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From "Jason Ginchereau (JIRA)" <>
Subject [jira] [Commented] (CB-10425) Android External Storage directories not writable even with permissions
Date Tue, 01 Mar 2016 23:33:18 GMT


Jason Ginchereau commented on CB-10425:

Looking at the above code, there appears to be a mistaken assumption that the "root" of the
persistent storage filesystem is going to be at "/", when actually it is something like "/data/data/<appid>/files/files".
So, concatenating the externalApplicationStorageDirectory onto that yields a deep directory
structure that doesn't exist. The NO_MODIFICATION_ALLOWED_ERR code is used whenever the target
directory can't be created.

To fix this code, don't use the FS root, instead use resolveLocalFileSystemURL(cordova.file.externalApplicationStorageDirectory)
to get the target directory entry.

> Android External Storage directories not writable even with permissions
> -----------------------------------------------------------------------
>                 Key: CB-10425
>                 URL:
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: Plugin File
>         Environment: Phonegap using plugin cordova-plugin-dialogs
>            Reporter: Ryan Mark O'Connor
>              Labels: Android, triaged, wfc
>   Original Estimate: 4h
>  Remaining Estimate: 4h
> Using latest phonegap and cordova-plugin-dialogs, checked the following line is present
in android xml:
> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
> Trying to execute the following code:
>     var dstDir = cordova.file.externalApplicationStorageDirectory.replace("file://",
>     directory.copyTo(root, dstDir, function() { alert('Export successful. Your exported
photos can be found in ' + dstDir); }, errorHandler);
> The error handler is called with error code 6: FileError.NO_MODIFICATION_ALLOWED_ERR
> This also occurs if trying to use the external storage root as the destination directory.
How can I get it to work? The value of dstDir on a real android tablet is:
>     /storage/emulated/0/Android/data/org.winston.photoarchiver/

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