Problem in Supporting Multiple Screens in Android?

Question

Hai Friends, I have developed an application which en-composes list views and posted that .apk file in my htc device, the design and alignment everything works fine,but the problem When i am testing in various devices such as Morotolo Droid,Nexus Devices the alignment of Listviews goes wrong, so i planned to use the Layout folder as layout-hdpi,layout-ldpi, and layout-mdpi, for that i changed my manifest file as

<supports-screens android:largeScreens="true" 
        android:normalScreens="true" android:smallScreens="true"
        android:anyDensity="true" /> 

Is it right putting android:anyDensity="true",also i used dp instead of dip. I went through this url, but still am not able to get a clear idea in this http://developer.android.com/guide/practices/screens_support.html. so friends pls tell me(help me) to get clear idea in this and tell what mistakes i have doing. This is my main page xml code frnds.

<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/tabhost" android:layout_width="fill_parent"
    android:layout_height="wrap_content">

    <LinearLayout
        android:orientation="vertical"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:background="@drawable/background_retinav2">   

     <LinearLayout android:layout_gravity="center" android:foregroundGravity="bottom" android:background="@color/white" android:id="@+id/rl_1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal">
        <ImageView  android:paddingTop="3dp" android:id="@+id/starthideimage" android:layout_width="30dp" android:layout_height="35dp" android:src="@drawable/newback" />
        <HorizontalScrollView  android:paddingTop="8dp" android:id="@+id/gv"
        android:layout_width="wrap_content" android:layout_marginTop="0dp"
        android:layout_height="wrap_content" android:background="#ffffff"
        android:scrollbars="none" android:layout_weight="1" android:foregroundGravity="bottom">
        <LinearLayout android:id="@+id/san_tag" android:layout_width="wrap_content" android:layout_height="wrap_content">
        </LinearLayout>
    </HorizontalScrollView>
    <ImageView  android:paddingTop="3dp" android:id="@+id/Endhideimage" android:layout_width="30dp" android:layout_height="35dp" android:src="@drawable/newforward" />
    </LinearLayout>

    <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:orientation="vertical" android:id="@android:id/tabcontent"  
        android:layout_width="fill_parent"  android:layout_height="fill_parent">



         <ListView android:id="@+id/content_movies" android:cacheColorHint="@color/cachecolor" 
           android:layout_weight="1" android:scrollbars="vertical"
           android:layout_width="fill_parent" android:layout_height="420dp"/>

        </FrameLayout>   
 </LinearLayout>

<TabWidget
    android:id="@android:id/tabs"
    android:gravity="bottom"
    android:layout_gravity="bottom"
    android:listSelector="@color/gray"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content" /> 

</TabHost>

Answer 1

you should get width and height of device on run time

Display display = getWindowManager().getDefaultDisplay(); screenWidth = display.getWidth(); screenHeight = display.getHeight();

and the make your layout accordingly

if you can code your layout programatically instead of using xml

it,d be best practice