Work on Data Transfer

app/src/main/java/com/astatin3/scoutingapp2025/ui/TBA/TBAFragment.java

@@ -61,8 +61,8 @@ public class TBAFragment extends Fragment {
 
     public View onCreateView(@NonNull LayoutInflater inflater,
                              ViewGroup container, Bundle savedInstanceState) {
-        TBAViewModel dashboardViewModel =
-                new ViewModelProvider(this).get(TBAViewModel.class);
+//        TBAViewModel dashboardViewModel =
+//                new ViewModelProvider(this).get(TBAViewModel.class);
 
         binding = FragmentTbaBinding.inflate(inflater, container, false);
         View root = binding.getRoot();

app/src/main/java/com/astatin3/scoutingapp2025/ui/TBA/TBAViewModel.java

@@ -1,20 +0,0 @@
-package com.astatin3.scoutingapp2025.ui.TBA;
-
-import androidx.lifecycle.LiveData;
-import androidx.lifecycle.MutableLiveData;
-import androidx.lifecycle.ViewModel;
-
-public class TBAViewModel extends ViewModel {
-
-    private final MutableLiveData<String> mText;
-
-    public TBAViewModel() {
-        mText = new MutableLiveData<>();
-        mText.setValue("This is dashboard fragment");
-
-    }
-
-    public LiveData<String> getText() {
-        return mText;
-    }
-}

app/src/main/java/com/astatin3/scoutingapp2025/ui/home/HomeFragment.java

@@ -1,38 +1,202 @@
 package com.astatin3.scoutingapp2025.ui.home;
 
+import android.app.AlertDialog;
+import android.graphics.Bitmap;
+import android.graphics.Color;
 import android.os.Bundle;
+import android.os.CountDownTimer;
+import android.os.Handler;
 import android.view.LayoutInflater;
+
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.TextView;
+import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.SeekBar;
 
-import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.fragment.app.Fragment;
-import androidx.lifecycle.ViewModelProvider;
 
 import com.astatin3.scoutingapp2025.databinding.FragmentHomeBinding;
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.EncodeHintType;
+import com.google.zxing.WriterException;
+import com.google.zxing.common.BitMatrix;
+import com.google.zxing.qrcode.QRCodeWriter;
+import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
+
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.EnumMap;
+import java.util.Map;
+
 
 public class HomeFragment extends Fragment {
 
     private FragmentHomeBinding binding;
 
-    public View onCreateView(@NonNull LayoutInflater inflater,
-                             ViewGroup container, Bundle savedInstanceState) {
-        HomeViewModel homeViewModel =
-                new ViewModelProvider(this).get(HomeViewModel.class);
+    private final int maxQrCount = 256; //The max number that can be stored in a byte
+
+    private final int maxQrSpeed = 20;
+    private final int minQrSpeed = 300;
+
+    private int minQrSize = 0;
+    private final int maxQrSize = 600;
+    private int qrSize = 100;
+
+
+    private int curCodeIndex = 0;
+    private int qrDelay = 100;
+    private int qrIndex = 0;
+    private int qrCount = 0;
+
+    private ArrayList<Bitmap> qrBitmaps = new ArrayList<Bitmap>();
+
+    private void alert(String title, String content) {
+        AlertDialog.Builder alert = new AlertDialog.Builder(getContext());
+        alert.setMessage(content);
+        alert.setTitle(title);
+        alert.setPositiveButton("OK", null);
+        alert.setCancelable(true);
+        alert.create().show();
+    }
+
+    public static Bitmap generateQrCode(String myCodeText) throws WriterException {
+//        Hashtable<EncodeHintType, ErrorCorrectionLevel> hintMap = new Hashtable<EncodeHintType, ErrorCorrectionLevel>();
+
+        QRCodeWriter qrCodeWriter = new QRCodeWriter();
+
+        Map<EncodeHintType, Object> hints = new EnumMap<EncodeHintType, Object>(EncodeHintType.class);
+        hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
+        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L); // H = 30% damage
+        hints.put(EncodeHintType.MARGIN, 0); /* default = 4 */
+
+        int size = 200;
+
+        BitMatrix bitMatrix = qrCodeWriter.encode(myCodeText, BarcodeFormat.QR_CODE, size, size, hints);
+
+        int width = bitMatrix.getWidth();
+        int height = bitMatrix.getHeight();
+
+        int[] pixels = new int[width * height];
+        for (int y = 0; y < height; y++) {
+            int offset = y * width;
+            for (int x = 0; x < width; x++) {
+               pixels[offset + x] = bitMatrix.get(x, y) ? Color.BLACK : Color.WHITE;
+            }
+        }
+
+        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
+        bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
+
+        return bitmap;
+    }
+
+
+    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
 
         binding = FragmentHomeBinding.inflate(inflater, container, false);
         View root = binding.getRoot();
 
-        final TextView textView = binding.textHome;
-        homeViewModel.getText().observe(getViewLifecycleOwner(), textView::setText);
+        binding.qrSpeedSlider.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+            @Override
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+//                qrDelay = progress + minQrSpeed;
+            }
+            @Override
+            public void onStartTrackingTouch(SeekBar seekBar) {}
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {}
+        });
+
+        binding.qrSpeedSlider.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
+            @Override
+            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
+                qrDelay = maxQrSpeed - progress + 1;
+            }
+            @Override
+            public void onStartTrackingTouch(SeekBar seekBar) {}
+            @Override
+            public void onStopTrackingTouch(SeekBar seekBar) {}
+        });
+
+        sendData("Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, DisestablishmenjAWHRJGQWEhugQWHKJEtarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism, Disestablishmentarianism");
 
         return root;
     }
 
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        binding = null;
+    private void getQr(int index){
+        byte[] bytes = ByteBuffer.allocate(1).putInt(index).array();
+//        new byte;
     }
+
+    private void sendData(String data){
+        minQrSize = Math.round(data.length()/maxQrCount);
+
+        binding.qrSizeSlider.setMax(maxQrSize);
+        binding.qrSpeedSlider.setMax(maxQrSpeed-minQrSpeed);
+
+        binding.qrSizeSlider.setProgress(qrSize-minQrSize);
+        binding.qrSpeedSlider.setProgress(qrDelay-minQrSpeed);
+
+        qrCount = (data.length()/qrSize);
+
+//        alert("ee", ""+ qrDelay + "\n" + minQrSpeed);
+
+        for(int i=0;i<=(data.length()/qrSize);i++){
+            final int start = i*qrSize;
+            int end = (i+1)*qrSize;
+            if(end > data.length()){
+                end = data.length()-1;
+            }
+//            alertstr += "\n" + start + ", " + end;
+            try {
+                qrBitmaps.add(generateQrCode(
+                    data.substring(start, end)
+                ));
+            }catch (WriterException e){
+                e.printStackTrace();
+            }
+        }
+        qrIndex = 0;
+        qrLoop();
+    }
+
+    private void updateQr(){
+//        alert("qr", ""+qrIndex);
+        binding.qrImage.setImageBitmap(qrBitmaps.get(qrIndex));
+        this.qrIndex += 1;
+        if(this.qrIndex >= this.qrCount+1){
+            this.qrIndex = 0;
+        }
+    }
+
+    private void qrLoop(){
+        new CountDownTimer(qrDelay, 1000) {
+            public void onTick(long millisUntilFinished) {}
+            public void onFinish() {
+                updateQr();
+                qrLoop();
+            }
+        }.start();
+
+
+    }
+
+//    private void setQR(int curIndex){
+//        binding.qrImage.setImageBitmap(qrBitmaps.get(curIndex));
+//        final Handler handler = new Handler();
+//        handler.postDelayed(new Runnable() {
+//            @Override
+//            public void run() {
+//                if(qrIndex+1 > qrCount){
+//                    qrIndex = 0;
+//                }
+//                setQR(curIndex+1);
+//            }
+//        }, qrDelay);
+//
+//
+//    }
 }

app/src/main/java/com/astatin3/scoutingapp2025/ui/home/HomeViewModel.java

@@ -1,19 +0,0 @@
-package com.astatin3.scoutingapp2025.ui.home;
-
-import androidx.lifecycle.LiveData;
-import androidx.lifecycle.MutableLiveData;
-import androidx.lifecycle.ViewModel;
-
-public class HomeViewModel extends ViewModel {
-
-    private final MutableLiveData<String> mText;
-
-    public HomeViewModel() {
-        mText = new MutableLiveData<>();
-        mText.setValue("Testttt");
-    }
-
-    public LiveData<String> getText() {
-        return mText;
-    }
-}

app/src/main/java/com/astatin3/scoutingapp2025/ui/notifications/NotificationsFragment.java

@@ -1,37 +1,58 @@
 package com.astatin3.scoutingapp2025.ui.notifications;
 
+import android.app.Activity;
+import android.app.AlertDialog;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.TextView;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.fragment.app.Fragment;
-import androidx.lifecycle.ViewModelProvider;
 
-import com.astatin3.scoutingapp2025.databinding.FragmentNotificationsBinding;
+import com.astatin3.scoutingapp2025.R;
+import com.budiyev.android.codescanner.CodeScanner;
+import com.budiyev.android.codescanner.CodeScannerView;
+import com.budiyev.android.codescanner.DecodeCallback;
+import com.budiyev.android.codescanner.ScanMode;
+import com.google.zxing.Result;
 
 public class NotificationsFragment extends Fragment {
+    private CodeScanner mCodeScanner;
 
-    private FragmentNotificationsBinding binding;
 
-    public View onCreateView(@NonNull LayoutInflater inflater,
-                             ViewGroup container, Bundle savedInstanceState) {
-        NotificationsViewModel notificationsViewModel =
-                new ViewModelProvider(this).get(NotificationsViewModel.class);
+    private void alert(String title, String content) {
+        AlertDialog.Builder alert = new AlertDialog.Builder(getContext());
+        alert.setMessage(content);
+        alert.setTitle(title);
+        alert.setPositiveButton("OK", null);
+        alert.setCancelable(true);
+        alert.create().show();
+    }
 
-        binding = FragmentNotificationsBinding.inflate(inflater, container, false);
-        View root = binding.getRoot();
+    @Nullable
+    @Override
+    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        final Activity activity = getActivity();
+        View root = inflater.inflate(R.layout.fragment_notifications, container, false);
 
-        final TextView textView = binding.textNotifications;
-        notificationsViewModel.getText().observe(getViewLifecycleOwner(), textView::setText);
+        CodeScannerView scannerView = root.findViewById(R.id.scanner_view);
+        mCodeScanner = new CodeScanner(activity, scannerView);
+        mCodeScanner.setScanMode(ScanMode.CONTINUOUS);
+        mCodeScanner.setDecodeCallback(new DecodeCallback() {
+            @Override
+            public void onDecoded(@NonNull final Result result) {
+                activity.runOnUiThread(new Runnable() {
+                    @Override
+                    public void run() {
+                        alert("QR", result.getText());
+                    }
+                });
+            }
+        });
+        mCodeScanner.startPreview();
         return root;
     }
-
-    @Override
-    public void onDestroyView() {
-        super.onDestroyView();
-        binding = null;
-    }
 }

app/src/main/java/com/astatin3/scoutingapp2025/ui/notifications/NotificationsViewModel.java

@@ -1,20 +0,0 @@
-package com.astatin3.scoutingapp2025.ui.notifications;
-
-import androidx.lifecycle.LiveData;
-import androidx.lifecycle.MutableLiveData;
-import androidx.lifecycle.ViewModel;
-
-public class NotificationsViewModel extends ViewModel {
-
-    private final MutableLiveData<String> mText;
-
-    public NotificationsViewModel() {
-        mText = new MutableLiveData<>();
-        mText.setValue("This is notifications fragment");
-    }
-
-
-    public LiveData<String> getText() {
-        return mText;
-    }
-}