Why won't androidx support the navigation bar?

Question

So I\'m trying to get a navigation drawer done using this tutorial (https://www.youtube.com/watch?v=fGcMLu1GJEc&t=16s) however, I undersetand that something has changed in A

Answer 1

The error says you are using the drawer layout from support compat you have to use the material drawer layout

Here is how to add the library

https://material.io/develop/android/docs/getting-started/

Here is how to add the drawer

https://material.io/develop/android/components/navigation-view/

Answer 2

AndroidX replaces the original support library APIs with packages in the androidx namespace.

Looks like you are using some of the support library classes in your xmls as you can see in the logs:

Didn't find class "android.support.v4.widget.DrawerLayout" on path: DexPathList
    android.support.v4.widget.DrawerLayout

In your xml that is being inflated in the MainActivity, replace this:

android.support.v4.widget.DrawerLayout

with this:

androidx.drawerlayout.widget.DrawerLayout

This should solve this error for you.

However, I am positive there will be more xmls with older support library classes. Refer here and search for the class causing the error as above and replace it with the corresponding androidx class.

Answer 3

remove androidx.appcompat.widget.Toolbar from parent view and use below xml

<androidx.drawerlayout.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"
    android:fitsSystemWindows="true"
    tools:context=".MainActivity"
    tools:openDrawer="start">

  <LinearLayout
      android:layout_width="wrap_content"
      android:layout_height="match_parent"
      android:orientation="vertical">

    <androidx.appcompat.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="@color/colorPrimary"
        android:elevation="4dp"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
        app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

    <FrameLayout
        android:id="@+id/fragment_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

  </LinearLayout>
</androidx.drawerlayout.widget.DrawerLayout>