feat: Reconnect button (#6)

app/src/main/java/eu/ztsh/garmin/Garmin.kt

@@ -48,6 +48,14 @@ class Garmin(
         locations.start()
     }
 
+    fun reconnect() {
+        Log.d(TAG, "reconnect pressed")
+        if (!connection.isConnecting.get()) {
+            Log.d(TAG, "reconnection enqueued")
+            context.runAsync { connection.tryConnect() }
+        }
+    }
+
     fun close() {
         connection.close()
 
@@ -185,6 +193,7 @@ class Garmin(
 
     private inner class ConnectThread : Thread() {
 
+        val isConnecting = AtomicBoolean(false)
         private val queue: SynchronousQueue<IntArray> = SynchronousQueue()
         private val state = AtomicBoolean(false)
         private var current: IntArray = intArrayOf()
@@ -195,24 +204,30 @@ class Garmin(
         }
 
         fun tryConnect() {
-            context.checkBt()
-            // Cancel discovery because it otherwise slows down the connection.
-            adapter.cancelDiscovery()
-            try {
-                socket?.connect()
-                context.toastConnectionStatus(true)
-                sleep(3000)
-                readAll()
-                send(intArrayOf(0x07, 0x01)) // Set GPS to true
-                send(intArrayOf(0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)) // Clear screen
-                state.set(true)
-            } catch (e: IOException) {
-                Log.d(TAG, "Not connected", e)
-                context.toastConnectionStatus(false)
-                state.set(false)
+            Log.d(TAG, "Connection requested")
+            if (!isConnecting.get()) {
+                Log.d(TAG, "Trying to connect...")
+                isConnecting.set(true)
+                context.checkBt()
+                // Cancel discovery because it otherwise slows down the connection.
+                adapter.cancelDiscovery()
+                try {
+                    socket?.connect()
+                    context.toastConnectionStatus(true)
+                    sleep(3000)
+                    readAll()
+                    send(intArrayOf(0x07, 0x01)) // Set GPS to true
+                    send(intArrayOf(0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)) // Clear screen
+                    state.set(true)
+                } catch (e: IOException) {
+                    Log.d(TAG, "Not connected", e)
+                    context.toastConnectionStatus(false)
+                    state.set(false)
+                }
+                queue.clear()
+                current = intArrayOf()
+                isConnecting.set(false)
             }
-            queue.clear()
-            current = intArrayOf()
         }
 
         override fun run() {
@@ -262,9 +277,13 @@ class Garmin(
         }
 
         private fun sendRaw(buff: IntArray) {
-            buff.forEach { socket!!.outputStream.write(it) }
-            socket!!.outputStream.flush()
-            readAll()
+            try {
+                buff.forEach { socket!!.outputStream.write(it) }
+                socket!!.outputStream.flush()
+                readAll()
+            } catch (e: Exception) {
+                Log.d(TAG, "sendRaw: ${e.message}")
+            }
         }
 
     }

app/src/main/java/eu/ztsh/garmin/MainActivity.kt

@@ -17,6 +17,7 @@ import androidx.activity.result.contract.ActivityResultContracts.StartActivityFo
 import androidx.appcompat.app.AppCompatActivity
 import androidx.core.app.ActivityCompat
 import androidx.lifecycle.DefaultLifecycleObserver
+import androidx.lifecycle.lifecycleScope
 import com.mapbox.navigation.base.options.NavigationOptions
 import com.mapbox.navigation.core.MapboxNavigation
 import com.mapbox.navigation.core.lifecycle.MapboxNavigationApp
@@ -25,6 +26,9 @@ import com.mapbox.navigation.core.lifecycle.requireMapboxNavigation
 import eu.ztsh.garmin.databinding.ActivityMainBinding
 import eu.ztsh.garmin.mapbox.MapControl
 import eu.ztsh.garmin.util.PermissionsHelper
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import java.lang.ref.WeakReference
 
 
@@ -124,6 +128,14 @@ class MainActivity : AppCompatActivity() {
         return true
     }
 
+    fun runAsync(action: () -> Unit) {
+        lifecycleScope.launch {
+            withContext(Dispatchers.IO) {
+                action()
+            }
+        }
+    }
+
     fun toastConnectionStatus(success: Boolean) {
         this.runOnUiThread {
             if (success) {

app/src/main/java/eu/ztsh/garmin/mapbox/MapControl.kt

@@ -22,6 +22,7 @@ import com.mapbox.navigation.ui.maps.camera.data.MapboxNavigationViewportDataSou
 import com.mapbox.navigation.ui.maps.camera.lifecycle.NavigationBasicGesturesHandler
 import com.mapbox.navigation.ui.maps.camera.state.NavigationCameraState
 import com.mapbox.navigation.ui.maps.location.NavigationLocationProvider
+import eu.ztsh.garmin.Garmin
 import eu.ztsh.garmin.MainActivity
 import eu.ztsh.garmin.UI
 import eu.ztsh.garmin.mock.ReplayResources
@@ -105,6 +106,12 @@ class MapControl(
         locationObserver = LocationObserver(this)
         routeProgressObserver = routeControl.routeProgressObserver
         voiceInstructionsObserver = voiceControl.voiceInstructionsObserver
+
+
+        ui.reconnect.setOnClickListener {
+            Garmin.instance.reconnect()
+            ui.reconnect.showTextAndExtend(UI.BUTTON_ANIMATION_DURATION)
+        }
     }
 
     fun routeToPoint(point: Point) {