adjust android videoview height to half of the screen in portrait mode

Question

I guess this might be easy but Please i need help, i have a video view that i want the height to get to the middle of the screen on any device, but what am currently doing is not doing that. when in portrait mode i want the video view to start from the top of screen to the middle of the screen in any device when in portrait mode, i think the video view is not suppose to have a fixed height, because this might vary on different device, this is the code am trying.

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

<VideoView
    android:id="@+id/videoview"
    android:layout_width="match_parent"
    android:layout_height="280dip"
    android:layout_alignParentLeft="true"
    android:layout_alignParentRight="true"
    android:layout_alignParentTop="true"
    android:layout_centerHorizontal="true"
    android:layout_centerInParent="true" >
</VideoView>

<LinearLayout
    android:id="@+id/linearLayout"
    android:layout_width="fill_parent"
    android:layout_height="30dp"
    android:layout_alignParentLeft="true"
    android:layout_below="@+id/videoview"
    android:background="@drawable/top_bar"
    android:orientation="horizontal" >

    <LinearLayout
        android:id="@+id/settings"
        android:layout_width="50dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/set"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/settings" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/low_tab"
        android:layout_width="70dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/low"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/low" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/high_tab"
        android:layout_width="80dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/high"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/high" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/audio_tab"
        android:layout_width="70dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/audio"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/audio" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/full_screen"
        android:layout_width="30dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/full"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/full" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/fresh"
        android:layout_width="30dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/refresh"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/refresh" />
    </LinearLayout>
</LinearLayout>

<LinearLayout
    android:id="@+id/linearLayout1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_below="@+id/linearLayout"
    android:background="@drawable/comment_bar"
    android:orientation="horizontal" >

    <LinearLayout
        android:id="@+id/liveblog_tab"
        android:layout_width="80dp"
        android:layout_height="wrap_content"
        android:background="@drawable/select"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/live_blog" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/addcom_tab"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:background="@drawable/select"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingLeft="15dp"
        android:paddingTop="5dp" >

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:contentDescription="@string/desc"
            android:src="@drawable/add_comment" />
    </LinearLayout>
</LinearLayout>

<RelativeLayout
    android:id="@+id/main_content"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:layout_below="@+id/linearLayout1"
    android:orientation="vertical" >

    <FrameLayout
        android:id="@+id/frame"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignLeft="@+id/linearLayout1"
        android:layout_centerVertical="true" >

        <LinearLayout
            android:id="@+id/liveblog"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical" >

            <WebView
                android:id="@+id/browser"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent" >
            </WebView>
        </LinearLayout>

        <LinearLayout
            android:id="@+id/comments"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical" >
        </LinearLayout>
    </FrameLayout>
</RelativeLayout>

Answer 1

I have written something that can solve your problem. You can do this as well on run time but If you want to do it inside XML here is the code.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:weightSum="100" >

<VideoView
    android:id="@+id/videoview"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="50" >
</VideoView>

<LinearLayout
    android:id="@+id/linearLayout"
    android:layout_width="fill_parent"
    android:layout_height="0dp"
    android:layout_weight="10"
    android:background="@android:color/black"
    android:orientation="horizontal" >

    <LinearLayout
        android:id="@+id/settings"
        android:layout_width="50dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/set"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/low_tab"
        android:layout_width="70dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/low"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/high_tab"
        android:layout_width="80dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/high"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/audio_tab"
        android:layout_width="70dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/audio"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/full_screen"
        android:layout_width="30dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/full"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/fresh"
        android:layout_width="30dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:id="@+id/refresh"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>
</LinearLayout>

<LinearLayout
    android:id="@+id/linearLayout1"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="20"
    android:orientation="horizontal" >

    <LinearLayout
        android:id="@+id/liveblog_tab"
        android:layout_width="80dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingTop="5dp" >

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/addcom_tab"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:paddingBottom="5dp"
        android:paddingLeft="15dp"
        android:paddingTop="5dp" >

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />
    </LinearLayout>
</LinearLayout>

<FrameLayout
    android:id="@+id/frame"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:layout_weight="20" >

    <LinearLayout
        android:id="@+id/liveblog"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical" >

        <WebView
            android:id="@+id/browser"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent" >
        </WebView>
    </LinearLayout>

    <LinearLayout
        android:id="@+id/comments"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical" >
    </LinearLayout>
</FrameLayout>

</LinearLayout>