How to make an intent and launch an activity in onActivityResult()?

Question

I am trying to launch an activity after a user has selected a photo. I was trying to do this:

        uploadImageButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent selectImageIntent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
                selectImageIntent.setType("image/*");

                startActivityForResult(selectImageIntent, 1);

                Intent goToActivityIntent = new Intent(view.getContext(), SendPhotoChangeActivity.class);
                goToActivityIntent.putExtra("email", email);
                goToActivityIntent.putExtra("donorEmail", donorEmail);
                goToActivityIntent.putExtra("orderId", orderId);
                goToActivityIntent.putExtra("uriString", uriString);

                view.getContext().startActivity(goToActivityIntent);
            }
        });

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

        if (resultCode == Activity.RESULT_OK && data != null) {
            uriString = data.getData().toString();
        }
    }

But I realised that with this code, the code for launching the activity (SendPhotoChangeActivity) executes before the user selects the image, crashing the app because the uriString variable is null.

I tried simply copy/pasting the code into onActivityResult(), but the view variable (in view.getContext()) was, of course, not recognized in onActivityResult().

I am thinking of simply replacing view.getContext() by getApplicationContext() in onActivityResult(). Is this the right thing to do? If not, please tell me how I can start an activity in onActivityResult().

Answer 1

If you are in Activity then you can just use this as Context

 Intent goToActivityIntent = new Intent(this, SendPhotoChangeActivity.class);

If you are in a Fragment then you can obtain Context by calling getContext()

Intent goToActivityIntent = new Intent(getContext(), SendPhotoChangeActivity.class);

And use that code inside onActivityResult() as you were trying to.

Answer 2

set an integer code for the act of selecting a picture like REQUEST_CODE_TAKE_PICTURE so you know that has happened, this works ok in Kotlin, I assume that works as well with java:

if (requestCode == REQUEST_CODE_TAKE_PICTURE && resultCode == Activity.RESULT_OK) {

  Intent goToActivityIntent = new Intent(view.getContext(),SendPhotoChangeActivity.class);
            goToActivityIntent.putExtra("email", email);
            goToActivityIntent.putExtra("donorEmail", donorEmail);
            goToActivityIntent.putExtra("orderId", orderId);
            goToActivityIntent.putExtra("uriString", uriString);

            view.getContext().startActivity(goToActivityIntent);
        if (data == null) {
            //Display an error
            println("error accuered at onActivityResult ")
            return
        }

Answer 3

Have you tried this simpler one:

uploadImageButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent selectImageIntent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
                selectImageIntent.setType("image/*");

                startActivityForResult(selectImageIntent, 1);
            }
        });

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

        if (resultCode == Activity.RESULT_OK && data != null) {
            uriString = data.getData().toString();
             Intent goToActivityIntent = new Intent(view.getContext(), SendPhotoChangeActivity.class);
                goToActivityIntent.putExtra("email", email);
                goToActivityIntent.putExtra("donorEmail", donorEmail);
                goToActivityIntent.putExtra("orderId", orderId);
                goToActivityIntent.putExtra("uriString", uriString);

                startActivity(goToActivityIntent);
        }
    }

Just call

startActivity(goToActivityIntent);

to call the activity.

This assumes you are calling it from your activity or fragment. If this doesn't meet your requirements, let me know. There are other ways to implement this.