fix typo in rename packet in definitions.md

AAP Definitions.md

@@ -162,7 +162,7 @@ The airpods will respond with the same packet after the mode has been changed.
 We can send a packet to rename the AirPods. The packet format is as follows:
 
 ```plaintext
-04 00 04 00 1A 01 [size] 00 [name]
+04 00 04 00 1A 00 01 [size] 00 [name]
 ```
 
 ## Toggle case charging sounds
@@ -326,4 +326,4 @@ Example packet
 
 ```plaintext
 04 00 04 00 17 00 00 00 10 00 11 00 08 7E 10 02 42 0B 08 4E 10 02 1A 05 01 00 00 00 00
-```
+```

android/app/src/main/java/me/kavishdevar/aln/StartupReceiver.kt

@@ -0,0 +1,74 @@
+package me.kavishdevar.aln
+
+import android.annotation.SuppressLint
+import android.bluetooth.BluetoothAdapter
+import android.bluetooth.BluetoothDevice
+import android.bluetooth.BluetoothProfile
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.os.ParcelUuid
+
+class StartupReceiver : BroadcastReceiver() {
+
+    companion object {
+        val PodsUUIDS: Set<ParcelUuid> = setOf(
+            ParcelUuid.fromString("74ec2172-0bad-4d01-8f77-997b2be0722a"),
+            ParcelUuid.fromString("2a72e02b-7b99-778f-014d-ad0b7221ec74")
+        )
+
+        val btActions: Set<String> = setOf(
+            BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED,
+            BluetoothDevice.ACTION_ACL_CONNECTED,
+            BluetoothDevice.ACTION_ACL_DISCONNECTED,
+            BluetoothDevice.ACTION_BOND_STATE_CHANGED,
+            BluetoothDevice.ACTION_NAME_CHANGED
+        )
+    }
+
+    override fun onReceive(context: Context?, intent: Intent?) {
+        if (intent == null || context == null) return
+
+        intent.action?.let { action ->
+            if (btActions.contains(action)) {
+                try {
+                    val state = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, BluetoothAdapter.ERROR)
+                    val device: BluetoothDevice? = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE)
+                    device?.let {
+                        btProfileChanges(context, state, it)
+                    }
+                } catch (e: NullPointerException) {
+                }
+            }
+        }
+    }
+
+    @SuppressLint("MissingPermission")
+    private fun isPods(device: BluetoothDevice): Boolean {
+        device.uuids?.forEach { uuid ->
+            if (PodsUUIDS.contains(uuid)) {
+                return true
+            }
+        }
+        return false
+    }
+
+    private fun startPodsService(context: Context, device: BluetoothDevice) {
+        if (!isPods(device)) return
+        val intent = Intent(context, AirPodsService::class.java).apply {
+            putExtra(BluetoothDevice.EXTRA_DEVICE, device)
+        }
+        context.startService(intent)
+    }
+
+    private fun stopPodsService(context: Context) {
+        context.stopService(Intent(context, AirPodsService::class.java))
+    }
+
+    private fun btProfileChanges(context: Context, state: Int, device: BluetoothDevice) {
+        when (state) {
+            BluetoothProfile.STATE_CONNECTED -> startPodsService(context, device)
+            BluetoothProfile.STATE_DISCONNECTED, BluetoothProfile.STATE_DISCONNECTING -> stopPodsService(context)
+        }
+    }
+}