Reputation: 614

Data binding could not find identifier "view"

<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
>
<data>
    <variable
        name = "registrationViewModel"
        type="com.android.freecommunity.ui.auth.AuthViewModel"/>
</data>

<androidx.constraintlayout.widget.ConstraintLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:clipChildren="false"
    android:clipToPadding="false"
    tools:context=".ui.auth.Register">


    <ImageView
        android:id="@+id/imageView"
        android:layout_width="wrap_content"
        android:layout_height="352dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:srcCompat="@drawable/intro_background" />

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/constraintLayout"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_marginStart="32dp"
        android:layout_marginEnd="32dp"
        android:layout_marginBottom="32dp"
        android:background="@drawable/round_layout_container"
        android:clipChildren="false"
        android:clipToPadding="false"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="1.0">

        <EditText
            android:id="@+id/editText"
            android:layout_width="0dp"
            android:layout_height="45dp"
            android:layout_marginStart="16dp"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="16dp"
            android:background="@drawable/round_edit_text"
            android:drawableLeft="@drawable/user"
            android:drawablePadding="16dp"
            android:ems="10"
            android:hint="Fullname"
            android:text="@={registrationViewModel.fullName}"
            android:inputType="phone"
            android:paddingStart="16dp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/imageView2" />

        <EditText
            android:id="@+id/editText2"
            android:layout_width="0dp"
            android:layout_height="40dp"
            android:layout_marginStart="16dp"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="16dp"
            android:background="@drawable/round_edit_text"
            android:drawableLeft="@drawable/email"
            android:drawablePadding="16dp"
            android:ems="10"
            android:hint="Email Address"
            android:text="@={registrationViewModel.email}"
            android:inputType="textEmailAddress"
            android:paddingStart="16dp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/editText" />

        <Button
            android:id="@+id/button"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="16dp"
            android:background="@drawable/round_edge_button"
            android:text="REGISTER"
            android:onClick="@={(view)-> registrationViewModel.onRegisterButtonClicked(view)}"
            android:textColor="@android:color/white"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.0"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/spinner2" />

        <TextView
            android:id="@+id/textView6"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:layout_marginTop="16dp"
            android:text="Already a member"
            android:textColor="@color/not_a_member"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/button" />

        <TextView
            android:id="@+id/textView12"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="16dp"
            android:text="Login"
            android:onClick="@{registrationViewModel::onLogin}"
            android:textColor="@color/not_a_member"
            android:textStyle="bold"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/button" />

        <TextView
            android:id="@+id/textView13"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="16dp"
            android:text="Forget Password ?"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/textView12" />

        <androidx.constraintlayout.widget.Guideline
            android:id="@+id/guideline"
            android:layout_width="0dp"
            android:layout_height="0dp"
            android:orientation="horizontal"
            app:layout_constraintGuide_begin="81dp" />


        <ImageView
            android:id="@+id/imageView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:translationY="-10dp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:srcCompat="@drawable/logo_holder"
            tools:layout_editor_absoluteY="-22dp" />

        <EditText
            android:id="@+id/editText3"
            android:layout_width="0dp"
            android:layout_height="40dp"
            android:layout_marginStart="16dp"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="16dp"
            android:background="@drawable/round_edit_text"
            android:drawableLeft="@drawable/phone"
            android:drawablePadding="16dp"
            android:ems="10"
            android:hint="Phone"
            android:text="@={registrationViewModel.phoneNumber}"
            android:inputType="phone"
            android:paddingStart="16dp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/editText2" />

        <EditText
            android:id="@+id/editText4"
            android:layout_width="0dp"
            android:layout_height="40dp"
            android:layout_marginStart="16dp"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="16dp"
            android:background="@drawable/round_edit_text"
            android:drawableLeft="@drawable/calendar"
            android:drawablePadding="16dp"
            android:ems="10"
            android:hint="DOB"
            android:text="@={registrationViewModel.date_of_birth}"
            android:inputType="date"
            android:paddingStart="16dp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/editText3" />

        <EditText
            android:id="@+id/editText5"
            android:layout_width="0dp"
            android:layout_height="40dp"
            android:layout_marginStart="16dp"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="16dp"
            android:background="@drawable/round_edit_text"
            android:drawableLeft="@drawable/address"
            android:drawablePadding="16dp"
            android:ems="10"
            android:hint="Home Address"
            android:text="@={registrationViewModel.address}"
            android:inputType="textPersonName"
            android:paddingStart="16dp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/editText4" />

        <Spinner
            android:id="@+id/spinner"
            android:layout_width="345dp"
            android:layout_height="40dp"
            android:layout_marginStart="16dp"
            android:layout_marginTop="16dp"
            android:background="@drawable/round_edit_text"
            android:drawSelectorOnTop="true"
            android:entries="@array/work_category_array"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/editText5" />

        <Spinner
            android:id="@+id/spinner2"
            android:layout_width="0dp"
            android:layout_height="40dp"
            android:layout_marginStart="16dp"
            android:layout_marginTop="16dp"
            android:layout_marginEnd="16dp"
            android:drawSelectorOnTop="true"
            android:entries="@array/daily_payment_plan"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/spinner" />

        <ProgressBar
            android:id="@+id/progressBar"
            style="?android:attr/progressBarStyle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:visibility="invisible"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/textView6" />


    </androidx.constraintlayout.widget.ConstraintLayout>

</androidx.constraintlayout.widget.ConstraintLayout>

Thats my xml

 fun onRegisterButtonClicked(view: View){


    authListener?.onStarted()

    if (fullName.isNullOrEmpty()){
        authListener?.onFailure("FullName is required")
        return
    }
    if (email.isNullOrEmpty()){
        authListener?.onFailure("Email is required")
        return
    }

    if (password.isNullOrEmpty()){
        authListener?.onFailure("Password is required")
        return
    }

This is where im trying to use the function inside my view model, i've tried all other way to do the onclick in my xml, but i keep getting errors. [please ignore]

This is where im trying to use the function inside my view model, i've tried all other way to do the onclick in my xml, but i keep getting errors. This is where im trying to use the function inside my view model, i've tried all other way to do the onclick in my xml, but i keep getting errors.

Upvotes: 2

Answers (3)

Hesam Kh

Reputation: 111

add this to your build.gradle :

dataBinding {
    enabled = true
}

Upvotes: 6

user5602334

Reputation: 213

You must import View first. Add the following to the top of your layout:

<data>
    <import type="android.view.View"/>
</data>

More details :https://developer.android.com/topic/libraries/data-binding/expressions#imports

Upvotes: 20

Zain

Reputation: 40898

So since you didn't provide the error log you get, I will try to add potential cause as mentioned in the question title

Data binding could not find identifier “view”

In your layout you need to remove view from the button click callback and the equal sign is useless, so replace below

<Button
    android:id="@+id/button"
    android:onClick="@={(view)-> registrationViewModel.onRegisterButtonClicked(view)}" />

with

<Button
    android:id="@+id/button"
    android:onClick="@{()-> registrationViewModel.onRegisterButtonClicked()}" />

or you also use

<Button
    android:id="@+id/button"
    android:onClick="@{registrationViewModel::onRegisterButtonClicked}" />

I omitted other attributes, so keep them unchanged.

Upvotes: 0

Data binding could not find identifier &quot;view&quot;

Answers (3)

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Data binding could not find identifier "view"