SlidingDrawer的使用

Question

SlidingDrawer 的handle和content 怎么重叠？
要实现的效果目前的效果目前的代码：
<SlidingDrawer
        android:id="@+id/slidingdrawer"
        android:layout_width="match_parent"
        android:layout_height="140dip"
        android:layout_alignParentBottom="true"
        android:content="@+id/content"
        android:bottomOffset="50dip"
        android:handle="@+id/handle" >        <FrameLayout
            android:id="@+id/handle"
            android:layout_width="match_parent"
            android:layout_marginBottom="-30dip"
            android:layout_height="wrap_content" >
            <ImageButton
                android:id="@+id/sliding_button"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="right|center_vertical"
                android:background="@drawable/sliding" />
        </FrameLayout>        <LinearLayout
            android:id="@+id/content"
            android:layout_marginTop="-50dip"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="@drawable/sliding_bg"
            android:gravity="center_vertical|right"
            android:orientation="horizontal" >            <TextView
                android:id="@+id/username"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="[email protected]"
                android:textColor="@color/black"
                android:textSize="18sp" />            <Button
                android:id="@+id/logout_button"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="right|center_vertical"
                android:layout_marginLeft="20dip"
                android:background="@drawable/logout_btn_selector" />            <Button
                android:id="@+id/sync_button"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="20dip"
                android:layout_marginRight="100dip"
                android:background="@drawable/sync_btn_selector" />
        </LinearLayout>
    </SlidingDrawer>androidlayout

Answer 1

用linearlayout的 android:layout_marginTop="-50dip" 不起作用。