Android Open Source - EverToDo Dropbox Login Async Task

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License

The source code is released under:

GNU General Public License

Java Source Code

/**
 *//from  ww w .  j  a v  a2s  .  c o m
 * Todo.txt Touch/src/com/todotxt/todotxttouch/remote/DropboxLoginAsyncTask.java
 *
 * Copyright (c) 2009-2011 Tormod Haugen
 *
 * LICENSE:
 *
 * This file is part of Todo.txt Touch, an Android app for managing your todo.txt file (http://todotxt.com).
 *
 * Todo.txt Touch is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any
 * later version.
 *
 * Todo.txt Touch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with Todo.txt Touch.  If not, see
 * <http://www.gnu.org/licenses/>.
 *
 * @author Tormod Haugen <tormodh[at]gmail[dot]com>
 * @license http://www.gnu.org/licenses/gpl.html
 * @copyright 2009-2011 Tormod Haugen
 */
package com.todotxt.todotxttouch.remote;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.os.AsyncTask;
import android.text.Html;
import android.text.method.LinkMovementMethod;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.TextView;

import com.dropbox.client.DropboxAPI;
import com.dropbox.client.DropboxAPI.Config;
import com.todotxt.todotxttouch.R;

class DropboxLoginAsyncTask extends AsyncTask<Void, Void, Integer> implements
    RemoteLoginTask {

  private DropboxRemoteClient dropboxRemoteClient;
  private String m_username;
  private String m_password;

  public DropboxLoginAsyncTask(DropboxRemoteClient dropboxRemoteClient) {
    this.dropboxRemoteClient = dropboxRemoteClient;
  }

  @Override
  protected Integer doInBackground(Void... params) {
    if (!dropboxRemoteClient.isAuthenticated()) {
      dropboxRemoteClient.login(m_username, m_password);

      final Config config = dropboxRemoteClient.getConfig();
      if (config.authStatus != DropboxAPI.STATUS_SUCCESS)
        return config.authStatus;
    }
    DropboxAPI api = dropboxRemoteClient.getAPI();
    Log.d("Xtra", "" + api.accountInfo());
    if (!api.accountInfo().isError()) {
      return DropboxAPI.STATUS_SUCCESS;
    } else {
      return DropboxAPI.STATUS_FAILURE;
    }
  }

  @Override
  protected void onPostExecute(Integer result) {
    super.onPostExecute(result);
    final Config config = dropboxRemoteClient.getConfig();

    if (result == DropboxAPI.STATUS_SUCCESS) {
      if (null != config
          && config.authStatus == DropboxAPI.STATUS_SUCCESS) {
        dropboxRemoteClient.storeKeys(config.accessTokenKey,
            config.accessTokenSecret);
        dropboxRemoteClient.showToast("Logged into Dropbox");
        signalLoginSuccess();
      }
    } else {
      if (result == DropboxAPI.STATUS_NETWORK_ERROR) {
        dropboxRemoteClient.showToast("Network error: "
            + config.authDetail);
      } else {
        dropboxRemoteClient.showToast("Unsuccessful login.");
      }
    }
  }

  private void signalLoginSuccess() {
    Intent broadcastLoginIntent = new Intent(
        "com.todotxt.todotxttouch.ACTION_LOGIN");
    dropboxRemoteClient.sendBroadcast(broadcastLoginIntent);
  }

  public void showLoginDialog(Activity act) {
    if (dropboxRemoteClient.isLoggedIn()) {
      if (dropboxRemoteClient.authenticate()) {
        signalLoginSuccess();
        return;
      }
    }
    LayoutInflater inflator = LayoutInflater.from(act);
    View v = inflator.inflate(R.layout.logindialog, null);
    final TextView usernameTV = (TextView) v.findViewById(R.id.username);
    final TextView passwordTV = (TextView) v.findViewById(R.id.password);

    TextView mTextSample = (TextView) v.findViewById(R.id.register_hint);
    mTextSample.setMovementMethod(LinkMovementMethod.getInstance());
    String text = "No account? Create one at <a href=\"http://dropbox.com/m/register\">Dropbox</a>.";
    mTextSample.setText(Html.fromHtml(text));
    mTextSample.setFocusable(false);

    AlertDialog.Builder b = new AlertDialog.Builder(act);
    b.setView(v);
    b.setTitle(R.string.dropbox_authentication);
    b.setCancelable(true);
    b.setPositiveButton(R.string.login_button, new OnClickListener() {
      @Override
      public void onClick(DialogInterface dialog, int which) {
        String u = usernameTV.getText().toString();
        String p = passwordTV.getText().toString();
        if (u != null && u.length() > 0 && p != null && p.length() > 0) {
          m_username = u;
          m_password = p;
          execute();
        } else {
          cancel(false);
        }
      }
    });
    b.show();
  }

}

Java Source Code List

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