Vfrdtyky

I'm getting the following error when I try to run my app:

Error:Execution failed for task ':app:compileDevelopmentDebugJavaWithJavac'.

> java.lang.RuntimeException: Found data binding errors.

****/ data binding error ****msg:Could not find accessor java.lang.String.giftRecipientName redacted.xml loc:182:63 - 182:93 **** data binding error ****

I have an Order object which looks like this:

public class Order {

    public Address address;

    // unrelated fields and methods

}

The nested Address object looks like this:

public class Address {

    public String addressLine1;

    public String addressLine2;

    public String giftRecipientName;

    public Boolean isGift;

}

In my .xml I am doing the following:

<layout xmlns:android="http://schemas.android.com/apk/res/android">



    <data>

        <variable name="order" type="example.redacted.models.Order"/>

    </data>

    // widgets and whatnot

    <TextView

        android:id="@+id/gift_recipientTV"

        android:layout_column="1"

        android:layout_weight="1"

        android:layout_width="0dp"

        android:textStyle="bold"

        android:gravity="right"

        android:text='@{order.address.isGift ?  order.address.giftRecipientName : "" }'/>

Lastly in my fragment:

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    RedactedBinding dataBinding = DataBindingUtil.inflate(inflater, R.layout.redacted, container, false);

    dataBinding.setOrder(_order);

    return dataBinding.getRoot();

}

After hours of trial and error it seems that Android data-binding looks for getters before it looks at public fields. My Order object had a helper method called getAddress

public class Order {

    public Address address;



    public String getAddress() {

        return address.addressLine1 + address.addressLine2;

    }

}

The binder was calling that method instead of accessing the public Address field. I put the getAddress method inside the Address object (where it probably should have been to begin with) and the app compiled.

Android DataBinding error. Could not find accessor

• As this error tells, binding needs accessor or getter to work and also setter if you use two way binding.


• So always put getter & setter in your model class.

In my case, My ViewModel has a variable name starting with m and it was creating a problem

public class MyViewModel extends ViewModel {

    private LiveData<SomeClass> mTask; //Chaning the variable name to task and it's getter name to getTask worked for me

    //...code left for brevity

    public LiveData<SomeClass> getmTask() {

        return mTask;

    }

}

I changed the variable name mTask to task and it's getter name getmTask to getTask and it worked for me.

public class MyViewModel extends ViewModel {

    private LiveData<SomeClass> task;

    //...code left for brevity

    public LiveData<SomeClass> getTask() {

        return task;

    }

}

And In my xml file I was able to access it

<TextView

    ...

    android:text="@{viewmodel.task.title}"

Check your Layout file and ViewModel class. A variable name should be the same in both files.just like:

In ViewModel class:

MutableLiveData<String> emailId = new MutableLiveData<>();

In Layout files:

<EditText

     ........

      android:text="@={loginVM.emailId}"