Android: Failed to ensure directory

android storage
iroiroys picture iroiroys · Oct 27, 2015 · Viewed 23.3k times · Source

I have been using "Environment.getExternalStorage()" to store and manage files. And there is no warning message from logcat with that method and works greatly fine.

But, My project needs to use method "Context.getExternalFilesDir(String type)" and there is a warning message

ContextImpl:Failed to ensure directory: /storage/external_SD/Android/data/(package name)/files

Fortunately that File object works fine(reading or write or making folder works, too).

But I want to know how to resolve that warning message. Do I miss something?

Answer

Hongji Song picture Hongji Song · Dec 21, 2016

You should know how the warning message comes up.

The getExternalFilesDir(String type) will call getExternalFilesDirs(String type) (notice the 's' at the final of the second method name).

The getExternalFilesDirs(String type) will find all dirs of the type, and calls ensureDirsExistOrFilter() at the end to ensure the directories exist.

If the dir can't be reached, it will print a warning!

Log.w(TAG, "Failed to ensure directory: " + dir);
dir = null;

So, if your device has two sdcard paths, it will produce two dirs. If one is not available, the warning will come up.

The conclusion is the warning does not need to be fixed.

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