问题
Background
Starting from API 21 (Lollipop), apps can get a special "permission" to modify real SD-cards, as shown on previous posts I've written (here and here).
The problem
I can delete files, and I can also create them, but I can't find a way to perform other basic file operations:
- read, write, using InputStream and OutputStream
- move files.
- create a folder and not just a file
- rename a file
- get file info (recent updated,etc...)
- share/open the file via other apps.
- other operations I might have forgot about.
The question
How do I get those features? Surely it's possible to perform basic read and write, for example...
回答1:
Using FileUilts for Lollipop gives you most of those options, have you seen this: https://github.com/jeisfeld/Augendiagnose/blob/master/Augendiagnose/src/de/eisfeldj/augendiagnose/util/imagefile/FileUtil.java ?
(I could not add a comment)
来源：https://stackoverflow.com/questions/32019734/how-to-perform-basic-operations-on-files-using-documentfile-api