layout alignment problem in multiple screen resolution

Question

Hi all

I am new in android, i am having few problem in layout alignment.I have divide the screen into three layout,as header, body and footer.

I am giving the height dynamically for the three layout in java file, so i need to give 12% of height to header and footer layout, and the remaining 75% i need to assign height to body layout.

For that i have made the calculation as follow

first i am getting the height and width for the screen. With the help of the screen height i am getting the 12.5% height for header and footer layout

WindowManager w = getWindowManager(); Display d = w.getDefaultDisplay(); int totalwidth_screen = d.getWidth(); int totalheight_screen = d.getHeight();

int total_HF_screen = (int) ((12.5/100)*totalheight_screen); # height for header and footer int total_body_screen = totalheight_screen - (2*(total_HF_screen)) #height for body

By assigning the width and height for the layout using the above calculations, iam not getting the footer layout properly.i.e only some part of the footer is viewable.

I need to assign the height for the layout dynami cally, which is not comming using the above calculation.Can you please suggest me the apt way of calculation for dynamically assigning the height of the layout.

I have mention the xml file and java file for your reference

Xml file

    <LinearLayout
    android:id="@+id/header_aboutus"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/header">
    </LinearLayout>

    <LinearLayout
    android:id="@+id/body_aboutus"
    android:layout_width="fill_parent"
    android:layout_height="1dip"
    android:background="@drawable/body">
    </LinearLayout>

    <LinearLayout
    android:id="@+id/footer_aboutus"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:gravity="center"
    android:background="@drawable/footer">

            <Button
            android:id="@+id/aboutUs_home_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/home_button" >
            </Button>

    </LinearLayout>

java file

import android.app.Activity; import android.app.AlertDialog; import android.content.Intent; import android.os.Bundle; import android.view.Display; import android.view.View; import android.view.WindowManager; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.LinearLayout; import android.widget.RelativeLayout;

public class aboutus extends Activity {

    public String data;

    public void onCreate(Bundle icicle) {

            super.onCreate(icicle);
            setContentView(R.layout.aboutus);

            WindowManager w = getWindowManager();
        Display d = w.getDefaultDisplay();
        int totalwidth_screen = d.getWidth();
        int totalheight_screen = d.getHeight();

            int total_HF_screen = (int) ((12.5/100)*totalheight_screen);

            int total_body_screen1 =  2 * total_HF_screen;
            int total_body_screen = totalheight_screen - total_body_screen1;

           LinearLayout header_aboutus= (LinearLayout)

findViewById(R.id.header_aboutus); LinearLayout body_aboutus= (LinearLayout) findViewById(R.id.body_aboutus); LinearLayout footer_aboutus= (LinearLayout) findViewById(R.id.footer_aboutus);

            header_aboutus.setLayoutParams(
                            new LinearLayout.LayoutParams(totalwidth_screen,

total_HF_screen)); body_aboutus.setLayoutParams( new LinearLayout.LayoutParams(totalwidth_screen, total_body_screen)); footer_aboutus.setLayoutParams(new LinearLayout.LayoutParams(totalwidth_screen, total_HF_screen ));

    }

}

Thanks C.Rajesh