# code-scanner
**Repository Path**: jre/code-scanner
## Basic Information
- **Project Name**: code-scanner
- **Description**: No description available
- **Primary Language**: Java
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No
## Statistics
- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-12-09
- **Last Updated**: 2021-12-09
## Categories & Tags
**Categories**: Uncategorized
**Tags**: None
## README
# 
[](https://bintray.com/yuriy-budiyev/maven/code-scanner/_latestVersion)
[](https://android-arsenal.com/details/1/6095)
[](https://android-arsenal.com/api?level=19)
[](https://www.codacy.com/app/yuriy-budiyev/code-scanner?utm_source=github.com&utm_medium=referral&utm_content=yuriy-budiyev/code-scanner&utm_campaign=Badge_Grade)
Code scanner library for [Android](https://developer.android.com), based on [ZXing](https://github.com/zxing/zxing)
### Features
* Auto focus and flash light control
* Portrait and landscape screen orientations
* Back and front facing cameras
* Customizable viewfinder
* Kotlin friendly
* Touch focus
### Supported formats
| 1D product | 1D industrial | 2D
| ---------- | ------------- | --------------
| UPC-A | Code 39 | QR Code
| UPC-E | Code 93 | Data Matrix
| EAN-8 | Code 128 | Aztec
| EAN-13 | Codabar | PDF 417
| | ITF | MaxiCode
| | RSS-14 |
| | RSS-Expanded |
### Usage ([sample](https://github.com/yuriy-budiyev/lib-demo-app))
Add dependency:
```gradle
dependencies {
implementation 'com.budiyev.android:code-scanner:2.1.0'
}
```
Add camera permission to AndroidManifest.xml (Don't forget about dynamic permissions on API >= 23):
```xml
```
Define a view in your layout file:
```xml
```
And add following code to your activity:
Kotlin
```kotlin
class MainActivity : AppCompatActivity() {
private lateinit var codeScanner: CodeScanner
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
val scannerView = findViewById(R.id.scanner_view)
codeScanner = CodeScanner(this, scannerView)
// Parameters (default values)
codeScanner.camera = CodeScanner.CAMERA_BACK // or CAMERA_FRONT or specific camera id
codeScanner.formats = CodeScanner.ALL_FORMATS // list of type BarcodeFormat,
// ex. listOf(BarcodeFormat.QR_CODE)
codeScanner.autoFocusMode = AutoFocusMode.SAFE // or CONTINUOUS
codeScanner.scanMode = ScanMode.SINGLE // or CONTINUOUS or PREVIEW
codeScanner.isAutoFocusEnabled = true // Whether to enable auto focus or not
codeScanner.isFlashEnabled = false // Whether to enable flash or not
// Callbacks
codeScanner.decodeCallback = DecodeCallback {
runOnUiThread {
Toast.makeText(this, "Scan result: ${it.text}", Toast.LENGTH_LONG).show()
}
}
codeScanner.errorCallback = ErrorCallback { // or ErrorCallback.SUPPRESS
runOnUiThread {
Toast.makeText(this, "Camera initialization error: ${it.message}",
Toast.LENGTH_LONG).show()
}
}
scannerView.setOnClickListener {
codeScanner.startPreview()
}
}
override fun onResume() {
super.onResume()
codeScanner.startPreview()
}
override fun onPause() {
codeScanner.releaseResources()
super.onPause()
}
}
```
Java
```java
public class MainActivity extends AppCompatActivity {
private CodeScanner mCodeScanner;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
CodeScannerView scannerView = findViewById(R.id.scanner_view);
mCodeScanner = new CodeScanner(this, scannerView);
mCodeScanner.setDecodeCallback(new DecodeCallback() {
@Override
public void onDecoded(@NonNull final Result result) {
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(MainActivity.this, result.getText(), Toast.LENGTH_SHORT).show();
}
});
}
});
scannerView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
mCodeScanner.startPreview();
}
});
}
@Override
protected void onResume() {
super.onResume();
mCodeScanner.startPreview();
}
@Override
protected void onPause() {
mCodeScanner.releaseResources();
super.onPause();
}
}
```
or fragment:
Kotlin
```kotlin
class MainFragment : Fragment() {
private lateinit var codeScanner: CodeScanner
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?): View? {
return inflater.inflate(R.layout.fragment_main, container, false)
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
val scannerView = view.findViewById(R.id.scanner_view)
val activity = requireActivity()
codeScanner = CodeScanner(activity, scannerView)
codeScanner.decodeCallback = DecodeCallback {
activity.runOnUiThread {
Toast.makeText(activity, it.text, Toast.LENGTH_LONG).show()
}
}
scannerView.setOnClickListener {
codeScanner.startPreview()
}
}
override fun onResume() {
super.onResume()
codeScanner.startPreview()
}
override fun onPause() {
codeScanner.releaseResources()
super.onPause()
}
}
```
Java
```java
public class MainFragment extends Fragment {
private CodeScanner mCodeScanner;
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
@Nullable Bundle savedInstanceState) {
final Activity activity = getActivity();
View root = inflater.inflate(R.layout.fragment_main, container, false);
CodeScannerView scannerView = root.findViewById(R.id.scanner_view);
mCodeScanner = new CodeScanner(activity, scannerView);
mCodeScanner.setDecodeCallback(new DecodeCallback() {
@Override
public void onDecoded(@NonNull final Result result) {
activity.runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(activity, result.getText(), Toast.LENGTH_SHORT).show();
}
});
}
});
scannerView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
mCodeScanner.startPreview();
}
});
return root;
}
@Override
public void onResume() {
super.onResume();
mCodeScanner.startPreview();
}
@Override
public void onPause() {
mCodeScanner.releaseResources();
super.onPause();
}
}
```
### Preview
