Merge pull request #7 from PeterCxy/patch-2

SwipeLayout: Allow childs to deny swipe gesture

Author: daimajia

library/src/main/java/com/daimajia/swipe/SwipeLayout.java

@@ -28,6 +28,7 @@ public class SwipeLayout extends FrameLayout {
     private ShowMode mShowMode;
 
     private List<SwipeListener> mSwipeListeners = new ArrayList<SwipeListener>();
+    private List<SwipeDenier> mSwipeDeniers = new ArrayList<SwipeDenier>();
     private Map<View, ArrayList<OnRevealListener>> mRevealListeners = new HashMap<View, ArrayList<OnRevealListener>>();
     private Map<View, Boolean> mShowEntirely = new HashMap<View, Boolean>();
 
@@ -82,6 +83,31 @@ public void removeAllSwipeListener(){
         mSwipeListeners.clear();
     }
 
+    public static interface SwipeDenier {
+		/*
+		 * Called in onInterceptTouchEvent
+		 * Determines if this swipe event should be denied
+		 * Implement this interface if you are using views with swipe gestures
+		 * As a child of SwipeLayout
+		 *
+		 * @return true deny
+		 *         false allow
+		 */
+        public boolean shouldDenySwipe(MotionEvent ev);
+    }
+
+    public void addSwipeDenier(SwipeDenier denier) {
+        mSwipeDeniers.add(denier);
+    }
+
+    public void removeSwipeDenier(SwipeDenier denier) {
+        mSwipeDeniers.remove(denier);
+    }
+
+    public void removeAllSwipeDeniers() {
+        mSwipeDeniers.clear();
+    }
+
     public interface OnRevealListener {
         public void onReveal(View child, DragEdge edge, float fraction, int distance);
     }
@@ -615,6 +641,12 @@ public boolean dispatchTouchEvent(MotionEvent ev) {
 
     @Override
     public boolean onInterceptTouchEvent(MotionEvent ev) {
+        for (SwipeDenier denier : mSwipeDeniers) {
+            if (denier != null && denier.shouldDenySwipe(ev)) {
+                return false;
+            }
+        }
+
         return mDragHelper.shouldInterceptTouchEvent(ev);
     }