android - App Elevation is not working -


activity_main.xml

<?xml version="1.0" encoding="utf-8"?> <linearlayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     xmlns:app="http://schemas.android.com/apk/res-auto"     android:background="@color/tan_background"     android:orientation="vertical"     tools:context="com.example.android.miwok.mainactivity">      <android.support.design.widget.appbarlayout         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:theme="@style/apptheme"         app:elevation="0dp">          <android.support.design.widget.tablayout             android:id="@+id/sliding_tabs"             style="@style/mycustomtablayout"             android:layout_width="match_parent"             android:layout_height="wrap_content" />      </android.support.design.widget.appbarlayout>      <android.support.v4.view.viewpager         android:id="@+id/viewpager"         android:layout_width="match_parent"         android:layout_height="match_parent" /> </linearlayout>

app screenshot

i created app udacity course. want know how can remove elevation appbar. have tried multiple ways it's not working. preview tab shadow not visible want in app. in emulator, appears again. have tried changing styles.xml , using both android:elevation , app:elevation.

try this

getsupportactionbar().setelevation(0);

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