Updated project with barcodeView rather than using an intent.

app/src/main/AndroidManifest.xml

@@ -25,6 +25,7 @@
             android:theme="@style/zxing_CaptureTheme"
             android:windowSoftInputMode="stateAlwaysHidden"
             tools:replace="android:screenOrientation" />
+
     </application>
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />

app/src/main/java/com/nophp/attendancescanner/MainActivity.java

@@ -7,83 +7,127 @@ import android.support.annotation.Nullable;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 import android.util.Log;
+import android.view.LayoutInflater;
 import android.view.View;
+import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.Toast;
 
+import com.google.zxing.Result;
+import com.google.zxing.ResultPoint;
 import com.google.zxing.client.android.BeepManager;
 import com.google.zxing.integration.android.IntentIntegrator;
 import com.google.zxing.integration.android.IntentResult;
+import com.journeyapps.barcodescanner.BarcodeCallback;
+import com.journeyapps.barcodescanner.BarcodeResult;
+import com.journeyapps.barcodescanner.BarcodeView;
+import com.journeyapps.barcodescanner.CaptureManager;
+import com.journeyapps.barcodescanner.DecoratedBarcodeView;
+import com.journeyapps.barcodescanner.camera.CameraSettings;
 
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.nio.charset.StandardCharsets;
+import java.util.List;
 import java.util.Scanner;
 
 public class MainActivity extends AppCompatActivity
 {
-    private Button scanner;
+
     public BeepManager beep;
+    public static android.support.v4.app.FragmentManager fragman;
+    private DecoratedBarcodeView barcodeView = null;
+    CaptureManager capture;
 
     @Override
     protected void onCreate(Bundle savedInstanceState)
     {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+        barcodeView = (DecoratedBarcodeView) findViewById(R.id.barcode_scanner);
+        barcodeView.getViewFinder().setVisibility(View.VISIBLE);
+        barcodeView.setStatusText("");
+        barcodeView.getBarcodeView();
 
+        BarcodeCallback callback = new BarcodeCallback()
+        {
+            @Override
+            public void barcodeResult(BarcodeResult result)
+            {
+                if (result.getText() != null) {
+                    scanner(result);
+                }
+            }
+
+            @Override
+            public void possibleResultPoints(List<ResultPoint> resultPoints)
+            {
+
+            }
+        };
+
+        barcodeView.decodeContinuous(callback);
+
+        //setContentView(barcodeView);
         if (android.os.Build.VERSION.SDK_INT > 9)
         {
             StrictMode.ThreadPolicy policy = new
                     StrictMode.ThreadPolicy.Builder().permitAll().build();
             StrictMode.setThreadPolicy(policy);
         }
+    }
 
-        scanner = (Button) findViewById(R.id.scan);
-        scanner.setOnClickListener(new View.OnClickListener()
-        {
-            @Override
-            public void onClick(View view) {
-                scan();
-            }
-        });
-        scan();
+    @Override
+    protected void onResume() {
+        super.onResume();
+        barcodeView.resume();
     }
 
     @Override
-    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data)
+    protected void onPause() {
+        super.onPause();
+        barcodeView.pause();
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        capture.onDestroy();
+    }
+
+
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        Log.d("onSaveInstanceState", "onSaveInstanceState: .");
+        super.onSaveInstanceState(outState);
+        capture.onSaveInstanceState(outState);
+    }
+
+    protected void scanner(BarcodeResult result)
     {
-        beep = new BeepManager(this);
-        IntentResult result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
-        String resultString = result.getContents();
-        if (resultString != null)
+        if (result != null)
         {
-            if (result.getContents() == null)
+            if (result.getText() == null)
             {
                 Toast.makeText(this, "Scanning Cancelled", Toast.LENGTH_LONG).show();
-
             }
             else
             {
-                String text = "https://ziemni.me/rwp/scanner.php?qr=" + result.getContents();
+                String text = "https://ziemni.me/rwp/scanner.php?qr=" + result.getText();
                 System.out.println(text);
 
                 String textReturn = readWeb(text.toLowerCase());
-                if (errorCheck(textReturn) == "Success!")
+                String errorCheckedText = errorCheck(textReturn);
+                if (errorCheckedText == "Success!")
                 {
-                    beep.playBeepSound();
+                    //beep.playBeepSound();
                 }
-                Toast.makeText(this, errorCheck(textReturn), Toast.LENGTH_LONG).show();
-
-                scan();
+                Toast.makeText(this, errorCheckedText, Toast.LENGTH_LONG).show();
             }
         }
-        else
-            {
-            super.onActivityResult(requestCode, resultCode, data);
-        }
     }
 
     public String errorCheck(String hashed)
@@ -133,19 +177,6 @@ public class MainActivity extends AppCompatActivity
         return toastMessage;
     }
 
-    public void scan()
-    {
-        final Activity activity = this;
-        IntentIntegrator integrator = new IntentIntegrator(activity);
-        integrator.setDesiredBarcodeFormats(IntentIntegrator.QR_CODE);
-        integrator.setPrompt("");
-        integrator.setCameraId(0);
-        integrator.setBeepEnabled(false);
-        integrator.setBarcodeImageEnabled(false);
-        integrator.setOrientationLocked(false);
-        integrator.initiateScan();
-    }
-
     public String readWeb(String text)
     {
         try (Scanner scanner = new Scanner(new URL(text).openStream(), StandardCharsets.UTF_8.toString()))

app/src/main/res/layout/activity_main.xml

@@ -5,18 +5,31 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
-    android:gravity="center"
-    tools:context=".MainActivity">
+    android:gravity="center">
 
     <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="QR Scanner" />
+        android:id="@+id/room"
+        android:layout_width="match_parent"
+        android:layout_height="84dp"
+        android:text="RoomID" />
+
+    <com.journeyapps.barcodescanner.DecoratedBarcodeView
+        android:id="@+id/barcode_scanner"
+        android:text=""
+        android:layout_width="match_parent"
+        android:layout_height="327dp">
+
+    </com.journeyapps.barcodescanner.DecoratedBarcodeView>
 
-    <Button
-        android:id="@+id/scan"
+    <android.widget.TextClock
+        android:id="@+id/digitalClock"
         android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="SCAN"/>
+        android:layout_height="84dp"
+        android:layout_alignParentEnd="true"
+        android:format12Hour="@null"
+        android:format24Hour="k:mm:ss"
+        android:textSize="48dp"
+        android:textStyle="bold"
+        android:timeZone="GMT+0000" />
 
 </LinearLayout>

app/src/main/res/values/styles.xml

@@ -1,7 +1,7 @@
 <resources>
 
     <!-- Base application theme. -->
-    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
         <!-- Customize your theme here. -->
         <item name="colorPrimary">@color/colorPrimary</item>
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>