src/com/owncloud/android/ui/OnSwipeTouchListener.java

   1 package com.owncloud.android.ui;
   2
   3 import android.content.Context;
   4 import android.util.Log;
   5 import android.view.GestureDetector;
   6 import android.view.GestureDetector.SimpleOnGestureListener;
   7 import android.view.MotionEvent;
   8 import android.view.View;
   9 import android.view.View.OnTouchListener;
  10 import android.widget.Toast;
  11
  12 public class OnSwipeTouchListener implements OnTouchListener {
  13
  14     private final Context mContext;
  15     private final GestureDetector mGestureDetector;
  16
  17     public OnSwipeTouchListener(Context context) {
  18         mContext = context;
  19         mGestureDetector = new GestureDetector(context, new GestureListener());
  20     }
  21
  22     public boolean onTouch(final View v, final MotionEvent event) {
  23         //super.onTouch(v, event);
  24         Log.d("SWIPE", "Swipe listener touched");
  25         return mGestureDetector.onTouchEvent(event);
  26     }
  27
  28     private final class GestureListener extends SimpleOnGestureListener {
  29
  30         private static final int SWIPE_THRESHOLD = 100;
  31         private static final int SWIPE_VELOCITY_THRESHOLD = 100;
  32
  33         @Override
  34         public boolean onDown(MotionEvent e) {
  35             return true;
  36         }
  37
  38         @Override
  39         public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
  40             boolean result = false;
  41             try {
  42                 float diffY = e2.getY() - e1.getY();
  43                 float diffX = e2.getX() - e1.getX();
  44                 if (Math.abs(diffX) > Math.abs(diffY)) {
  45                     if (Math.abs(diffX) > SWIPE_THRESHOLD && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD) {
  46                         if (diffX > 0) {
  47                             onSwipeRight();
  48                         } else {
  49                             onSwipeLeft();
  50                         }
  51                     }
  52                 } else {
  53                     if (Math.abs(diffY) > SWIPE_THRESHOLD && Math.abs(velocityY) > SWIPE_VELOCITY_THRESHOLD) {
  54                         if (diffY > 0) {
  55                             onSwipeBottom();
  56                         } else {
  57                             onSwipeTop();
  58                         }
  59                     }
  60                 }
  61             } catch (Exception exception) {
  62                 exception.printStackTrace();
  63             }
  64             return result;
  65         }
  66     }
  67
  68     public void onSwipeTop() {
  69         Toast.makeText(mContext, "top", Toast.LENGTH_SHORT).show();
  70     }
  71     public void onSwipeRight() {
  72         Toast.makeText(mContext, "right", Toast.LENGTH_SHORT).show();
  73     }
  74     public void onSwipeLeft() {
  75         Toast.makeText(mContext, "left", Toast.LENGTH_SHORT).show();
  76     }
  77     public void onSwipeBottom() {
  78         Toast.makeText(mContext, "bottom", Toast.LENGTH_SHORT).show();
  79     }
  80
  81 }
  82