I would like my app to archive the application DB to the SD card. In my code I check if the directory canWrite() exists, and if not, throw an IOException. In this particular instance, I am trying to copy the db file to the root directory on the SD card, but it's throwing an IOException. How can I change the permission on a folder/file to be able to write to it?
Permission to write to the SD card
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2 Answers
You're right that the SD Card directory is /sdcard but you shouldn't be hard coding it. Instead, make a call to Environment.getExternalStorageDirectory() to get the directory:
File sdDir = Environment.getExternalStorageDirectory();
If you haven't done so already, you will need to give your app the correct permission to write to the SD Card by adding the line below to your Manifest:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
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