How disable / remove android activity label and label bar?

Is there anyway to remove activity label bar and label itself which is set by default from application label? I'd like to have whole layout from my design and need to remove the label bar and label which is in TOP layout.

You can achieve this by setting the android:theme attribute to @android:style/Theme.NoTitleBar on your <activity> element in your AndroidManifest.xml like this:

<activity android:name=".Activity"
    android:label="@string/app_name"
    android:theme="@android:style/Theme.NoTitleBar">
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
</activity>

If your application theme is AppTheme(or anything else), then in styles.xml add the following code:

<style name="HiddenTitleTheme" parent="AppTheme">
    <item name="windowNoTitle">true</item>
    <item name="windowActionBar">false</item>
 </style>

Then in manifest file add the following in the activity tag for which you want to disable activity label:

android:theme="@style/HiddenTitleTheme"