Android Open Source - ls-vertretungsplan Nachrichten Fragment

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License

The source code is released under:

GNU General Public License

Java Source Code

/*  Vertretungsplan - Android-App fr Vertretungsplne von Schulen
    Copyright (C) 2014  Johan v. Forstner
/* ww w  .  j av  a2s.  co  m*/
    This program 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 3 of the License, or
    (at your option) any later version.

    This program 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 this program.  If not, see [http://www.gnu.org/licenses/]. */

package com.johan.vertretungsplan;

import java.util.ArrayList;
import java.util.TreeSet;

import org.holoeverywhere.LayoutInflater;
import org.holoeverywhere.app.Activity;
import org.holoeverywhere.widget.ListView;
import org.holoeverywhere.widget.ProgressBar;
import org.holoeverywhere.widget.TextView;

import android.content.Context;
import android.os.Bundle;
import android.text.Html;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;

import com.johan.vertretungsplan.objects.AdditionalInfo;
import com.johan.vertretungsplan.objects.Vertretungsplan;
import com.johan.vertretungsplan.objects.VertretungsplanTag;
import com.johan.vertretungsplan.utils.Animations;


public class NachrichtenFragment extends VertretungsplanFragment {
  
  public interface Callback {
    public Vertretungsplan getVertretungsplan();
  }
  
  private ListView list;
  private ProgressBar pBar = null;
  private boolean showProgress = true;
  boolean ready = false;
  private Callback mCallback;

    private Activity activity;
     private NachrichtenAdapter listadapter = null;
     
     private Vertretungsplan v;
  
  public static final String EXTRA_TITLE = "Vertretungsplan";
  public static final String PREFS_NAME = "VertretungsplanLS";
  
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {       
    View view = inflater.inflate(R.layout.fragment_nachrichten, container, false);

        pBar = (ProgressBar) view.findViewById(R.id.progressBar2);
        list = (ListView) view.findViewById(R.id.listView2);
        progress(true);
        
        listadapter = new NachrichtenAdapter(activity);
    list.setAdapter(listadapter);
    
    // Inflate the layout for this fragment
        return view;
    }
    
    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        progress(showProgress);
        ready = true;
        if (mCallback.getVertretungsplan() != null)
          setVertretungsplan(mCallback.getVertretungsplan());
        
        super.onViewCreated(view, savedInstanceState);
    }
    
    public static Bundle createBundle( String title ) {
        Bundle bundle = new Bundle();
        bundle.putString( EXTRA_TITLE, title );
        return bundle;
    }
    
    public void setVertretungsplan(Vertretungsplan v) {
      this.v = v;
      refresh();
    }
    
    public void refresh() {
      progress(false);
      if(ready && v != null && getView() != null) {      
        listadapter.clear(); 
        
        for(VertretungsplanTag tag:v.getTage()) {        
          listadapter.addSeparatorItem(tag.getDatum());
          for (String message:tag.getNachrichten()) {
            listadapter.addItem(Html.fromHtml(message));
          }
          if(tag.getNachrichten().size() == 0)
            listadapter.addItem(getResources().getString(R.string.no_info));
        }
        for(AdditionalInfo info:v.getAdditionalInfos())   {  
          listadapter.addSeparatorItem(info.getTitle());
            listadapter.addItem(info.getText());
        }
      progress(false);
      }
}
    
    public void progress(Boolean show) {
      showProgress = show;
      if (pBar != null) {
        if (show == true) {
          Animations.crossfade(list, pBar);
        } else {
          Animations.crossfade(pBar, list);
        }
      }
    }
    
    public class NachrichtenAdapter extends BaseAdapter {
      
        private static final int TYPE_ITEM = 0;
        private static final int TYPE_SEPARATOR = 1;
        private static final int TYPE_MAX_COUNT = TYPE_SEPARATOR + 1;
 
        private ArrayList<CharSequence> mData = new ArrayList<CharSequence>();
        private LayoutInflater mInflater;
 
        private TreeSet<Integer> mSeparatorsSet = new TreeSet<Integer>();
 
        public NachrichtenAdapter(Context context) {
            mInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        }
 
        public void addItem(final CharSequence item) {
            mData.add(item);
            notifyDataSetChanged();
        }
 
        public void addSeparatorItem(final String item) {
            mData.add(item);
            // save separator position
            mSeparatorsSet.add(mData.size() - 1);
            notifyDataSetChanged();
        }
 
        @Override
        public int getItemViewType(int position) {
            return mSeparatorsSet.contains(position) ? TYPE_SEPARATOR : TYPE_ITEM;
        }
 
        @Override
        public int getViewTypeCount() {
            return TYPE_MAX_COUNT;
        }
 
        @Override
        public int getCount() {
            return mData.size();
        }
 
        @Override
        public String getItem(int position) {
            return (String) mData.get(position);
        }
 
        @Override
        public long getItemId(int position) {
            return position;
        }
 
        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder holder = null;
            int type = getItemViewType(position);
            if (convertView == null) {
                holder = new ViewHolder();
                switch (type) {
                    case TYPE_ITEM:
                      convertView = mInflater.inflate(R.layout.text, null);
                      holder.text = (TextView)convertView.findViewById(R.id.text);
                        holder.text.setText((CharSequence) mData.get(position));
                        break;
                    case TYPE_SEPARATOR:
                        convertView = mInflater.inflate(R.layout.separator_bold, null);
                        holder.textView = (TextView)convertView.findViewById(R.id.textSeparator);
                        holder.textView.setText((CharSequence) mData.get(position));
                        break;
                }
            } else {
                holder = (ViewHolder)convertView.getTag();
                
                switch (type) {
                case TYPE_ITEM:
                  convertView = mInflater.inflate(R.layout.text, null);
                  holder.text = (TextView)convertView.findViewById(R.id.text);
                    holder.text.setText((CharSequence) mData.get(position));
                    break;
                case TYPE_SEPARATOR:
                    convertView = mInflater.inflate(R.layout.separator, null);
                    holder.textView = (TextView)convertView.findViewById(R.id.textSeparator);
                    holder.textView.setText((CharSequence) mData.get(position));
                    break;
            }
            }
            convertView.setTag(holder);
            return convertView;
        }
        
        public void clear() {
          mData.clear();
          mSeparatorsSet.clear();
          notifyDataSetChanged();
        }
 
    }
    
    public static class ViewHolder {
        public TextView text;
    public TextView textView;
    }
    
    @Override
    public void onAttach(Activity activity) {
      super.onAttach(activity);
      this.activity = activity;
      mCallback = (Callback) activity;
    }
    
    @Override
    public void onDetach() {
      super.onDetach();
      mCallback = null;
    }
    
}

Java Source Code List

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