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Android

Android Barcode Create

by 캡틴노랑이 2021. 3. 17.
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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_barcode_print.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=".BarcodePrintActivity">
    <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/ivBarcode"
            android:layout_width="match_parent"
            android:layout_height="150dp"/>
        <EditText
            android:id="@+id/etBarcode"
            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="Barcode Create"
            android:onClick="btnBarcodeCreateOnClick"
            />
    </LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
    

 

BarcodePrintActivity.java

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package com.example.sampleproject;
 
import androidx.appcompat.app.AppCompatActivity;
 
import android.graphics.Bitmap;
import android.graphics.Color;
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.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;
 
import java.lang.String;
import java.util.EnumMap;
import java.util.Map;
 
public class BarcodePrintActivity extends NorangActivity {
    private ImageView ivBarcode;
    private EditText etBarcode;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_barcode_print);
 
        InitializeControl();
        InitializeCommonDataBind();
    }
 
    private void InitializeCommonDataBind() {
    }
 
    private void InitializeControl() {
        toolbar = findViewById(R.id.tbToolBar);
        ivBarcode = findViewById(R.id.ivBarcode);
        etBarcode = findViewById(R.id.etBarcode);
 
        setToolbar("");
    }
 
    public void btnBarcodeCreateOnClick(View view)
    {
        String barcodeText = etBarcode.getText().toString();
 
        try {
            Bitmap bitmap = CreateBarcode(barcodeText, BarcodeFormat.CODE_128 , 500 , 100);
            ivBarcode.setImageBitmap(bitmap);
        } catch (WriterException e) {
            Log.e("btnBarcodeCreateOnClick", e.getMessage());
        }
    }
 
    private Bitmap CreateBarcode(String barcodeText, BarcodeFormat barcodeFormat, int imageWidth, int imageHeight) throws WriterException {
 
        MultiFormatWriter multiFormatWriter = new MultiFormatWriter();
        BitMatrix bitMatrix;
        Map<EncodeHintType, Object> map = new EnumMap<EncodeHintType, Object>(EncodeHintType.class);
 
        int width;
        int height;
        int[] pixels;
 
        if (barcodeText == null)
            return null;
 
        map.put(EncodeHintType.CHARACTER_SET, "UTF-8");
 
        try {
            bitMatrix = multiFormatWriter.encode(barcodeText, barcodeFormat, imageWidth, imageHeight, map);
        } catch (IllegalArgumentException e) {
            Log.e("CreateBarcode", e.getMessage());
            return null;
        }
 
        width = bitMatrix.getWidth();
        height = bitMatrix.getHeight();
        pixels = new int[width * height];
 
        for (int i = 0; i < height; i++) {
            for (int j = 0; j < width; j++)
                pixels[(i * width) + j] = bitMatrix.get(j, i) ? Color.BLACK : Color.WHITE;
        }
 
        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);//barcode
        bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
 
        return bitmap;
    }
}

 

 

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