[+] Store config on scan complete

app/src/main/java/org/hydev/wearsync/ActivityScan.kt

@@ -4,6 +4,7 @@ import android.annotation.SuppressLint
 import android.os.Bundle
 import android.os.Handler
 import android.os.Looper
+import android.view.View
 import android.widget.ArrayAdapter
 import androidx.appcompat.app.AppCompatActivity
 import com.welie.blessed.BluetoothPeripheral
@@ -14,11 +15,13 @@ import java.util.*
 
 class ActivityScan : AppCompatActivity() {
     lateinit var binding: ActivityScanBinding
+    lateinit var view: View
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         binding = ActivityScanBinding.inflate(layoutInflater)
         setContentView(binding.root)
+        view = binding.root
 
         initBluetoothHandler()
     }
@@ -27,6 +30,12 @@ class ActivityScan : AppCompatActivity() {
     private fun initBluetoothHandler() {
         println("OnCreate called, Initializing...")
 
+        // Device exists
+        chosenDevice?.let { addr ->
+            ble.connectAddress(addr) { connected(addr) }
+            return
+        }
+
         // List bonded device addresses
         val pairedDevices = blueMan().adapter.bondedDevices.toList()
         val pairedAddresses = pairedDevices.map { it.address }.toSet()
@@ -51,7 +60,7 @@ class ActivityScan : AppCompatActivity() {
         binding.lvScanned.setOnItemClickListener { parent, view, position, id ->
             ble.central.stopScan()
             ble.connectPeripheral(scannedDevices[position]) {
-                view.snack("✅ Connected.")
+                connected(scannedDevices[position].address)
             }
         }
 
@@ -69,8 +78,15 @@ class ActivityScan : AppCompatActivity() {
 
             // Scan for the device with the MAC address
             ble.connectAddress(dev.address) {
-                view.snack("✅ Connected.")
+                connected(dev.address)
             }
         }
     }
+
+    fun connected(address: String)
+    {
+        view.snack("✅ Connected.")
+        chosenDevice = address
+        finish()
+    }
 }

app/src/main/java/org/hydev/wearsync/Extensions.kt

@@ -1,12 +1,20 @@
 package org.hydev.wearsync
 
+import android.app.Activity
 import android.bluetooth.BluetoothManager
 import android.content.Context
+import android.content.Intent
 import android.view.View
 import androidx.appcompat.app.AppCompatActivity
+import androidx.core.content.edit
 import com.google.android.material.snackbar.Snackbar
 
 fun View.snack(msg: String) = Snackbar.make(this, msg, Snackbar.LENGTH_LONG)
     .setAction("Action", null).show()
 
 fun Context.blueMan() = getSystemService(AppCompatActivity.BLUETOOTH_SERVICE) as BluetoothManager
+val Context.pref get() = getSharedPreferences("settings", Context.MODE_PRIVATE)
+var Context.chosenDevice: String?
+    get() = pref.getString("mac", null)
+    set(value) = pref.edit { putString("mac", value) }
+