android title won't show in toolbar

Question

I have an xml that I use with so many activities with fragments file but my problem is that I can\'t display the text I want in the toolbar, I use that xml that way because

Answer 1

I did a custom action bar.

Layout iguepardos_action_bar.xml with this code

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:local="http://schemas.android.com/apk/res-auto"
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/blanco"
android:minHeight="?attr/actionBarSize">

    <TextView
    android:id="@+id/toolbar_title"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="left"
    android:singleLine="true"
    android:text="Toolbar Title"
    android:textColor="@color/naranja"
    android:textSize="18sp" />

</android.support.v7.widget.Toolbar>

In my Class extended AppCompatActivity I had this:

protected void onCreate(Bundle savedInstanceState) {
.... 
....

getSupportActionBar().setDisplayShowCustomEnabled(true); // is for specify use custom bar 
getSupportActionBar().setCustomView(R.layout.iguepardos_action_bar);  // my custom layout
getSupportActionBar().setDisplayHomeAsUpEnabled(true); // Button for come back

View mCustomView = getSupportActionBar().getCustomView(); // Set the view
TextView TitleToolBar = (TextView) mCustomView.findViewById(R.id.toolbar_title); // find title control
TitleToolBar.setText("The Title Show"); // Set the Title

}

Answer 2

getActionBar().setTitle("Groups History");

or if you are using AppCompat libraries;

getSupportActionBar().setTitle("Groups History");

Answer 3

getSupportActionBar().setDisplayShowTitleEnabled(true);

Answer 4

if your title color is white and the toolbar is also white, you will not differentiate it. So try to change the toolbar color

Answer 5

I actually had to get the toolbar_title to set the text into each different activity:

    toolbar = findViewById(R.id.toolbar);
    toolbarTitle = findViewById(R.id.toolbar_title);   //<----- here
    toolbarTitle.setText(getString(R.string.my_activity_toolbar_title));
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

Answer 6

Setting,

app:title="@string/my_title"

within the declaration of the the android.support.v7.widget.Toolbar, hard codes the title in the toolbar.

To set the title programatically,

Toolbar toolbar = (Toolbar) findViewById(R.id.my_toolbar);
toolbar.setTitle("my title");
setSupportActionBar(toolbar);

in your activity class.