Fix code scanning sliders and remove asynctask

app/src/main/java/com/ridgebotics/ridgescout/ui/transfer/TBAEventFragment.java

@@ -49,8 +49,6 @@ public class TBAEventFragment extends Fragment {
 
     private final int year = SettingsManager.getYearNum();
 
-    private ProgressDialog loadingDialog;
-
     private static JSONObject eventData = null;
     public static void setEventData(JSONObject j){
         eventData = j;
@@ -74,7 +72,7 @@ public class TBAEventFragment extends Fragment {
 
         Table.setStretchAllColumns(true);
 
-        startLoading("Loading Teams and Matches...");
+        AlertManager.startLoading("Loading Teams and Matches...");
         Table.removeAllViews();
         Table.setStretchAllColumns(true);
         Table.bringToFront();
@@ -92,7 +90,7 @@ public class TBAEventFragment extends Fragment {
             final RequestTask rq1 = new RequestTask();
             rq1.onResult(matchesStr -> {
                 matchTable(matchesStr, teamsStr, eventData);
-                stopLoading();
+                AlertManager.stopLoading();
                 return null;
             });
             rq1.execute((TBAAddress + "event/" + matchKey + "/matches"), TBAHeader);
@@ -375,12 +373,12 @@ public class TBAEventFragment extends Fragment {
 
         }catch (JSONException j){
             AlertManager.error("Failed Downloading", j);
-            stopLoading();
+            AlertManager.stopLoading();
         }
     }
 
     private boolean saveData(ArrayList<frcMatch> matchData, JSONArray teamData, JSONObject eventData){
-        startLoading("Saving data...");
+        AlertManager.startLoading("Saving data...");
 
         Thread t = new Thread(() -> {
             try {
@@ -431,31 +429,15 @@ public class TBAEventFragment extends Fragment {
                 AlertManager.toast("Saved!");
 
                 getActivity().runOnUiThread(() -> findNavController(this).navigate(R.id.action_navigation_tba_event_to_navigation_transfer));
-                stopLoading();
+                AlertManager.stopLoading();
 
             }catch(Exception j) {
                 AlertManager.error(j);
-                stopLoading();
+                AlertManager.stopLoading();
             }
         });
         t.start();
 
         return false;
     }
-
-    private void startLoading(String title){
-        getActivity().runOnUiThread(() -> {
-            if(loadingDialog != null && loadingDialog.isShowing())
-                loadingDialog.dismiss();
-            loadingDialog = ProgressDialog.show(getActivity(), title, "Please wait...");
-        });
-    }
-
-    private void stopLoading(){
-        getActivity().runOnUiThread(() -> {
-            if (loadingDialog != null)
-                loadingDialog.cancel();
-            loadingDialog = null;
-        });
-    }
 }

app/src/main/java/com/ridgebotics/ridgescout/ui/transfer/codes/CodeGenTask.java

@@ -0,0 +1,129 @@
+package com.ridgebotics.ridgescout.ui.transfer.codes;
+
+import android.graphics.Bitmap;
+import android.graphics.Color;
+import android.os.AsyncTask;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.EncodeHintType;
+import com.google.zxing.MultiFormatWriter;
+import com.google.zxing.WriterException;
+import com.google.zxing.common.BitMatrix;
+import com.ridgebotics.ridgescout.utility.AlertManager;
+import com.ridgebotics.ridgescout.utility.FileEditor;
+import com.ridgebotics.ridgescout.utility.TaskRunner;
+
+import java.util.ArrayList;
+import java.util.EnumMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.Callable;
+import java.util.function.Function;
+
+public class CodeGenTask implements Callable<List<Bitmap>> {
+//    private Function<List<Bitmap>, String> resultFunction = null;
+//
+//    @Override
+//    protected List<Bitmap> doInBackground(String... strings) {
+//
+
+//
+//        return new ArrayList<>();
+//    }
+//
+//
+//    public void onResult(Function<List<Bitmap>, String> func) {
+//        this.resultFunction = func;
+//    }
+//
+//
+//    @Override
+//    protected void onPostExecute(List<Bitmap> result) {
+//        super.onPostExecute(result);
+//        if(resultFunction != null){
+//            resultFunction.apply(result);
+//        }
+//    }
+
+    private final String data;
+    private final int randID;
+    private final int qrSize;
+    private final int qrCount;
+
+    public CodeGenTask(String data, int randID, int qrSize, int qrCount) {
+        this.data = data;
+        this.randID = randID;
+        this.qrSize = qrSize;
+        this.qrCount = qrCount;
+    }
+
+    @Override
+    public List<Bitmap> call() {
+        List<Bitmap> qrBitmaps = new ArrayList<>();
+
+        for(int i=0;i<=((data.length()+1)/qrSize);i++){
+            final int start = i*qrSize;
+            int end = (i+1)*qrSize;
+            if(end >= data.length()){
+                end = data.length();
+            }
+            try {
+//                alert("test", ""+Math.ceil((double)data.length()/(double)qrSize));
+                qrBitmaps.add(generateQrCode(
+                        FileEditor.byteToChar(FileEditor.internalDataVersion, FileEditor.lengthHeaderBytes) +
+                                String.valueOf(FileEditor.byteToChar(randID, FileEditor.lengthHeaderBytes)) +
+                                FileEditor.byteToChar(i, FileEditor.lengthHeaderBytes) +
+                                FileEditor.byteToChar(qrCount - 1, FileEditor.lengthHeaderBytes) +
+                                data.substring(start, end)
+                ));
+//                alert("title", ""+(qrCount-1));
+            }catch (WriterException e){
+                AlertManager.error(e);
+            }
+        }
+
+        return qrBitmaps;
+    }
+
+    private Bitmap generateQrCode(String contents) throws WriterException {
+
+        final int size = 512;
+
+        if (contents == null) {
+            return null;
+        }
+
+        Map<EncodeHintType, Object> hints = new EnumMap<>(EncodeHintType.class);
+
+        // The Charset must be UTF-8, Or data will not be transferred properly. IDK why.
+        hints.put(EncodeHintType.CHARACTER_SET, "ISO-8859-1");
+//        hints.put(EncodeHintType.);
+        hints.put(EncodeHintType.MARGIN, 0); /* default = 4 */
+        MultiFormatWriter writer = new MultiFormatWriter();
+
+        BitMatrix result;
+        try {
+            result = writer.encode(contents, BarcodeFormat.DATA_MATRIX, size, size, hints);
+        } catch (IllegalArgumentException e) {
+            // Unsupported format
+            AlertManager.error(e);
+            return null;
+        }
+
+        int width = result.getWidth();
+        int height = result.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] = result.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;
+    }
+}

app/src/main/java/com/ridgebotics/ridgescout/ui/transfer/codes/CodeGeneratorView.java

@@ -4,6 +4,7 @@ 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;
@@ -23,10 +24,12 @@ import com.google.zxing.EncodeHintType;
 import com.google.zxing.MultiFormatWriter;
 import com.google.zxing.WriterException;
 import com.google.zxing.common.BitMatrix;
+import com.ridgebotics.ridgescout.utility.TaskRunner;
 
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.EnumMap;
+import java.util.List;
 import java.util.Map;
 import java.util.Random;
 
@@ -38,23 +41,27 @@ public class CodeGeneratorView extends Fragment {
     private TextView qrIndexN;
     private TextView qrIndexD;
 
-    private final int maxQrCount = 256; //The max number that can be stored in a byte
+    private static final int maxQrCount = 256; //The max number that can be stored in a byte
+
+    private static final int maxQrSize = 800;
+
+
+    private static final int maxQrSpeed = 50;
+    private static final int minQrSpeed = 1000;
+    private static final int defaultQrDelay = 12;
+
 
-    private final int maxQrSpeed = 5;
-    private final int minQrSpeed = 300 + maxQrSpeed - 1;
 
     private int minQrSize = 0;
-    private final int maxQrSize = 800;
     private int qrSize = 200;
 
-    private final int defaultQrDelay = 419;
-    private int qrDelay = 0;
+    private double qrDelay = 0;
     private int qrIndex = 0;
 
     private CountDownTimer timer;
     private int qrCount = 0;
 
-    private ArrayList<Bitmap> qrBitmaps;
+    private List<Bitmap> qrBitmaps = new ArrayList<>();
 
     private FragmentTransferCodeSenderBinding binding;
 
@@ -85,75 +92,29 @@ public class CodeGeneratorView extends Fragment {
         }
 
         minQrSize = Math.round((float)compressed.length() / maxQrCount)+1;
-
-        qrSizeSlider.setMax(maxQrSize-minQrSize);
-        qrSpeedSlider.setMax((minQrSpeed-maxQrSpeed)*2);
-
-        qrSizeSlider.setProgress(minQrSize+qrSize);
-        qrSpeedSlider.setProgress(defaultQrDelay+5);
+        qrSize += minQrSize;
 
         sendData(compressed);
 
+        qrSpeedSlider.setMax(maxQrSpeed*2);
+        qrSpeedSlider.setProgress(maxQrSpeed + defaultQrDelay);
+
+        qrSizeSlider.setMax(maxQrSize-minQrSize);
+        qrSizeSlider.setProgress(qrSize-minQrSize);
+
+        startLoop();
+
         return binding.getRoot();
     }
 
-
-    private Bitmap generateQrCode(String contents) throws WriterException {
-
-        final int size = 512;
-
-        if (contents == null) {
-            return null;
-        }
-
-        Map<EncodeHintType, Object> hints = new EnumMap<>(EncodeHintType.class);
-
-        // The Charset must be UTF-8, Or data will not be transferred properly. IDK why.
-        hints.put(EncodeHintType.CHARACTER_SET, "ISO-8859-1");
-//        hints.put(EncodeHintType.);
-        hints.put(EncodeHintType.MARGIN, 0); /* default = 4 */
-        MultiFormatWriter writer = new MultiFormatWriter();
-
-        BitMatrix result;
-        try {
-            result = writer.encode(contents, BarcodeFormat.DATA_MATRIX, size, size, hints);
-        } catch (IllegalArgumentException e) {
-            // Unsupported format
-            AlertManager.error(e);
-            return null;
-        }
-
-        int width = result.getWidth();
-        int height = result.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] = result.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;
-    }
-
-
     private void sendData(String data){
-
-
-
         qrCount = (data.length()/qrSize)+1;
         qrIndexD.setText(String.valueOf(qrCount));
 
-//        alert("size", ""+binding.qrSizeSlider.getProgress()+"\n"+binding.qrSizeSlider.getMax());
-
         qrSpeedSlider.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
             @Override
             public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
-                qrDelay = -(minQrSpeed - progress - maxQrSpeed + 1);
+                qrDelay = ((double) progress /maxQrSpeed) - 1;
             }
             @Override
             public void onStartTrackingTouch(SeekBar seekBar) {}
@@ -176,40 +137,20 @@ public class CodeGeneratorView extends Fragment {
             }
         });
 
-//        qrSizeSlider.setProgress(qr);
+        AlertManager.startLoading("Generating codes...");
 
-        qrBitmaps = new ArrayList<>();
+        new TaskRunner().executeAsync(new CodeGenTask(data, new Random().nextInt(255), qrSize, qrCount), result -> {
+            qrBitmaps = result;
+            AlertManager.stopLoading();
+            qrIndex = 0;
+        });
 
-        int randID = new Random().nextInt(255);
-
-        for(int i=0;i<=((data.length()+1)/qrSize);i++){
-            final int start = i*qrSize;
-            int end = (i+1)*qrSize;
-            if(end >= data.length()){
-                end = data.length();
-            }
-            try {
-//                alert("test", ""+Math.ceil((double)data.length()/(double)qrSize));
-                qrBitmaps.add(generateQrCode(
-                    FileEditor.byteToChar(FileEditor.internalDataVersion, FileEditor.lengthHeaderBytes) +
-                                String.valueOf(FileEditor.byteToChar(randID, FileEditor.lengthHeaderBytes)) +
-                                FileEditor.byteToChar(i, FileEditor.lengthHeaderBytes) +
-                                FileEditor.byteToChar(qrCount - 1, FileEditor.lengthHeaderBytes) +
-                                data.substring(start, end)
-                ));
-//                alert("title", ""+(qrCount-1));
-            }catch (WriterException e){
-                AlertManager.error(e);
-            }
-        }
-        qrIndex = 0;
-        if(timer != null){
-            timer.cancel();
-        }
-        qrLoop();
     }
 
     private void updateQr(){
+        if(qrBitmaps.isEmpty())
+            return;
+
         qrImage.setImageBitmap(qrBitmaps.get(qrIndex));
         if(qrDelay > 0) {
             this.qrIndex += 1;
@@ -226,13 +167,28 @@ public class CodeGeneratorView extends Fragment {
         qrIndexN.setText(String.valueOf(qrIndex+1));
     }
 
-    private void qrLoop(){
-        timer = new CountDownTimer(minQrSpeed-Math.abs(qrDelay)+1, 1000) {
-            public void onTick(long millisUntilFinished) {}
-            public void onFinish() {
-                updateQr();
-                qrLoop();
+    private void startLoop() {
+
+
+        final Handler handler = new Handler();
+        Runnable runnable = new Runnable() {
+
+            @Override
+            public void run() {
+                try{
+                    updateQr();
+                }
+                catch (Exception e) {
+                    AlertManager.error(e);
+                }
+                finally{
+                    double a = ((double) maxQrSpeed) / (Math.abs(qrDelay));
+                    a = Math.min(Math.max(a, maxQrSpeed), minQrSpeed);
+                    handler.postDelayed(this, (long) a);
+                }
             }
-        }.start();
+        };
+
+        handler.post(runnable);
     }
 }

app/src/main/java/com/ridgebotics/ridgescout/ui/transfer/codes/CodeOverlayView.java

@@ -65,7 +65,7 @@ public class CodeOverlayView extends View {
                 }
             }
             if(barColors != null){
-                final double width = getWidth()/barColors.length;
+                final double width = (double) getWidth() /barColors.length;
 
                 final int top = 0;
                 final int bottom = barHeight;

app/src/main/java/com/ridgebotics/ridgescout/utility/AlertManager.java

@@ -3,6 +3,7 @@ package com.ridgebotics.ridgescout.utility;
 import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.app.AlertDialog;
+import android.app.ProgressDialog;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.widget.Toast;
@@ -113,4 +114,22 @@ public class AlertManager {
         });
     }
 
+    private static ProgressDialog loadingDialog;
+
+    public static void startLoading(String title){
+        ((Activity) context).runOnUiThread(() -> {
+            if(loadingDialog != null && loadingDialog.isShowing())
+                loadingDialog.dismiss();
+            loadingDialog = ProgressDialog.show(context, title, "Please wait...");
+        });
+    }
+
+    public static void stopLoading(){
+        ((Activity) context).runOnUiThread(() -> {
+            if (loadingDialog != null)
+                loadingDialog.cancel();
+            loadingDialog = null;
+        });
+    }
+
 }

app/src/main/java/com/ridgebotics/ridgescout/utility/FileEditor.java

@@ -398,9 +398,10 @@ public final class FileEditor {
             Arrays.sort(filenames, (o1, o2) -> {
                 try {
                     if (!o1.contains("-") || !o2.contains("-"))
-                        return 0;
-                    return Integer.valueOf(o1.split("-")[1]).compareTo(Integer.valueOf(o2.split("-")[1]));
+                        return o2.compareTo(o1);
+                    return Integer.valueOf(o1.split("-")[1].split("\\.")[0]).compareTo(Integer.valueOf(o2.split("-")[1].split("\\.")[0]));
                 } catch (Exception e) {
+                    AlertManager.error(e);
                     return 0;
                 }
             });

app/src/main/java/com/ridgebotics/ridgescout/utility/TaskRunner.java

@@ -0,0 +1,32 @@
+package com.ridgebotics.ridgescout.utility;
+
+import android.os.Handler;
+import android.os.Looper;
+
+import java.util.concurrent.Callable;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+
+// https://stackoverflow.com/questions/58767733/the-asynctask-api-is-deprecated-in-android-11-what-are-the-alternatives
+public class TaskRunner {
+    private final Executor executor = Executors.newSingleThreadExecutor(); // change according to your requirements
+    private final Handler handler = new Handler(Looper.getMainLooper());
+
+    public interface Callback<R> {
+        void onComplete(R result);
+    }
+
+    public <R> void executeAsync(Callable<R> callable, Callback<R> callback) {
+        executor.execute(() -> {
+            final R result;
+            try {
+                result = callable.call();
+                handler.post(() -> {
+                    callback.onComplete(result);
+                });
+            } catch (Exception e) {
+                throw new RuntimeException(e);
+            }
+        });
+    }
+}