Android Question how to find app's folder (android 7+) ?

peacemaker

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Hi, All

There is a task to get files from another app in rooted Android 7. Reading file is tested, it's OK, if the path is known.
But if i have app's package name and the target file name - how to find the file in folders of the app ?
I mean, to find the exact full file path.
 
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teddybear

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Try the path File.DirInternal /data/user/0/packagename/files
 
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peacemaker

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Question is not to try some, but to make an algorithm to find the path correctly, on any rooted device with various drive configurations.
 
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teddybear

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peacemaker said:
Question is not to try some, but to make an algorithm to find the path correctly, on any rooted device with various drive configurations.
Click to expand...
I mean that you can get your app fullpath using File.DirInternal and then replace the packagename substring of the fullpath with the packagename which you want to get file.
 
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peacemaker

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Hmm, indeed:
1) my app in MEMU emulator File.DirInternal gives his own path as "/data/user/0/MYPACKAGE/files"
2) but a file explorer gives the target app as "/storage/emulated/0/Android/data/TARGETPACKAGE/files"

And no folder of my app like "/storage/emulated/0/Android/data/MYPACKAGE/files"
 
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peacemaker

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peacemaker said:
And no folder of my app like "/storage/emulated/0/Android/data/MYPACKAGE/files"
Click to expand...

This path ("/storage/emulated/0/Android/data/MYPACKAGE/files") is got by
B4X: 
Starter.rp.GetSafeDirDefaultExternal("")
 
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teddybear

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/storage/emulated/0/Android/data/MYPACKAGE/files is File.DIrDefaultExternal, if your phone has TF card
 
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peacemaker

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So, this works:
B4X: 
        Dim p As String = Starter.rp.GetSafeDirDefaultExternal("").Replace(Application.PackageName, TARGETPACKAGE) 
        Dim f As List = File.ListFiles(p)

It means that 2 paths can be checked, internal and external.
 
Last edited:
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teddybear

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peacemaker said:
This path ("/storage/emulated/0/Android/data/MYPACKAGE/files") is got by
B4X: 
Starter.rp.GetSafeDirDefaultExternal("")
Click to expand...
If you are not sure which dir the file is in, you can test if it is existed both of internal and external dir
 
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