How to Remove titlebar in android or how to make all Activity or UI full schreen without title bar in android....

In manifest You have need update  single line of code which are

in side of application Tag

android:theme="@android:style/Theme.NoTitleBar"


full code :-In manifest update

 <application
        android:allowBackup="true"
        android:icon="@drawable/logo"
        android:label="@string/app_name"
        android:theme="@android:style/Theme.NoTitleBar" >
    
Now You have full screen UI without title bar in android ......

Thank you it may help you guise....