我试图在 NestedScrollView 中放置一个 RecyclerView。问题是,如果我将 RecyclerView 放置在水平 LinearLayout 中,则显示回收器视图。但是,如果我将它放入 Vertical LinearLayout 它不会显示出来。这是我尝试过的东西:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<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.CollapsingToolbarLayout
android:id="@+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginBottom="32dp"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="80dp">
<android.support.v7.widget.Toolbar
android:id="@+id/anim_toolbar"
android:layout_width="match_parent"
android:layout_height="20dp"
android:background="@color/AppBrightRed"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
<ImageView
android:layout_width="50dp"
android:layout_height="50dp"
android:src="@drawable/ic_appicon"
android:layout_marginLeft="10dp"
android:layout_gravity="bottom|left" />
</FrameLayout>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:id="@+id/scroll"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipToPadding="false"
app:layout_behavior="@string/appbar_scrolling_view_behavior">
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:orientation="vertical">
<fragment
android:id="@+id/map"
android:layout_width="match_parent"
android:layout_height="200dp"
android:name="com.google.android.gms.maps.MapFragment"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView"
android:scrollbars="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:orientation="horizontal"
android:layout_marginTop="10dp">
<AutoCompleteTextView
android:layout_height="wrap_content"
android:layout_width="180dp"
android:hint="LOCATION"
android:id="@+id/ATView" />
<Button
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Checkin"
android:textColor="@color/AppBackground"
android:id="@+id/btnCheckin"
android:background="@color/AppBrightRed" />
<android.support.v7.widget.RecyclerView ----DOES NOT SHOW IF PLACED HERE
android:id="@+id/recyclerView"
android:scrollbars="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
我该如何解决这个问题?