Android Open Source - adamsonelearn Home Page Fragment

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License

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

package com.jaselogic.adamsonelearn;
//from ww  w . java 2s  .  c o m
import java.text.SimpleDateFormat;
import java.text.DateFormat;
import java.util.ArrayList;
import java.util.Date;
import com.jaselogic.adamsonelearn.SubjectListAdapter.SubjectListItem;
import com.jaselogic.adamsonelearn.TodayListAdapter.TodayListItem;
import com.jaselogic.adamsonelearn.UpdatesListAdapter.UpdatesListItem;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.support.v4.content.LocalBroadcastManager;
import android.text.format.Time;

import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

class HomePageFragment {
  //Page fragment class
  public static class UpdatesFragment extends ListFragment {  
    //private String cookie;
    private UpdatesListAdapter adapter;
    private ArrayList<UpdatesListItem> updateArrayList;
    
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
      View pageRootView = inflater.inflate(R.layout.fragment_listview, 
          container, false);

      updateArrayList = new ArrayList<UpdatesListItem>();  
      adapter = new UpdatesListAdapter(getActivity(), updateArrayList);
      setListAdapter(adapter);
      
      //get original cookie
      //cookie = ((Dashboard)getActivity()).cookie;
      
      return pageRootView;
    }
        
    private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
      @Override
      public void onReceive(Context context, Intent intent) {
        populateUpdatesList();
        broadcastUpdatesReady();
      }
    };

    @Override
    public void onPause() {
      super.onPause();
      LocalBroadcastManager.getInstance(getActivity())
        .unregisterReceiver(mBroadcastReceiver);
    }
    
    @Override
    public void onResume() {
      super.onResume();
      LocalBroadcastManager.getInstance(getActivity())
        .registerReceiver(mBroadcastReceiver, new IntentFilter(UpdateIntentService.NOTIFICATION));
    }
    
    public void populateUpdatesList() {
      DateFormat formatter = new SimpleDateFormat(
          "'Date Added : 'MMM dd, yyyy 'at' hh:mm:ss aa");
      
      //open database
      SQLiteDatabase eLearnDb = getActivity().openOrCreateDatabase("AdUELearn", Context.MODE_PRIVATE, null);
      
      Cursor c = eLearnDb.rawQuery(
          "SELECT SubjTable.ProfName, UpdatesTable.SectionId, " +
          "SubjTable.SubjName, UpdatesTable.Title, " +
          "UpdatesTable.Body, UpdatesTable.DateAdded, " +
          "SubjTable.AvatarSrc " +
          "FROM UpdatesTable LEFT JOIN SubjTable ON " +
          "UpdatesTable.SectionId=SubjTable.SectionId", null);
      
      while(c.moveToNext()) {
        UpdatesListItem tempItem = new UpdatesListItem();
        tempItem.name = c.getString(c.getColumnIndex("ProfName"));
        StringBuilder sbSubject = new StringBuilder(
            c.getString(c.getColumnIndex("SectionId"))
            );
        sbSubject.append(" : ");
        sbSubject.append(c.getString(c.getColumnIndex("SubjName")));
        tempItem.subject = sbSubject.toString();
        tempItem.title = c.getString(c.getColumnIndex("Title"));
        tempItem.body = c.getString(c.getColumnIndex("Body"));
        tempItem.dateAdded = formatter.format(new Date(c.getLong(c.getColumnIndex("DateAdded"))));
        tempItem.avatarSrc = c.getString(c.getColumnIndex("AvatarSrc"));
        
        updateArrayList.add(tempItem);
      }
      
      adapter.notifyDataSetChanged();
      
      //close database
      eLearnDb.close();
    }
    
    public void broadcastUpdatesReady() {
      Intent intent = new Intent("updates-list-ready");
      LocalBroadcastManager.getInstance(getActivity()).sendBroadcast(intent);
    }
  }
  
  public static class SubjectsFragment extends ListFragment {  
    private String cookie;
    private SubjectListAdapter adapter;
    private ArrayList<SubjectListItem> subjectArrayList;
    
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
      View pageRootView = inflater.inflate(R.layout.fragment_listview, 
          container, false);
      subjectArrayList = new ArrayList<SubjectListItem>();  
      adapter = new SubjectListAdapter(getActivity(), subjectArrayList);
      setListAdapter(adapter);
      
      //get original cookie
      cookie = ((Dashboard)getActivity()).cookie;
      
      Intent intent = new Intent(getActivity(), SubjectIntentService.class);
      intent.putExtra(SubjectIntentService.EXTRA_COOKIE, cookie);
      getActivity().startService(intent);
      
      return pageRootView;
    }
    
    private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
      @Override
      public void onReceive(Context context, Intent intent) {
        SQLiteDatabase eLearnDb = getActivity().openOrCreateDatabase("AdUELearn", Context.MODE_PRIVATE, null);
        displaySubjects(eLearnDb);
        eLearnDb.close();
        
        //start updates intent
        Intent updatesIntent = new Intent(getActivity(), UpdateIntentService.class);
        updatesIntent.putExtra(SubjectIntentService.EXTRA_COOKIE, cookie);
        getActivity().startService(updatesIntent);
      }
    };

    @Override
    public void onPause() {
      super.onPause();
      LocalBroadcastManager.getInstance(getActivity())
        .unregisterReceiver(mBroadcastReceiver);
    }
    
    @Override
    public void onResume() {
      super.onResume();
      LocalBroadcastManager.getInstance(getActivity())
        .registerReceiver(mBroadcastReceiver, new IntentFilter(SubjectIntentService.NOTIFICATION));
    }
      
    public void broadcastListReady() {
      Intent intent = new Intent("subject-list-ready");
      LocalBroadcastManager.getInstance(getActivity()).sendBroadcast(intent);
    }
        
    public void displaySubjects(SQLiteDatabase eLearnDb) {
      //issue select
      Cursor c = eLearnDb.rawQuery("SELECT * FROM SubjTable", null);
      
      while(c.moveToNext()) {
        SubjectListItem subjectItem = new SubjectListItem();
        StringBuilder sbSubject = new StringBuilder(
            String.format("%05d", c.getInt(c.getColumnIndex("SectionId")))
            );
        sbSubject.append(" : ");
        sbSubject.append(c.getString(c.getColumnIndex("SubjName")));
        
        subjectItem.subject = sbSubject.toString();
        subjectItem.teacher = c.getString(c.getColumnIndex("ProfName"));
        
        StringBuilder sbSchedule = new StringBuilder(
            ScheduleHelper.convertIntToStringDaySlot(c.getInt(c.getColumnIndex("DaySlot")))
            );
        sbSchedule.append(" ");
        sbSchedule.append(
            ScheduleHelper.convertIntToStringSlot(
                c.getInt(c.getColumnIndex("TimeStart")),
                c.getInt(c.getColumnIndex("TimeEnd")) )
            );
        sbSchedule.append(" ");
        sbSchedule.append(c.getString(c.getColumnIndex("Room")));
        
        subjectItem.schedule = sbSchedule.toString();
        
        subjectItem.avatarSrc = c.getString(c.getColumnIndex("AvatarSrc"));
        subjectArrayList.add(subjectItem);
      }
      
      adapter.notifyDataSetChanged();
    }
  }
  
  public static class TodayFragment extends ListFragment {
    private TodayListAdapter adapter;
    private ArrayList<TodayListItem> todayArrayList;
    
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
      ViewGroup pageRootView = (ViewGroup) inflater.inflate(
          R.layout.fragment_listview, container, false);
      
      todayArrayList = new ArrayList<TodayListItem>();
      adapter = new TodayListAdapter(getActivity(), todayArrayList);
      setListAdapter(adapter);
      return pageRootView;
    }
    
    private BroadcastReceiver mMessageReceiver = new BroadcastReceiver() {
      
      @Override
      public void onReceive(Context context, Intent intent) {
        //get current time
        Time timeNow = new Time();
        timeNow.setToNow();
        
        //open database
        SQLiteDatabase eLearnDb = getActivity().openOrCreateDatabase("AdUELearn", Context.MODE_PRIVATE, null);
        populateTodayListView(timeNow, eLearnDb);
        //close database
        eLearnDb.close();
      }
    };
    
    //listen to subject list ready event
    @Override
    public void onResume() {
      super.onResume();
      LocalBroadcastManager.getInstance(getActivity())
        .registerReceiver(mMessageReceiver, new IntentFilter("updates-list-ready"));
    }
    
    @Override
    public void onPause() {
      LocalBroadcastManager.getInstance(getActivity())
      .unregisterReceiver(mMessageReceiver);
      super.onPause();
    }
/*SUBJECT
    eLearnDb.execSQL("CREATE TABLE SubjTable " +
        "(SectionId INTEGER, SubjName TEXT, " +
        "ProfName TEXT, DaySlot INTEGER, " + 
        "TimeStart INTEGER, TimeEnd INTEGER, Room TEXT, " +
        "AvatarSrc TEXT);");
  */  
    
/*UPDATES
 *       eLearnDb.execSQL("CREATE TABLE UpdatesTable " +
          "(SectionId INTEGER, Title TEXT, " +
          "Body TEXT, DateAdded INTEGER);");
 */
    
/*
 *       "SELECT s.SubjName, s.TimeStart, " +
      "s.TimeEnd, s.Room, " +
      "u.Title, u.Body " +
      "FROM SubjTable s LEFT OUTER JOIN UpdatesTable u " +
      "ON s.SectionId = u.SectionId " +
      "INNER JOIN (SELECT SectionId, MAX(DateAdded) AS maxDate FROM UpdatesTable GROUP BY SectionId) uniqTable " +
      "ON uniqTable.SectionId = u.SectionId AND uniqTable.maxDate = u.DateAdded " +
      "WHERE s.DaySlot & ? > 1 " +
      "ORDER BY s.TimeStart", 
 */
    public void populateTodayListView(Time timeNow, SQLiteDatabase eLearnDb) {
      Cursor c = eLearnDb.rawQuery(
          "SELECT s.SubjName, s.TimeStart, " +
          "s.TimeEnd, s.Room, " +
          "v.Title, v.Body " +
          "FROM SubjTable s LEFT OUTER JOIN " +
          "(SELECT * FROM UpdatesTable u " +
          "INNER JOIN (SELECT SectionId, MAX(DateAdded) AS maxDate FROM UpdatesTable GROUP BY SectionId) uniqTable " +
          "ON uniqTable.SectionId = u.SectionId AND uniqTable.maxDate = u.DateAdded) v " +
          "ON s.SectionId = v.SectionId " +
          "WHERE s.DaySlot & ? > 1 " +
          "ORDER BY s.TimeStart", 
          new String[] { String.valueOf(1 << (timeNow.weekDay - 1)) }
          );
      
      int timeSlotNow = ScheduleHelper.convertTimeToIntSlot(timeNow);
      short indicator = 0; // 1 = NOW, 2 = NEXT
      
      Log.d("CURRI", String.valueOf(c.getCount()));
      while(c.moveToNext()) {
        int curTimeStart = c.getInt(c.getColumnIndex("TimeStart"));
        int curTimeEnd = c.getInt(c.getColumnIndex("TimeEnd"));
        TodayListItem tempItem = new TodayListItem();
        TodayListItem tempTitle = new TodayListItem();
        tempTitle.viewType = TodayListAdapter.ItemType.ITEM_TITLE;
        if( timeSlotNow < curTimeStart && (indicator & 2) == 0 ) { //WALANG PANG NOW at NEXT
          tempItem.viewType = TodayListAdapter.ItemType.ITEM_NEXT;
          tempTitle.mainText = "NEXT:";
          todayArrayList.add(tempTitle);
          indicator |= 2;
        } else if ( timeSlotNow >= curTimeStart && timeSlotNow < curTimeEnd ) { //Now
          tempItem.viewType = TodayListAdapter.ItemType.ITEM_NOW;
          tempTitle.mainText = "NOW:";
          todayArrayList.add(tempTitle);
          indicator |= 1;
        } else if ( timeSlotNow < curTimeStart ) {
          tempTitle.mainText = "LATER:";
          tempItem.viewType = TodayListAdapter.ItemType.ITEM_LATER;
          if ( indicator < 4 )
            todayArrayList.add(tempTitle);
          indicator |= 4;
        }
        
        //if now bit is unset after first pass, set it
        if( (indicator & 1) == 0 && (indicator & 2) == 2 ) {
          tempItem.viewType = TodayListAdapter.ItemType.ITEM_NOW;
          indicator |= 1;
        }
        
        //add to list here.
        if(indicator > 0) {
          tempItem.mainText = c.getString(c.getColumnIndex("SubjName"));
          tempItem.timeText = ScheduleHelper
              .convertIntToStringSlot(curTimeStart, curTimeEnd);
          tempItem.roomText = c.getString(c.getColumnIndex("Room"));
          //build reminder string
          
          String bodyString = c.getString(c.getColumnIndex("Body"));
          String titleString = c.getString(c.getColumnIndex("Title"));
          if(bodyString != null) {
            StringBuilder sbRem = new StringBuilder("<b>");
            sbRem.append(titleString);
            sbRem.append("</b>.&nbsp;&nbsp;");
            sbRem.append(bodyString);
            tempItem.reminderText = sbRem.toString();
          } else {
            tempItem.reminderText = "None";
          }
          todayArrayList.add(tempItem);
        }
      }
      adapter.notifyDataSetChanged();
    }
    
  }
}
Java Source Code List
