Ich versuche, das Suchfeld wie in der Airbnb-Android-App zu erstellen. Also benutze ich CoorinatorLayout mit Toolbar und RecyclerView.

Aber wenn ich neben diesen beiden Dingen etwas in den Koordinator einfüge, wird es nicht angezeigt. Hier ist mein Code:

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

<android.support.design.widget.AppBarLayout
    android:id="@+id/appbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="@color/red"
        app:layout_scrollFlags="scroll|enterAlways" />

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

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginLeft="50dp"
    android:layout_marginRight="50dp"
    android:layout_marginTop="20dp"
    android:background="@drawable/rounded_background"
    android:orientation="horizontal"
    android:padding="6dp"
    app:layout_scrollFlags="scroll|enterAlways">

    <EditText
        android:id="@+id/search"
        android:layout_width="0dp"
        android:layout_height="fill_parent"
        android:layout_weight="6"
        android:background="@null"
        android:fontFamily="sans-serif-light"
        android:hint="Unesite grad"
        android:paddingLeft="16dp"
        android:paddingStart="16dp" />

    <ImageView
        android:id="@+id/cancelSearch"
        android:layout_width="0dp"
        android:layout_height="40dp"
        android:layout_weight="1"
        android:padding="10dp"
        android:src="@drawable/ic_cancel" />
</LinearLayout>

<android.support.v7.widget.RecyclerView
    android:id="@+id/recyclerView"
    android:layout_width="match_parent"
    android:layout_height="fill_parent"
    android:layout_below="@id/appbar"
    android:background="#ffffff"
    app:layout_behavior="@string/appbar_scrolling_view_behavior" />

Aber tatsächlich, wenn dies sogar funktioniert, hätte ich die Mühe, das Suchfeld über dem RecyclerView zu platzieren.

Ich habe versucht, alles in das @ zu setz RelativeLayout aber das hat nicht funktioniert.

Hier ist auch das Bild von dem, was ich versuche zu machen

BEARBEITEN

Hier ist der Code mit RelativeLayout

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

   <RelativeLayout
       android:layout_width="match_parent"
       android:layout_height="match_parent">

       <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:background="#00000000">

           <android.support.v7.widget.Toolbar
               android:id="@+id/toolbar"
               android:layout_width="match_parent"
               android:layout_height="?attr/actionBarSize"
               android:background="@color/red"
               app:layout_scrollFlags="scroll|enterAlways"/>
   </android.support.design.widget.AppBarLayout>

   <RelativeLayout
       android:layout_width="fill_parent"
       android:layout_height="fill_parent">
       <LinearLayout
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_marginLeft="50dp"
          android:layout_marginRight="50dp"
          android:layout_marginTop="20dp"
          android:background="@drawable/rounded_background"
          android:orientation="horizontal"
          android:padding="6dp"
          app:layout_scrollFlags="scroll|enterAlways">

          <EditText
              android:id="@+id/search"
              android:layout_width="0dp"
              android:layout_height="fill_parent"
              android:layout_weight="6"
              android:background="@null"
              android:fontFamily="sans-serif-light"
              android:hint="Unesite grad"
              android:paddingLeft="16dp"
              android:paddingStart="16dp" />

          <ImageView
              android:id="@+id/cancelSearch"
              android:layout_width="0dp"
              android:layout_height="40dp"
              android:layout_weight="1"
              android:padding="10dp"
              android:src="@drawable/ic_cancel" />
      </LinearLayout>
      <android.support.v7.widget.RecyclerView
           android:id="@+id/recyclerView"
           android:layout_width="match_parent"
           android:layout_height="fill_parent"
           android:layout_below="@id/appbar"
           android:background="#ffffff"
           app:layout_behavior="@string/appbar_scrolling_view_behavior" />
   </RelativeLayout>