如何使用adb将文件复制到可从PC访问的android目录

Question

If you attach android device to PC you can browse files and dirs. It is possible to get this directory using Environment.getExternalStorage() . You can use it from your application and create accessible files and dirs. It works fine.

On my devices this path looks like /storage/emulated/0 and if i try adb push to this directory i will get access denied error. Is it possible to copy files using adb to the same folder as Windows Explorer does?

D:\...\tools>adb push ACCOUNTS.DB /storage/emulated/0
failed to copy 'ACCOUNTS.DB' to '/storage/emulated/0': Permission denied
58969 KB/s (606505 bytes in 0.010s)

I'm implementing automated import/export and i want files to be accessible without adb shell in case anything will go wrong.

Currently using variable $EXTERNAL_STORAGE as workaround, it works for both adb and application.

Device: Asus Fonepad 7, Android 5.0, tried Genymotion Custom Tablet 6.0 - works.

Answer 1

Try to use /sdcard/ . Although it is strongly discouraged to do this in code . It seems to be the only way with adb :

$ adb push somefile /storage/emulated/0/somefile
[100%] /storage/emulated/0/somefile
adb: error: failed to copy 'somefile' to '/storage/emulated/0/somefile': Read-only file system

$ adb push somefile /sdcard/somefile
[100%] /sdcard/somefile

By the way, on my device they don't have the same value : Environment.getExternalStorage() points to /storage/emulated/0/ while /sdcard points to /storage/emulated/legacy .

Answer 2

It's pretty easy, internal storage is unavailable on non-rooted devices. So as was mentioned in bwt answer you just need to push your data to sdcard :

adb push somefile /sdcard/somefile

With retrieving files from your filesystem you'll also have few problems. But with the case of pulling a database from a debug application - you'll just need to change file permission via chmod . Here you have a useful link - XDA guys about adb