shiv :
i tried to add the dependency for qr code scanner
upon implementing this dependency i'm getting
implementation 'com.google.firebase:firebase-ml-vision-barcode-model:16.0.1'
FAILURE: Build failed with an exception.
* What went wrong:
In project 'app' a resolved Google Play services library dependency depends on another at an exact version (e.g. "[22.0.
0]", but isn't being resolved to that version. Behavior exhibited by the library will be unknown.
Dependency failing: com.google.firebase:firebase-ml-vision-barcode-model:16.0.1 -> com.google.firebase:firebase-ml-commo
n@[22.0.0], but firebase-ml-common version was 22.0.1.
The following dependencies are project dependencies that are direct or have transitive dependencies that lead to the art
ifact with the issue.
-- Project 'app' depends onto com.google.firebase:firebase-ml-vision@{strictly 24.0.1}
-- Project 'app' depends onto com.google.firebase:firebase-ml-common@{strictly 22.0.1}
-- Project 'app' depends onto com.google.firebase:firebase-ml-vision-barcode-model@{strictly 16.0.1}
-- Project 'app' depends onto com.google.firebase:[email protected]
-- Project 'app' depends onto com.google.firebase:[email protected]
For extended debugging info execute Gradle from the command line with ./gradlew --info :app:assembleDebug to see the dep
endency paths to the artifact. This error message came from the google-services Gradle plugin, report issues at https://
github.com/google/play-services-plugins and disable by adding "googleServices { disableVersionCheck = false }" to your b
uild.gradle file.
* Try:
Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Exception is:
com.intellij.openapi.externalSystem.model.ExternalSystemException: In project 'app' a resolved Google Play services library dependency depends on another at an exact version (e.g. "[22.0.
0]", but isn't being resolved to that version. Behavior exhibited by the library will be unknown.
Dependency failing: com.google.firebase:firebase-ml-vision-barcode-model:16.0.1 -> com.google.firebase:firebase-ml-commo
n@[22.0.0], but firebase-ml-common version was 22.0.1.
Also,
gradle and google services version
classpath 'com.android.tools.build:gradle:3.6.0'
classpath 'com.google.gms:google-services:4.3.3'
and gradle wrapper properties
distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-all.zip
vikas :
remove this plugin
implementation 'com.google.firebase:firebase-ml-vision-barcode-model:16.0.1'
and refer this link add qr code scanner
https://www.javatpoint.com/android-qr-code-or-bar-code-scanner
to ease
package com.tvastr.mvvmarchitecture;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.util.SparseArray;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.vision.CameraSource;
import com.google.android.gms.vision.Detector;
import com.google.android.gms.vision.barcode.Barcode;
import com.google.android.gms.vision.barcode.BarcodeDetector;
import com.google.firebase.ml.vision.barcode.FirebaseVisionBarcode;
import com.google.firebase.ml.vision.barcode.FirebaseVisionBarcodeDetectorOptions;
import java.io.IOException;
public class ScannedBarcodeActivity extends AppCompatActivity {
SurfaceView surfaceView;
TextView txtBarcodeValue;
private BarcodeDetector barcodeDetector;
private CameraSource cameraSource;
private static final int REQUEST_CAMERA_PERMISSION = 201;
Button btnAction;
String intentData = "";
boolean isEmail = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_scanned_barcode);
initViews();
}
private void initViews() {
txtBarcodeValue = findViewById(R.id.txtBarcodeValue);
surfaceView = findViewById(R.id.surfaceView);
btnAction = findViewById(R.id.btnAction);
btnAction.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (intentData.length() > 0) {
Log.d("log", "intentData email : " + intentData);
}
}
});
}
private void initialiseDetectorsAndSources() {
Toast.makeText(getApplicationContext(), "Barcode scanner started", Toast.LENGTH_SHORT).show();
barcodeDetector = new BarcodeDetector.Builder(this)
.setBarcodeFormats(Barcode.QR_CODE)
.build();
cameraSource = new CameraSource.Builder(this, barcodeDetector)
.setRequestedPreviewSize(1920, 1080)
.setAutoFocusEnabled(true) //you should add this feature
.build();
surfaceView.getHolder().addCallback(new SurfaceHolder.Callback() {
@Override
public void surfaceCreated(SurfaceHolder holder) {
if (ActivityCompat.checkSelfPermission(ScannedBarcodeActivity.this, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED) {
try {
cameraSource.start(surfaceView.getHolder());
} catch (IOException e) {
e.printStackTrace();
}
} else {
ActivityCompat.requestPermissions(ScannedBarcodeActivity.this, new
String[]{Manifest.permission.CAMERA}, REQUEST_CAMERA_PERMISSION);
}
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
cameraSource.stop();
}
});
barcodeDetector.setProcessor(new Detector.Processor<Barcode>() {
@Override
public void release() {
Toast.makeText(getApplicationContext(), "To prevent memory leaks barcode scanner has been stopped", Toast.LENGTH_SHORT).show();
}
@Override
public void receiveDetections(Detector.Detections<Barcode> detections) {
final SparseArray<Barcode> barcodes = detections.getDetectedItems();
if (barcodes.size() != 0) {
txtBarcodeValue.post(new Runnable() {
@Override
public void run() {
if (barcodes.valueAt(0).email != null) {
txtBarcodeValue.removeCallbacks(null);
intentData = barcodes.valueAt(0).email.address;
txtBarcodeValue.setText(intentData);
isEmail = true;
btnAction.setText("ADD CONTENT TO THE MAIL");
} else {
isEmail = false;
btnAction.setText("LAUNCH URL");
intentData = barcodes.valueAt(0).displayValue;
txtBarcodeValue.setText(intentData);
}
}
});
}
}
});
}
@Override
protected void onPause() {
super.onPause();
cameraSource.release();
}
@Override
protected void onResume() {
super.onResume();
initialiseDetectorsAndSources();
}
}
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="20dp">
<SurfaceView
android:id="@+id/surfaceView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@+id/btnAction"
android:layout_alignParentStart="true"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true" />
<TextView
android:id="@+id/txtBarcodeValue"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginStart="10dp"
android:layout_marginLeft="10dp"
android:text="No Barcode Detected"
android:textColor="@android:color/white"
android:textSize="20sp" />
<Button
android:id="@+id/btnAction"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="ADD CONTENT IN THE MAIL" />
</RelativeLayout>