Change color and size of the title in Toolbar- Android

Issue

I am trying to change the title color and size of the toolbar but nothing happens. I search everywhere and nothing seems to work. I am using minsdk 19 api. Here is my code:

**activity.main.xml**

<android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/AppTheme.AppBarOverlay"
    >

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        app:popupTheme="@style/AppTheme.PopupOverlay"
        />

</android.support.design.widget.AppBarLayout>

**style.xml**

<resources>

<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- Customize your theme here. -->
    <item name="colorPrimary">@color/primaryColor</item>
    <item name="colorPrimaryDark">@color/primaryDarkColor</item>
    <!--<item name="colorAccent">@color/primaryLightColor</item>-->
    <item name="android:textColor">@color/primaryTextColor</item>
</style>

<style name="AppTheme.NoActionBar">
    <item name="windowActionBar">false</item>
    <item name="windowNoTitle">true</item>
</style>

<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar">

    <item name="actionBarStyle">@style/MyTitleTextStyle</item>

</style>
<style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />


<style name="MyTitleTextStyle" parent="TextAppearance.Widget.AppCompat.Toolbar.Title">
    <item name="android:textColor">@color/primaryColor</item>
</style>

</resources>

Solution

It's well explained here. Add this to your Toolbar:

app:titleTextAppearance="@style/Toolbar.TitleText"

And create a style for it:

<style name="Toolbar.TitleText" parent="TextAppearance.Widget.AppCompat.Toolbar.Title">
    <item name="android:textColor">#FFFFFF</item>
</style>

Answered By - Suleyman