Android Open Source - NotATop Track

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Back to project page NotATop.

License

The source code is released under:

GNU General Public License

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Java Source Code

package com.gg.util;
//from   w  w  w.  j  av  a  2  s  .c o m
import java.util.ArrayList;
import android.view.MotionEvent;

public class Track {
  ArrayList<TrackPoint> list;
  ArrayList<TrackPoint> drawList;
  private Boolean touchFlag;
  private long startTime;
  
  public Track() {
    touchFlag = false;

    list = new ArrayList<TrackPoint>();
    drawList = new ArrayList<TrackPoint>();
  }
  
  public ArrayList<TrackPoint> getDrawList() {
    return drawList;
  }
  
  public ArrayList<TrackPoint> getList(){
    return list;
  }
  
  public void onTouchDown(MotionEvent e) {
    list.clear();
    touchFlag = true;
    startTime = System.currentTimeMillis();
    TrackPoint point = new TrackPoint(e.getX() , e.getY() , System.currentTimeMillis());
    list.add(point);
  }
  
  public void onTouchMove(MotionEvent e) {
    if((System.currentTimeMillis() - startTime) > 300){
      touchFlag = false;
//      list.clear();
      return;
    }else{
      TrackPoint point = new TrackPoint(e.getX() , e.getY() , System.currentTimeMillis());
      list.add(point);
      setPoint(list, drawList);
    }
  }
  
  public void onTouchUp(MotionEvent e) {
    TrackPoint point = new TrackPoint(e.getX() , e.getY() , System.currentTimeMillis());
    list.add(point);
    touchFlag = false;
  }
  
  public void setPoint(ArrayList<TrackPoint> list, ArrayList<TrackPoint> drawList) {
    drawList.clear();
    long currentTime = System.currentTimeMillis();
    //????????????????
    for(int i = 0; i < list.size(); i ++){            
      if((currentTime - list.get(i).birth) > 300){
        for(int j = list.size() -1 ; j > i ; j--){
          list.remove(j);
        }
        i = list.size();
      }
    }
    
    drawList.add(list.get(0));
    for(int i = 0; i < list.size() - 2; i ++){
      drawList.add(list.get(i).leftPoint(list.get(i), list.get(i + 1), list.get(i + 1).birth, list.get(list.size() - 1).birth));
      drawList.add(list.get(i).rightPoint(list.get(i), list.get(i + 1), list.get(i + 1).birth, list.get(list.size() - 1).birth));
    }
    drawList.add(list.get(list.size() - 1));
  }
}

Java Source Code List