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androidxmlandroid-toolbar

Android Data Binding SetSupportActionBar

Hi I wonder if there is an xml tag for this function using Android Data Binding Library or how to achieve this without findViewById() method

Thank You

Solution

  • You can access the instance of the toolbar using views by id function 

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

    then on your onCreate() method do the following

    ActivityGalleryBinding binding = DataBindingUtil
    .setContentView(this, R.layout.activity_gallery);
binding.setViewModel(new GalleryModel(this));
//set it like this
setSupportActionBar(binding.<location>.<of>.<your>.toolbar);

    if your toolbar is inside other xml component (referenced with <include/>) you still can access it as long as you provide and @id to the <include/>