使用哪种Android意图在Dropbox应用中获取“保存到设备”行为？

Question

Currently I am able to implement store and retrieve file from Google Drive without issue but I want to add an additional functionality which is to save the file directly to local storage.

In dropbox app, if you try to export a file and in the chooser select 'Save to device', it will show something like below:

At first I thought they created the activity themselves but it looks very similar to the ACTION_GET_CONTENT intent that I am using.. My code is just something like:

 Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
 intent.setType("application/*");
 startActivityForResult(intent, 0);

which show something like below:

That makes me think that Dropbox app must be using an Android intent to save file to local storage like ACTION_ADD_CONTENT or something.. Or am I wrong?

Thanks.

Answer 1

Kuffs has it right — you are seeing the UI for the Storage Access Framework. Specifically, for a "save as" sort of feature, use ACTION_CREATE_DOCUMENT . You will get back a content: Uri for the location that the user chose, and you can use a ContentResolver and openOutputStream() to write your data to that location.