How to get current file name from selected file - Android Studio Tutorials

 on Button Click Event

uploadButton.setOnClickListener(v -> {
    // Open a file picker to choose a PDF file
    Intent intent = new Intent();
    intent.setType("application/pdf");
    intent.setAction(Intent.ACTION_GET_CONTENT);
    startActivityForResult(Intent.createChooser(intent, "Select PDF"), PICK_PDF_REQUEST);
});

Then

// This code should be called when the user has selected a PDF file and the activity result is returned
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == PICK_PDF_REQUEST && resultCode == RESULT_OK && data != null) {
        pdfUri = data.getData();
        String fileName = getFileNameFromUri(this, pdfUri);

        if (fileName != null) {
            // Do something with the selected file name
            //Log.d(TAG, "Selected PDF file name: " + fileName);
            Toast.makeText(this, "Selected PDF file name: " + fileName, Toast.LENGTH_SHORT).show();
        }
    }
}

// This is the same method as the one I provided in my previous response
private String getFileNameFromUri(Context context, Uri uri) {
    String fileName = null;
    String[] projection = {MediaStore.Images.Media.DISPLAY_NAME};
    ContentResolver contentResolver = context.getContentResolver();
    Cursor cursor = contentResolver.query(uri, projection, null, null, null);
    if (cursor != null && cursor.moveToFirst()) {
        int columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DISPLAY_NAME);
        fileName = cursor.getString(columnIndex);
        cursor.close();
    }
    return fileName;
}

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