text: <?xml version="1.0" encoding="utf-8"?>
  <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      >
      <include
          layout="@layout/video_adjust_layout"></include>
      <include
          android:layout_width="match_parent"
          android:layout_height="30dp"
          android:layout_alignParentTop="true"
          layout="@layout/video_title"></include>
      <LinearLayout
          android:orientation="vertical"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_alignParentBottom="true"
          >
          <Switch
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:id="@+id/switch_tanmu"
              android:textOn="关闭弹幕"
              android:textOff="开启弹幕"
              android:textSize="8dp"
              android:layout_gravity="right|bottom"
              android:checked="false" />
      <RelativeLayout
          android:id="@+id/mediacontroller_seekbar_layout"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:orientation="horizontal"
          android:background="@color/mediacontroller_bg"
          >
  
          <TextView
              android:id="@+id/mediacontroller_time_current"
              style="@style/MediaController_Text"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:layout_centerVertical="true"
              />
  
          <TextView
              android:id="@+id/mediacontroller_time_total"
              style="@style/MediaController_Text"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:layout_alignParentRight="true"
              android:layout_centerVertical="true"
              android:layout_marginRight="25dp" />
  
          <SeekBar
              android:id="@+id/mediacontroller_seekbar"
              style="@style/MediaController_SeekBar"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:layout_centerVertical="true"
              android:layout_toLeftOf="@id/mediacontroller_time_total"
              android:layout_toRightOf="@id/mediacontroller_time_current"
              android:focusable="true"
              android:max="1000" />
  
      </RelativeLayout>
  
      <RelativeLayout
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_below="@+id/mediacontroller_seekbar_layout"
          android:gravity="center_horizontal"
          android:background="@color/mediacontroller_bg"
          >
  
          <ImageView
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:id="@+id/mediacontroller_snapshot"
              android:background="@drawable/mediacontroller_snapshot"
              android:layout_centerVertical="true"
              />
  
          <ImageView
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:id="@+id/mediacontroller_previous"
              android:background="@drawable/mediacontroller_previous"
              android:layout_toRightOf="@+id/mediacontroller_snapshot"
              android:layout_marginLeft="25dp"
              android:layout_centerVertical="true"
              />
  
          <ImageButton
              android:id="@+id/mediacontroller_play_pause"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:background="@drawable/mediacontroller_button"
              android:contentDescription="@string/mediacontroller_play_pause"
              android:src="@drawable/mediacontroller_pause"
              android:layout_toRightOf="@+id/mediacontroller_previous"
              android:layout_marginLeft="25dp"
              android:layout_centerVertical="true"
              />
          <ImageView
              android:id="@+id/mediacontroller_next"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:src="@drawable/mediacontroller_next"
              android:layout_toRightOf="@+id/mediacontroller_play_pause"
              android:layout_marginLeft="25dp"
              android:layout_centerVertical="true"
              />
          <ImageView
              android:id="@+id/mediacontroller_screen_fit"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:background="@drawable/mediacontroller_screen_fit"
              android:layout_toRightOf="@+id/mediacontroller_next"
              android:layout_marginLeft="25dp"
              android:layout_centerVertical="true"
              />
      </RelativeLayout>
      </LinearLayout>
  </RelativeLayout>