How to add Toolbar in Activity without inheriting Appcompatactivity - Android Studio 1.4

Question

Good night.

I updated my Android Studio for version 1.4 and by default, any activity used as an inheritance to AppCompatActivity (public class MainActivity extends AppCompatActivity). I developed an app that needs to inherit a class responsible for controlling the life cycle of each activity as in the following example: public class MainActivity extends LifeCycleActivity. The problem is that in doing so, the name of the project does not appear on toolbar when running the app. Like updating Android Studiobrought two layouts (content_main.xml and activity_main.xml) for each activity, I wonder if I solve the problem of displaying the project name in the toolbar through the layout files themselves, or through code, since I am not using as inheritance the AppCompatActivity.

Answer 1

When we create Actionbar without Appcompatactivity You need to set the Actionbar layout in your xml. Place the code below as the first element of your layout.xml

<android.support.v7.widget.Toolbar
    android:id="@+id/toolbar"
    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"
    />

Then put in the respective Activity (in the onCreate method) the following:

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
toolbar.setTittle("titulo");

I hope I’ve helped

Answer 2

Just set up the toobar title.

Toolbar toobar  = (Toolbar)findViewById(R.id.toobar);
setSupportActionBar(toolbar);
toolbar.setTitle("seu título");

Answer 3

I followed the help I received and the solution was solved by making the class LifeCycleActivity inherit from AppCompatActivity.