Android intent filter: associate app with file extension

Question

I have a custom file type/extension that I want to associate my app with.

As far as I know, the data element is made for this purpose, but I can\'t get it working. h

Answer 1

Read opening file in kotlin:

private fun checkFileOpening(intent: Intent) {
    if (intent.action == Intent.ACTION_VIEW && (intent.scheme == ContentResolver.SCHEME_FILE
                    || intent.scheme == ContentResolver.SCHEME_CONTENT)) {

        val text = intent.data?.let {
            contentResolver.openInputStream(it)?.bufferedReader()?.use(BufferedReader::readText) 
        }
    }
}