Initial commit

app/build.gradle

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+plugins {
+    id 'com.android.application'
+}
+
+android {
+    compileSdk 31
+
+    defaultConfig {
+        applicationId "dev.patri9ck.a2ln"
+        minSdk 24
+        targetSdk 31
+        versionCode 1
+        versionName "1.0"
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+    implementation 'com.google.code.gson:gson:2.8.9'
+    implementation 'com.google.android.material:material:1.4.0'
+    implementation 'org.zeromq:jeromq:0.5.2'
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="dev.patri9ck.a2ln">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme">
+        <activity
+            android:name="dev.patri9ck.a2ln.address.AddressesActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name="dev.patri9ck.a2ln.app.AppsActivity" />
+
+        <service
+            android:name="dev.patri9ck.a2ln.notification.NotificationReceiver"
+            android:exported="false"
+            android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE">
+            <intent-filter>
+                <action android:name="android.service.notification.NotificationListenerService" />
+            </intent-filter>
+        </service>
+    </application>
+</manifest>

app/src/main/java/dev/patri9ck/a2ln/address/Address.java

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+package dev.patri9ck.a2ln.address;
+
+public class Address {
+
+    private String host;
+    private int port;
+
+    public Address() {}
+
+    public Address(String host, int port) {
+        this.host = host;
+        this.port = port;
+    }
+
+    public String getHost() {
+        return host;
+    }
+
+    public int getPort() {
+        return port;
+    }
+
+    @Override
+    public String toString() {
+        return host + ":" + port;
+    }
+}

app/src/main/java/dev/patri9ck/a2ln/address/AddressesActivity.java

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+package dev.patri9ck.a2ln.address;
+
+import android.app.Activity;
+import android.content.ComponentName;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.os.Bundle;
+import android.os.IBinder;
+import android.provider.Settings;
+import android.view.View;
+import android.widget.EditText;
+
+import androidx.recyclerview.widget.ItemTouchHelper;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.google.gson.Gson;
+
+import java.util.List;
+
+import dev.patri9ck.a2ln.R;
+import dev.patri9ck.a2ln.app.AppsActivity;
+import dev.patri9ck.a2ln.configuration.Configuration;
+import dev.patri9ck.a2ln.configuration.Storage;
+import dev.patri9ck.a2ln.notification.NotificationReceiver;
+
+public class AddressesActivity extends Activity {
+
+    private Gson gson = new Gson();
+
+    private Storage storage;
+    private Configuration configuration;
+
+    private List<Address> addresses;
+    private AddressesAdapter addressesAdapter;
+
+    private NotificationReceiver notificationReceiver;
+    private boolean bound;
+
+    private ServiceConnection serviceConnection = new ServiceConnection() {
+        @Override
+        public void onServiceConnected(ComponentName name, IBinder service) {
+            notificationReceiver = ((NotificationReceiver.NotificationReceiverBinder) service).getNotificationReceiver();
+
+            notificationReceiver.setAddresses(addresses);
+        }
+
+        @Override
+        public void onServiceDisconnected(ComponentName name) {
+            notificationReceiver = null;
+        }
+    };
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        setContentView(R.layout.addresses_activity);
+
+        storage = new Storage(this);
+        configuration = gson.fromJson(getIntent().getStringExtra(Configuration.class.getName()), Configuration.class);
+
+        if (configuration == null) {
+            configuration = storage.loadConfiguration();
+        }
+
+        loadAddressesRecyclerView();
+    }
+
+    @Override
+    protected void onStart() {
+        super.onStart();
+
+        bound = bindService(new Intent(this, NotificationReceiver.class), serviceConnection, 0);
+    }
+
+    @Override
+    protected void onStop() {
+        super.onStop();
+
+        if (!bound) {
+            return;
+        }
+
+        unbindService(serviceConnection);
+        bound = false;
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+
+        storage.saveConfiguration(configuration);
+    }
+
+    public void onAdd(View view) {
+        String host = ((EditText) findViewById(R.id.host_edit_text)).getText().toString();
+        String port = ((EditText) findViewById(R.id.port_edit_text)).getText().toString();
+
+        if (host.isEmpty() || port.isEmpty()) {
+            return;
+        }
+
+        for (Address address : addresses) {
+            if (address.getHost().equals(host)) {
+                return;
+            }
+        }
+
+        addresses.add(new Address(host, Integer.parseInt(port)));
+
+        addressesAdapter.notifyItemInserted(addresses.size());
+
+        if (notificationReceiver == null) {
+            return;
+        }
+
+        notificationReceiver.setAddresses(addresses);
+    }
+
+    public void onApps(View view) {
+        Intent intent = new Intent(this, AppsActivity.class);
+
+        intent.putExtra(Configuration.class.getName(), gson.toJson(configuration));
+
+        startActivity(intent);
+    }
+
+    public void onPermission(View view) {
+        startActivity(new Intent(Settings.ACTION_NOTIFICATION_LISTENER_SETTINGS));
+    }
+
+    private void loadAddressesRecyclerView() {
+        addresses = configuration.getAddresses();
+        addressesAdapter = new AddressesAdapter(addresses);
+
+        RecyclerView addressesRecyclerView = findViewById(R.id.addresses_recycler_view);
+
+        addressesRecyclerView.setAdapter(addressesAdapter);
+        addressesRecyclerView.setLayoutManager(new LinearLayoutManager(this));
+
+        new ItemTouchHelper(new SwipeToDeleteCallback(this, addresses, addressesAdapter)).attachToRecyclerView(addressesRecyclerView);
+    }
+}

app/src/main/java/dev/patri9ck/a2ln/address/AddressesAdapter.java

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+package dev.patri9ck.a2ln.address;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.util.List;
+
+import dev.patri9ck.a2ln.R;
+
+public class AddressesAdapter extends RecyclerView.Adapter<AddressesAdapter.AddressViewHolder> {
+
+    private List<Address> addresses;
+
+    public AddressesAdapter(List<Address> addresses) {
+        this.addresses = addresses;
+    }
+
+    @Override
+    public AddressViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        return new AddressViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.address_item, parent, false));
+    }
+
+    @Override
+    public void onBindViewHolder(AddressViewHolder holder, int position) {
+        holder.addressTextView.setText(addresses.get(position).toString());
+    }
+
+    @Override
+    public int getItemCount() {
+        return addresses.size();
+    }
+
+    protected static class AddressViewHolder extends RecyclerView.ViewHolder {
+
+        private final TextView addressTextView;
+
+        public AddressViewHolder(View itemView) {
+            super(itemView);
+
+            addressTextView = itemView.findViewById(R.id.address_text_view);
+        }
+    }
+}

app/src/main/java/dev/patri9ck/a2ln/address/SwipeToDeleteCallback.java

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+package dev.patri9ck.a2ln.address;
+
+import androidx.recyclerview.widget.ItemTouchHelper;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.google.android.material.snackbar.Snackbar;
+
+import java.util.List;
+
+import dev.patri9ck.a2ln.R;
+
+public class SwipeToDeleteCallback extends ItemTouchHelper.SimpleCallback {
+
+    private AddressesActivity addressesActivity;
+    private List<Address> addresses;
+    private AddressesAdapter addressesAdapter;
+
+    public SwipeToDeleteCallback(AddressesActivity addressesActivity, List<Address> addresses, AddressesAdapter addressesAdapter) {
+        super(0, ItemTouchHelper.LEFT);
+
+        this.addressesActivity = addressesActivity;
+        this.addresses = addresses;
+        this.addressesAdapter = addressesAdapter;
+    }
+
+    @Override
+    public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
+        return false;
+    }
+
+    @Override
+    public void onSwiped(RecyclerView.ViewHolder viewHolder, int direction) {
+        int position = viewHolder.getAdapterPosition();
+
+        Address address = addresses.remove(position);
+
+        addressesAdapter.notifyItemRemoved(position);
+
+        Snackbar.make(addressesActivity.findViewById(android.R.id.content), R.string.removed_address, Snackbar.LENGTH_LONG)
+                .setAction(R.string.removed_address_undo, v -> {
+                    addresses.add(position, address);
+
+                    addressesAdapter.notifyItemInserted(position);
+                }).show();
+    }
+}

app/src/main/java/dev/patri9ck/a2ln/app/App.java

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+package dev.patri9ck.a2ln.app;
+
+import android.graphics.drawable.Drawable;
+
+public class App {
+
+    private String name;
+    private String packageName;
+    private Drawable icon;
+    private boolean enabled;
+
+    public App(String name, String packageName, Drawable icon, boolean enabled) {
+        this.name = name;
+        this.packageName = packageName;
+        this.icon = icon;
+        this.enabled = enabled;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getPackageName() {
+        return packageName;
+    }
+
+    public Drawable getIcon() {
+        return icon;
+    }
+
+    public boolean isEnabled() {
+        return enabled;
+    }
+
+    public void setEnabled(boolean enabled) {
+        this.enabled = enabled;
+    }
+}