Android QRcode Create

test device : note 4

android os : Marshmallow 6.0

 

 

build.gradle

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implementation 'com.android.support:appcompat-v7:27.1.1' implementation 'com.journeyapps:zxing-android-embedded:3.6.0'

activity_qrcode.xml

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<?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=".QrcodeActivity">     <LinearLayout         android:layout_width="match_parent"         android:layout_height="match_parent"         android:orientation="vertical">         <androidx.appcompat.widget.Toolbar             android:id="@+id/tbToolBar"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:background="?attr/colorPrimary"             android:minHeight="?attr/actionBarSize"             android:theme="?attr/actionBarTheme"             app:title="Barcode Print" />         <ImageView             android:id="@+id/ivQRcode"             android:layout_width="match_parent"             android:layout_height="275dp"/>         <EditText             android:id="@+id/etQRcode"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:text="bardcode1234" />           <Button             android:id="@+id/btnCreate"             android:layout_width="match_parent"             android:layout_height="wrap_content"             android:text="QR code Create"             android:onClick="btnCreateOnClick"             />     </LinearLayout> </androidx.constraintlayout.widget.ConstraintLayout>

QrcodeActivity.java

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package com.example.sampleproject;   import androidx.appcompat.app.AppCompatActivity;   import android.graphics.Bitmap; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.EditText; import android.widget.ImageView;   import com.example.sampleproject.Norang.NorangActivity; import com.google.zxing.BarcodeFormat; import com.google.zxing.MultiFormatWriter; import com.google.zxing.WriterException; import com.google.zxing.common.BitMatrix; import com.journeyapps.barcodescanner.BarcodeEncoder;   public class QrcodeActivity extends NorangActivity {       private EditText etQRcode;     private ImageView ivQRcode;       @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_qrcode);         InitializeControl();         InitializeCommonDataBind();     }       private void InitializeCommonDataBind() {     }       private void InitializeControl() {         ivQRcode = findViewById(R.id.ivQRcode);         etQRcode = findViewById(R.id.etQRcode);         toolbar = findViewById(R.id.tbToolBar);         setToolbar("");     }       public void btnCreateOnClick(View view)     {         String qrCodeText = etQRcode.getText().toString();           try{             MultiFormatWriter multiFormatWriter = new MultiFormatWriter();             BitMatrix bitMatrix = multiFormatWriter.encode(qrCodeText, BarcodeFormat.QR_CODE,300,300);             BarcodeEncoder barcodeEncoder = new BarcodeEncoder();             Bitmap bitmap = barcodeEncoder.createBitmap(bitMatrix);             ivQRcode.setImageBitmap(bitmap);         }catch (Exception e){             Log.e("btnCreateOnClick", e.getMessage());         }     } }