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:

<?xml version="1.0" encoding="utf-8"?>
<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">

</android.support.v7.widget.Toolbar>

activity.xml:

<?xml version="1.0" encoding="utf-8"?>
<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">
    <!-- The main content view -->
    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <include
            android:id="@+id/app_bar"
            layout="@layout/tool_bar" />
    </RelativeLayout>
    <!-- Navigation Drawer -->
    <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" />

</android.support.v4.widget.DrawerLayout>

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?

Solution 1

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;

Solution 2

In using toolbar you should extends AppCompatActivity and

import android.support.v7.widget.Toolbar 

Solution 3

For adding a ToolBar that supports Material Design, the official documentation directions are probably the best to follow.

1. Add the v7 appcompat support library.

2. Make your activity extend AppCompatActivity.

   public class MyActivity extends AppCompatActivity {
     // ...
   }
   

3. Declare NoActionBar in the Manifest.

   <application
       android:theme="@style/Theme.AppCompat.Light.NoActionBar"
       />
   

4. Add a toolbar to your activity's xml layout.

   <android.support.v7.widget.Toolbar
      android:id="@+id/my_toolbar"
      android:theme="@style/ThemeOverlay.AppCompat.ActionBar"
      ...
      />
   

5. 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;

Solution 4

For Android version above 3:

import androidx.appcompat.widget.Toolbar;

For Android version below 3:

import android.widget.Toolbar;

Solution 5

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

View more solutions

Comments

[nyxaria]

Use AppCompatActivity instead of ActionBarActivity as Google has depreciated it.

[Harsha]

when i use toolbar in android class extens actionbaractivity setsupportActionBar(tool) showing error setsupport toolbar v7 appdelegar error please help me

[Francisco Romero]

Extends AppCompatActivity gave me the clue I was missing.

[Mike Miller]

Forgot to extend AppCompatActivity and was getting an Unresolved Reference on setSupportActionBar. Thanks!

[Ümañg ßürmån]

This will not help.

[trustidkid]

It tried it and it works for me. take note of the import statement import android.support.v7.widget.Toolbar and the toolbar <android.support.v7.widget.Toolbar.

[Admin]

@AbhinavSaxena stop spamming other people's answers with a link to another answer.

[most venerable sir]

This is genius!

[Rushabh Gedam]

It's most sophisticated way I've ever found, did it helped to u ?