Simple Toolbar Example

Straightforward toolbar example

Guowei Lv

1 minute read

Use NoActionBar theme

<resources>
  <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
  </style>
</resources>

Create toolbar layout

<?xml version="1.0" encoding="utf-8"?>
<androidx.appcompat.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  xmlns:app="http://schemas.android.com/apk/res-auto"
  android:background="@color/colorPrimary"
  android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
  app:popupTheme="@style/ThemeOverlay.AppCompat.Light">

</androidx.appcompat.widget.Toolbar>

Setting the layout_height to wrap_content will make it the correct default height.

Since our app has a light theme, the texts color in toolbar will be black. To change it to white, we need to set the theme of the toolbar to ThemeOverlay.AppCompat.Dark.ActionBar. But then the menu popup item will be in dark color, to change it to light color, we need to also set the popupTheme to ThemeOverlay.AppCompat.Light.

Include toolbar layout into mainlayout

<androidx.constraintlayout.widget.ConstraintLayout 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:layout_width="match_parent"
  android:layout_height="match_parent"
  tools:context=".MainActivity">

  <include
    android:id="@+id/toolbar"
    layout="@layout/toolbar"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

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