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Bar-code Generator - Android Tutorial

This tutorial explains how to generate bar-code or QR-code for the selling product

By this application you can generate QR, Code 39, Code 128 and EAN13

How this codes get generated ?

Using the library itextpdf-5.5.6.jar


I have created a simple app to demonstrate this tutorial. Below is the screenshot of the app which contains 5 buttons, 2 edit box and 3 radio buttons.


Enter in Data field and Description field and select the radio button(where the description want to display) and touch your required code button.


Each type of bar code has their validation
You will get the bar code output in the form  of PDF as given,

 
   
  

You can test the above codes by reading using the app Barcode Reader available in Google Play


Now follow the coding to develop this simple application 

1. activity_main.xml

<LinearLayout 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:orientation="vertical" 
    android:layout_marginLeft="15dp"
    android:layout_marginRight="15dp"
    android:background="@color/greenish_brown">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:orientation="horizontal"
        android:padding="5dp" >

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="Data" />

        <EditText
            android:id="@+id/data"
            style="@style/Editbox"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:orientation="horizontal"
        android:padding="5dp" >

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="Description" />

        <EditText
            android:id="@+id/description"
            style="@style/Editbox"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:orientation="horizontal"
        android:padding="5dp" >

        <TextView
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="Position of Description" />

        <RadioGroup
            android:id="@+id/rbgroup"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1" >

            <RadioButton
                android:id="@+id/rbbelow"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:checked="true"
                android:text="Below" />

            <RadioButton
                android:id="@+id/rbabove"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Above" />

            <RadioButton
                android:id="@+id/rbnone"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="None" />
        </RadioGroup>
    </LinearLayout>

    <Button
        android:id="@+id/qrcode"
        style="@style/BtnStyle4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="QRCode" />

    <Button
        android:id="@+id/code39"
        style="@style/BtnStyle4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="5dp"
        android:text="Code 39" />

    <Button
        android:id="@+id/code128"
        style="@style/BtnStyle4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="5dp"
        android:text="Code 128" />

    <Button
        android:id="@+id/ean13"
        style="@style/BtnStyle4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="5dp"
        android:text="EAN13" />

    <Button
        android:id="@+id/openpdf"
        style="@style/BtnStyle5"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="5dp"
        android:text="Open PDF" />


</LinearLayout>



2. MainActivity.java

Use the following coding in your MainActivity class

public class MainActivity extends Activity {

private Button btnqrcode;
private Button btncode39;
private Button btncode128;
private Button btnean13;
private Button btnopen;

private EditText txtdata;
private EditText txtdes;

private RadioGroup rgroup;

private RadioButton below;
private RadioButton above;
private RadioButton none;

private String data = "";
private String desc = "";
private String pos = "Below";

private PdfContentByte cb;
private File file;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

btnqrcode = (Button) findViewById(R.id.qrcode);
btncode39 = (Button) findViewById(R.id.code39);
btncode128 = (Button) findViewById(R.id.code128);
btnean13 = (Button) findViewById(R.id.ean13);
btnopen = (Button) findViewById(R.id.openpdf);

txtdata = (EditText) findViewById(R.id.data);
txtdes = (EditText) findViewById(R.id.description);

rgroup = (RadioGroup) findViewById(R.id.rbgroup);

below = (RadioButton) findViewById(R.id.rbbelow);
above = (RadioButton) findViewById(R.id.rbabove);
none = (RadioButton) findViewById(R.id.rbnone);

String path = "";

Give the path for PDF

rgroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {

@Override
public void onCheckedChanged(RadioGroup arg0, int arg1) {
if (below.isChecked() == true) {
pos = "Below";
} else if (above.isChecked() == true) {
pos = "Above";
} else if (none.isChecked() == true) {
txtdes.setText("");
pos = "None";
}
}
});

btnqrcode.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View arg0) {
try {
data = txtdata.getText().toString();
desc = txtdes.getText().toString();

boolean flag = true;

if (pos.equals("None")) {
if (data.length() > 0) {
flag = true;
} else {
flag = false;
}
} else {
if (data.length() > 0 && desc.length() > 0) {
flag = true;
} else {
flag = false;
}
}

if (flag == true) {
Document doc = new Document(new Rectangle(400, 500));
PdfWriter writer = PdfWriter.getInstance(doc,
new FileOutputStream(file));
doc.open();
cb = writer.getDirectContent();

doc.add(new Paragraph("QRCode"));
BarcodeQRCode qrcode = new BarcodeQRCode(data, 1, 1,
null);
Image img4 = qrcode.getImage();
img4.scaleToFit(100, 100);
if (pos.equals("Above") && !desc.equals("")) {
doc.add(new Paragraph(desc));
doc.add(img4);
} else if (pos.equals("Below") && !desc.equals("")) {
doc.add(img4);
doc.add(new Paragraph(desc));
} else if (pos.equals("None")) {
doc.add(img4);
}

doc.close();
Toast.makeText(getApplicationContext(),
"QRCode Created...", Toast.LENGTH_LONG).show();
txtdata.setText("");
txtdes.setText("");
} else {
Toast.makeText(getApplicationContext(),
"Please enter all data...", Toast.LENGTH_LONG)
.show();
}

} catch (Exception e) {

}

}
});

btncode39.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
try {
data = txtdata.getText().toString();
desc = txtdes.getText().toString();

boolean flag = true;

if (pos.equals("None")) {
if (data.length() > 0) {
flag = true;
} else {
flag = false;
}
} else {
if (data.length() > 0 && desc.length() > 0) {
flag = true;
} else {
flag = false;
}
}

if (flag == true) {
Document doc = new Document(new Rectangle(400, 500));
PdfWriter writer = PdfWriter.getInstance(doc,
new FileOutputStream(file));
doc.open();
cb = writer.getDirectContent();

doc.add(new Paragraph("Code 39"));
Barcode39 code39 = new Barcode39();
code39.setCode(data);
Image img3 = code39.createImageWithBarcode(cb, null,
null);
img3.scaleToFit(200, 200);
if (pos.equals("Above") && !desc.equals("")) {
doc.add(new Paragraph(desc));
doc.add(img3);
} else if (pos.equals("Below") && !desc.equals("")) {
doc.add(img3);
doc.add(new Paragraph(desc));
} else if (pos.equals("None")) {
doc.add(img3);
}
doc.close();
Toast.makeText(getApplicationContext(),
"Code 39 Created...", Toast.LENGTH_LONG).show();
txtdata.setText("");
txtdes.setText("");
} else {
Toast.makeText(getApplicationContext(),
"Please enter all data...", Toast.LENGTH_LONG)
.show();
}
} catch (Exception e) {

}

}
});

btncode128.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
try {
data = txtdata.getText().toString();
desc = txtdes.getText().toString();
boolean flag = true;

if (pos.equals("None")) {
if (data.length() > 0) {
flag = true;
} else {
flag = false;
}
} else {
if (data.length() > 0 && desc.length() > 0) {
flag = true;
} else {
flag = false;
}
}

if (flag == true) {
Document doc = new Document(new Rectangle(400, 500));
PdfWriter writer = PdfWriter.getInstance(doc,
new FileOutputStream(file));
doc.open();
cb = writer.getDirectContent();

doc.add(new Paragraph("Code 128"));
Barcode128 code128 = new Barcode128();
code128.setCode(data);
Image img2 = code128.createImageWithBarcode(cb, null,
null);
img2.scaleToFit(200, 200);
if (pos.equals("Above")) {
doc.add(new Paragraph(desc));
doc.add(img2);
} else if (pos.equals("Below")) {
doc.add(img2);
doc.add(new Paragraph(desc));
} else {
doc.add(img2);
}
doc.close();
Toast.makeText(getApplicationContext(),
"Code 128 Created...", Toast.LENGTH_LONG)
.show();
txtdata.setText("");
txtdes.setText("");
} else {
Toast.makeText(getApplicationContext(),
"Please enter all data...", Toast.LENGTH_LONG)
.show();
}
} catch (Exception e) {

}

}
});

btnean13.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
try {
data = txtdata.getText().toString();
desc = txtdes.getText().toString();
boolean flag = true;

String error="";
if (txtdata.length() > 0) {
if (txtdata.length() >= 13) {
if ((data.matches("[0-9]+$")))
 {
error = null;
} else {
error = "Enter a valid Data e.g. : 1255684521453";
}
} else {
error = "Maximum of 13 characters are allowed";
}
} else {
error = "Enter a Data";
}
txtdata.setError(error);
if (pos.equals("None")) {
if (data.length() > 0) {
flag = true;
} else {
flag = false;
}
} else {
if (data.length() > 0 && desc.length() > 0) {
flag = true;
} else {
flag = false;
}
}

if (flag == true) {
Document doc = new Document(new Rectangle(400, 500));
PdfWriter writer = PdfWriter.getInstance(doc,
new FileOutputStream(file));
doc.open();
cb = writer.getDirectContent();

doc.add(new Paragraph("EAN 13"));
BarcodeEAN codeEAN = new BarcodeEAN();
codeEAN.setCode(data);
Image img1 = codeEAN.createImageWithBarcode(cb, null,
null);
img1.scaleToFit(200, 200);
if (pos.equals("Above")) {
doc.add(new Paragraph(desc));
doc.add(img1);
} else if (pos.equals("Below")) {
doc.add(img1);
doc.add(new Paragraph(desc));
} else {
doc.add(img1);
}
doc.close();
Toast.makeText(getApplicationContext(),
"EAN 13 Created...", Toast.LENGTH_LONG).show();
txtdata.setText("");
txtdes.setText("");
} else {
Toast.makeText(getApplicationContext(),
"Please enter all data...", Toast.LENGTH_LONG)
.show();
}
} catch (Exception e) {

}
}
});

coding on button for open PDF
}
}



______________________________________________________

APK for this application AllBarcode-Generator

For any other query or for source code feel free to mail - arnoldbrown009@gmail.com 


                                                    Happy Coding...




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