OnActivityResult method is deprecated, what is the alternative?

Question

Recently I faced the onActivtyResult is deprecated. what should we do for handle it?

any alternative introduced for that?

Answer 1

A basic training is available at developer.android.com.

Here is an example on how to convert the existing code with the new one:

The old way:

    public void openSomeActivityForResult() {
        Intent intent = new Intent(this, SomeActivity.class);
        startActivityForResult(intent, 123);
    }

    @Override
    protected void onActivityResult (int requestCode, int resultCode, Intent data) {
        if (resultCode == Activity.RESULT_OK && requestCode == 123) {
            doSomeOperations();
        }
    }

The new way (Java):

    // You can do the assignment inside onAttach or onCreate, i.e, before the activity is displayed
    ActivityResultLauncher someActivityResultLauncher = registerForActivityResult(
            new ActivityResultContracts.StartActivityForResult(),
            new ActivityResultCallback() {
                @Override
                public void onActivityResult(ActivityResult result) {
                    if (result.getResultCode() == Activity.RESULT_OK) {
                        // There are no request codes
                        Intent data = result.getData();
                        doSomeOperations();
                    }
                }
            });

    public void openSomeActivityForResult() {
        Intent intent = new Intent(this, SomeActivity.class);
        someActivityResultLauncher.launch(intent);
    }

The new way (Kotlin):

var resultLauncher = registerForActivityResult(StartActivityForResult()) { result ->
    if (result.resultCode === Activity.RESULT_OK) {
        // There are no request codes
        val data: Intent? = result.data
        doSomeOperations()
    }
}

fun openSomeActivityForResult() {
    val intent = Intent(this, SomeActivity::class.java)
    resultLauncher.launch(intent)
}