Load, save and use of authentication data in Box Android API

Question

I\'ve been recently trying to implement Box in my Android app. I know how to launch the authentication activity and get BoxAndroidClient object ready to operate on it, but I

Answer 1

This is my way to handle this find below my PreferencesUtil class.

package com.omt.omtboxapi;

import java.util.HashMap;
import java.util.Map;

import android.content.Context;
import android.content.SharedPreferences;

import com.box.boxjavalibv2.dao.BoxOAuthToken;

package com.omt.omtboxapi;

public class PreferencesUtil {

private static PreferencesUtil preferencesUtil;

private PreferencesUtil() {

}

public static PreferencesUtil getInstance() {

    if (preferencesUtil == null) {

        synchronized (PreferencesUtil.class) {

            if (preferencesUtil == null) {
                preferencesUtil = new PreferencesUtil();
            }

        }

    }

    return preferencesUtil;
}

public BoxOAuthToken getAuthToken(Context context) {
    BoxOAuthToken authToken = null;
    SharedPreferences preferences = context.getSharedPreferences(
            "OMT_BOX_SHARED", Context.MODE_PRIVATE);
    if (!preferences.getBoolean("IS_NEW", true)) {

        Map map = new HashMap();

        map.put(BoxOAuthToken.FIELD_ACCESS_TOKEN,
                preferences.getString(BoxOAuthToken.FIELD_ACCESS_TOKEN, ""));
        map.put(BoxOAuthToken.FIELD_REFRESH_TOKEN, preferences.getString(
                BoxOAuthToken.FIELD_REFRESH_TOKEN, ""));
        map.put(BoxOAuthToken.FIELD_TOKEN_TYPE,
                preferences.getString(BoxOAuthToken.FIELD_TOKEN_TYPE, ""));
        map.put(BoxOAuthToken.FIELD_EXPIRES_IN,
                preferences.getInt(BoxOAuthToken.FIELD_EXPIRES_IN, 0));
        authToken = new BoxOAuthToken(map);
    }
    return authToken;
}

public void saveAuthToken(BoxOAuthToken authToken, Context context) {
    SharedPreferences preferences = context.getSharedPreferences(
            "OMT_BOX_SHARED", Context.MODE_PRIVATE);
    SharedPreferences.Editor editor = preferences.edit();
    editor.putBoolean("IS_NEW", false);
    editor.putString(BoxOAuthToken.FIELD_ACCESS_TOKEN,
            authToken.getAccessToken());
    editor.putString(BoxOAuthToken.FIELD_REFRESH_TOKEN,
            authToken.getRefreshToken());
    editor.putString(BoxOAuthToken.FIELD_TOKEN_TYPE,
            authToken.getTokenType());
    editor.putInt(BoxOAuthToken.FIELD_EXPIRES_IN, authToken.getExpiresIn());
    editor.commit();
}

}

Now to handle Refresh things below is my approach :

        client.addOAuthRefreshListener(new OAuthRefreshListener() {

            @Override
            public void onRefresh(IAuthData newAuthData) {
                PreferencesUtil.getInstance().saveAuthToken(
                        (BoxOAuthToken) newAuthData, MainActivity.this);
            }
        });

NOTE :

The Keys that I am using in Preference is available in BoxOAuthToken so DO NOT CHANGE IT OTHERWISE YOUR CODE WILL NOT WORK..

THOSE KEYS ARE :

public static final String FIELD_ACCESS_TOKEN = "access_token";
public static final String FIELD_EXPIRES_IN = "expires_in";
public static final String FIELD_TOKEN_TYPE = "token_type";
public static final String FIELD_REFRESH_TOKEN = "refresh_token";