update

software/android/.idea/misc.xml

@@ -5,6 +5,7 @@
       <map>
         <entry key="..\:/Users/rooki/Documents/GitHub/hexapod/software/android/app/src/main/res/layout/activity_control.xml" value="0.32472826086956524" />
         <entry key="..\:/Users/rooki/Documents/GitHub/hexapod/software/android/app/src/main/res/layout/activity_main.xml" value="0.2717391304347826" />
+        <entry key="..\:/Users/rooki/Documents/GitHub/hexapod/software/android/app/src/main/res/layout/device_name.xml" value="0.2826086956521739" />
       </map>
     </option>
   </component>

software/android/app/src/main/java/com/rookiedev/hexapod/MainActivity.kt

@@ -1,35 +1,48 @@
 package com.rookiedev.hexapod
 
+import android.Manifest
+import android.bluetooth.BluetoothDevice
+import android.bluetooth.BluetoothManager
+import android.content.Context
 import android.content.Intent
+import android.content.pm.PackageManager
 import android.net.InetAddresses.isNumericAddress
+import android.os.Build
 import android.os.Bundle
 import android.text.Editable
 import android.text.TextWatcher
 import android.text.method.LinkMovementMethod
-import android.widget.Button
+import android.view.View
-import android.widget.TextView
+import android.widget.*
+import android.widget.AdapterView.OnItemClickListener
+import androidx.annotation.RequiresApi
 import androidx.appcompat.app.AppCompatActivity
+import androidx.core.app.ActivityCompat
+import com.google.android.material.tabs.TabLayout
 import com.google.android.material.textfield.TextInputEditText
 import com.google.android.material.textfield.TextInputLayout
-import java.lang.String
-import kotlin.CharSequence
-import kotlin.Int
-import kotlin.apply
-import kotlin.toString
 
 
 class MainActivity : AppCompatActivity() {
+    companion object {
+        private const val BLUETOOTH_PERMISSION_CODE = 100
+        private const val INTERNET_PERMISSION_CODE = 101
+    }
     private val SHAREDPREFSNAME = "com.rookiedev.hexapod_preferences"
     private val SHAREDPREFSIP = "IP"
     private val SHAREDPREFSPORT = "PORT"
 
-    private lateinit var ipInput:TextInputEditText
+    private var mContext: Context?=null
-    private lateinit var portInput:TextInputEditText
+
+    private lateinit var ipInput: TextInputEditText
+    private lateinit var portInput: TextInputEditText
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
 
+        mContext = applicationContext
+
         ipInput = findViewById(R.id.ip_input)
         portInput = findViewById(R.id.port_input)
         val buttonConnect = findViewById<Button>(R.id.button_connect)
@@ -37,9 +50,98 @@ class MainActivity : AppCompatActivity() {
         val ipLayout = findViewById<TextInputLayout>(R.id.ip_input_layout)
         val portLayout = findViewById<TextInputLayout>(R.id.port_input_layout)
 
+        val deviceList = findViewById<ListView>(R.id.paired_devices)
+
         val sourceLink = findViewById<TextView>(R.id.textView_github)
         sourceLink.movementMethod = LinkMovementMethod.getInstance()
 
+
+        val tabLayout = findViewById<TabLayout>(R.id.tab)
+        tabLayout.addOnTabSelectedListener(
+            object : TabLayout.OnTabSelectedListener {
+                @RequiresApi(Build.VERSION_CODES.S)
+                override fun onTabSelected(tab: TabLayout.Tab?) {
+                    if (tab!!.text == "WiFi") {
+                        ipLayout.visibility = View.VISIBLE
+                        portLayout.visibility = View.VISIBLE
+                        deviceList.visibility = View.GONE
+                    } else if (tab.text == "Bluetooth") {
+                        checkPermission(Manifest.permission.BLUETOOTH_CONNECT, BLUETOOTH_PERMISSION_CODE)
+                        if (ActivityCompat.checkSelfPermission(
+                                mContext!!,
+                                Manifest.permission.BLUETOOTH_CONNECT
+                            ) != PackageManager.PERMISSION_GRANTED
+                        ) {
+                            // TODO: Consider calling
+                            //    ActivityCompat#requestPermissions
+                            // here to request the missing permissions, and then overriding
+                            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
+                            //                                          int[] grantResults)
+                            // to handle the case where the user grants the permission. See the documentation
+                            // for ActivityCompat#requestPermissions for more details.
+                            return
+                        }
+                        ipLayout.visibility = View.GONE
+                        portLayout.visibility = View.GONE
+                        deviceList.visibility = View.VISIBLE
+
+                        // Initialize array adapters. One for already paired devices and
+                        // one for newly discovered devices
+
+                        // Initialize array adapters. One for already paired devices and
+                        // one for newly discovered devices
+                        val pairedDevicesArrayAdapter =
+                            ArrayAdapter<kotlin.String>(mContext!!, R.layout.device_name)
+
+                        // Find and set up the ListView for paired devices
+
+                        // Find and set up the ListView for paired devices
+                        val pairedListView = findViewById<ListView>(R.id.paired_devices)
+                        pairedListView.adapter = pairedDevicesArrayAdapter
+                        pairedListView.onItemClickListener = mDeviceClickListener
+
+                        // Get the local Bluetooth adapter
+
+                        // Get the local Bluetooth adapter
+//                        mBtAdapter = BluetoothAdapter.getDefaultAdapter()
+                        val bluetoothManager = mContext!!.getSystemService(Context.BLUETOOTH_SERVICE) as BluetoothManager
+                        bluetoothManager.adapter
+
+                        // Get a set of currently paired devices
+
+                        // Get a set of currently paired devices
+                        val pairedDevices: Set<BluetoothDevice> = bluetoothManager.adapter.bondedDevices
+
+                        // If there are paired devices, add each one to the ArrayAdapter
+
+                        // If there are paired devices, add each one to the ArrayAdapter
+                        if (pairedDevices.isNotEmpty()) {
+//                            findViewById<View>(R.id.title_paired_devices).visibility = View.VISIBLE
+                            for (device in pairedDevices) {
+                                pairedDevicesArrayAdapter.add(
+                                    """
+                                    ${device.name}
+                                    ${device.address}
+                                    """.trimIndent()
+                                )
+                            }
+                            pairedListView.layoutParams.height = 153*6
+                        }
+//                        else {
+//                            val noDevices = resources.getText(R.string.none_paired).toString()
+//                            pairedDevicesArrayAdapter.add(noDevices)
+//                        }
+                    }
+                }
+
+                override fun onTabUnselected(tab: TabLayout.Tab?) {
+                }
+
+                override fun onTabReselected(tab: TabLayout.Tab?) {
+                }
+            }
+        )
+
         readSharedPref()
 
         buttonConnect.setOnClickListener {
@@ -82,6 +184,59 @@ class MainActivity : AppCompatActivity() {
         })
     }
 
+    // Function to check and request permission.
+    private fun checkPermission(permission: String, requestCode: Int) {
+        if (ActivityCompat.checkSelfPermission(this@MainActivity, permission) == PackageManager.PERMISSION_DENIED) {
+
+            // Requesting the permission
+            ActivityCompat.requestPermissions(this@MainActivity, arrayOf(permission), requestCode)
+        } else {
+            Toast.makeText(this@MainActivity, "Permission already granted", Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    // This function is called when the user accepts or decline the permission.
+    // Request Code is used to check which permission called this function.
+    // This request code is provided when the user is prompt for permission.
+    override fun onRequestPermissionsResult(requestCode: Int,
+                                            permissions: Array<String>,
+                                            grantResults: IntArray) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+        if (requestCode == BLUETOOTH_PERMISSION_CODE) {
+            if (grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                Toast.makeText(this@MainActivity, "Camera Permission Granted", Toast.LENGTH_SHORT).show()
+            } else {
+                Toast.makeText(this@MainActivity, "Camera Permission Denied", Toast.LENGTH_SHORT).show()
+            }
+        } else if (requestCode == INTERNET_PERMISSION_CODE) {
+            if (grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                Toast.makeText(this@MainActivity, "Storage Permission Granted", Toast.LENGTH_SHORT).show()
+            } else {
+                Toast.makeText(this@MainActivity, "Storage Permission Denied", Toast.LENGTH_SHORT).show()
+            }
+        }
+    }
+
+    /**
+     * The on-click listener for all devices in the ListViews
+     */
+    private val mDeviceClickListener =
+        OnItemClickListener { av, v, arg2, arg3 -> // Cancel discovery because it's costly and we're about to connect
+//            mBtAdapter.cancelDiscovery()
+//
+//            // Get the device MAC address, which is the last 17 chars in the View
+//            val info = (v as TextView).text.toString()
+//            val address = info.substring(info.length - 17)
+//
+//            // Create the result Intent and include the MAC address
+//            val intent = Intent()
+//            intent.putExtra(EXTRA_DEVICE_ADDRESS, address)
+//
+//            // Set result and finish this Activity
+//            setResult(RESULT_OK, intent)
+//            finish()
+        }
+
     private fun readSharedPref() {
         val prefs = getSharedPreferences(
             SHAREDPREFSNAME,

software/android/app/src/main/res/drawable/ic_baseline_bluetooth_24.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M17.71,7.71L12,2h-1v7.59L6.41,5 5,6.41 10.59,12 5,17.59 6.41,19 11,14.41L11,22h1l5.71,-5.71 -4.3,-4.29 4.3,-4.29zM13,5.83l1.88,1.88L13,9.59L13,5.83zM14.88,16.29L13,18.17v-3.76l1.88,1.88z"/>
+</vector>

software/android/app/src/main/res/drawable/ic_baseline_menu_24.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M3,18h18v-2L3,16v2zM3,13h18v-2L3,11v2zM3,6v2h18L21,6L3,6z"/>
+</vector>

software/android/app/src/main/res/layout/activity_main.xml

@@ -55,7 +55,8 @@
             app:layout_constraintBottom_toTopOf="@id/port_input_layout"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@+id/tab">
+            app:layout_constraintTop_toBottomOf="@+id/tab"
+            android:visibility="visible">
 
             <com.google.android.material.textfield.TextInputEditText
                 android:id="@+id/ip_input"
@@ -73,10 +74,11 @@
             android:layout_height="wrap_content"
             android:layout_marginBottom="4dp"
             app:errorEnabled="true"
-            app:layout_constraintBottom_toTopOf="@id/button_connect"
+            app:layout_constraintBottom_toTopOf="@id/paired_devices"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/ip_input_layout">
+            app:layout_constraintTop_toBottomOf="@id/ip_input_layout"
+            android:visibility="visible">
 
             <com.google.android.material.textfield.TextInputEditText
                 android:id="@+id/port_input"
@@ -88,6 +90,26 @@
 
         </com.google.android.material.textfield.TextInputLayout>
 
+        <ListView
+            android:id="@+id/paired_devices"
+            android:layout_width="match_parent"
+            android:layout_height="fill_parent"
+            android:layout_weight="1"
+            android:stackFromBottom="true"
+            android:orientation="vertical"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/port_input_layout"
+            app:layout_constraintBottom_toTopOf="@id/button_connect"
+            android:visibility="visible"/>
+
+<!--        <include-->
+<!--            layout="@layout/device_name"-->
+<!--            app:layout_constraintEnd_toEndOf="parent"-->
+<!--            app:layout_constraintHorizontal_bias="1.0"-->
+<!--            app:layout_constraintStart_toStartOf="parent"-->
+<!--            app:layout_constraintTop_toBottomOf="@+id/paired_devices" />-->
+
         <Button
             android:id="@+id/button_connect"
             android:layout_width="0dp"
@@ -98,7 +120,7 @@
             android:text="Connect"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/port_input_layout" />
+            app:layout_constraintTop_toBottomOf="@id/paired_devices" />
 
         <TextView
             android:id="@+id/textView_github"

software/android/app/src/main/res/layout/device_name.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+          http://www.apache.org/licenses/LICENSE-2.0
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:padding="5dp"
+    android:textSize="18sp"
+    />

software/android/app/src/main/res/layout/selected_device.xml

@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <ImageView
+        android:id="@+id/imageView"
+        android:layout_width="40dp"
+        android:layout_height="40dp"
+        android:padding="8dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintEnd_toStartOf="@+id/textView"
+        app:srcCompat="@drawable/ic_baseline_bluetooth_24" />
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textAppearance="?attr/textAppearanceHeadline6"
+        android:text="TextView"
+        app:layout_constraintBottom_toTopOf="@+id/textView2"
+        app:layout_constraintStart_toEndOf="@+id/imageView"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_chainStyle="packed" />
+
+    <TextView
+        android:id="@+id/textView2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textAppearance="?attr/textAppearanceBody2"
+        android:text="TextView"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toEndOf="@+id/imageView"
+        app:layout_constraintTop_toBottomOf="@+id/textView" />
+
+    <ImageView
+        android:id="@+id/imageView2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:srcCompat="@drawable/ic_baseline_menu_24" />
+</androidx.constraintlayout.widget.ConstraintLayout>