CODEWITHSUNDEEP
androidandroid-camerax
Garros JP
Garros JP

Reputation: 63

CameraX can't initialize

I try to use CameraView. And I'm a beginner in Android. I read some articles and information on class but I am not able to make it works. I have the following errors :

Caused by: java.lang.IllegalStateException: CameraX is not initialized properly. Either CameraX.initialize() needs to have been called or the CameraXConfig.Provider interface must be implemented by your Application class

Here is my code :

activity_main.xml 

   <?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
tools:context=".MainActivity"
android:theme="@style/AppTheme">

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Hello World!"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    app:layout_constraintTop_toTopOf="parent" />

<androidx.camera.view.CameraView
    android:id="@+id/view_camera"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

MainActivity.java:

    package com.example.myapplication;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.camera.camera2.Camera2Config;
import androidx.camera.core.CameraX;
import androidx.camera.core.CameraXConfig;
import androidx.camera.core.impl.CameraFactory;
import androidx.camera.core.impl.PreviewConfig;
import androidx.camera.view.CameraView;

import android.os.Bundle;


public class MainActivity extends AppCompatActivity implements CameraXConfig.Provider {

    private CameraView view_camera;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        view_camera = findViewById(R.id.view_camera);
        view_camera.bindToLifecycle(this);
    }

    @NonNull
    @Override
    public CameraXConfig getCameraXConfig() {
        return Camera2Config.defaultConfig();
    }
}

And the manifest :

<?xml version="1.0" encoding="utf-8"?>


<uses-permission android:name="android.permission.CAMERA" />

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity android:name=".MainActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

The gradle file for app:

    apply plugin: 'com.android.application'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.1"
    defaultConfig {
        applicationId "com.example.myapplication"
        minSdkVersion 26
        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'
        }
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    def camerax_version = "1.0.0-alpha10"// Add the CameraX core dependency implementation
    implementation "androidx.camera:camera-core:${camerax_version}"// Add the CameraX Camera2 API interop support dependency
    implementation "androidx.camera:camera-camera2:${camerax_version}"
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
    implementation "androidx.camera:camera-view:1.0.0-alpha06"
    // If you want to use the CameraX Extensions library
    implementation "androidx.camera:camera-extensions:1.0.0-alpha06"
    // If you want to use the CameraX Lifecycle library
    implementation "androidx.camera:camera-lifecycle:1.0.0-alpha03"
}

Thanks for your help.

Upvotes: 4

Views: 11813

Answers (7)

Noel
Noel

Reputation: 7410

My camera-camera2 and camera-lifecycle libraries were using version 1.0.2 while the camera-view library was using 1.1.0-beta01.

Changing them all to use 1.1.0-beta01 fixed it.

I'm guessing something in the upgrade from 1.0.2 to 1.1.0-beta01 causes an initialization error.

Upvotes: 0

GarryMoveOut
GarryMoveOut

Reputation: 377

Non of all this suggestion doesn't help me. My PreviewView was on Fragment not in Activity.

In my case I have to add class MyApplication which implements CameraXConfig.Provider

public class MyApp extends Application implements CameraXConfig.Provider {
@Override
public CameraXConfig getCameraXConfig() {
    return CameraXConfig.Builder.fromConfig(Camera2Config.defaultConfig())
            //.setCameraExecutor(myExecutor)
            //.setSchedulerHandler(mySchedulerHandler)
            .build();
}

}

Next thing I got to do it was to change from getInstance(this) to:

cameraProviderFuture = ProcessCameraProvider.getInstance(getActivity().getApplicationContext());

Full code:

private void startCamera() {
    Log.d(TAG, "startCamera: starting camera");
    cameraProviderFuture = ProcessCameraProvider.getInstance(getActivity().getApplicationContext());
    cameraProviderFuture.addListener(() -> {
        try {
            ProcessCameraProvider cameraProvider = cameraProviderFuture.get();
            bindCameraPreview(cameraProvider);
        } catch (ExecutionException | InterruptedException e)
            Log.e(TAG, "startCamera: Error during starting camera", e);
        }
    }, ContextCompat.getMainExecutor(requireContext()));
}

private void bindCameraPreview(@NonNull ProcessCameraProvider cameraProvider) {
    Log.d(TAG, "bindCameraPreview: start");
    previewView.setImplementationMode(PreviewView.ImplementationMode.PERFORMANCE);

    Preview preview = new Preview.Builder()
            .build();

    preview.setSurfaceProvider(previewView.getSurfaceProvider());

    CameraSelector cameraSelector = new CameraSelector.Builder()
            .requireLensFacing(CameraSelector.LENS_FACING_BACK)
            .build();

    Camera camera = cameraProvider.bindToLifecycle((LifecycleOwner)this, cameraSelector, preview);
}

Upvotes: 0

thijsonline
thijsonline

Reputation: 1227

createSurfaceProvider() has been renamed to getSurfaceProvider():

preview?.setSurfaceProvider(viewFinder.surfaceProvider)

Credits: https://stackoverflow.com/a/63993443/3176753

Upvotes: 3

lucianzr1
lucianzr1

Reputation: 31

None of the solutions from here worked for me, and I'm on 1.0.0-beta08 version of CameraX. What worked for me was to make sure that I'm calling the statement

Preview.Builder()
    .build()
    .also {
        it.setSurfaceProvider(viewFinder.createSurfaceProvider())
    }

after the future from ProcessCameraProvider.getInstance(context) gets resolved.

So while I was trying to save a reference to the preview in the fragment, I ended up with something like this:

private fun startCamera() {
    val context = requireContext()
    val cameraProviderFuture = ProcessCameraProvider.getInstance(context)
    cameraProviderFuture.addListener({
        val cameraProvider = cameraProviderFuture.get()

        val cameraSelector = CameraSelector.Builder()
            .requireLensFacing(CameraSelector.LENS_FACING_BACK)
            .build()

        val preview = Preview.Builder()
            .build()
            .also {
                it.setSurfaceProvider(viewFinder.createSurfaceProvider())
            }

        cameraProvider.bindToLifecycle(this, cameraSelector, preview)
    }, ContextCompat.getMainExecutor(context))
}

Upvotes: 3

Rocky666
Rocky666

Reputation: 111

Please try these steps. I had the same issue and I fixed it like this.

  1. Add the latest CameraX dependencies to your gradle:

    def camerax_version = "1.0.0-beta06"
implementation "androidx.camera:camera-core:${camerax_version}"
implementation "androidx.camera:camera-camera2:${camerax_version}"
implementation "androidx.camera:camera-lifecycle:${camerax_version}"
implementation "androidx.camera:camera-view:1.0.0-alpha13"
implementation "androidx.camera:camera-extensions:1.0.0-alpha13"

  2. Add compileOptions JavaVersions within android{} in gradle and sync now:

    compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}

  3. Create a new Java class with the below attributes. Leave the rest as is:

    Name: CameraXIntApplication (You can give any name you like)
    Superclass: android.app.Application

  4. Go to the CameraXIntApplication class you just created and create the onCreate method. Note: I had to manually create the onCreate method in this class and it was not there by default. However you might get it by default.

  5. Inside onCreate, put the below code:

    CameraX.initialize(context: this, Camera2Config.defaultConfig());

  6. Open up your Manifest.xml. in <application>, give your Java class the name you created. If android:name is not there, you can create it:

    <application
    android:name=".CameraXIntApplication"
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    >

  7. From your main activity, remove these. They are not required any more:

    implements CameraXConfig.Provider from public class MainActivity extends AppCompatActivity implements CameraXConfig.Provider

    and this:

     @NonNull
 @Override
 public CameraXConfig getCameraXConfig() {
     return Camera2Config.defaultConfig();
 }

That's it. This should initialize the camera when your app gets opened.

Upvotes: 1

Claus Holst
Claus Holst

Reputation: 921

I faced the same issue with beta04 and had to add the camera2 dependency also:

implementation "androidx.camera:camera-camera2:1.0.0-beta04"

Upvotes: 2

Ravi
Ravi

Reputation: 2367

I faced the same issue with the latest alpha11 cameraX library, so downgraded to 

// CameraX View class
    implementation "androidx.camera:camera-view:1.0.0-alpha10"

Also added the camera info parameter

preview?.setSurfaceProvider(viewFinder.createSurfaceProvider(camera?.cameraInfo))

Upvotes: 4

Related Questions