Android QRcode Create

test device : note 4

android os : Marshmallow 6.0

 

 

build.gradle

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

activity_qrcode.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=".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

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()); } } }