From c0c05f08ce063f796e68a0944193fd07bb6cdbc4 Mon Sep 17 00:00:00 2001
From: Sven Braune <sven.braune@kaufland.com>
Date: Wed, 21 Jun 2017 11:30:52 +0200
Subject: [PATCH] # Restore swipe position on Layout

---
 .../example/MyItemRecyclerViewAdapter.java    |  1 +
 .../com/swipelibrary/DraggingProxy.java       | 10 ++++
 .../com/swipelibrary/LayoutCache.java         | 52 +++++++++++++++++++
 .../com/swipelibrary/SwipeLayout.java         | 16 +++++-
 4 files changed, 78 insertions(+), 1 deletion(-)
 create mode 100644 swipelibrary/src/main/java/kaufland/com/swipelibrary/LayoutCache.java

diff --git a/app/src/main/java/kaufland/com/demo/example/MyItemRecyclerViewAdapter.java b/app/src/main/java/kaufland/com/demo/example/MyItemRecyclerViewAdapter.java
index da00d07..4b3b6a8 100644
--- a/app/src/main/java/kaufland/com/demo/example/MyItemRecyclerViewAdapter.java
+++ b/app/src/main/java/kaufland/com/demo/example/MyItemRecyclerViewAdapter.java
@@ -1,5 +1,6 @@
 package kaufland.com.demo.example;
 
+import android.inputmethodservice.Keyboard;
 import android.os.Looper;
 import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
diff --git a/swipelibrary/src/main/java/kaufland/com/swipelibrary/DraggingProxy.java b/swipelibrary/src/main/java/kaufland/com/swipelibrary/DraggingProxy.java
index 8acf469..529c5ad 100644
--- a/swipelibrary/src/main/java/kaufland/com/swipelibrary/DraggingProxy.java
+++ b/swipelibrary/src/main/java/kaufland/com/swipelibrary/DraggingProxy.java
@@ -24,6 +24,9 @@ public class DraggingProxy {
     @Bean
     protected SwipeViewLayouter mSwipeViewLayouter;
 
+    @Bean
+    protected LayoutCache mLayoutCache;
+
     private boolean isInitilized;
 
 
@@ -136,4 +139,11 @@ public int getSurfaceOpenOffsetByDragView(int dragView) {
        return mSwipeViewLayouter.getViewEngines().get(dragView).getOpenOffset();
     }
 
+    public void captureChildrenBound() {
+        mLayoutCache.captureChildrenBound(mSwipeViewLayouter.getViews().values());
+    }
+
+    public void restoreChildrenBound() {
+        mLayoutCache.restoreOnLayout();
+    }
 }
diff --git a/swipelibrary/src/main/java/kaufland/com/swipelibrary/LayoutCache.java b/swipelibrary/src/main/java/kaufland/com/swipelibrary/LayoutCache.java
new file mode 100644
index 0000000..0fc0bf7
--- /dev/null
+++ b/swipelibrary/src/main/java/kaufland/com/swipelibrary/LayoutCache.java
@@ -0,0 +1,52 @@
+package kaufland.com.swipelibrary;
+
+import android.graphics.PointF;
+import android.view.View;
+
+import org.androidannotations.annotations.EBean;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Created by sbra0902 on 21.06.17.
+ */
+@EBean
+public class LayoutCache {
+
+
+    Map<View, PointF> mLayoutCache = new HashMap<>();
+
+
+    public void restoreOnLayout(){
+
+        for (View child : mLayoutCache.keySet()){
+
+            PointF restorePoint = mLayoutCache.get(child);
+
+            if(restorePoint != null){
+                child.setX(restorePoint.x);
+                child.setY(restorePoint.y);
+            }
+
+        }
+
+    }
+
+
+
+    public void captureChildrenBound(Collection<View> views){
+
+        for (View child : views) {
+            PointF point = mLayoutCache.get(child);
+            if(point==null){
+                point = new PointF();
+                mLayoutCache.put(child, point);
+            }
+
+            point.x = child.getX();
+            point.y = child.getY();
+        }
+    }
+}
diff --git a/swipelibrary/src/main/java/kaufland/com/swipelibrary/SwipeLayout.java b/swipelibrary/src/main/java/kaufland/com/swipelibrary/SwipeLayout.java
index 90bcdfa..cee80c5 100644
--- a/swipelibrary/src/main/java/kaufland/com/swipelibrary/SwipeLayout.java
+++ b/swipelibrary/src/main/java/kaufland/com/swipelibrary/SwipeLayout.java
@@ -48,6 +48,9 @@ public class SwipeLayout extends FrameLayout {
     @Bean
     protected DraggingProxy mDraggingProxy;
 
+    @Bean
+    protected LayoutCache mLayoutCache;
+
     private KDragViewHelper mDragHelper;
 
     private SwipeListener mSwipeListener;
@@ -56,7 +59,6 @@ public class SwipeLayout extends FrameLayout {
 
     private float mDragHelperTouchSlop;
 
-
     public interface SwipeListener {
         void onSwipeOpened(SwipeState.DragViewState openedDragView, boolean isFullSwipe);
 
@@ -247,6 +249,12 @@ public void run() {
 
     }
 
+    @Override
+    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
+        super.onLayout(changed, left, top, right, bottom);
+        mDraggingProxy.restoreChildrenBound();
+    }
+
     private class SwipeDragViewHelper extends ViewDragHelper.Callback {
 
         private ViewGroup parent;
@@ -264,6 +272,12 @@ public boolean tryCaptureView(View child, int pointerId) {
             return mDraggingProxy.isCapturedViewDraggable(child);
         }
 
+        @Override
+        public void onViewDragStateChanged(int state) {
+            if(state == 0){
+                mDraggingProxy.captureChildrenBound();
+            }
+        }
 
         @Override
         public void onViewPositionChanged(View changedView, int left, int top, int dx, int dy) {