android – 在scrollview或nestedScrollview中看不到Recylerview

概述我想在NestedScrollView中放置一个RecylerView,如下所示 activity_service_menu.xml <android.support.v4.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="matc 我想在nestedScrollVIEw中放置一个RecylerVIEw,如下所示

activity_service_menu.xml

<androID.support.v4.Widget.nestedScrollVIEw xmlns:androID="http://schemas.androID.com/apk/res/androID"    androID:layout_wIDth="match_parent"    androID:layout_height="match_parent">    <linearLayout        androID:layout_wIDth="match_parent"        androID:layout_height="wrap_content"        androID:orIEntation="vertical">        <TextVIEw            androID:layout_wIDth="wrap_content"            androID:layout_height="wrap_content"            androID:text="HELLO" />        <androID.support.v7.Widget.RecyclerVIEw            androID:ID="@+ID/rv"            androID:layout_wIDth="match_parent"            androID:layout_height="wrap_content"            androID:layout_margin="8dp" />    </linearLayout></androID.support.v4.Widget.nestedScrollVIEw>

ServiceMenuActivity.java

public class ServiceMenuTActivity extends AppCompatActivity {    @OverrIDe    protected voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.activity_service_menu_t);        Toolbar toolbar = (Toolbar) findVIEwByID(R.ID.toolbar);        setSupportActionbar(toolbar);        RecyclerVIEw rv = (RecyclerVIEw) findVIEwByID(R.ID.rv);        rv.setLayoutManager(new linearlayoutmanager(getApplicationContext()));        rv.setHasFixedSize(true);        rv.setAdapter(new RvAdapter());    }    private static class RvAdapter extends RecyclerVIEw.Adapter<RvAdapter.RvHolder> {        @OverrIDe        public RvHolder onCreateVIEwHolder(VIEwGroup parent,int vIEwType) {            VIEw serviceMenuItemVIEw = LayoutInflater.from(parent.getContext()).inflate(R.layout.List_item_service_menu,parent,false);            return new RvHolder(serviceMenuItemVIEw);        }        @OverrIDe        public voID onBindVIEwHolder(RvHolder holder,int position) {        }        @OverrIDe        public int getItemCount() {            return 100;        }        public static class RvHolder extends RecyclerVIEw.VIEwHolder {            public RvHolder(VIEw itemVIEw) {                super(itemVIEw);            }        }    }}

我已将linearLayout放在scrollVIEw和nestedScrollVIEw中.
但是RecyclerVIEw不可见.如果我用FrameLayout或任何其他布局替换ScrollVIEw,则可以看到RecyclerVIEw.

我想使用nestedScrollVIEw并在滚动recyclerVIEw时滚动总布局.不幸的是,甚至看不到recyclerVIEw.

解决方法 按照这个样本将了解你做错的地方.
主线是：androID：fillVIEwport =“true”.

<androID.support.v4.Widget.nestedScrollVIEw        androID:layout_wIDth="match_parent"        androID:layout_height="wrap_content"        androID:fillVIEwport="true"        androID:theme="@style/themeOverlay.AppCompat.light"        app:layout_behavior="@string/appbar_scrolling_vIEw_behavior">    <linearLayout        androID:layout_wIDth="match_parent"        androID:layout_height="wrap_content"        androID:orIEntation="vertical"        androID:paddingtop="24dp">        <androID.support.v7.Widget.CardVIEw            androID:layout_wIDth="match_parent"            androID:layout_height="wrap_content"            androID:padding="16dp">        <com.app.vIEw.CustomrecyclerVIEw            androID:ID="@+ID/recycler_movIE_suggestion"            androID:layout_wIDth="match_parent"            androID:layout_height="170dp"            androID:fillVIEwport="true"            app:layout_behavior="@string/appbar_scrolling_vIEw_behavior" />    </androID.support.v7.Widget.CardVIEw>    </linearLayout>    </androID.support.v4.Widget.nestedScrollVIEw>

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