How To Use Kotlin.int In Databinding?

I wrote a layout xml like below. But the Kotlin compiler says Cannot resolve symbol 'Int' main_activity.xml

Solution 1:

• Use java Integer instead of kotlin Int.
• You can not use characters <,> etc in XML. So use HTML entities.

like

ObservableArrayMap<Integer,String>

Solution 2:

You can add data binding simple way.

Configure your app to use the data binding:

Open the app/build.gradle, Then you have to add these line of code inside the android tags in gradle and sync project

dataBinding {
    enabled = true
}

Layout and Binding Expression in Data Binding:

Open the layout (XML) file activity_main and replace the root with layout tag and place all tags inside to layout tags.

<layoutxmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"><RelativeLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"tools:context=".MainActivity"><RelativeLayout><layout>

Replace the traditional setContentView() to DataBindingUtil.setContentView() in Activity:

publicclassMainActivityextendsAppCompatActivity {
ActivityMainBinding binding;
@OverrideprotectedvoidonCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    binding = DataBindingUtil.setContentView(this, R.layout.activity_main);
   }
}

Let’s us see how to data bind with Views and Widget using data binding

 binding.tvName.setText("Monika Sharma");
 binding.tvAddress.setText("251 mansarovar Jaipur | India ");
 binding.tvFollowers.setText("240K");
 binding.tvfollowing.setText("324K");

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