCaptureImageResult(Intent data) {
    try {

    Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    thumbnail.compress(Bitmap.CompressFormat.PNG, 100, bytes);

    File destination = new File(Environment.getExternalStorageDirectory(),
            System.currentTimeMillis() + ".png");

    FileOutputStream fo;

        destination.createNewFile();
        fo = new FileOutputStream(destination);
        fo.write(bytes.toByteArray());
        fo.close();


    profileImage = destination;

    Bitmap rotatedBitmap = modifyOrientation(thumbnail, profileImage.getAbsolutePath());

    ByteArrayOutputStream stream1 = new ByteArrayOutputStream();
    rotatedBitmap.compress(Bitmap.CompressFormat.PNG, 100, stream1); //replace 100 with desired quality percentage.
    byte[] byteArray1 = stream1.toByteArray();

    File tempFile1 = File.createTempFile("temp", null, getCacheDir());
    FileOutputStream fos1 = new FileOutputStream(tempFile1);
    fos1.write(byteArray1);


    if (rotatedBitmap != null) {
        profileImageView.setImageBitmap(rotatedBitmap);
        profileImage = tempFile1;
    } else {
        profileImageView.setImageBitmap(thumbnail);
        profileImage = destination;
    }

}
    catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

}

@SuppressWarnings("deprecation")
private void onSelectFromGalleryResult(Intent data) {

    Bitmap bm=null;
    if (data != null) {
        try {
            bm = MediaStore.Images.Media.getBitmap(getApplicationContext().getContentResolver(), data.getData());

        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    bm.compress(Bitmap.CompressFormat.PNG, 100, stream); //replace 100 with desired quality percentage.
    byte[] byteArray = stream.toByteArray();

    try {

        File tempFile = File.createTempFile("temp",null, getCacheDir());
        FileOutputStream fos = new FileOutputStream(tempFile);
        fos.write(byteArray);

        profileImage = tempFile;

        Bitmap rotatedBitmap = modifyOrientation(bm,profileImage.getAbsolutePath());

        ByteArrayOutputStream stream1 = new ByteArrayOutputStream();
        bm.compress(Bitmap.CompressFormat.PNG, 100, stream1); //replace 100 with desired quality percentage.
        byte[] byteArray1 = stream1.toByteArray();

        File tempFile1 = File.createTempFile("temp",null, getCacheDir());
        FileOutputStream fos1 = new FileOutputStream(tempFile1);
        fos1.write(byteArray1);



        if(rotatedBitmap != null) {
            profileImageView.setImageBitmap(rotatedBitmap);
            profileImage = tempFile1;
        }
        else {
            profileImageView.setImageBitmap(bm);
            profileImage = tempFile;
        }
    }

    catch (IOException e)
    {

    }

}

EDIT:

I tried to use camera intent now and get path from intent still its not working.

private void onCaptureImageResult(Intent data) {
    try {

    Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    thumbnail.compress(Bitmap.CompressFormat.PNG, 100, bytes);

    File destination = new File(Environment.getExternalStorageDirectory(),
            System.currentTimeMillis() + ".png");

    FileOutputStream fo;

        destination.createNewFile();
        fo = new FileOutputStream(destination);
        fo.write(bytes.toByteArray());
        fo.close();
        Bitmap rotatedBitmap = null;

   // profileImage = destination;

        Uri tempUri = getImageUri(getApplicationContext(),thumbnail);

        // CALL THIS METHOD TO GET THE ACTUAL PATH
        File finalFile = new File(getRealPathFromURI(tempUri));

        ExifInterface ei = new ExifInterface(finalFile.getAbsolutePath());
        int orientation = ei.getAttributeInt(ExifInterface.TAG_ORIENTATION,
                ExifInterface.ORIENTATION_UNDEFINED);

        switch(orientation) {
            case ExifInterface.ORIENTATION_ROTATE_90:
                rotateImage(thumbnail, 90);
                break;
            case ExifInterface.ORIENTATION_ROTATE_180:
                rotateImage(thumbnail, 180);
                break;
            case ExifInterface.ORIENTATION_ROTATE_270:
                rotateImage(thumbnail, 270);
                break;
            case ExifInterface.ORIENTATION_NORMAL:
            default:
                break;
        }

    if (rotatedBitmap != null) {

        profileImageView.setImageBitmap(rotatedBitmap);

        ByteArrayOutputStream stream1 = new ByteArrayOutputStream();
        rotatedBitmap.compress(Bitmap.CompressFormat.PNG, 100, stream1); //replace 100 with desired quality percentage.
        byte[] byteArray1 = stream1.toByteArray();

        File tempFile1 = File.createTempFile("temp", null, getCacheDir());
        FileOutputStream fos1 = new FileOutputStream(tempFile1);
        fos1.write(byteArray1);

        profileImage = tempFile1;
    } else {
        profileImageView.setImageBitmap(thumbnail);
        profileImage = destination;
    }

}
    catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
   }


public Uri getImageUri(Context inContext, Bitmap inImage) {
    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    inImage.compress(Bitmap.CompressFormat.PNG, 100, bytes);
    String path = MediaStore.Images.Media.insertImage(inContext.getContentResolver(), inImage, "Title", null);
    return Uri.parse(path);
}

public String getRealPathFromURI(Uri uri) {
    Cursor cursor = getContentResolver().query(uri, null, null, null, null);
    cursor.moveToFirst();
    int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
    return cursor.getString(idx);
}



   @Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (resultCode == Activity.RESULT_OK) {
        if (requestCode == SELECT_FILE)
            onSelectFromGalleryResult(data);
        else if (requestCode == REQUEST_CAMERA)
            onCaptureImageResult(data);
    }
}

What's wrong now?

Can anyone help please? What's going wrong? Thank you..

Answer 1

profileImage = destination;

You took the thumbnail which is a Bitmap and wrote it to file.

Then after that you used that file to extract an exifinterface.

But bitmaps do not contain exif information. And hence your file does not either.

So your orientation is always null;

If you had used profileImage to launch the camera intent then leave it as is.

So remove above statement.

Answer 2

public int getCameraPhotoOrientation(Context context, Uri imageUri, String imagePath){
 int rotate = 0;
try {
    context.getContentResolver().notifyChange(imageUri, null);
    File imageFile = new File(imagePath);

    ExifInterface exif = new ExifInterface(imageFile.getAbsolutePath());
    int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);

    switch (orientation) {
    case ExifInterface.ORIENTATION_ROTATE_270:
        rotate = 270;
        break;
    case ExifInterface.ORIENTATION_ROTATE_180:
        rotate = 180;
        break;
    case ExifInterface.ORIENTATION_ROTATE_90:
        rotate = 90;
        break;
    }

    Log.i("RotateImage", "Exif orientation: " + orientation);
    Log.i("RotateImage", "Rotate value: " + rotate);
} catch (Exception e) {
    e.printStackTrace();
}
return rotate;
}

And put this code in Activity result method and get value to rotate image...

String selectedImage = data.getData();
        String[] filePathColumn = {MediaStore.Images.Media.DATA};

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

        int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
        filePath = cursor.getString(columnIndex);
        cursor.close();

        int rotateImage = getCameraPhotoOrientation(MyActivity.this, selectedImage, filePath);

Rotate Bitmap using this

 public static Bitmap rotate(Bitmap bitmap, float degrees) {
   Matrix matrix = new Matrix();
   matrix.postRotate(degrees);
   return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
  }