CODEWITHSUNDEEP
androidandroid-studioandroid-studio-3.6
Mehta
Mehta

Reputation: 1226

Data binding class not generated in latest studio 3.6

Today I have updated my android studio 3.5.3 to 3.6. Now, I am not able to generate any data binding class. Android studio it self generating data-binding-iml file.

Does any one faced such issue?

Gradle wrapper.properties:

distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip

Project level gradle file:

dependencies {
        classpath 'com.android.tools.build:gradle:3.5.3'
}

App level gradle file:

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'
apply plugin: 'androidx.navigation.safeargs'
android {
 dataBinding {
        enabled = true
    }
    // Using Lambda Expressions
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    kotlinOptions {
        jvmTarget = "1.8"
    }
}

gradle.properties:

kotlin.code.style=official
android.databinding.enableV2=true
kotlin.incremental=true
kapt.incremental.apt=true

Below is my Activity and XML files: Activity:

class ActivityMain : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        var binding = DataBindingUtil.setContentView<ActivityMainBinding>(this, R.layout.activity_main)
    }
}

XML:

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <data>
        <import type="android.view.View" />
     <!--   <variable
            name="loading"
            type="Boolean" />-->
        <variable
            name="bottomMenu"
            type="Boolean" />
        <variable
            name="clickListener"
            type="com.ecom.side_menu.SideMenuClickHandler" />
    </data>
    <androidx.drawerlayout.widget.DrawerLayout
        android:id="@+id/drawer_layout"
        android:layout_width="match_parent"
        android:fitsSystemWindows="false"
        android:layout_height="match_parent">

        <androidx.constraintlayout.widget.ConstraintLayout
            android:id="@+id/container"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <include
                android:id="@+id/layToolbar"
                layout="@layout/layout_toolbar"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent" />

            <androidx.fragment.app.FragmentContainerView
                android:id="@+id/splash_host"
                android:name="androidx.navigation.fragment.NavHostFragment"
                android:layout_width="0dp"
                android:layout_height="0dp"
                android:background="@android:color/white"
                app:defaultNavHost="true"
                app:layout_constraintBottom_toTopOf="@+id/bottomNavigationView"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/layToolbar"
                app:navGraph="@navigation/splash_graph" />

            <com.google.android.material.bottomnavigation.BottomNavigationView
                android:id="@+id/bottomNavigationView"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginStart="0dp"
                android:layout_marginEnd="0dp"
                android:background="@color/colorPrimary"
                android:visibility="@{safeUnbox(bottomMenu) ? View.VISIBLE : View.GONE}"
                app:itemBackground="@color/colorPrimary"
                app:itemIconTint="@android:color/white"
                app:itemTextColor="@android:color/white"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:menu="@menu/menu_navigation_dashboard" />


         <!--   <include
                android:id="@+id/progressLayoutId"
                layout="@layout/layout_progress"
                android:visibility="@{safeUnbox(loading) ? View.VISIBLE : View.GONE}"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintStart_toStartOf="parent" />-->

        </androidx.constraintlayout.widget.ConstraintLayout>

        <com.google.android.material.navigation.NavigationView
            android:id="@+id/navigationView"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_gravity="start"
            android:background="@android:color/white"
            android:fitsSystemWindows="true"
            android:visibility="visible">
            <include
                android:id="@+id/customDrawerList"
                app:clickListener="@{clickListener}"
                layout="@layout/drawer_list" />
        </com.google.android.material.navigation.NavigationView>

    </androidx.drawerlayout.widget.DrawerLayout>

</layout>

Official solution:

Google has resolved this issue. After updating with new patch of android studio 3.6.2, I am able to create databinding class with multiple source set

Upvotes: 15

Views: 11668

Answers (13)

Osama Ibrahim
Osama Ibrahim

Reputation: 1021

be sure you add the following tag in the XML file:

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

<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:gravity="center">

<ImageView
    android:id="@+id/userIMG"
    android:layout_width="300dp"
    android:layout_height="300dp"
    android:layout_gravity="center"
    android:scaleType="fitCenter"
    android:layout_centerInParent="true"
    android:src="@drawable/logo"/>


    </LinearLayout>
     </layout>

Upvotes: 0

hamid
hamid

Reputation: 79

the important thing that google doesn't refer in its websiet is you must convert your layout to data binding layout like this :

enter image description here

also you'd better visit this website https://developer.android.com/codelabs/android-databinding#2

Upvotes: 1

mhKarami
mhKarami

Reputation: 1014

I am using android studio 3.6.1 the problem solved after adding viewBinding.enabled = true to android{ in build.gradle :

android {

...
    dataBinding {
        enabled = true
    }
    viewBinding.enabled = true

Update: Make sure you add apply plugin: 'kotlin-android-extensions' in top of App Module gradle file :

  plugins {
    id 'com.android.application'
    id 'kotlin-android'
    id 'kotlin-kapt'
    id 'kotlin-android-extensions' //<--
  }

Upvotes: 8

Alireza Noorali
Alireza Noorali

Reputation: 3265

Starting from Android Gradle Plugin 4.0.0-alpha05 there is a new block called buildFeatures to enable build features.

buildFeatures {
    dataBinding true
    viewBinding true // for view binding:
}

and you need viewBinding true to solve your problem.

Upvotes: -1

S.Javed
S.Javed

Reputation: 403

This seems to be fixed with Android studio 3.6.3. Although 

viewBinding.enabled = true

worked for me as well instead of 

viewBinding {
    enabled = true
}

Upvotes: 1

rmirabelle
rmirabelle

Reputation: 6454

It does appear there's a bug in the latest Android data binding library. Cleaning the project did not work. Rebuilding the project did not work. Invalidating caches and restarting did not work.

The ONLY solution that worked for me was rolling back the data binding version from version 2 (which is the new default in Android Studio 3.6.1 and higher) to version 1. To do this, you don't have to roll back ALL of Android Studio. Instead you can add the following line to gradle.properties:

android.databinding.enableV2=false

TLDR; I'm wondering whether Google has decided to completely revamp the way we're supposed to do data binding with their latest data binding compiler. It wouldn't be surprising if the team was working to provide YAS (yet another syntax). After all, DataBindingUtil.inflate<MyClassBindingImpl> has got to be one of the most bizarre usage patterns in all of computer programming, requiring the compiler to auto-generate a concrete implementation of a generic data binding class BEFORE you can reference the auto-generated class in your code. BTW, this is why tools like Make Project exist. I half-expect a complete overhaul to the data binding syntax to arrive shortly.

Upvotes: 2

Rui
Rui

Reputation: 1016

Just update your Gradle version to the latest. Go to:

File > Project Structure > Gradle Version

And select the latest stable version (currently 6.3). Check also your Android Gradle Plugin Version if it's also pointing to the latest.

Upvotes: 5

Marjan Davodinejad
Marjan Davodinejad

Reputation: 509

i had this problem cause i had separate my layouts into several directory and define them in gradle like bellow

sourceSets {
    main {
        res.srcDirs =
                [
                        'src/main/res', 'src/main/drawable/button_icons', 'src/main/res/drawable/button_icons',

                        'src/main/res', 'src/main/layouts/user', 'src/main/res/layouts/user',
                        'src/main/res/layouts', 'src/main/layouts/user', 'src/main/res/layouts/user/register',
                        'src/main/res/layouts', 'src/main/layouts/user', 'src/main/res/layouts/user/login',
                        'src/main/res/layouts', 'src/main/layouts/user', 'src/main/res/layouts/user/profile',
                        'src/main/res/layouts', 'src/main/layouts/user', 'src/main/res/layouts/user/wallet',

                        'src/main/res/layouts/splash_layouts', 'src/main/res/layouts', 'src/main/res',

                        'src/main/res/layouts/main_layouts', 'src/main/res/layouts', 'src/main/res',
                        'src/main/res/layouts/main_layouts/sellers', 'src/main/res/layouts/main_layouts', 'src/main/res/layouts',

                        'src/main/res/layouts/dashboard_layouts', 'src/main/res/layouts', 'src/main/res',

                        'src/main/res/layouts/basket_layouts', 'src/main/res/layouts', 'src/main/res',
                        'src/main/res/layouts/factor_layouts', 'src/main/res/layouts', 'src/main/res',

                        'src/main/res/layouts/setting_layouts', 'src/main/res/layouts', 'src/main/res',
                ]
    }

}

So I put all the layouts in the main layout directory and delete other sub layout directories

Upvotes: 1

Jiř&#237; Křiv&#225;nek
Jiř&#237; Křiv&#225;nek

Reputation: 421

This happened to me as well. The binding classes are actually generated. The project builds fine. Only Android Studio 3.6.1 (or underlying Gradle build system, I do not care) is buggy and cannot see these classes.

As an intermediate solution, I just hacked the source sets (please note that build variants in the fragment below are specific to my project, you need to rewrite it).

android {
    ...
    sourceSets {
        demoDebug {
            java.srcDirs += 'build/generated/data_binding_base_class_source_out/demoDebug/out'
        }
        fullDebug {
            java.srcDirs += 'build/generated/data_binding_base_class_source_out/fullDebug/out'
        }
        espressoDebug {
            java.srcDirs += 'build/generated/data_binding_base_class_source_out/espressoDebug/out'
        }
        demoRelease {
            java.srcDirs += 'build/generated/data_binding_base_class_source_out/demoRelease/out'
        }
        fullRelease {
            java.srcDirs += 'build/generated/data_binding_base_class_source_out/fullRelease/out'
        }
        espressoRelease {
            java.srcDirs += 'build/generated/data_binding_base_class_source_out/espressoRelease/out'
        }
    }
    ...
}

As pointed by Steve above: In the mean time, we have to patiently wait for Google to fix it...

EDIT

I have just realised it is MUCH more buggy than I expected, the layouts are broken too:

Please please dear Google: Do not release unstable intermediate versions to us"

I hope Google will fix this mess soon...

EDIT 2

I have realized again that Android Studio 3.6 is even more buggy than described above.

The execution of existing Espresso tests is broken too.

I strongly discourage everyone from upgrading to Android Studio 3.6.

I the mean time, we will probably downgrade back to Android Studio 3.5.

Upvotes: 6

Dhruv Patel
Dhruv Patel

Reputation: 569

For AndroidStudio 3.6.1, You can add below code in to app level build.gradle(:app). My problem is solved by adding this line, hope your's too.

sourceSets {
     main {
          java.srcDirs += 'build/generated/data_binding_base_class_source_out/debug/out'
        }
    }

Upvotes: 3

oitantksi
oitantksi

Reputation: 21

It happened to me too. I just upgraded Graddle version to 3.6.0 on project build.graddle file and now it's working again.

Upvotes: 0

Steve
Steve

Reputation: 1

Also happened to me. This is because in AS 3.6.0, we can't access binding from another module if we use include tag with android:id. I think this error is from the IDE because i can run the project successfully. The only thing to do is wait for the fix or just ignore the error.

Upvotes: 0

Prakash Reddy
Prakash Reddy

Reputation: 1002

Try re-building project and see whether data binding folder is available in generated files

Upvotes: 0

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