Layout issue: SliderDrawer doesn't fill parent width

I'm using the SliderDrawer in Android. Inside the drawer I have a layout which contains a inflated layout. Here's the end result:

Notice how the content of the drawer (in gray) doesn't take the whole width of the parent (black area).

Here's the drawer code (main_layout.xml):

[UPDATE 2, added the whole code:]

<?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">
  <LinearLayout android:id="@+id/banner" android:orientation="horizontal"
    android:layout_width="fill_parent" android:layout_height="wrap_content"
    android:gravity="center" android:padding="3px">
    <ImageView android:src="@drawable/title"
      android:layout_width="wrap_content" android:layout_height="wrap_content" />
    <TextView android:layout_width="wrap_content" android:text="@string/title"
      android:layout_height="wrap_content" android:textSize="18sp"
      android:gravity="center_vertical" android:paddingLeft="4px"
      android:textStyle="bold" />
  </LinearLayout>
  <LinearLayout android:layout_below="@id/banner" android:id="@+id/middle" android:orientation="vertical"
    android:layout_width="fill_parent" android:layout_height="fill_parent">
    <View android:layout_width="fill_parent" android:layout_height="1dip"
      android:background="#FF555555" />
    <ListView android:id="@android:id/list" android:layout_width="fill_parent"
      android:layout_height="fill_parent" android:padding="3px"
      android:layout_weight="1" />
    <TextView android:id="@android:id/empty" android:layout_width="fill_parent"
      android:layout_height="fill_parent" android:text="@string/no_items"
      android:padding="3px" android:layout_weight="1" />
  </LinearLayout>
  <LinearLayout android:id="@+id/LinearLayout01" android:layout_alignParentBottom="true"
    android:layout_width="fill_parent" android:layout_height="wrap_content"
    android:orientation="vertical" android:gravity="center_horizontal|bottom">
    <SlidingDrawer android:id="@+id/drawer开发者_如何转开发" android:background="#22222222" 
      android:layout_height="110dip" android:handle="@+id/handle"
      android:content="@+id/media_player_container" android:layout_width="fill_parent">
      <ImageView android:id="@+id/handle" android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:src="@drawable/tray" android:scaleType="centerCrop"/>
      <LinearLayout android:id="@+id/media_player_container"
        android:layout_width="fill_parent" android:layout_height="wrap_content"
        android:gravity="bottom|center_horizontal" />
    </SlidingDrawer>
  </LinearLayout>
</RelativeLayout>

Here's the code of the inflated area (media_player_container.xml):

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content"   android:gravity="bottom|center_horizontal" android:orientation="vertical"  android:background="#FF555555" android:padding="3px">
  <SeekBar android:id="@+id/progress" android:layout_width="fill_parent" android:layout_height="wrap_content" android:paddingBottom="3px" android:progress="1000" />
  <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content"  android:orientation="horizontal">
    <ImageButton android:id="@+id/speakerhandset" android:src="@drawable/handset" android:layout_width="60dip" android:layout_height="wrap_content" android:scaleType="center"/>
    <ImageButton android:id="@+id/rewind" android:src="@android:drawable/ic_media_rew" android:layout_width="60dip" android:paddingRight="3px" android:layout_height="wrap_content" android:scaleType="center"/>
    <ImageButton android:id="@+id/play" android:src="@android:drawable/ic_media_play" android:layout_width="60dip" android:paddingRight="3px" android:layout_height="wrap_content" android:scaleType="center"/>
    <ImageButton android:id="@+id/pause" android:src="@android:drawable/ic_media_pause" android:layout_width="60dip" android:paddingRight="3px" android:layout_height="wrap_content" android:visibility="gone"  android:scaleType="center"/>
    <ImageButton android:id="@+id/fastforward" android:src="@android:drawable/ic_media_ff" android:layout_width="60dip" android:paddingRight="3px" android:layout_height="wrap_content" android:scaleType="center"/>
  </LinearLayout>
</LinearLayout>

Can you spot what I'm doing wrong??

[Update 1] Here's the code (inside onCreate()) where I inflate the layout:

LinearLayout container = (LinearLayout) this.findViewById(R.id.media_player_container);

LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
LinearLayout layout = (LinearLayout) layoutInflater.inflate(R.layout.media_player, null, false);
container.addView(layout);

Instead of inflating your content layout and then adding it as a nested linearlayout, try actually just including the layout you want directly in the media_player_container layout. Start simple (maybe just have its content be a View with a solid background and no padding) and work your way up from there until you can find out what triggers the issue.

You also may want to consider replacing these lines:

LinearLayout container = (LinearLayout) this.findViewById(R.id.media_player_container);

LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
LinearLayout layout = (LinearLayout) layoutInflater.inflate(R.layout.media_player, null, false);
container.addView(layout);

with:

View.inflate(this, R.layout.media_player, 
        (ViewGroup) findViewById(R.id.media_player_container)

By inflating the view directly into the container, you allow the view system to properly manage your layout attributes (which technically apply to the container, not the view you define them on). Without them, the layout attributes defined in your inflated views are discarded before you add them as a child (since it can't know what type of layout you're inflating them into).

You need to give the LayoutParams while adding the view.

container.addView(layout, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));

<SlidingDrawer android:id="@+id/drawer" android:padding="10dip" android:background="#22222222" android:layout_height="110dip" android:handle="@+id/handle" android:content="@+id/media_player_container" android:layout_width="fill_parent">

Notice android:padding="10dip". The width of the sliding drawer is filling the parent, but you have 10dip on all four sides. If you want the padding on top and bottom still, do:

android:paddingTop="10dip"
android:paddingBottom="10dip"

You are specifying a "layoutHeight" attribute for the sliding drawer. Set layout height to FillParent and that should do it..