Use RecyclerView, Clean up code

.idea/deploymentTargetDropDown.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="deploymentTargetDropDown">
+    <runningDeviceTargetSelectedWithDropDown>
+      <Target>
+        <type value="RUNNING_DEVICE_TARGET" />
+        <deviceKey>
+          <Key>
+            <type value="VIRTUAL_DEVICE_PATH" />
+            <value value="$USER_HOME$/.android/avd/Pixel_2_API_21.avd" />
+          </Key>
+        </deviceKey>
+      </Target>
+    </runningDeviceTargetSelectedWithDropDown>
+    <targetSelectedWithDropDown>
+      <Target>
+        <type value="QUICK_BOOT_TARGET" />
+        <deviceKey>
+          <Key>
+            <type value="VIRTUAL_DEVICE_PATH" />
+            <value value="$USER_HOME$/.android/avd/Pixel_2_API_21.avd" />
+          </Key>
+        </deviceKey>
+      </Target>
+    </targetSelectedWithDropDown>
+    <timeTargetWasSelectedWithDropDown value="2023-06-23T13:56:20.858216724Z" />
+  </component>
+</project>

app/src/main/java/com/cringe_studios/cringe_authenticator/IntroActivity.java

@@ -1,22 +1,13 @@
 package com.cringe_studios.cringe_authenticator;
 
 import android.app.Activity;
-import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.media.MediaPlayer;
 import android.net.Uri;
 import android.os.Bundle;
-import android.os.Handler;
-import android.os.Looper;
-import android.util.AttributeSet;
-import android.view.LayoutInflater;
-import android.view.View;
 import android.view.ViewGroup;
-import android.widget.VideoView;
 
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
 import androidx.appcompat.app.AppCompatActivity;
 
 import com.cringe_studios.cringe_authenticator.databinding.ActivityIntroBinding;

app/src/main/java/com/cringe_studios/cringe_authenticator/MainActivity.java

@@ -29,7 +29,6 @@ import com.cringe_studios.cringe_authenticator.fragment.SettingsFragment;
 import com.cringe_studios.cringe_authenticator.scanner.QRScannerActivity;
 import com.cringe_studios.cringe_authenticator.scanner.QRScannerContract;
 import com.cringe_studios.cringe_authenticator.util.NavigationUtil;
-import com.cringe_studios.cringe_authenticator.util.SettingsUtil;
 
 import java.util.concurrent.Executor;
 
@@ -76,8 +75,7 @@ public class MainActivity extends AppCompatActivity {
             Fragment fragment = NavigationUtil.getCurrentFragment(this);
             if(fragment instanceof DynamicFragment) {
                 DynamicFragment frag = (DynamicFragment) fragment;
-                SettingsUtil.addOTP(getSharedPreferences(SettingsUtil.GROUPS_PREFS_NAME, MODE_PRIVATE), frag.getGroupName(), obj);
+                frag.addOTP(obj);
-                frag.loadOTPs();
             }
             Log.i("AMOGUS", "Actually got something bruh" + obj);
         });
@@ -148,10 +146,6 @@ public class MainActivity extends AppCompatActivity {
         NavigationUtil.navigate(this, SettingsFragment.class, null);
     }
 
-    public void addCode(MenuItem item) {
-        // TODO: add code
-    }
-
     public void scanCode(View view) {
         Log.i("AMOGUS", "Scan");
         Intent intent = new Intent(this, QRScannerActivity.class);

app/src/main/java/com/cringe_studios/cringe_authenticator/OTPData.java

@@ -1,10 +1,13 @@
 package com.cringe_studios.cringe_authenticator;
 
+import androidx.annotation.NonNull;
+
 import com.cringe_studios.cringe_authenticator_library.OTP;
 import com.cringe_studios.cringe_authenticator_library.OTPAlgorithm;
 import com.cringe_studios.cringe_authenticator_library.OTPType;
 
 import java.io.Serializable;
+import java.util.Objects;
 
 public class OTPData implements Serializable {
 
@@ -16,6 +19,9 @@ public class OTPData implements Serializable {
     private int period;
     private int counter;
 
+    // Cached
+    private OTP otp;
+
     public OTPData(String name, OTPType type, String secret, OTPAlgorithm algorithm, int digits, int period, int counter) {
         this.name = name;
         this.type = type;
@@ -56,9 +62,11 @@ public class OTPData implements Serializable {
 
     public OTP toOTP() {
         // TODO: checksum
-        return OTP.createNewOTP(type, secret, algorithm, digits, counter, period, false);
+        if(otp != null) return otp;
+        return otp = OTP.createNewOTP(type, secret, algorithm, digits, counter, period, false);
     }
 
+    @NonNull
     @Override
     public String toString() {
         return "OTPData{" +
@@ -71,4 +79,17 @@ public class OTPData implements Serializable {
                 ", counter=" + counter +
                 '}';
     }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        OTPData otpData = (OTPData) o;
+        return digits == otpData.digits && period == otpData.period && counter == otpData.counter && Objects.equals(name, otpData.name) && type == otpData.type && Objects.equals(secret, otpData.secret) && algorithm == otpData.algorithm;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name, type, secret, algorithm, digits, period, counter);
+    }
 }

app/src/main/java/com/cringe_studios/cringe_authenticator/fragment/DynamicFragment.java

@@ -5,7 +5,6 @@ import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
-import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -16,10 +15,10 @@ import androidx.fragment.app.Fragment;
 
 import com.cringe_studios.cringe_authenticator.OTPData;
 import com.cringe_studios.cringe_authenticator.databinding.FragmentDynamicBinding;
-import com.cringe_studios.cringe_authenticator.databinding.OtpCodeBinding;
+import com.cringe_studios.cringe_authenticator.otplist.OTPListAdapter;
+import com.cringe_studios.cringe_authenticator.otplist.OTPListItem;
 import com.cringe_studios.cringe_authenticator.util.FabUtil;
 import com.cringe_studios.cringe_authenticator.util.SettingsUtil;
-import com.cringe_studios.cringe_authenticator_library.OTP;
 
 import java.util.List;
 
@@ -35,6 +34,8 @@ public class DynamicFragment extends Fragment {
 
     private Runnable refreshCodes;
 
+    private OTPListAdapter otpListAdapter;
+
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -47,24 +48,21 @@ public class DynamicFragment extends Fragment {
 
         groupName = requireArguments().getString(DynamicFragment.BUNDLE_GROUP);
 
-        /*String[] totps = new String[]{"Code 1", "Code 2", groupName};
+        FabUtil.showFabs(requireActivity());
-        for(String totp : totps) {
+
-            AuthenticateTotpBinding itemBinding = AuthenticateTotpBinding.inflate(inflater);
+        otpListAdapter = new OTPListAdapter(getContext());
-            itemBinding.displayName.setText(totp);
+        binding.itemList.setAdapter(otpListAdapter);
-            binding.itemList.addView(itemBinding.getRoot());
-        }*/
 
         loadOTPs();
 
-        FabUtil.showFabs(getActivity());
-
         handler = new Handler(Looper.getMainLooper());
         refreshCodes = () -> {
             for(int i = 0; i < binding.itemList.getChildCount(); i++) {
-                View v = binding.itemList.getChildAt(i);
+                OTPListItem vh = (OTPListItem) binding.itemList.findViewHolderForAdapterPosition(i);
-                OTP otp = (OTP) v.getTag();
+                if(vh == null) continue;
-                otp.getPin();
+                vh.getBinding().otpCode.setText(vh.getOTPData().toOTP().getPin());
             }
+
             handler.postDelayed(refreshCodes, 1000L);
         };
 
@@ -73,21 +71,21 @@ public class DynamicFragment extends Fragment {
         return binding.getRoot();
     }
 
-    public void loadOTPs() {
+    private void loadOTPs() {
-        SharedPreferences prefs = getActivity().getSharedPreferences(SettingsUtil.GROUPS_PREFS_NAME, Context.MODE_PRIVATE);
+        SharedPreferences prefs = requireActivity().getSharedPreferences(SettingsUtil.GROUPS_PREFS_NAME, Context.MODE_PRIVATE);
         List<OTPData> data = SettingsUtil.getOTPs(prefs, groupName);
-        Log.i("AMOGUS", "OTPS: " + data);
 
-        binding.itemList.removeAllViews();
         for(OTPData otp : data) {
-            OtpCodeBinding itemBinding = OtpCodeBinding.inflate(getLayoutInflater());
+            otpListAdapter.add(otp);
-            itemBinding.label.setText(otp.getName());
-            itemBinding.otpCode.setText(otp.toOTP().getPin());
-            itemBinding.getRoot().setTag(otp.toOTP());
-            binding.itemList.addView(itemBinding.getRoot());
         }
     }
 
+    public void addOTP(OTPData data) {
+        SharedPreferences prefs = requireActivity().getSharedPreferences(SettingsUtil.GROUPS_PREFS_NAME, Context.MODE_PRIVATE);
+        SettingsUtil.addOTP(prefs, groupName, data);
+        otpListAdapter.add(data);
+    }
+
     @Override
     public void onDestroyView() {
         super.onDestroyView();
@@ -100,8 +98,4 @@ public class DynamicFragment extends Fragment {
         super.onDestroy();
     }
 
-    public String getGroupName() {
-        return groupName;
-    }
-
 }

app/src/main/java/com/cringe_studios/cringe_authenticator/fragment/HomeFragment.java

@@ -16,9 +16,9 @@ public class HomeFragment extends Fragment {
     private FragmentHomeBinding binding;
 
     @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+    public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         binding = FragmentHomeBinding.inflate(inflater, container, false);
-        FabUtil.hideFabs(getActivity());
+        FabUtil.hideFabs(requireActivity());
         return binding.getRoot();
 
     }

app/src/main/java/com/cringe_studios/cringe_authenticator/fragment/MenuFragment.java

@@ -4,17 +4,14 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.view.LayoutInflater;
-import android.view.Menu;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.Button;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
 import androidx.fragment.app.Fragment;
 
-import com.cringe_studios.cringe_authenticator.R;
 import com.cringe_studios.cringe_authenticator.databinding.FragmentMenuBinding;
 import com.cringe_studios.cringe_authenticator.databinding.MenuItemBinding;
 import com.cringe_studios.cringe_authenticator.util.FabUtil;
@@ -29,7 +26,7 @@ public class MenuFragment extends Fragment {
     public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
         binding = FragmentMenuBinding.inflate(inflater);
 
-        SharedPreferences pr = getContext().getSharedPreferences("menu", Context.MODE_PRIVATE);
+        SharedPreferences pr = requireContext().getSharedPreferences("menu", Context.MODE_PRIVATE);
 
         String[] items = {"a", "b"};
 
@@ -42,7 +39,7 @@ public class MenuFragment extends Fragment {
                 NavigationUtil.navigate(this, DynamicFragment.class, bundle);
             });
             itemBinding.button.setOnLongClickListener(view -> {
-                new AlertDialog.Builder(getContext())
+                new AlertDialog.Builder(requireContext())
                         .setTitle("Delete?")
                         .setMessage("Delete this?")
                         .setPositiveButton("Yes", (dialog, which) -> itemBinding.button.setVisibility(View.GONE))
@@ -59,7 +56,7 @@ public class MenuFragment extends Fragment {
             // TODO: edit mode
         });
 
-        FabUtil.hideFabs(getActivity());
+        FabUtil.hideFabs(requireActivity());
 
         return binding.getRoot();
     }

app/src/main/java/com/cringe_studios/cringe_authenticator/fragment/SettingsFragment.java

@@ -7,7 +7,6 @@ import android.view.ViewGroup;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.appcompat.app.AppCompatActivity;
 import androidx.fragment.app.Fragment;
 import androidx.navigation.NavController;
 import androidx.navigation.Navigation;
@@ -30,7 +29,7 @@ public class SettingsFragment extends Fragment {
             controller.navigate(R.id.FirstFragment);
         });
 
-        FabUtil.hideFabs(getActivity());
+        FabUtil.hideFabs(requireActivity());
 
         return binding.getRoot();
     }

app/src/main/java/com/cringe_studios/cringe_authenticator/otplist/OTPListAdapter.java

@@ -0,0 +1,56 @@
+package com.cringe_studios.cringe_authenticator.otplist;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.cringe_studios.cringe_authenticator.OTPData;
+import com.cringe_studios.cringe_authenticator.databinding.OtpCodeBinding;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class OTPListAdapter extends RecyclerView.Adapter<OTPListItem> {
+
+    private LayoutInflater inflater;
+
+    private List<OTPData> items;
+
+    public OTPListAdapter(Context context) {
+        this.inflater = LayoutInflater.from(context);
+        this.items = new ArrayList<>();
+    }
+
+    @NonNull
+    @Override
+    public OTPListItem onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        OtpCodeBinding binding = OtpCodeBinding.inflate(inflater, parent, false);
+        return new OTPListItem(binding);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull OTPListItem holder, int position) {
+        holder.setOTPData(items.get(position));
+        holder.getBinding().label.setText(holder.getOTPData().getName());
+    }
+
+    @Override
+    public int getItemCount() {
+        return items.size();
+    }
+
+    public void add(OTPData data) {
+        items.add(data);
+        notifyItemInserted(items.size() - 1);
+    }
+
+    public void remove(OTPData data) {
+        int index = items.indexOf(data);
+        items.remove(data);
+        notifyItemRemoved(index);
+    }
+
+}

app/src/main/java/com/cringe_studios/cringe_authenticator/otplist/OTPListItem.java

@@ -0,0 +1,32 @@
+package com.cringe_studios.cringe_authenticator.otplist;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.cringe_studios.cringe_authenticator.OTPData;
+import com.cringe_studios.cringe_authenticator.databinding.OtpCodeBinding;
+
+public class OTPListItem extends RecyclerView.ViewHolder {
+
+    private OtpCodeBinding binding;
+
+    private OTPData otpData;
+
+    public OTPListItem(OtpCodeBinding binding) {
+        super(binding.getRoot());
+        this.binding = binding;
+    }
+
+    public @NonNull OtpCodeBinding getBinding() {
+        return binding;
+    }
+
+    public void setOTPData(OTPData otpData) {
+        this.otpData = otpData;
+    }
+
+    public OTPData getOTPData() {
+        return otpData;
+    }
+
+}

app/src/main/java/com/cringe_studios/cringe_authenticator/scanner/QRScannerActivity.java

@@ -8,7 +8,6 @@ import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.util.Log;
-import android.util.Size;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
@@ -22,14 +21,11 @@ import androidx.camera.core.ImageProxy;
 import androidx.camera.core.Preview;
 import androidx.camera.lifecycle.ProcessCameraProvider;
 import androidx.core.content.ContextCompat;
-import androidx.lifecycle.LifecycleOwner;
 
 import com.cringe_studios.cringe_authenticator.OTPData;
 import com.cringe_studios.cringe_authenticator.databinding.ActivityQrScannerBinding;
-import com.cringe_studios.cringe_authenticator_library.OTP;
 import com.cringe_studios.cringe_authenticator_library.OTPAlgorithm;
 import com.cringe_studios.cringe_authenticator_library.OTPType;
-import com.google.android.gms.common.api.CommonStatusCodes;
 import com.google.common.util.concurrent.ListenableFuture;
 import com.google.mlkit.vision.barcode.BarcodeScanner;
 import com.google.mlkit.vision.barcode.BarcodeScannerOptions;
@@ -37,8 +33,6 @@ import com.google.mlkit.vision.barcode.BarcodeScanning;
 import com.google.mlkit.vision.barcode.common.Barcode;
 import com.google.mlkit.vision.common.InputImage;
 
-import java.net.URI;
-import java.net.URL;
 import java.util.concurrent.ExecutionException;
 
 public class QRScannerActivity extends AppCompatActivity {

app/src/main/java/com/cringe_studios/cringe_authenticator/util/NavigationUtil.java

@@ -1,14 +1,12 @@
 package com.cringe_studios.cringe_authenticator.util;
 
 import android.os.Bundle;
-import android.view.View;
 
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
 
 import com.cringe_studios.cringe_authenticator.R;
-import com.google.android.material.floatingactionbutton.FloatingActionButton;
 
 public class NavigationUtil {
 

app/src/main/java/com/cringe_studios/cringe_authenticator/util/SettingsUtil.java

@@ -29,7 +29,7 @@ public class SettingsUtil {
         otps.add(data);
 
         prefs.edit()
-                .putString("group." + group, GSON.toJson(otps.toArray(new OTPData[otps.size()])))
+                .putString("group." + group, GSON.toJson(otps.toArray(new OTPData[0])))
                 .apply();
     }
 

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

@@ -4,20 +4,22 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".fragment.SecondFragment">
+    tools:context=".fragment.DynamicFragment">
 
     <androidx.constraintlayout.widget.ConstraintLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:padding="16dp">
 
-        <LinearLayout
+        <androidx.recyclerview.widget.RecyclerView
             android:id="@+id/itemList"
             android:layout_width="match_parent"
-            android:layout_height="match_parent"
+            android:layout_height="0dp"
             android:orientation="vertical"
-            tools:layout_editor_absoluteX="16dp"
+            app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
-            tools:layout_editor_absoluteY="16dp"></LinearLayout>
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
 
     </androidx.constraintlayout.widget.ConstraintLayout>
 </androidx.core.widget.NestedScrollView>

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

@@ -19,7 +19,7 @@
             android:text="Enable something"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
-            tools:layout_editor_absoluteY="16dp" />
+            app:layout_constraintTop_toTopOf="parent" />
 
     </androidx.constraintlayout.widget.ConstraintLayout>
 </androidx.core.widget.NestedScrollView>

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

@@ -2,14 +2,10 @@
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:orientation="vertical">
+    android:orientation="vertical"
-    <LinearLayout
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
     android:background="@drawable/rectangle"
     android:layout_margin="5dp"
-        android:padding="5dp"
+    android:padding="5dp">
-        android:orientation="vertical">
     <TextView
         android:id="@+id/label"
         android:layout_width="match_parent"
@@ -25,5 +21,4 @@
         android:text="000000"
         android:textAlignment="center"
         android:textSize="20sp" />
-    </LinearLayout>
 </LinearLayout>