CODEWITHSUNDEEP
androidkotlingradleandroid-viewbinding
Wizard28
Wizard28

Reputation: 387

Android Studio is giving errors and warnings after enabling view binding. How to fix?

I am getting errors after i enabled view binding in my project.

I have tried resyncing the project, invalidating cache. My app gradle file:

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.3"

    defaultConfig {
        applicationId "com.learning.aboutme"
        minSdkVersion 19
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }

    viewBinding.enabled = true

}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.core:core-ktx:1.2.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    testImplementation 'junit:junit:4.13'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
}

My project gradle file

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
     ext.kotlin_version = '1.3.72'
     repositories {
          google()
          jcenter()

     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.6.3'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

          // NOTE: Do not place your application dependencies here; they belong
          // in the individual module build.gradle files
     }
}

allprojects {
     repositories {
          google()
          jcenter()

     }
}

task clean(type: Delete) {
     delete rootProject.buildDir
}

My activity main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingStart="@dimen/padding"
    android:paddingEnd="@dimen/padding"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/name_text"
        style="@style/name_style"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/name"
        android:textAlignment="center" />

    <EditText
        android:id="@+id/nickname_edit"
        style="@style/name_style"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:ems="10"
        android:hint="@string/name_it_what_is_your_nickname"
        android:inputType="textPersonName"
        android:textAlignment="center" />

    <Button
        android:id="@+id/done_button"
        style="@style/Widget.AppCompat.Button.Colored"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="@dimen/layout_margin"
        android:fontFamily="@font/roboto"
        android:text="@string/done" />

    <TextView
        android:id="@+id/nickname_text"
        style="@style/name_style"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textAlignment="center"
        android:visibility="gone" />

    <ImageView
        android:id="@+id/star_Image"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="@dimen/layout_margin"
        android:contentDescription="@string/yellow_star"
        app:srcCompat="@android:drawable/btn_star_big_on" />

    <ScrollView
        android:id="@+id/bio_scroll"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:id="@+id/textView"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:lineSpacingMultiplier="@dimen/spacing_multiplier"
            android:text="@string/bio"
            android:textColor="@android:color/black" />
    </ScrollView>
</LinearLayout>

Here the android studio gives a warning on android:contentDescription,textAlignment, lineSpacingMultiplier, text etc

Here is my main activity.kt file:

package com.learning.aboutme

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.view.View
import com.learning.aboutme.databinding.ActivityMainBinding

class MainActivity : AppCompatActivity() {
    private lateinit var binding: ActivityMainBinding

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityMainBinding.inflate(layoutInflater)
        setContentView(R.layout.activity_main)
    }

    private fun addNickname(view: View) {

    }
}

Here android studio says: Cannot access android.viewbinding.ViewBinding which is a supertype of com.learning.aboutme.databinding.ActivityMainBinding. On ActivityMainBinding.inflate()

I tried creating a new project and moving my files there but the same errors ( Tried moving activity_main.xml and the same errors.

How to fix this?

Upvotes: 16

Views: 18766

Answers (14)

Mathew
Mathew

Reputation: 1

Just keep the settings as it is.

Try to delete the dataBinding modules from the path C:\Users\"your user name"\.gradle\caches\modules-2\files-2.1.

Try to sync the project once the deletion is done.

The viewBinding issue got resolved for me in that way.

Upvotes: 0

Primož Ivančič
Primož Ivančič

Reputation: 2366

To me this happened because I had my layout wrapped into <layout> tag. This tag is only needed if you use data binding and causes issues when used with view binding alone.

Upvotes: 0

Umer Siddique
Umer Siddique

Reputation: 1

For me the error went away when I added

implementation 'com.android.databinding:viewbinding:7.3.1' to the build.gradle file.

This dependency contains android.viewbinding.ViewBinding which android studio may not be able to access without this dependency.

Upvotes: 0

jenos kon
jenos kon

Reputation: 564

I faced the same problem and I fix it by doing the steps below:

1- go to build.gradle file and remove buildFeatures { viewBinding = true } if you already put it there
2-synch
3-Clean and Rebuild the project.
4-put viewBinding back again buildFeatures { viewBinding = true}
5-synch again

Upvotes: 0

user19400178
user19400178

Reputation: 1

i adding dependencies in build.gradle

  • implementation 'com.android.databinding:viewbinding:4.0.1'

Upvotes: 0

Roman Nazarevych
Roman Nazarevych

Reputation: 7703

In my case the following steps (clearing of cache) did help:

Step 1 : open Terminal and goto your project path in terminal.
Step 2 : Optional Hit this command git clean -xfd or safe variant git clean. Be careful with -xfd this as this removes untracked files and .gitignore files
Step 3 : Goto : File -> Invalidate caches/restart.

Upvotes: 12

Daniel Iroka
Daniel Iroka

Reputation: 133

I faced this exact error today when I used viewBinding in my fragment so what helped was

  1. Clean and Rebuild project.
  2. Invalidate caches and restart.

Somehow the Invalidate caches and restart to be specific solved the issue.

Upvotes: 1

josecaldev
josecaldev

Reputation: 21

Had the same problem with that error

android.viewbinding.ViewBinding which is a supertype of com.learning.aboutme.databinding.ActivityMainBinding. On ActivityMainBinding.inflate()

What I did and solved it was erasing from the build.grade module

viewBinding{
   enabled = true
}

And Sync it, after re added the erased code from the module and sync again and voila! That solved it for me. Thanks for all other responses tho

Upvotes: 2

Sushant Gosavi
Sushant Gosavi

Reputation: 3825

Facing same issue exact error yesterday. Solution work for me is

  • Step 1- Remove .Idea Folder
  • Step 2- Close android studio
  • Step 3- Reopen android studio with same project path (This will genarate new .Idea folder)

and Error is gone

Making sure

  1. android.useAndroidX=true. inside gradle.properties file
  2. inside app build.gradle
 buildFeatures {
       viewBinding true
 }
  1. Always Use folder structure with small case latter only class name is allowed to be Uppercase
  2. If you are using any Copyright-Comment at top of xml or Layout tag without variable tag or we can say without any data then remove that and try to clean/rebuild project

Upvotes: 10

saman shahsavari
saman shahsavari

Reputation: 21

You can try this solution:

add "multiDexEnabled true" in gradle file like below

android {
compileSdk 30

defaultConfig {
    applicationId "com.example.test"
    minSdk 19
    targetSdk 30
    versionCode 1
    versionName "1.0"
    multiDexEnabled true

    testInstrumentationRunner 'androidx.test.runner.AndroidJUnitRunner'
}}

Upvotes: 0

Sijan Neupane
Sijan Neupane

Reputation: 116

Error Solved for me By: Adding below line in the gradle.properties(Project Propoerties) file:

android.useAndroidX=true

Upvotes: 0

some1
some1

Reputation: 1

Here's what worked for me:

I initially had the build.gradle(Module: App_name.app) file opened in Android Studio.

Then I opened the "Project Structure" window ... There, at the left pane, I opened the "suggestions" tab.

Several Suggestions for updating things were there, which I selected and pressed OK , after which they started getting updated from internet, and after that, did Gradle sync, and all Errors were gone in the MainActivity.kt file.

Upvotes: -1

fahrizal89
fahrizal89

Reputation: 825

I found the solution from here: https://cdmana.com/2021/05/20210511224308742x.html . Just add at gradle.properties

//...
android.enableD8=true
android.injected.testOnly=false

I hope it will solving your problem

Upvotes: 2

uwe
uwe

Reputation: 4081

For me the error went away when I added

implementation 'com.android.databinding:viewbinding:4.0.1'

to the build.gradle file.

This dependency contains the class android.viewbinding.ViewBinding which AndroidStudio could not access.

Upvotes: 45

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