Android Open Source - cheepcheep User Info Activity

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License

The source code is released under:
Apache License
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Java Source Code

package org.tarrio.cheepcheep;
//from  w  w w .  j a  va  2  s .co m
import java.util.List;

import org.tarrio.cheepcheep.R;
import org.tarrio.cheepcheep.model.Preferences;
import org.tarrio.cheepcheep.model.Tweet;
import org.tarrio.cheepcheep.model.User;
import org.tarrio.cheepcheep.service.PreferencesProvider;
import org.tarrio.cheepcheep.task.AsyncTwitterTask;
import org.tarrio.cheepcheep.task.FollowUnfollowUserTask;
import org.tarrio.cheepcheep.task.GetUserInfoTask;
import org.tarrio.cheepcheep.task.TaskCallback;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ContextMenu.ContextMenuInfo;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.AdapterView.AdapterContextMenuInfo;

public class UserInfoActivity extends Activity implements
    ListView.OnItemClickListener {

  private PreferencesProvider preferencesProvider;
  private TweetListActions tweetListActions;
  private User user;
  private List<Tweet> tweets;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    preferencesProvider = new PreferencesProvider(this);
    Preferences pref = preferencesProvider.get();

    Intent intent = getIntent();
    String username = intent.getData().getPathSegments().get(0);
    setWindowTitle(username);
    doGetUserInfo(pref, username);
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    if (user == null)
      return super.onCreateOptionsMenu(menu);

    getMenuInflater().inflate(R.menu.usermenu, menu);
    if (user.isFollowing())
      menu.removeItem(R.id.Follow);
    else
      menu.removeItem(R.id.Unfollow);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    String screenName = user.getScreenName();
    Preferences prefs = preferencesProvider.get();
    switch (item.getItemId()) {
    case R.id.Follow:
      doFollowUnFollowUser(screenName, prefs, true);
      return true;
    case R.id.Unfollow:
      doFollowUnFollowUser(screenName, prefs, false);
      return true;
    default:
      return super.onOptionsItemSelected(item);
    }
  }

  @Override
  public void onCreateContextMenu(ContextMenu menu, View v,
      ContextMenuInfo menuInfo) {
    super.onCreateContextMenu(menu, v, menuInfo);
    if (tweets != null)
      tweetListActions.createContextMenuForTweet(menu, menuInfo);
  }

  @Override
  public void onItemClick(AdapterView<?> l, View v, int position, long id) {
    tweetListActions.createMenuForTweetAtPosition(position);
  }

  @Override
  public boolean onContextItemSelected(MenuItem item) {
    AdapterContextMenuInfo info = (AdapterContextMenuInfo) item
        .getMenuInfo();
    Tweet tweet = tweets.get((int) info.id);
    if (tweetListActions.processContextItemSelectedForTweets(item, tweet))
      return true;
    else
      return super.onContextItemSelected(item);
  }

  public void setView(User user, List<Tweet> updates, Bitmap avatar) {
    this.user = user;

    View view = getLayoutInflater().inflate(R.layout.userinfo, null);

    setTextForView(view, R.id.ScreenName, "@" + user.getScreenName());
    if (!user.getScreenName().equals(user.getRealName()))
      setTextForViewOrMakeGone(view, R.id.RealName, user.getRealName());
    else
      makeGone(view, R.id.RealName);
    setTextForViewOrMakeGone(view, R.id.Description, user.getDescription());
    setTextForViewOrMakeGone(view, R.id.Location, user.getLocation());
    String counts = String.format(getString(R.string.counts_fmt), user
        .getNumFollowing(), user.getNumFollowers(), user
        .getNumUpdates());
    setTextForView(view, R.id.Counts, counts);
    Button homePageButton = (Button) view.findViewById(R.id.HomePageButton);
    if ("".equals(user.getHomepage()))
      homePageButton.setVisibility(View.GONE);
    else {
      final Uri homepage = Uri.parse(user.getHomepage());
      homePageButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
          Intent i = new Intent(Intent.ACTION_VIEW, homepage);
          startActivity(i);
        }
      });
    }
    TextView protectedText = (TextView) view
        .findViewById(R.id.ProtectedUpdates);
    if (!user.isSecret())
      protectedText.setVisibility(View.GONE);

    if (updates != null) {
      tweets = updates;
      ListView tweetList = (ListView) view.findViewById(R.id.Updates);
      tweetList.setAdapter(new TweetListAdapter(this, updates));
      tweetList.setOnItemClickListener(this);
      registerForContextMenu(tweetList);
      tweetListActions = new TweetListActions(this, preferencesProvider,
          tweets, new UpdateTweetsCallback(), new ReloadTweetsCallback());
    }

    if (avatar != null) {
      ImageView avatarView = (ImageView) view
          .findViewById(R.id.UserAvatar);
      avatarView.setImageBitmap(avatar);
    }

    setContentView(view);
  }

  private void setTextForViewOrMakeGone(View view, int id, String text) {
    if ("".equals(text))
      makeGone(view, id);
    else
      setTextForView(view, id, text);
  }

  private void setTextForView(View view, int id, String text) {
    ((TextView) view.findViewById(id)).setText(text);
  }

  private void makeGone(View view, int id) {
    view.findViewById(id).setVisibility(View.GONE);
  }

  /**
   * Sets the window's title.
   */
  private void setWindowTitle(String username) {
    String appName = getString(R.string.app_name);
    String titleFormat = getString(R.string.user_info_title);
    setTitle(String.format(titleFormat, appName, username));
  }

  private void doGetUserInfo(Preferences pref, String username) {
    TaskCallback callback = new TaskCallback() {
      @Override
      public void onSuccess(AsyncTwitterTask task) {
        GetUserInfoTask theTask = (GetUserInfoTask) task;
        setView(theTask.getUser(), theTask.getUpdates(), theTask
            .getAvatar());
      }

      @Override
      public void onFailure(int statusCode, AsyncTwitterTask task) {
        setResult(RESULT_CANCELED);
        finish();
      }
    };
    new GetUserInfoTask(this, pref, callback, username).run();
  }

  private void doFollowUnFollowUser(String screenName, Preferences prefs,
      boolean doFollow) {
    new FollowUnfollowUserTask(this, prefs, new ReloadTweetsCallback(), screenName, doFollow)
        .run();
  }

  private class UpdateTweetsCallback implements TaskCallback {
    /**
     * Exits the activity if a tweet was posted, signalling the
     * previous activity that it should update its list of tweets.
     */
    @Override
    public void onSuccess(AsyncTwitterTask task) {
      setResult(Constants.RESULT_UPDATE);
      finish();
    }

    @Override
    public void onFailure(int statusCode, AsyncTwitterTask task) {
    }
  }

  private class ReloadTweetsCallback implements TaskCallback {
    /**
     * Exits the activity if a tweet was deleted, signalling the
     * previous activity that it should reload its list of tweets.
     */
    @Override
    public void onSuccess(AsyncTwitterTask task) {
      setResult(Constants.RESULT_RELOAD);
      finish();
    }

    @Override
    public void onFailure(int statusCode, AsyncTwitterTask task) {
    }
  }

}
Java Source Code List
