Add property which allows header view to handle touch events.

deRonbrown · Jun 26, 2014 · 9439d5a · 9439d5a
1 parent e7141ee
commit 9439d5a
Showing 1 changed file with 28 additions and 0 deletions.
diff --git a/library/src/com/manuelpeinado/fadingactionbar/FadingActionBarHelperBase.java b/library/src/com/manuelpeinado/fadingactionbar/FadingActionBarHelperBase.java
@@ -59,6 +59,7 @@ public abstract class FadingActionBarHelperBase {
     private boolean mFirstGlobalLayoutPerformed;
     private FrameLayout mMarginView;
     private View mListViewBackgroundView;
+    private boolean mAllowHeaderTouchEvents = false;
 
     public final <T extends FadingActionBarHelperBase> T actionBarBackground(int drawableResId) {
         mActionBarBackgroundResId = drawableResId;
@@ -110,6 +111,11 @@ public final <T extends FadingActionBarHelperBase> T  parallax(boolean value) {
         return (T)this;
     }
 
+    public final <T extends FadingActionBarHelperBase> T allowHeaderTouchEvents(boolean value) {
+        mAllowHeaderTouchEvents = value;
+        return (T)this;
+    }
+
     public final View createView(Context context) {
         return createView(LayoutInflater.from(context));
     }
@@ -232,6 +238,10 @@ private View createWebView() {
                 ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT));
         webView.addView(mMarginView);
 
+        if (mAllowHeaderTouchEvents) {
+            setMarginViewTouchListener();
+        }
+
         return webViewContainer;
     }
 
@@ -251,6 +261,10 @@ private View createScrollView() {
         mHeaderContainer.addView(mHeaderView, 0);
         mMarginView = (FrameLayout) contentContainer.findViewById(R.id.fab__content_top_margin);
 
+        if (mAllowHeaderTouchEvents) {
+            setMarginViewTouchListener();
+        }
+
         return scrollViewContainer;
     }
 
@@ -279,6 +293,11 @@ private View createListView(ListView listView) {
         mListViewBackgroundView.setLayoutParams(params);
 
         listView.setOnScrollListener(mOnScrollListener);
+
+        if (mAllowHeaderTouchEvents) {
+            setMarginViewTouchListener();
+        }
+
         return contentContainer;
     }
 
@@ -356,4 +375,13 @@ private void initializeGradient(ViewGroup headerContainer) {
         }
         gradientView.setBackgroundResource(gradient);
     }
+
+    private void setMarginViewTouchListener() {
+        mMarginView.setOnTouchListener(new View.OnTouchListener() {
+            @Override
+            public boolean onTouch(View v, MotionEvent event) {
+                return mHeaderView.dispatchTouchEvent(event);
+            }
+        });
+    }
 }