Android Open Source - retrowatch Rss Adapter

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (C) 2014 The Retro Watch - Open source smart watch project
 */*from   www .j  a  v  a  2 s.co m*/
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.hardcopy.retrowatch;

import java.util.ArrayList;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnTouchListener;
import android.widget.ArrayAdapter;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.hardcopy.retrowatch.contents.objects.CPObject;
import com.hardcopy.retrowatch.utils.Utils;

public class RssAdapter extends ArrayAdapter<CPObject> {

  public static final String tag = "RssAdapter";
  
  private Context mContext = null;
  private IAdapterListener mAdapterListener = null;
  
  private ArrayList<CPObject> mCPList = null;
  
  
  public RssAdapter(Context c, int resId, ArrayList<CPObject> itemList, IAdapterListener l) {
    super(c, resId, itemList);
    mContext = c;
    mAdapterListener = l;
    
    if(itemList == null)
      mCPList = new ArrayList<CPObject>();
    else
      mCPList = itemList;
  }
  
  public void addRss(CPObject co) {
    mCPList.add(co);
  }
  
  public void addRssAll(ArrayList<CPObject> itemList) {
    if(itemList == null)
      return;
    for(int i=0; i<itemList.size(); i++)
      addRss(itemList.get(i));
  }
  
  public void editRss(CPObject co) {
    for(CPObject cpo : mCPList) {
      if(cpo.mId == co.mId) {
        cpo.mId = co.mId;
        cpo.mName = co.mName;
        cpo.mURL = co.mURL;
      }
    }
  }
  
  public void deleteRss(int id) {
    for(int i = mCPList.size() - 1; -1 < i; i--) {
      CPObject cpo = mCPList.get(i);
      if(cpo.mId == id) {
        mCPList.remove(i);
      }
    }
  }
  
  public void deleteRssAll() {
    if(mCPList != null)
      mCPList.clear();
  }
  
  @Override
  public int getCount() {
    return mCPList.size();
  }
  @Override
  public CPObject getItem(int position) { 
    return mCPList.get(position); 
  }
  @Override
  public long getItemId(int position) {
    return position;
  }

  @Override
  public View getView(int position, View convertView, ViewGroup parent) {
    ViewHolder holder;
    View v = convertView;
    CPObject cpo = getItem(position);
    
    if(v == null) {
      LayoutInflater li = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
      v = li.inflate(R.layout.list_rss, null);
      holder = new ViewHolder();
      
      holder.mPosition = position;
      holder.mLayoutContainer = (LinearLayout) v.findViewById(R.id.rss_item_container);
      holder.mLayoutContainer.setTag(cpo);
      holder.mLayoutContainer.setOnTouchListener(mListItemTouchListener);
      holder.mTextUrl = (TextView) v.findViewById(R.id.rss_url);
      holder.mTextTitle = (TextView) v.findViewById(R.id.rss_title);
      
      v.setTag(holder);
    } else {
      holder = (ViewHolder) v.getTag();
      holder.mLayoutContainer.setTag(cpo);
    }
    
    if (cpo != null && holder != null) {
      holder.mTextUrl.setText(cpo.mURL);
      holder.mTextTitle.setText(cpo.mName);
    }
    
    return v;
  }  // End of getView()
  
  
  private OnTouchListener mListItemTouchListener = new OnTouchListener() {
    private float startx = 0;
    private float starty = 0;
    @Override
    public boolean onTouch(View v, MotionEvent event) {
      if(event.getAction()==MotionEvent.ACTION_DOWN){
        startx = event.getX();
        starty = event.getY();
      }
      if(event.getAction()==MotionEvent.ACTION_UP){
        // if action-up occurred within 30px from start, process as click event. 
        if( (startx - event.getX())*(startx - event.getX()) + (starty - event.getY())*(starty - event.getY()) < 900 ) {
          processOnClickEvent(v);
        }
      }
      return true;
    }
  };  // End of new OnTouchListener
  
  private void processOnClickEvent(View v) {
    switch(v.getId())
    {
      case R.id.rss_item_container:
        CPObject cpo = (CPObject) v.getTag();
        mAdapterListener.OnAdapterCallback(IAdapterListener.CALLBACK_RSS_SELECTED, 0, 0, null, null, cpo);
        
        break;
    }  // End of switch()
  }
  
  public class ViewHolder {
    public int mPosition = -1;
    public LinearLayout mLayoutContainer = null;
    public TextView mTextTitle = null;
    public TextView mTextUrl = null;
  }
  
}

Java Source Code List

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