sheishuoAPP/uikit/res/layout/nim_watch_video_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:background="@color/black"
    android:orientation="vertical">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/app_bar_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay"
        app:elevation="0dp">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:titleTextAppearance="@style/Toolbar.TitleText">

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

    <RelativeLayout
        android:id="@+id/rlSur"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_gravity="center"
        android:orientation="horizontal">

        <SurfaceView
            android:id="@+id/videoView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:visibility="visible" />

        <ImageView
            android:id="@+id/videoIcon"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:contentDescription="@string/empty"
            android:src="@drawable/nim_video_play_icon_selector"
            android:visibility="gone" />

        <LinearLayout
            android:id="@+id/layoutDownload"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:orientation="vertical"
            android:visibility="visible">

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:contentDescription="@string/empty"
                android:src="@drawable/nim_video_play_icon_selector" />

            <FrameLayout
                android:layout_width="240dip"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:layout_marginBottom="16dip"
                android:layout_marginTop="10dip"
                android:paddingLeft="27dip">

                <ImageView
                    android:id="@+id/downloadProgressBackground"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:layout_gravity="center_horizontal"
                    android:layout_marginRight="27dip"
                    android:background="@drawable/nim_watch_video_download_progress_background"
                    android:contentDescription="@string/empty" />

                <ImageView
                    android:id="@+id/downloadProgressForeground"
                    android:layout_width="111dip"
                    android:layout_height="wrap_content"
                    android:layout_marginRight="27dip"
                    android:background="@drawable/nim_watch_video_download_progress_foreground"
                    android:contentDescription="@string/empty" />

                <ImageView
                    android:id="@+id/control_download_btn"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="right|center_vertical"
                    android:src="@drawable/nim_icon_download_pause" />
            </FrameLayout>

            <TextView
                android:id="@+id/downloadProgressText"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal" />
        </LinearLayout>

        <TextView
            android:id="@+id/lblVideoFileInfo"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignLeft="@id/videoView"
            android:layout_below="@id/videoView"
            android:layout_marginTop="10dip"
            android:textColor="@color/color_grey_999999"
            android:textSize="12dip" />

        <TextView
            android:id="@+id/lblVideoTimes"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignRight="@id/videoView"
            android:layout_alignTop="@id/lblVideoFileInfo"
            android:gravity="right"
            android:textColor="@color/color_grey_999999"
            android:textSize="12dip" />
    </RelativeLayout>

</RelativeLayout>