问在android中管理不同屏幕大小的最佳方法

EN

<RelativeLayout 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" >

<ImageView
    android:id="@+id/imageView1"
    android:layout_width="247dp"
    android:layout_height="183dp"
    android:layout_alignParentLeft="true"
    android:layout_alignParentTop="true"
    android:layout_marginTop="22dp" />

<ImageView
    android:id="@+id/imageView4"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignBottom="@+id/imageView1"
    android:layout_alignParentRight="true"
    android:layout_alignTop="@+id/imageView1"
    android:layout_toRightOf="@+id/imageView1"
    android:background="@android:color/darker_gray" />

<ImageView
    android:id="@+id/imageView2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentRight="true"
    android:layout_alignTop="@+id/imageView1"
    android:layout_toRightOf="@+id/imageView1"
    android:src="@drawable/headphone" />

<TextView
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/imageView4"
    android:layout_below="@+id/imageView2"
    android:paddingLeft="25dp"
    android:text=" Play Now"
    android:textColor="@android:color/black" />

<TextView
    android:id="@+id/textView2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignBottom="@+id/imageView4"
    android:layout_alignLeft="@+id/imageView4"
    android:layout_alignParentRight="true"
    android:paddingLeft="30dp"
    android:text="Web"
    android:textColor="@android:color/black" />

<ImageView
    android:id="@+id/imageView3"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_above="@+id/textView2"
    android:layout_alignLeft="@+id/imageView4"
    android:layout_alignRight="@+id/textView1"
    android:layout_below="@+id/textView1"
    android:src="@drawable/web" />

<Button
    android:id="@+id/button1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentRight="true"
    android:text="No Internet Avaliable " />

<ListView
    android:id="@+id/listView"
    android:layout_width="fill_parent"
    android:layout_height="198dp"
    android:layout_above="@+id/button1"
    android:layout_alignParentLeft="true"
    android:background="@android:color/transparent" >
</ListView>

<TextView
    android:id="@+id/textView3"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_below="@+id/imageView1"
    android:text="Select Channel " />