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package example.zxing;
import android.app.Activity;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.support.v7.widget.Toolbar;
import android.view.KeyEvent;
import android.view.View;
import android.widget.Button;
import com.journeyapps.barcodescanner.CaptureManager;
import com.journeyapps.barcodescanner.CompoundBarcodeView;
/**
* Custom Scannner Activity extending from Activity to display a custom layout form scanner view.
*/
public class CustomScannerActivity extends Activity implements
CompoundBarcodeView.FlashlightListener {
private CaptureManager capture;
private CompoundBarcodeView barcodeScannerView;
private Button switchFlashlightButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_custom_scanner);
barcodeScannerView = (CompoundBarcodeView)findViewById(R.id.zxing_barcode_scanner);
barcodeScannerView.setFlashLightListener(this);
switchFlashlightButton = (Button)findViewById(R.id.switch_flashlight);
// if the device does not have flashlight in its camera,
// then remove the switch flashlight button...
if (!hasFlash()) {
switchFlashlightButton.setVisibility(View.GONE);
}
capture = new CaptureManager(this, barcodeScannerView);
capture.initializeFromIntent(getIntent(), savedInstanceState);
capture.decode();
}
@Override
protected void onResume() {
super.onResume();
capture.onResume();
}
@Override
protected void onPause() {
super.onPause();
capture.onPause();
}
@Override
protected void onDestroy() {
super.onDestroy();
capture.onDestroy();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
capture.onSaveInstanceState(outState);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
return barcodeScannerView.onKeyDown(keyCode, event) || super.onKeyDown(keyCode, event);
}
/**
* Check if the device's camera has a Flashlight.
* @return true if there is Flashlight, otherwise false.
*/
private boolean hasFlash() {
return getApplicationContext().getPackageManager()
.hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH);
}
public void switchFlashlight(View view) {
if (getString(R.string.turn_on_flashlight).equals(switchFlashlightButton.getText())) {
barcodeScannerView.turnOnFlashLight();
} else {
barcodeScannerView.turnOffFlashLight();
}
}
@Override
public void onFlashlightTurnOn() {
switchFlashlightButton.setText(R.string.turn_off_flashlight);
}
@Override
public void onFlashlightTurnOff() {
switchFlashlightButton.setText(R.string.turn_on_flashlight);
}
}
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