Android Picasso library, How to add authentication headers?

Question

I have tried setting a custom OkHttpClient with a custom Authenticator, however as the doc says: \"Responds to authentication challenges from the remote web or proxy server.

Answer 1

A simple way like this will keep default OkHttpClient timeout and cache configurations:

private class MyOkHttpDownloader extends OkHttpDownloader {

    public MyOkHttpDownloader(final Context context) {
        super(context);
        getClient().interceptors().add(new Interceptor() {
            @Override
            public Response intercept(Chain chain) throws IOException {
                Request newRequest = chain.request().newBuilder()
                        .addHeader("X-TOKEN", "VAL")
                        .build();
                return chain.proceed(newRequest);
            }
        });
    }
}

Picasso picasso = new Picasso.Builder(context).downloader(new MyOkHttpDownloader(context)).build();