setSupportActionBar toolbar cannot be applied to android widget Toolbar error

Question

I ve been looking for an answer and I ve tried many possible solutions  but nothing seems to work    I m trying to setup a Material Action Bar following this tutorial   Here s my code   tool bar xml    lt  xml version  1 0  encoding  utf-8   gt   lt android support v7 widget Toolbar xmlns android  http   schemas android com apk res android      android layout width  match parent      android layout height  wrap content      android background   color ColorPrimary      android elevation  4dp  gt    lt  android support v7 widget Toolbar gt    activity xml    lt  xml version  1 0  encoding  utf-8   gt   lt android support v4 widget DrawerLayout xmlns android  http   schemas android com apk res android      android id    id drawer layout      android layout width  match parent      android layout height  match parent      android background   FFFFFF  gt       lt  -- The main content view -- gt       lt RelativeLayout xmlns android  http   schemas android com apk res android          android layout width  match parent          android layout height  match parent          android orientation  vertical  gt            lt include             android id    id app bar              layout   layout tool bar    gt       lt  RelativeLayout gt       lt  -- Navigation Drawer -- gt       lt ListView         android id    id left drawer          android layout width  220dp          android layout height  match parent          android layout gravity  left          android background   1C1C1C          android divider   android color darker gray          android dividerHeight  1dp    gt    lt  android support v4 widget DrawerLayout gt    And finally my activity java   import android app ActionBar  import android support v7 app ActionBarActivity  import android os Bundle  import android view Menu  import android view MenuItem  import android widget Toolbar    public class rutaActivity extends ActionBarActivity    private Toolbar toolbar       Override     protected void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout activity ruta            getSupportActionBar   hide     Ocultar ActivityBar anterior          toolbar    Toolbar  findViewById R id app bar           setSupportActionBar toolbar     HERE S THE PROBLEM        Error       setSupporActionBar  android support v7 widget Toolbar  in ActionBarActivity cannot be applied to  android widget Toolbar    How can I fix this

User · Answer

In using toolbar you should extends AppCompatActivity and  import android support v7 widget Toolbar

User · Answer

Adding import android support v7 widget Toolbar to the import list resolve this issue   Then add the toolbar widget layout file     lt android support v7 widget Toolbar     android id    id list toolbar      android layout width  match parent      android layout height  wrap content      android background   attr colorPrimary      android minHeight   attr actionBarSize      android theme   attr actionBarTheme        gt    In onCreate method of java code    call to   Tootbar toolbar   findViewById R id toolbar   setSupportActionBar toolbar    Source  https   developer android com training appbar up-action

User · Answer

For Android version above 3   import androidx appcompat widget Toolbar    For Android version below 3    import android widget Toolbar

User · Answer

Just change  import android widget Toolbar    To  import android support v7 widget Toolbar

User · Answer

I was using previously this code   Toolbar toolbar    findViewById R id toolbar   setSupportActionBar toolbar     and extended AppCompatActivity also but I was getting the same error  So in place of using Toolbar class  I have imported the below class and it worked for me   android support v7 widget Toolbar

User · Answer

For adding a ToolBar that supports Material Design  the official documentation directions are probably the best to follow    Add the v7 appcompat support library  Make your activity extend AppCompatActivity   public class MyActivity extends AppCompatActivity               Declare NoActionBar in the Manifest    lt application     android theme   style Theme AppCompat Light NoActionBar        gt   Add a toolbar to your activity s xml layout    lt android support v7 widget Toolbar    android id    id my toolbar     android theme   style ThemeOverlay AppCompat ActionBar              gt   Call setSupportActionBar in the activity s onCreate    Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity my       Toolbar myToolbar    Toolbar  findViewById R id my toolbar       setSupportActionBar myToolbar        Note  You will have to import the following in the activity   import android support v7 app AppCompatActivity  import android support v7 widget Toolbar

User · Answer

Certify that your Manifest declaration includes android theme   style AppTheme NoActionBar  tag  like the following    lt activity     android name   PointsScreen      android theme   style AppTheme NoActionBar  gt   lt  activity gt

User · Answer

class must be extend of AppCompatActivity to resolve the problem of setSuppertActionBar that is not recognizable

User · Answer

With the addition of androidx in Studio 3 0  the Toolbar compatibility is now in a new library  accessible like this  import androidx appcompat widget Toolbar

User · Answer

import android support v7 widget Toolbar    import it into your java class

User · Answer

In your Activity java import android support v7 widget Toolbar instead of android widget Toolbar   import android app ActionBar  import android support v7 app AppCompatActivity  import android os Bundle  import android view Menu  import android view MenuItem  import android support v7 widget Toolbar    public class rutaActivity extends AppCompactActivity    private Toolbar toolbar   Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity ruta        getSupportActionBar   hide     Ocultar ActivityBar anterior      toolbar    Toolbar  findViewById R id app bar       setSupportActionBar toolbar     NO PROBLEM        Update   If you are using androidx  replace  import android support v7 widget Toolbar  import android support v7 app AppCompatActivity    with newer imports  import androidx appcompat widget Toolbar  import androidx appcompat app AppCompatActivity

User · Answer

In You MainActivity java import android  support v7 widget Toolbar  insert of java program

User · Answer

ToolBar s name can easily be changed using   android label  My Activity    in your Manifest File  I just going through Manifest  amp  found  android label    Helps to change according to the specific activity  Hope you ll give it a try

[android] setSupportActionBar toolbar cannot be applied to (android.widget.Toolbar) error

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[android] setSupportActionBar toolbar cannot be applied to (android.widget.Toolbar) error

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