Android Open Source - mobile2-android Course Announcements Activity

From Project

License

The source code is released under:
Apache License
If you think the Android project mobile2-android listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

package com.ecollege.android;
/*ww  w .  j  ava 2 s .  c o  m*/
import java.util.List;

import roboguice.inject.InjectExtra;
import roboguice.inject.InjectResource;
import roboguice.inject.InjectView;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.text.Html;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import android.widget.TextView;

import com.ecollege.android.activities.ECollegeListActivity;
import com.ecollege.android.adapter.UberAdapter;
import com.ecollege.android.adapter.UberItem;
import com.ecollege.api.model.Announcement;
import com.ecollege.api.model.Course;
import com.ecollege.api.services.courses.FetchAnnouncementsForCourse;
import com.google.inject.Inject;

public class CourseAnnouncementsActivity extends ECollegeListActivity {
  
  @Inject ECollegeApplication app;
  @Inject SharedPreferences prefs;
  @InjectView(R.id.title_text) TextView titleText;
  @InjectView(R.id.course_title_text) TextView courseTitleText;
  @InjectResource(R.string.announcements) String announcementsTitle;
  @InjectExtra(CoursesActivity.COURSE_EXTRA) Course course;
  @InjectExtra(value=CourseActivity.ANNOUNCEMENT_LIST_EXTRA,optional=true) List<Announcement> announcements;
  private LayoutInflater viewInflater;
  private UberAdapter<Announcement> announcementsAdapter;
  
  @Override public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.course_menu_item_detail_view);
    
    viewInflater = getLayoutInflater();
    titleText.setText(announcementsTitle);
    displayCourse();
    loadAndDisplayAnnouncementsForCourse();
  }

  private void displayCourse() {
    courseTitleText.setText(Html.fromHtml(course.getTitle()));
  }
  
  private void loadAndDisplayAnnouncementsForCourse() {
    announcementsAdapter = new AnnouncementAdapter(this);
    setListAdapter(announcementsAdapter);
    
    if (announcements == null) {
      announcementsAdapter.beginLoading();
      buildService(new FetchAnnouncementsForCourse(course)).execute();
    } else {
      announcementsAdapter.updateItems(announcements);  
    }
  }

  public void onServiceCallSuccess(FetchAnnouncementsForCourse service) {
    announcements = service.getResult();
    announcementsAdapter.updateItems(service.getResult());
  }
  
  public void onServiceCallException(FetchAnnouncementsForCourse service, Exception ex) {
    announcementsAdapter.hasError();
  }
  
  @Override
  protected void onListItemClick(ListView l, View v, int position, long id) {
    @SuppressWarnings("unchecked")
    UberItem<Announcement> item = (UberItem<Announcement>)l.getItemAtPosition(position);
      Intent i = new Intent(this,AnnouncementActivity.class);
      i.putExtra(AnnouncementActivity.COURSE_EXTRA, course);
      i.putExtra(AnnouncementActivity.ANNOUNCEMENT_EXTRA, item.getDataItem());
      i.putExtra(AnnouncementActivity.FINISH_ON_CLICK_ALL_ANNOUNCEMENTS_EXTRA, true);
      startActivity(i);
  }
  
  protected class AnnouncementViewHolder {
    public TextView titleText;
    public TextView descriptionText;
  }
  
  protected class AnnouncementAdapter extends UberAdapter<Announcement> {

    public AnnouncementAdapter(Context context) {
      super(context, false, false, false);
    }
    

    @Override
    protected View getDataItemView(View convertView, ViewGroup parent,
        UberItem<Announcement> item) {
      AnnouncementViewHolder holder;
      if (convertView == null) {
        holder = new AnnouncementViewHolder();
        convertView = viewInflater.inflate(R.layout.announcement_list_item, null);
        holder.titleText = (TextView) convertView.findViewById(R.id.announcement_title);
        holder.descriptionText = (TextView) convertView.findViewById(R.id.description_text);
        convertView.setTag(holder);
      } else {
        holder = (AnnouncementViewHolder) convertView.getTag();
      }
      Announcement announcement = item.getDataItem();
      holder.titleText.setText(announcement.getSubject());
      holder.descriptionText.setText(announcement.getRawText());
      return convertView;
    }
  }
  

}
Java Source Code List
