How Can I Solve User Interface Problem In Android ?

See more:

XML

Mobile

Android

Android4x

hi guys . im new in android programming .
i have a problem when i want to designe my UI in (XML).
my problem is when i run my app in Nexus7 (800*1280 hdpi) everything is well .
but if i change AVD to Nexus One (480*800 hdpi) it shows me something different !
i use dp unit for layouts and inputs and Sp unit for font .
but as i said it doesn't Show a Correct UI !
my Code :

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"   
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity"    
    android:removed="@color/color_name_1"
    android:orientation="vertical"
     >
<LinearLayout 
     android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center_horizontal"
    android:removed="@color/color_name_1"
    android:orientation="horizontal"    
    >    
    <TextView 
        android:id="@+id/WelcomTop"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Iranian Magic Box"
        android:textColor="@color/color_name_2"
        android:textSize="90sp"        
        />    
</LinearLayout>



<LinearLayout 
     android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center_horizontal"
    android:removed="@color/color_name_1"
    android:orientation="horizontal"    
    >    
    <TextView 
        android:id="@+id/Version"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Sweet Land version"
        android:textColor="@color/color_name_2"
        android:textSize="45sp"        
        />    
</LinearLayout>


<LinearLayout 
     android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center_horizontal"
    android:removed="@color/color_name_1"
    android:orientation="horizontal"    
    >    
    <TextView 
        android:id="@+id/desginer"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="designed By mahmud Shahrokni"
        android:textColor="@color/color_name_2"
        android:textSize="45sp"        
        />    
</LinearLayout>

<LinearLayout
   android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center_horizontal"
    android:removed="@color/color_name_1"
    android:orientation="horizontal"       
     >    
    <EditText
    android:id="@+id/TellNumber"
    android:layout_width="500dp"
    android:layout_height="50dp"
    android:removed="@color/color_name_0"
    android:text="Ex:09121995572"
    android:layout_marginTop="20dp"
    android:gravity="center"
    android:textSize="25sp"
    android:ems="10" >
    <requestFocus />
</EditText>    
</LinearLayout>


<LinearLayout
   android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center_horizontal"
    android:removed="@color/color_name_1"
    android:orientation="horizontal"       
     >    
    <EditText
    android:id="@+id/PWD"
    android:layout_width="500dp"
    android:layout_height="50dp"
    android:removed="@color/color_name_0"
    android:text="********"
    android:layout_marginTop="20dp"
    android:gravity="center"
    android:textSize="25sp"
    android:inputType="textPassword"
    android:ems="10" >
    <requestFocus />
</EditText>    
</LinearLayout>



</LinearLayout>