I'm using a recyclerview inside NestedScrollView and I want to pin my search bar to action bar after scrolling and recyclerview items must show under searchbar, I need to make lazy load for my recyclerview items (load next items from server after scrolling to end) for this I need to check recyclerview scroll change state and I can't do this perfectly when I use recyclerview inside nestedscrollview. I tried using nestedscrollview scroll state change listener and it doesn't give me what I want and doesn't work right.
Nested scroll view is not working if it's placed inside recyclerview. I have lazy load recyclerview but same layout contain other layouts like slider, menus then recyclerview. I want to scroll full layout and when recyclerview ends onscroll then onload execute to get more item from internet and load in recylerview.
Here you see my codes:
my layout xml code
<android.support.design.widget.CoordinatorLayout android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/main_activity_background"> <android.support.design.widget.AppBarLayout android:id="@+id/app_bar_layout" android:layout_width="match_parent" android:layout_height="200dp" android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"> <android.support.design.widget.CollapsingToolbarLayout android:id="@+id/collapsing_toolbar" android:layout_width="match_parent" android:layout_height="match_parent" app:contentScrim="@color/colorPrimaryDark" app:expandedTitleTextAppearance="@style/TextAppearance.AppCompat.Headline" app:layout_scrollFlags="scroll|exitUntilCollapsed" app:titleEnabled="false"> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <android.support.v4.view.ViewPager android:id="@+id/pager" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:layout_alignParentTop="true" /> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:background="@drawable/bg_gradient" android:orientation="vertical" android:gravity="center_horizontal" android:paddingBottom="5dp" android:paddingLeft="@dimen/spacing_large" android:paddingRight="@dimen/spacing_large" android:paddingTop="@dimen/spacing_mxlarge"> <LinearLayout android:id="@+id/layout_dots" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_gravity="center" android:gravity="center" android:orientation="horizontal" /> </RelativeLayout> </RelativeLayout> </android.support.design.widget.CollapsingToolbarLayout> </android.support.design.widget.AppBarLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" app:layout_behavior="@string/appbar_scrolling_view_behavior"> <android.support.v7.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_gravity="bottom" app:contentInsetStartWithNavigation="0dp" app:layout_collapseMode="pin" app:popupTheme="@style/ThemeOverlay.AppCompat.Light" android:contentInsetLeft="0dp" android:contentInsetStart="0dp" app:contentInsetLeft="0dp" app:contentInsetStart="0dp" android:contentInsetRight="0dp" android:contentInsetEnd="0dp" app:contentInsetRight="0dp" app:contentInsetEnd="0dp"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginLeft="5dp" android:layout_marginRight="5dp" android:focusable="true" android:focusableInTouchMode="true" android:background="@drawable/searchbox_stroke_bg" android:orientation="horizontal"> <EditText android:layout_width="0dp" android:layout_weight="0.9" android:layout_height="40dp" android:hint="@string/search" android:textDirection="locale" android:textAlignment="viewStart" android:drawablePadding="10dp" android:layout_gravity="start" android:paddingStart="15dp" android:textColor="@color/searchbox_stroke" android:maxLines="1" android:singleLine="true" android:maxLength="25" android:textSize="17sp" android:paddingEnd="5dp" android:background="@android:color/transparent" android:theme="@style/MainSearchEditTextTheme" android:drawableStart="@drawable/ic_search"/> <ImageView android:layout_width="0dp" android:layout_weight="0.1" android:layout_height="16dp" android:src="@drawable/ic_filter" android:layout_gravity="center_vertical" /> </LinearLayout> </android.support.v7.widget.Toolbar> <android.support.v4.widget.NestedScrollView android:layout_width="match_parent" android:layout_height="match_parent" android:clipToPadding="false" android:id="@+id/main_nested_scrollView" app:layout_behavior="@string/appbar_scrolling_view_behavior"> <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <android.support.v7.widget.RecyclerView android:layout_width="match_parent" android:layout_height="match_parent" android:scrollbars="vertical" android:scrollingCache="true" android:nestedScrollingEnabled="false" android:id="@+id/main_recyclerview" android:layout_marginBottom="5dp"/> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/more_items_progress" android:visibility="gone"> <ProgressBar android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/progress_bar" android:indeterminate="true"/> </LinearLayout> </LinearLayout> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/lyt_progress" android:layout_centerInParent="true" android:layout_marginTop="100dp" android:orientation="vertical"> <com.armanjafari.raimon.widget.ViewLoadingDotsBounce android:layout_width="50dp" android:layout_height="40dp" android:layout_centerHorizontal="true" android:background="@color/colorAccent"> </com.armanjafari.raimon.widget.ViewLoadingDotsBounce> </LinearLayout> </RelativeLayout> </android.support.v4.widget.NestedScrollView> </LinearLayout> </android.support.design.widget.CoordinatorLayout> My code to check scroll state and it didn't work
nested_content.setOnScrollChangeListener(new NestedScrollView.OnScrollChangeListener() { @Override public void onScrollChange(NestedScrollView v, int scrollX, int scrollY, int oldScrollX, int oldScrollY) { if (scrollY < oldScrollY) { // up ((MainActivity)getActivity()).animateNavigation(false); } if (scrollY > oldScrollY) { // down ((MainActivity)getActivity()).animateNavigation(true); } if (scrollY == ( v.getChildAt(0).getMeasuredHeight() - v.getMeasuredHeight() )) { if (!is_loading) { if (current_page < all_pages) { //not work right scroll state } } } } }); 
