Question

I’m trying to access my application’s assets from another class file. Obviously this.getAssets() doesn’t work, so I tried passing the Context to the class as a parameter. I used a variety of ‘contexts’ – getBaseContext(), getApplicationContext(), this, but they all result in a NullPointerException.

Here is the code I am using. It runs fine inside the Activity, but I can’t work out how to make it work in an external class.

private String pickText(){
    String line = null;
    try {
        AssetManager am = this.getAssets();
        InputStream fstream = am.open("plan.txt");
        DataInputStream in = new DataInputStream(fstream);
        BufferedReader br = new BufferedReader(new InputStreamReader(in));
        line = br.readLine();
        for(int i = 1; i < id && line != null; i++){
            line = br.readLine();
        }
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return line;
}

Any ideas?
Thanks.

Answer 1

Pass in the activity itself as the parameter, meaning this from your Activty.