android browse file intent with defined extension
android, file-extension, intentfilter
Solution
I want file manager to show only txt files to user, so user couldn't choose file with wrong extension
That is not literally possible. You are welcome to use a MIME type of `text/plain` instead of `*/*`, but:
- There is no guarantee that this will only return files with a `.txt` extension
- There is no guarantee that there is any app on the device that can handle `ACTION_GET_CONTENT` of that MIME type
- There is no guarantee that any "file manager" will honor your MIME type; they may elect to display all files anyway
Problem
I need to create intent that will open file manager (if any installed) and I want file manager to show only txt files to user, so user couldn't choose file with wrong extension. ``` private static final int FILE_SELECT_CODE = 0; private void showFileChooser() { Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType("*/*"); intent.addCategory(Intent.CATEGORY_OPENABLE); try { startActivityForResult( Intent.createChooser(intent, "Select txt file"), FILE_SELECT_CODE); } catch (android.content.ActivityNotFoundException ex) { // Potentially direct the user to the Market with a Dialog Toast.makeText(this.getActivity(), "Please install a File Manager.", Toast.LENGTH_SHORT).show(); } } public void onActivityResult(int requestCode, int resultCode, Intent data) { switch (requestCode) { case FILE_SELECT_CODE: if (resultCode == Activity.RESULT_OK) { // Get the Uri of the selected file Uri uri = data.getData(); String path = uri.getPath(); input = new File(path); try { txtParser = new TxtFileParser(input); } catch (FileNotFoundException e) { /* Exception handler must be here! */ } } break; } super.onActivityResult(requestCode, resultCode, data); } ``` I managed to do this. But I don't know how to define txt extensions.