I thought this would be easy but as it turns out unfortunately it's not.
What I have:
I have a folder called "myFolder" on my external storage (not sd card because it's a Nexus 4, but that should not be the problem). The folder contains some *.csv
files.
What I want:
I want to write a method which does the following: Show a variety of apps (file browsers) from which I can pick one (see picture). After I click on it, the selected file browser should start and show me the content of "myFolder". No more no less.
My question:
How exactly do I do that? I think I came quite close with the following code, but no matter what I do - and I'm certain that there must be something I didn't get right yet - it always opens only the main folder from the external storage.
public void openFolder() { File file = new File(Environment.getExternalStorageDirectory(), "myFolder"); Log.d("path", file.toString()); Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setDataAndType(Uri.fromFile(file), "*/*"); startActivity(intent); }
Just open it up to browse any area of your local storage or a connected Drive account; you can either use the file type icons at the top of the screen or, if you want to look folder by folder, tap the three-dot menu icon in the upper-right corner and select "Show internal storage" — then tap the three-line menu icon in ...
Intent intent = new Intent(Intent. ACTION_GET_CONTENT); intent. setType("*/*"); Intent i = Intent. createChooser(intent, "View Default File Manager"); startActivityForResult(i, CHOOSE_FILE_REQUESTCODE);
You can use below code to get all images from specific folder. 1) First you need to define File object to get the storage and appened the name of the folder you want to read. File folder = new File(Environment. getExternalStorageDirectory().
Right-click on a file or directory to create a new file or directory, save the selected file or directory to your machine, upload, delete, or synchronize. Double-click a file to open it in Android Studio. Android Studio saves files you open this way in a temporary directory outside of your project.
This should help you:
Uri selectedUri = Uri.parse(Environment.getExternalStorageDirectory() + "/myFolder/"); Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(selectedUri, "resource/folder"); if (intent.resolveActivityInfo(getPackageManager(), 0) != null) { startActivity(intent); } else { // if you reach this place, it means there is no any file // explorer app installed on your device }
Please, be sure that you have any file explorer app installed on your device.
EDIT: added a shantanu's recommendation from the comment.
LIBRARIES: You can also have a look at the following libraries https://android-arsenal.com/tag/35 if the current solution doesn't help you.
I finally got it working. This way only a few apps are shown by the chooser (Google Drive, Dropbox, Root Explorer, and Solid Explorer). It's working fine with the two explorers but not with Google Drive and Dropbox (I guess because they cannot access the external storage). The other MIME type like "*/*"
is also possible.
public void openFolder(){ Intent intent = new Intent(Intent.ACTION_GET_CONTENT); Uri uri = Uri.parse(Environment.getExternalStorageDirectory().getPath() + File.separator + "myFolder" + File.separator); intent.setDataAndType(uri, "text/csv"); startActivity(Intent.createChooser(intent, "Open folder")); }
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