How to avoid overlap view in relative layout in android?

Use layout_toStartOf in the first item with second item +id under double quotes

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >

    <TextView
        android:id="@+id/email"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_centerVertical="true"
        android:layout_toStartOf="@+id/selectaccount"
        android:text="very long text which used to overlap over radio button"
        android:textAppearance="?android:attr/textAppearanceMedium" />

    <RadioButton
        android:id="@+id/selectaccount"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_centerVertical="true" />

</RelativeLayout>

note this argument in textview

android:layout_toStartOf="@+id/selectaccount"

An XML is read from top to bottom

so this is how the Layout is rendered in Android

• android:layout_toStartOf=”@id/item means that item is defined above this line
• android:layout_toStartOf=”@+id/item means that item will appear later somewhere below this line