Android assets folder is empty

Question

I want to list folders and files in asset folder, but I find out i empty. I searched for the answer but it did not helped, on google, stackoverflow and many others.

I tried many approaches with AssetManager and only that gave some output was:

getAssets().list("/");

But assets folder it listed was empty...

I run application from eclipse (device on usb). Can anyone tell me what I do wrong? I have feeling that assets folder I open is not form my application...

Thanks in advance!

Answer 1

I was using getAssets().list("/"); and it returned a list of the files in the root of the app:

D/        (25498): Listing files in /
D/        (25498): AndroidManifest.xml
D/        (25498): META-INF
D/        (25498): assets
D/        (25498): classes.dex
D/        (25498): lib
D/        (25498): res
D/        (25498): resources.arsc

Then I tried listing "/assets" but it was always empty. Then I found out that a relative path is needed and / for the root folder can not be used.

getAssets().list(""); lists the files in the root of the assets folder.

Answer 2

Try this:

AssetManager assetManager = appContext.getAssets();
String[] filelist = assetManager.list("");

Answer 3

You can get the assets files like this:

try {
    Resources res = getResources();
    AssetManager am = res.getAssets();
    String fileList[] = am.list("/");
} catch (IOException e) {
    e.printStackTrace();
}

Answer 4

I see you were using Eclipse, I switched to Android Studio but had the same problem. Comparing many answers led me to this:

https://stackoverflow.com/a/33542563/524355

The asset folder is "next" to the res folder (in AS, there is even a wizard for it). I put it manually "into" the res folder that's why asset folder was gone/not compiled into the apk! If this is done by the build tools that you use in Eclipse (ADT) you might have suffered from the same situation.