Question

caution [I18N] Hardcoded string”Would you like to give Zohan a call?”, should use @string resource

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

<TextView 
    android:id="@+id/TextView01"
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:text="Would you like to give Zohan a call?"
    android:layout_marginTop="200dp"
    android:layout_marginLeft="20dp"
    android:textSize="18dp"/>

Answer 1

You should not hard code your strings. Instead you should put your strings in values/strings.xml.
Ctrl+1 on the error it will show you the way to fix it.
Refer to the android string documentation: http://developer.android.com/guide/topics/resources/string-resource.html#String