Recycler View loading very slow for large data when inside NestedScrollView

问题

I have added RecyclerView inside my NestedScrollView. Basically I want RecyclerView to scroll with other Views. The problem that I am facing is that for a small set of data, it is working fine, but for a large set of data(200 entries) whenever I launch the activity, it freezes for about about 3-5 seconds and then loads. I removed the NestedScrollView and it is working flawlessly, but it doesn't provide me the behaviour I want.

(For extra info, I am loading the data from SQLite database. There is no problem in scrolling, as it is smooth. The only problem is the activity is freezing for a while)

<android.support.v4.widget.NestedScrollView
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical">

                <... Some other Views ...>

                <android.support.v7.widget.RecyclerView
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:orientation="vertical">

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

            </LinearLayout>

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

回答1:

This case of RecyclerView inside NestedScrollView.

RecyclerView is calling onCreateViewHolder() times equal to your data size.

If data has 200 items, it freezes for onCreateViewHolder() to be called 200 times.

回答2:

As said by Nancy , recyclerview.setNestedScrollingEnabled(false); will solve scroll stuck issue. i too faced this type of issue and solved by false the NestedScroll.

来源：https://stackoverflow.com/questions/44580892/recycler-view-loading-very-slow-for-large-data-when-inside-nestedscrollview