Why wont the title in my Toolbar show?

Question

The title in my toolbar is not showing.

Here is my xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context="com.mddri_.myeats.main._MainActivity">

<android.support.v7.widget.Toolbar
    android:id="@+id/toolbar_main"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentTop="true"
    android:background="@color/colorPrimary"
    android:elevation="6dp"
    android:minHeight="?attr/actionBarSize"
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
    android:title="@string/app_label"
    android:titleTextColor="@color/textColor"
    app:popupTheme="@style/ThemeOverlay.AppCompat.Light"/>

<android.support.design.widget.TabLayout
    android:id="@+id/tab_layout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:tabMode="scrollable"
    android:layout_below="@+id/toolbar_main"
    android:background="@color/colorPrimary"
    />
<android.support.v4.view.ViewPager
    android:id="@+id/pager"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_below="@+id/tab_layout"/>

I don't reference the toolbar in my java code, but I can show you that if you need it. It seems like I should be able to set the title of the toolbar just by using android:title="desired_title" . The Toolbar is showing, It is the correct color and size, but it doesn't show the title.

Answer 1

Use the following.

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar_main);
setSupportActionBar(toolbar);
getSupportActionBar().setTitle("Title");