RecyclerView는 NestedScrollView 내에서 사용할 때 뷰를 재활용하지 않습니다.

RecyclerView는 NestedScrollView 내에서 사용할 때 뷰를 재활용하지 않습니다.

---

나는 RecyclerView내부를 사용하고 있습니다 NestedScrollView. 또한 나는 setNestedScrollingEnabled거짓으로 설정 했다.recyclerview

하위 API 지원

ViewCompat.setNestedScrollingEnabled(mRecyclerView, false);

지금! 사용자가보기를 스크롤하면 모든 것이 괜찮아 보이지만 !!! recyclerview의보기는 재활용되지 않습니다 !!! 힙 크기가 빠르게 커집니다 !!

업데이트 : RecyclerView 레이아웃 관리자는StaggeredLayoutManager

fragment_profile.xml :

<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/coordinator"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

        <android.support.design.widget.AppBarLayout
            android:id="@+id/appbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" >
        </android.support.design.widget.AppBarLayout>

        <android.support.v4.widget.SwipeRefreshLayout
            android:id="@+id/profileSwipeRefreshLayout"
            android:layout_width="match_parent"
            android:layout_height="match_parent" >

                <!-- RecyclerView and NestedScrollView -->
                <include layout="@layout/fragment_profile_details" />

        </android.support.v4.widget.SwipeRefreshLayout>

</android.support.design.widget.CoordinatorLayout>

fragment_profile_details.xml :

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/rootLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    android:orientation="vertical" >

        <android.support.v4.widget.NestedScrollView
            android:id="@+id/nested_scrollbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_gravity="fill_vertical"
            app:layout_behavior="@string/appbar_scrolling_view_behavior"
            android:fillViewport="true"
            android:scrollbars="none" >

                <LinearLayout
                    android:id="@+id/nested_scrollbar_linear"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:descendantFocusability="blocksDescendants"
                    android:orientation="vertical" >

                        <android.support.v7.widget.CardView
                            android:id="@+id/profileCardview"
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            app:cardBackgroundColor="@color/card_backgroind"
                            app:cardCornerRadius="0dp"
                            app:cardElevation="0dp" >

                            <!-- Profile related stuff like avatar and etc. --->

                        </android.support.v7.widget.CardView>

                        <android.support.v7.widget.RecyclerView
                            android:id="@+id/list_view"
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            android:layout_marginBottom="@dimen/four"
                            android:layout_marginEnd="@dimen/four"
                            android:layout_marginLeft="@dimen/four"
                            android:layout_marginRight="@dimen/four"
                            android:layout_marginStart="@dimen/four"
                            android:layout_marginTop="@dimen/four"
                            app:layout_behavior="@string/appbar_scrolling_view_behavior"
                            android:clipToPadding="false" />

                </LinearLayout>
        </android.support.v4.widget.NestedScrollView>
</LinearLayout>

ProfileFragment.java :

mAdapter        = new MainAdapter(getActivity(), glide, Data);

listView        = (RecyclerView) view.findViewById(R.id.list_view);

ViewCompat.setNestedScrollingEnabled(listView, false);  
listView.setAdapter(mAdapter);

mStaggeredLM    = new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL);
mStaggeredLM.setGapStrategy(StaggeredGridLayoutManager.GAP_HANDLING_MOVE_ITEMS_BETWEEN_SPANS);

listView.setLayoutManager(mStaggeredLM);

mScroll.setOnScrollChangeListener(new OnScrollChangeListener() {

        @Override
        public void onScrollChange(NestedScrollView arg0, int arg1, int arg2, int arg3, int arg4) {

            View view   = (View) mScroll.getChildAt(mScroll.getChildCount() - 1);
            int diff    = (view.getBottom() - ( mScroll.getHeight() + mScroll.getScrollY()));

            if(diff == 0){

                int visibleItemCount            = mStaggeredLM.getChildCount();
                int totalItemCount              = mStaggeredLM.getItemCount();

                int[] lastVisibleItemPositions  = mStaggeredLM.findLastVisibleItemPositions(null);
                int lastVisibleItemPos  = getLastVisibleItem(lastVisibleItemPositions);

                Log.e("getChildCount", String.valueOf(visibleItemCount));
                Log.e("getItemCount", String.valueOf(totalItemCount));
                Log.e("lastVisibleItemPos", String.valueOf(lastVisibleItemPos));

                if ((visibleItemCount + 5) >= totalItemCount) {

                    mLoadMore.setVisibility(View.VISIBLE);
                    Log.e("LOG", "Last Item Reached!");
                }

                mMore = true;
                mFresh = false;
                mRefresh = false;
                getPosts();
            }

        }

    });

추신 : 나는 recyclerview그것을 계속하고 멈추지 않기 때문에 스크롤보기에 더 많은 것을 설정 했습니다!

어떤 도움을 주시면 감사하겠습니다

---

이는 스크롤 뷰 내부에 스크롤 동작이있는 리사이클 러 뷰가 있기 때문입니다. (스크롤 안쪽으로 스크롤)

I think the best way to resolve this issue is to your profileCardview as a header in your recycler view and then remove the nested scroll view.

If it were a listview then it was as simple as listView.addHeaderView(profileCardView) but for the Recycler view there is no addheadview equivalent. Hence you could refer the below link to change your implementation.

Is there an addHeaderView equivalent for RecyclerView?

---

For a RecyclerView or ListView the height should be constant, because if it will not a constant size then how it will manage the maximum number of visible rows in memory. Try by changing RecyclerView attribute android:layout_height="match_parent" instead of "wrap_content". It should improve your memory management.

ReferenceURL : https://stackoverflow.com/questions/37590651/recyclerview-does-not-recycling-views-when-use-it-inside-nestedscrollview