Toolbar Android

• Toolbar is a view introduced in Android Lollipop(API 21) the spiritual successor of the ActionBar(Actionbar is replaced with Toolbar)
• Appearance and behavior can be more easily customized than the ActionBar.
• Works well with app’s targeted to API 21 and above.
• Android has updated the AppCompat support libraries so the Toolbar can be used on lower Android OS devices as well.

Toolbar Advantages

• Toolbar is a View included in a layout like any other View
• As a regular View, the toolbar is easier to position, animate and control

Using Toolbar as Action-Bar

• To use Toolbar as an ActionBar, first ensure the AppCompat-v7 support library is added to your application

build.gradle (Module:app) file

dependencies {
compile 'com.android.support:appcompat-v7:25.2.0'
compile 'com.android.support:design:25.2.0'
}

• disable the theme-provided ActionBar

res/styles.xml file:

<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar"><!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
</resources>

• Now add a Toolbar to your Activity in layout file

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"><android.support.v7.widget.Toolbar
android:id="@+id/tb_toolbarmain"
android:layout_height="?attr/actionBarSize"
android:background="@color/colorPrimaryDark">
</android.support.v7.widget.Toolbar>
<View
android:layout_width="match_parent"
android:layout_height="10dp"
android:background="@drawable/toolbar_dropshadow" />
</LinearLayout>

• Activity.java

public class ToolbarMainActivity extends AppCompatActivity {

    private Toolbar tbtoolbarmain;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_toolbar_main);
        initViews();
    }

    private void initViews() {
        //find the toolbar view from layout
        tbtoolbarmain = (Toolbar) findViewById(R.id.tb_toolbarmain);
        //set the toolbar view as actionbar for app
        setSupportActionBar(tbtoolbarmain);
        //Enabling the Navigation icon in toolbar
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        //Title of the toolbar
        getSupportActionBar().setTitle("Title");
        //subtitle of the toolbar
        getSupportActionBar().setSubtitle("Sub Title");
        LinearLayout.LayoutParams layoutParams
                = (LinearLayout.LayoutParams) tbtoolbarmain.getLayoutParams();
//        layoutParams.height = Toolbar.LayoutParams.MATCH_PARENT;
        tbtoolbarmain.setLayoutParams(layoutParams);

    }
}

Toolbar output in device

if you like this tutorial be sure to follow me on medium recommend this tutorial to others