Apps Controls is showing above to one another.

[nitinverma274]

Helllo Guys, I have two EditText and two Button.
But on the emulator.second controls show the above of first one. so first one is now showing on the screen.
What should i do.
that is my main.xml file.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
androidadding="10px">

<EditText
android:id="@+id/text1"
android:layout_width="fill_parent"
android:layout_height="wrap_content" androidaddingTop="10px"/>

<Button
android:id="@+id/b1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/text1"
android:layout_alignParentRight="true" android:layout_marginLeft="40px"
android:text="Click"/>
<EditText
android:id="@+id/text2"
android:layout_width="fill_parent"
android:layout_height="wrap_content" androidaddingBottom="0px"/>

<Button
android:id="@+id/b2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/text2"
android:layout_alignParentRight="true" android:layout_marginLeft="40px"
android:text="Click"/>
</RelativeLayout>