Merge pull request #156 from Omega-R/add_padding_to_view_pager

add padding treatment

Author: anton-knyazev

app/src/main/res/layout/activity_view_pager.xml

@@ -17,10 +17,13 @@
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:orientation="horizontal"
+        android:paddingLeft="10dp"
+        android:clipChildren="false"
+        android:clipToPadding="false"
         app:autoScrollEnabled="true"
-        app:autoScrollInterval="2500"
         app:pageSize="1"
         app:transformer="RotateUpTransformer"
         app:infinite="true"/>
+    <!--        app:autoScrollInterval="2500"-->
 
 </LinearLayout>

app/src/main/res/layout/item_image.xml

@@ -9,7 +9,7 @@
     <ImageView
         android:id="@+id/imageview"
         android:layout_height="250dp"
-        android:layout_width="match_parent"
+        android:layout_width="wrap_content"
         android:scaleType="fitXY"
         tools:src="@drawable/image_1"/>
 

omegarecyclerview/src/main/java/com/omega_r/libs/omegarecyclerview/viewpager/ViewPagerLayoutManager.java

@@ -190,8 +190,8 @@ private View getMeasuredChildForAdapterPosition(int position, RecyclerView.Recyc
         View view = recycler.getViewForPosition(calculateRealPosition(position));
         addView(view);
 
-        int width = getWidth();
-        int height = getHeight();
+        int width = getWidth() - getPaddingLeft() - getPaddingRight();
+        int height = getHeight() - getPaddingTop() - getPaddingBottom();
         switch (mOrientation) {
             case HORIZONTAL:
                 width *= mPageSize;
@@ -251,15 +251,22 @@ private int getMeasuredHeightWithMargin(View child) {
     }
 
     private void updateRecyclerDimensions() {
-        mRecyclerCenterPoint.set(getWidth() / 2, getHeight() / 2);
+        mRecyclerCenterPoint.set(
+                (getWidth() + getPaddingLeft() - getPaddingRight()) / 2,
+                (getHeight() + getPaddingTop() - getPaddingBottom()) / 2
+        );
     }
 
     private void fill(RecyclerView.Recycler recycler) {
         cacheAndDetachAttachedViews();
 
         mOrientationHelper.setCurrentViewCenter(mRecyclerCenterPoint, mScrolled, mCurrentViewCenterPoint);
 
-        final int endBound = mOrientationHelper.getViewEnd(getWidth(), getHeight());
+        final int endBound = getClipToPadding() ?
+                mOrientationHelper.getViewEnd(
+                        getWidth() - getPaddingRight(),
+                getHeight() - getPaddingBottom())
+                : mOrientationHelper.getViewEnd(getWidth(), getHeight());
 
         if (mScrolled >= 0) {
             layoutViews(recycler, Direction.START, endBound); //Layout items before the current item