Htykuut

I have an xml with multiple TextInputLayouts. One of them goes as follows:

        <android.support.design.widget.TextInputLayout

                android:layout_width="match_parent"

                android:layout_height="wrap_content"

                android:id="@+id/textInputEmail"

                app:layout_constraintStart_toStartOf="parent"

                android:layout_marginLeft="@dimen/default_margin"

                android:layout_marginStart="@dimen/default_margin"

                app:layout_constraintEnd_toEndOf="parent"

                android:layout_marginEnd="@dimen/default_margin"

                android:layout_marginRight="@dimen/default_margin"

                android:layout_marginTop="@dimen/default_margin_half"

                app:layout_constraintTop_toTopOf="parent"

                android:layout_marginBottom="@dimen/default_margin_half"

                app:layout_constraintBottom_toBottomOf="parent">



            <android.support.design.widget.TextInputEditText

                    android:id="@+id/editTextEmail"

                    android:layout_width="match_parent"

                    android:layout_height="wrap_content"

                    android:hint="@string/email"

                    android:text="@={viewModel.username}"

                    android:onTextChanged="@{(text, start, before, count) -> viewModel.onTextChanged(text)}"

                    android:inputType="textEmailAddress"/>

        </android.support.design.widget.TextInputLayout>

In my viewmodel I have text change listener implemented as follows:

    fun onTextChanged(text: CharSequence){

    Log.i("LoginViewModel", "username = "+text)

}

What I want to do is something like this:

    fun onTextChanged(text: CharSequence, view: View){

    when(view.id){

        R.id.editText1 -> doSomething1()

        R.id.editText2 -> doSomething2()

}

Is it possible to pass view/id/reference of the view that triggered the method, when databinding is used to call methods?

Yes, you can pass your views in databinding, simply create a method with View a parameter in the view model:

fun onTextChanged(text: CharSequence, view: View){

    when(view.id) {

        R.id.editText1 -> doSomething1()

        R.id.editText2 -> doSomething2()

    }

}

Then pass the view's id to the method in XML layout:

<android.support.design.widget.TextInputEditText

    android:id="@+id/editTextEmail"

    android:layout_width="match_parent"

    android:layout_height="wrap_content"

    android:hint="@string/email"

    android:text="@={viewModel.username}"

    android:onTextChanged="@{(text, start, before, count) -> viewModel.onTextChanged(text, editTextEmail)}"

    android:inputType="textEmailAddress"/>