Android Gridview bekommen Fokus

Question

Ich habe eine lineare Layout und ganz unten habe ich eine Gridview (HotelsGrid), die ich mit mehr Elemente zu sehen, das Problem ist, dass, nachdem ich meinen Adapter die Ansicht auf dem Bildschirm springt auf die unten, um die Gridview zu zeigen und ich muss oben bleiben, wie kann ich das erreichen?

Hier ist meine 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/hotel_detail" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical" 
    tools:context=".ActivityHotelDetail"> 

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

     <include 
      android:id="@+id/toolbar" 
      layout="@layout/toolbar"/> 

     <android.support.design.widget.TabLayout 
      android:id="@+id/tabs" 
      android:layout_width="match_parent" 
      android:layout_height="40dp" 
      android:background="@color/colorPrimaryDark" 
      android:hapticFeedbackEnabled="true" 
      app:tabGravity="fill" 
      app:tabIndicatorColor="@color/colorPrimary" 
      app:tabIndicatorHeight="3dp" 
      app:tabMode="fixed"/> 

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

    <android.support.v4.view.ViewPager 
     android:id="@+id/viewpager" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     app:layout_behavior="@string/appbar_scrolling_view_behavior" /> 

    <ScrollView 
     android:id="@+id/mainScroll" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content"> 

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

      <LinearLayout 
       android:layout_width="match_parent" 
       android:layout_height="match_parent" 
       android:layout_margin="@dimen/activity_vertical_margin" 
       android:background="@drawable/panel_with_border_nopadding" 
       android:orientation="vertical"> 

       <TextView 
        android:id="@+id/hotelName" 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content" 
        android:background="@drawable/fondo_titulo" 
        android:gravity="center" 
        android:paddingBottom="10sp" 
        android:text="Nombre del Hotel" 
        android:textAppearance="@android:style/TextAppearance.Large" 
        android:textColor="@color/textColorPrimary" 
        android:textSize="28sp"/> 

       <ImageView 
        android:id="@+id/hotelMainImage" 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content" 
        android:adjustViewBounds="true" 
        android:paddingLeft="1dp" 
        android:paddingRight="1dp" 
        android:scaleType="fitCenter" 
        android:src="@drawable/fondo_360"/> 

       <LinearLayout 
        android:id="@+id/video360" 
        android:layout_width="match_parent" 
        android:layout_height="match_parent" 
        android:orientation="vertical" 
        android:visibility="gone"> 

        <FrameLayout 
         android:layout_width="match_parent" 
         android:layout_height="wrap_content" 
         android:layout_alignParentTop="true" 
         android:layout_centerHorizontal="true"> 

         <com.google.vr.sdk.widgets.video.VrVideoView 
          android:id="@+id/video_view" 
          android:layout_width="match_parent" 
          android:layout_height="250dip" 
          android:scrollbars="@null"/> 

         <ImageView 
          android:id="@+id/playButton" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_gravity="center" 
          android:layout_marginBottom="10dip" 
          android:adjustViewBounds="true" 
          android:background="@drawable/playbutton" 
          android:scaleType="fitXY"/> 
        </FrameLayout> 

        <LinearLayout 
         android:layout_width="match_parent" 
         android:layout_height="wrap_content" 
         android:orientation="horizontal"> 

         <ImageButton 
          android:id="@+id/play_toggle" 
          android:layout_width="0dp" 
          android:layout_height="wrap_content" 
          android:layout_weight="1" 
          android:background="@android:color/transparent" 
          android:paddingStart="0dp" 
          android:paddingTop="4dp" 
          android:src="@drawable/play_on"/> 
         <!-- Seeking UI & progress indicator.--> 
         <SeekBar 
          android:id="@+id/seek_bar" 
          style="?android:attr/progressBarStyleHorizontal" 
          android:layout_width="0dp" 
          android:layout_height="32dp" 
          android:layout_weight="8"/> 

         <ImageButton 
          android:id="@+id/volume_toggle" 
          android:layout_width="0dp" 
          android:layout_height="wrap_content" 
          android:layout_weight="1" 
          android:background="@android:color/transparent" 
          android:paddingStart="0dp" 
          android:paddingTop="4dp" 
          android:src="@drawable/volume_on"/> 
        </LinearLayout> 
       </LinearLayout> 

       <TextView 
        android:id="@+id/hotelDistance" 
        android:layout_width="match_parent" 
        android:layout_height="26sp" 
        android:layout_marginBottom="@dimen/activity_vertical_margin" 
        android:layout_marginLeft="1dp" 
        android:layout_marginRight="1dp" 
        android:background="@drawable/fondo_distancia" 
        android:gravity="center" 
        android:text="distance" 
        android:textColor="@color/textColorPrimary"/> 

       <TextView 
        android:id="@+id/hotelAddress" 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content" 
        android:layout_alignParentStart="true" 
        android:layout_below="@+id/imagepreview" 
        android:layout_marginBottom="@dimen/activity_vertical_margin" 
        android:gravity="center" 
        android:text="Direccion" 
        android:textColor="@color/textColorSecundary"/> 

       <TextView 
        android:id="@+id/hotelDescription" 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content" 
        android:layout_marginBottom="@dimen/activity_vertical_margin" 
        android:gravity="center" 
        android:paddingLeft="@dimen/activity_horizontal_margin" 
        android:paddingRight="@dimen/activity_horizontal_margin" 
        android:text="Descripcion"/> 
      </LinearLayout> 

      <RelativeLayout 
       android:id="@+id/otherHotelsRL" 
       android:layout_width="match_parent" 
       android:layout_height="match_parent" 
       android:layout_marginLeft="@dimen/activity_vertical_margin" 
       android:layout_marginRight="@dimen/activity_vertical_margin" 
       android:layout_marginTop="20dp" 
       android:background="@drawable/panel_with_border_nopadding" 
       android:paddingLeft="1dp" 
       android:paddingRight="1dp"> 

       <TextView 
        android:id="@+id/otherViewsTxt" 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content" 
        android:gravity="center" 
        android:paddingBottom="10dp" 
        android:paddingTop="10dp" 
        android:text="Fotos" 
        android:textColor="@color/textColorSecundary" 
        android:textSize="22sp"/> 

       <HorizontalScrollView 
        android:layout_width="match_parent" 
        android:layout_height="match_parent" 
        android:layout_alignParentStart="true" 
        android:layout_below="@+id/otherViewsTxt" 
        android:layout_marginBottom="10dp" 
        android:fillViewport="true"> 

        <LinearLayout 
         android:layout_width="wrap_content" 
         android:layout_height="match_parent" 
         android:orientation="horizontal"> 

         <ImageView 
          android:id="@+id/thumb1" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_marginEnd="5dp" 
          android:layout_weight="1" 
          android:src="@mipmap/icon_360"/> 

         <ImageView 
          android:id="@+id/thumb2" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_below="@+id/thumb1" 
          android:layout_marginEnd="5dp" 
          android:layout_weight="1" 
          android:src="@mipmap/icon_360"/> 

         <ImageView 
          android:id="@+id/thumb3" 
          android:layout_width="wrap_content" 
          android:layout_height="wrap_content" 
          android:layout_below="@+id/thumb2" 
          android:layout_weight="1" 
          android:src="@mipmap/icon_360"/> 
        </LinearLayout> 
       </HorizontalScrollView> 

       <ImageView 
        android:id="@+id/imageView" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:layout_alignParentStart="true" 
        android:layout_centerVertical="true" 
        android:layout_weight="1" 
        android:alpha="0.8" 
        android:background="#222222" 
        app:srcCompat="@drawable/ic_chevron_left_white_24dp"/> 

       <ImageView 
        android:id="@+id/imageView2" 
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content" 
        android:layout_alignParentEnd="true" 
        android:layout_centerVertical="true" 
        android:layout_weight="1" 
        android:alpha="0.8" 
        android:background="#222222" 
        app:srcCompat="@drawable/ic_chevron_right_white_24dp"/> 
      </RelativeLayout> 

      <LinearLayout 
       android:layout_width="match_parent" 
       android:layout_height="match_parent" 
       android:layout_marginBottom="30dp" 
       android:layout_marginLeft="@dimen/activity_vertical_margin" 
       android:layout_marginRight="@dimen/activity_vertical_margin" 
       android:layout_marginTop="20dp" 
       android:orientation="vertical" 
       android:paddingBottom="1dp" 
       android:paddingLeft="1dp" 
       android:paddingRight="1dp"> 

       <TextView 
        android:id="@+id/otherHotelsTxt" 
        android:layout_width="match_parent" 
        android:layout_height="wrap_content" 
        android:layout_marginBottom="5dp" 
        android:background="@drawable/panel_with_border_padding" 
        android:gravity="center" 
        android:paddingBottom="10dp" 
        android:paddingTop="10dp" 
        android:text="Mas Hoteles Interesantes" 
        android:textColor="@color/textColorSecundary" 
        android:textSize="22sp"/> 

       <GridView 
        android:id="@+id/hotelsGrid" 
        android:layout_width="match_parent" 
        android:layout_height="350dp" 
        android:layout_marginTop="@dimen/activity_vertical_margin" 
        android:horizontalSpacing="15dp" 
        android:numColumns="2" 
        android:stretchMode="columnWidth" 
        android:verticalSpacing="15dp"/> 
      </LinearLayout> 
     </LinearLayout> 
    </ScrollView> 
</LinearLayout> 

Answer 1

fügen Sie diese zu Ihrer Top-Level-Layout-Ansicht --Linearlayout. es foucsable

<LinearLayout 
android:id="@+id/top_layout" 
android:focusable="true" 
android:focusableInTouchMode="true"> 

Jetzt in Aktivität zu machen:

LinearLayout layout = (LinearLayout) findViewById(R.id.top_layout); 
layout.requestFocus(); 

Anruf layout.requestFocus(); nach u Der Adapter