How to pass a growing array to onSaveInstanceState

[L Vasquez]

When I take the 4 pictures (see the loop in dispatchTakePhotoIntent) and add each to the Uri Arraylist (see last line in onActivityResult); the array comes back to me blank. I was wondering if this has to do with the rotating screen when taking a picture (the program is in landscape). I understand that onSaveInstanceState could fix this. How do I pass the ArrayList<Uri> to the saveInstanceState?

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
            if (resultCode == RESULT_OK) {
                if (requestCode == REQUEST_TAKE_PHOTO) {
                    final boolean isCamera;
                    if (data == null) {
                        isCamera = true;
                    } else {
                        final String action = data.getAction();
                        if (action == null) {
                            isCamera = false;
                        } else {
                            isCamera = action.equals(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
                        }
                    }
                    Uri selectedImageUri;
                    if (isCamera) {
                        selectedImageUri = outputFileUri;
                    } else {
                        selectedImageUri = data == null ? null : data.getData();
                    }
                   // mainView.setImageURI(selectedImageUri);
                    happyList.add(pictureCounter, selectedImageUri);
                }
            }
        } 

and my takePhotoIntent is:
   

    private void dispatchTakePictureIntent() {
        pictureCounter = 0;
        happyList = new ArrayList<>();
        for(int i = 0; i < 4; i++) {
            pictureCounter++;
            Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
                // Create the File where the photo should go
                File photoFile = null;
                try {
                    photoFile = createImageFile();
                    outputFileUri = Uri.fromFile(photoFile);
                } catch (IOException ex) {
                    // Error occurred while creating the File
                }
                // Camera.
                final List<Intent> cameraIntents = new ArrayList<Intent>();
                final Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
                final PackageManager packageManager = getPackageManager();
                final List<ResolveInfo> listCam = packageManager.queryIntentActivities(captureIntent, 0);
                for (ResolveInfo res : listCam) {
                    final String packageName = res.activityInfo.packageName;
                    final Intent intent = new Intent(captureIntent);
                    intent.setComponent(new ComponentName(res.activityInfo.packageName, res.activityInfo.name));
                    intent.setPackage(packageName);
                    intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photoFile));
                    cameraIntents.add(intent);
                }
                // Filesystem.
                final Intent galleryIntent = new Intent();
                galleryIntent.setType("image/*");
                galleryIntent.setAction(Intent.ACTION_GET_CONTENT);
                // Chooser of filesystem options.
                final Intent chooserIntent = Intent.createChooser(galleryIntent, "Select Source");
                // Add the camera options.
                chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, cameraIntents.toArray(new Parcelable[cameraIntents.size()]));
                startActivityForResult(chooserIntent, REQUEST_TAKE_PHOTO);
            }
        }
    }

[Brian Tkatch]

onSaveInstanceState() uses a Bundle object to store data, and that Bundle is sent to OnRestoreInstanceState(). The Bundle has the appropriate methods to store and retrieve an array.

[L Vasquez]

Brian Tkatch wrote:onSaveInstanceState() uses a Bundle object to store data, and that Bundle is sent to OnRestoreInstanceState(). The Bundle has the appropriate methods to store and retrieve an array.

But how about an ArrayList of URIs specifically?

[Brian Tkatch]

L Vasquez wrote:But how about an ArrayList of URIs specifically?

Isn't that parceable? If so, you can use putParcelableArrayList().

[L Vasquez]

Brian Tkatch wrote:

L Vasquez wrote:But how about an ArrayList of URIs specifically?

Isn't that parceable? If so, you can use putParcelableArrayList().

Just like this?

@Override
    public void onSaveInstanceState(Bundle savedInstanceState) {
        savedInstanceState.putParcelableArrayList("happyList", happyList);
        super.onSaveInstanceState(savedInstanceState);
    }

[Brian Tkatch]

L Vasquez wrote:Just like this?

@Override
    public void onSaveInstanceState(Bundle savedInstanceState) {
        savedInstanceState.putParcelableArrayList("happyList", happyList);
        super.onSaveInstanceState(savedInstanceState);
    }

I admit my lack of knowledge here. That definitely looks right though. Now, grab the Bundle from onRestore... and see if you get the array.

Oh, and i don't know if it matters, but i'd put the super first.