Camera Intent, FileUriExposedException, saving image in storage and retrieving the image bitmap and file path

Question

On android devices below Nougat I have no problem saving images in the device's external storage and then storing the file path and displaying the image with Picasso.

However when tested on a Nougat device, I started getting FileUriExposedException whenever I start the camera intent.

I added fileprovider in manifest and also added a filepaths.xml

Manifest.xml:

<provider
        android:authorities="${applicationId}.fileprovider"
        android:exported="false"
        android:grantUriPermissions="true"
        android:name="android.support.v4.content.FileProvider">

        <meta-data android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@xml/filepaths" />

    </provider>

filepaths.xml:

<paths>
<external-path name="mediaimages" path="." />
</paths>

Here's my code

MainActivity.java

 Intent takePicture = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);

                            String authorities = getPackageName() + ".fileprovider";

                            File image = getTempFile(AddListingPage2Activity.this);
                            try {
                                image.createNewFile(); //Getting ignore warning
                            } catch (IOException e) {
                                e.printStackTrace();
                            }

                            Uri imageUri = FileProvider.getUriForFile(AddListingPage2Activity.this, authorities, image);
                            mImageFileUri = imageUri;

                            takePicture.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);

                            startActivityForResult(takePicture, CAMERA_REQ);

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

        switch (requestCode) {
           case CAMERA_REQ:
            if (resultCode == RESULT_OK) {
              //How to get bitmap and create file to store in storage
                 Bitmap bitmap = null;
                 bitmap = BitmapFactory.decodeFile(mImageFileUri.getPath()); //returns null

                try {
                    bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), mImageFileUri); //returns null as well
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            break;

}

private File getTempFile(Context context) {
        final File path = new File(Environment.getExternalStorageDirectory(), context.getPackageName());
        if (!path.exists()) {
            path.mkdir(); //Getting ignored warning
        }
        return new File(path, "myImage.jpg");
    }

How do I save the image file and retrieve the file path in OnActivityResult?

Answer 1

I figured out why the camera app was unable to save the image. The app was supposed to save an image in ./packagename/myImage.jpg but myImage.jpg was created as a directory. After I deleted the folder and tried running the app, I was finally able to save the image.