How to determine screen position/height of SlidingDrawer handle?

HI Guys,

I'm using SlidingDrawer with a custom SurfaceView and ran into a problem. The problem is that the SurfaceView doesn't know about the remaining view area when the handle of the SlidingDrawer is being drag up and down.

Is there a way to set my SurfaceView height base on where the handle current height?

Layout XML:

<?xml version="1.0" encoding="utf-8"?> <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android开发者_JAVA百科"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">

    <and.dev.test.CustomSurfaceView android:id="@+id/flock"
        android:layout_width="fill_parent" android:layout_height="fill_parent" />

<SlidingDrawer android:layout_width="fill_parent"
    android:layout_height="wrap_content" android:id="@+id/drawer"
    android:handle="@+id/handle" android:content="@+id/content"
    android:layout_gravity="fill">

    <LinearLayout android:id="@id/handle"
        android:orientation="horizontal" android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:gravity="center_horizontal"
        android:background="#FFFFFFFF">

        <TextView android:background="@drawable/bird_blue"
            android:layout_width="wrap_content" android:layout_height="wrap_content" />
    </LinearLayout>

    <LinearLayout android:id="@id/content"
        android:orientation="vertical" android:layout_width="fill_parent"
        android:layout_height="wrap_content">


    </LinearLayout>
</SlidingDrawer> </FrameLayout>

SlidingDrawer can only be used as an overlay over layouts. That pretty much means that you can only put it inside a FrameLayout or a RelativeLayout.

Just put your custom SurfaceView and SlidingDrawer in a FrameLayout in your XML and you'll be fine and wont have to worry about resizing heights or anything.

Hope that helps