Ufdjrw

hello i have a problem my hamburger icon not showing the drawer when clicking on it
i don't know why i have the same code on other activities and it's working just fine

this is my layout

 <android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 xmlns:tools="http://schemas.android.com/tools"
 android:id="@+id/drawer_layout"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 >



<RelativeLyout
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:orientation="vertical">

 <include
 layout="@layout/app_bar"
 android:layout_width="match_parent"
 android:layout_height="80dp" />

and this is whatapp_bar layout contains

<android.support.design.widget.AppBarLayout
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:elevation="0dp"
 android:theme="@style/AppTheme.AppBarOverlay"
 tools:targetApi="lollipop">

 <com.vpapps.utils.StatusBarView
 android:id="@+id/statusBar"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:background="@color/colorPrimary"/>

 <android.support.v7.widget.Toolbar
 android:id="@+id/toolbar"
 android:layout_width="match_parent"
 android:layout_height="?attr/actionBarSize"
 android:background="@color/colorPrimaryDark"
 app:popupTheme="@style/AppTheme.PopupOverlay"
 android:elevation="0dp"
 tools:targetApi="lollipop" />

</android.support.design.widget.AppBarLayout>

and this is my java code MainActivity.java

 setContentView(R.layout.activity_main_whatsap_status_saver);

 drawer = findViewById(R.id.drawer_layout);


 toolbar = findViewById(R.id.toolbar);
 setSupportActionBar(toolbar);

 ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
 this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
 toggle.setToolbarNavigationClickListener(new View.OnClickListener() 
 @Override
 public void onClick(View view) 
 Toast.makeText(MainActivity.this, "clicked ",Toast.LENGTH_LONG).show();
 drawer.openDrawer(GravityCompat.START);
 
 );
 toggle.setHomeAsUpIndicator(R.mipmap.nav);
 drawer.addDrawerListener(toggle);
 toggle.syncState();

 toggle.setDrawerIndicatorEnabled(false);

Android provides default hamburger icon for this operation.

Simply remove below two lines of code

toggle.setHomeAsUpIndicator(R.mipmap.nav);
toggle.setDrawerIndicatorEnabled(false);