jp.typosone.android.azarashi.OAuthActivity.java Source code

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Here is the source code for jp.typosone.android.azarashi.OAuthActivity.java

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/*
 * Copyright (C) 2013 Nakasone Tsuyoshi
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package jp.typosone.android.azarashi;

import android.app.Activity;
import android.app.LoaderManager;
import android.content.Intent;
import android.content.Loader;
import android.net.Uri;
import android.os.Bundle;

import twitter4j.auth.AccessToken;
import twitter4j.auth.OAuthAuthorization;
import twitter4j.auth.RequestToken;
import twitter4j.conf.Configuration;
import twitter4j.conf.ConfigurationContext;

/**
 * Twitter ?????????
 * <p/>
 * ??URL?????????<br />
 * ??CallbackURL??????????????
 */
public class OAuthActivity extends Activity {
    public static final String CALLBACK_URL = OAuthActivity.class.getPackage().getName() + "://callback";
    private static final int LID_REQ = 0x70000001;
    private static final int LID_ACC = 0x70000002;
    private OAuthAuthorization mOAuth;
    private RequestToken mRequestToken;
    private AccessTokenLoaderCallbacks mAccessCallbacks;

    /**
     * Twitter OAuth ?????????
     * <p/>
     * OAuth ????? RequestToken ??
     * ????AccessToken ??????URL???????
     *
     * @see Activity#onCreate
     */
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Configuration conf = ConfigurationContext.getInstance();
        mOAuth = new OAuthAuthorization(conf);
        RequestTokenLoaderCallbacks mRequestCallbacks = new RequestTokenLoaderCallbacks();
        mAccessCallbacks = new AccessTokenLoaderCallbacks();

        getLoaderManager().initLoader(LID_REQ, null, mRequestCallbacks);
    }

    /**
     * ? Twitter ??????????
     * <p/>
     * Twitter ? URL ??? callbackURL ????
     * IntentFilter ?????????
     * <p/>
     * ??????? AccessToken ? AccessTokenSecret 
     * SharedPreferences ?????
     * <p/>
     *
     * @see #onResume
     */
    @Override
    protected void onNewIntent(Intent intent) {
        super.onNewIntent(intent);

        Bundle args = new Bundle();
        args.putParcelable("intent", intent);
        getLoaderManager().restartLoader(LID_ACC, args, mAccessCallbacks);
    }

    private class RequestTokenLoaderCallbacks implements LoaderManager.LoaderCallbacks<RequestToken> {

        @Override
        public Loader<RequestToken> onCreateLoader(int id, Bundle args) {
            return new RequestTokenTaskLoader(OAuthActivity.this, mOAuth, CALLBACK_URL);
        }

        @Override
        public void onLoadFinished(Loader<RequestToken> loader, RequestToken data) {
            if (data == null) {
                throw new IllegalStateException("???????");
            }
            getLoaderManager().destroyLoader(loader.getId());

            mRequestToken = data;
            startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(mRequestToken.getAuthorizationURL())));
        }

        @Override
        public void onLoaderReset(Loader<RequestToken> loader) {

        }
    }

    private class AccessTokenLoaderCallbacks implements LoaderManager.LoaderCallbacks<AccessToken> {

        @Override
        public Loader<AccessToken> onCreateLoader(int id, Bundle args) {
            Intent intent = args.getParcelable("intent");
            return new AccessTokenTaskLoader(OAuthActivity.this, intent, mOAuth, mRequestToken, CALLBACK_URL);
        }

        @Override
        public void onLoadFinished(Loader<AccessToken> loader, AccessToken data) {
            TwitterUtils utils = new TwitterUtils(OAuthActivity.this);
            utils.saveAccessToken(data);
        }

        @Override
        public void onLoaderReset(Loader<AccessToken> loader) {

        }
    }
}