android - tool bar not removed? -

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so im trying remove tool bar on android design page can't reason.

xml code:

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

did set theme of activity in manifest without actionbar?

in styles.xml:

<style name="apptheme.noactionbar">     <item name="windowactionbar">false</item>     <item name="windownotitle">true</item> </style>

and in androidmanifest.xml:

<activity         android:name=".mainactivity"         android:theme="@style/apptheme.noactionbar" />

then in design page, you'll need select theme created in dialog.


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