title: Change Custom Toolbar Text
body: <p>Unable to get the text on my toolbar to change. I have done a tone of searching but I am seeing no results.</p>
  
  <p>I have tried so many combinations of things but maybe something will pop out.
  Here is the code for the last thing I have tried for my activity.</p>
  
  <pre><code>Toolbar toolbar = (Toolbar) findViewById(R.id.toolbarCustom);
  TextView textView = (TextView)   toolbar.findViewById(R.id.toolbarTextView);
  textView.setText("String");
  </code></pre>
  
  <p>Here is my XML Code</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  
  
  &lt;LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:id="@+id/activity_item_action"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:paddingBottom="@dimen/activity_vertical_margin"
  android:paddingLeft="@dimen/activity_horizontal_margin"
  android:paddingRight="@dimen/activity_horizontal_margin"
  android:paddingTop="@dimen/activity_vertical_margin"
  tools:context="com.example.carson.tryeverything.ItemActionActivity"
  android:orientation="vertical"
  
     &gt;
  &lt;android.support.v7.widget.Toolbar
      android:id="@+id/toolbarCustom"
      android:layout_width="match_parent"
      android:layout_height="?actionBarSize"
      android:background="?attr/colorPrimary"
      &gt;
  
      &lt;TextView
          android:id="@+id/toolbarTextView"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_gravity="center"
          android:ellipsize="end"
          android:gravity="center"
          android:maxLines="1"
          android:text="Line one"
            android:textAppearance="@android:style/TextAppearance.WindowTitle"
          android:visibility="visible" /&gt;
  &lt;/android.support.v7.widget.Toolbar&gt;
  
  
   &lt;FrameLayout
      android:orientation="vertical"
      android:layout_width="match_parent"
      android:layout_height="0dp"
      android:layout_weight="1"
  
      &gt;
  
  
      &lt;fragment xmlns:android="http://schemas.android.com/apk/res/android"
          android:name="com.google.android.gms.maps.SupportMapFragment"
          android:id="@+id/map"
  
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_marginLeft="4dp"
          android:layout_marginRight="4dp"
          android:layout_marginBottom="6dp"
          android:layout_marginTop="0dp"
          /&gt;
  
    &lt;/FrameLayout&gt;
  
    &lt;/LinearLayout&gt;
    android:textAppearance="@android:style/TextAppearance.WindowTitle"
          android:visibility="visible" /&gt;
   &lt;/android.support.v7.widget.Toolbar&gt;
  </code></pre>
  
  <p>Lastly here is my Manifest File. Probably needs a little cleaning</p>
  
  <pre><code> &lt;application
      android:name="android.support.multidex.MultiDexApplication"
      android:allowBackup="true"
      android:icon="@mipmap/icon2"
      android:label="@string/app_name"
      android:supportsRtl="true"
      android:theme="@style/AppTheme"&gt;
      &lt;activity
          android:name=".MainActivity"
          android:theme="@style/AppTheme.NoActionBar"/&gt;
      &lt;activity
          android:name=".SplashScreen"
          android:label="@string/app_name"
          android:theme="@android:style/Theme.Translucent.NoTitleBar"
         &gt;
          &lt;intent-filter&gt;
              &lt;action android:name="android.intent.action.MAIN" /&gt;
  
              &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
  
              &lt;meta-data
                  android:name="com.google.android.gms.version"
                  android:value="@integer/google_play_services_version" /&gt;
              &lt;meta-data
                  android:name="com.google.android.geo.API_KEY"
                  android:value="no spoilers" /&gt;
          &lt;/intent-filter&gt;
      &lt;/activity&gt;
      &lt;activity android:name=".ItemActionActivity"
          android:theme="@style/AppTheme.NoActionBar"
          /&gt;
  
  
      &lt;meta-data
          android:name="com.google.android.geo.API_KEY"
          android:value="@string/google_maps_key" /&gt;
  
      &lt;activity
          android:name=".MapsActivity"
          android:label="@string/title_activity_maps"/&gt;
  &lt;/application&gt;
  </code></pre>
  
  <p></p>
  
  <p>I have three activities, the Splash, the main screen which has 2 dozen listview options and then the final activity screen where I want the toolbar to show a custom title depending on which you click on.</p>