Brightcove Player Android SDK-不支持全屏

Question

如何在Brightcove播放器中强制全屏显示？ 我已将BrightcoveExoPlayerVideoView放入Android的标准design.widget.AppBarLayout中，它停止工作-没有全屏支持。

问题在于，全屏在AppBarLayout外部可以正常工作，而在其中却无法正常工作。

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


    <!-- PLAYER'S FULLSCREEN WORKS HERE -->
    <!--<com.brightcove.player.view.BrightcoveExoPlayerVideoView-->
        <!--android:id="@+id/brightcove_video_view"-->
        <!--android:layout_width="match_parent"-->
        <!--android:layout_height="280dp"-->
        <!--android:layout_gravity="center_horizontal|top"-->
        <!--android:contentDescription="sample content description"-->
        <!--android:fitsSystemWindows="true"-->
        <!--android:paddingTop="16dp"-->
        <!--android:scaleType="fitXY"-->
        <!--app:layout_collapseMode="parallax"/>-->

    <android.support.design.widget.CoordinatorLayout
        android:id="@+id/video_details_coordinator_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#00FF00"
        android:fitsSystemWindows="true">

        <android.support.design.widget.AppBarLayout
            android:id="@+id/video_details_appbar"
            android:layout_width="match_parent"
            android:layout_height="240dp"
            android:background="#00FF00"
            android:fitsSystemWindows="true"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

            <android.support.design.widget.CollapsingToolbarLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:animateLayoutChanges="true"
                android:fitsSystemWindows="true"
                app:contentScrim="#FF0000"
                app:layout_scrollFlags="scroll|exitUntilCollapsed"
                app:statusBarScrim="#FF0000">

                <!-- PLAYER'S FULLSCREEN DOES NOT WORK HERE -->
                <com.brightcove.player.view.BrightcoveExoPlayerVideoView
                    android:id="@+id/brightcove_video_view"
                    android:layout_width="match_parent"
                    android:layout_height="280dp"
                    android:layout_gravity="center_horizontal|top"
                    android:contentDescription="sample content description"
                    android:fitsSystemWindows="true"
                    android:paddingTop="16dp"
                    android:scaleType="fitXY"
                    app:layout_collapseMode="parallax"/>

                <android.support.v7.widget.Toolbar
                    android:id="@+id/video_details_toolbar"
                    android:layout_width="match_parent"
                    android:layout_height="?attr/actionBarSize"
                    app:layout_collapseMode="pin"
                    app:popupTheme="@style/ThemeOverlay.AppCompat.Light">

                    <ImageView
                        android:id="@+id/video_details_back_button"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:contentDescription="Sample description"
                        android:padding="8dp"
                        android:src="@drawable/ic_back"/>

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

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

        <android.support.v4.widget.NestedScrollView
            android:id="@+id/video_details_scroll_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:clipToPadding="false"
            android:scrollbars="vertical"
            app:layout_behavior="@string/appbar_scrolling_view_behavior">

            <LinearLayout
                android:id="@+id/video_details_content_view"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="15dp"
                android:layout_marginRight="15dp"
                android:orientation="vertical">

                <TextView
                    android:id="@+id/video_details_category"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginTop="21dp"
                    android:fontFamily="sans-serif"
                    android:lineSpacingExtra="6sp"
                    android:text="SAMPLE CATEGORY"
                    android:textAllCaps="true"
                    android:textColor="#FF0000"
                    android:textSize="12sp"
                    android:textStyle="bold"
                    tools:text="HIGHLIGHTS"/>

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

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

</LinearLayout>

主要活动：

public class MainActivity extends BrightcovePlayer {

    [...]

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        setContentView(R.layout.activity_main);
        brightcoveVideoView = (BrightcoveExoPlayerVideoView) findViewById(R.id.brightcove_video_view);
        super.onCreate(savedInstanceState);

        [...]
    }

    [...]
}