1 files changed, 75 insertions, 0 deletions
diff --git a/app/src/main/java/com/arslaancodes/zwznfreefit/MainActivity.kt b/app/src/main/java/com/arslaancodes/zwznfreefit/MainActivity.kt
new file mode 100644
index 0000000..59bff65
--- /dev/null
+++ b/app/src/main/java/com/arslaancodes/zwznfreefit/MainActivity.kt
@@ -0,0 +1,75 @@
+package com.arslaancodes.zwznfreefit
+
+import android.Manifest
+import android.bluetooth.BluetoothDevice
+import android.content.pm.PackageManager
+import android.os.Bundle
+import android.widget.*
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.app.ActivityCompat
+import android.content.Intent
+
+class MainActivity : AppCompatActivity() {
+	private lateinit var bleManager: BleManager
+	private lateinit var statusText: TextView
+	private lateinit var scanButton: Button
+	private lateinit var deviceList: ListView
+
+	private val devices = mutableListOf<BluetoothDevice>()
+	private val deviceNames = mutableListOf<String>()
+	private lateinit var adapter: ArrayAdapter<String>
+
+	override fun onCreate(savedInstanceState: Bundle?) {
+		super.onCreate(savedInstanceState)
+		setContentView(R.layout.activity_main)
+		window.decorView.systemUiVisibility = (
+			android.view.View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
+			or android.view.View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
+		)
+
+		bleManager = BleManager(this)
+		statusText = findViewById(R.id.statusText)
+		scanButton = findViewById(R.id.scanButton)
+		deviceList = findViewById(R.id.deviceList)
+
+		adapter = ArrayAdapter(this, android.R.layout.simple_list_item_1, deviceNames)
+		deviceList.adapter = adapter
+
+		deviceList.setOnItemClickListener { _, _, position, _ ->
+			val device = devices[position]
+			statusText.text = "Connecting to ${device.name ?: device.address}..."
+			bleManager.connect(device) {
+				runOnUiThread {
+					val intent = Intent(this, DeviceActivity::class.java)
+					intent.putExtra("device_address", device.address)
+					startActivity(intent)
+				}
+			}
+		}
+
+		scanButton.setOnClickListener {
+			if (ActivityCompat.checkSelfPermission(this, Manifest.permission.BLUETOOTH_SCAN) != PackageManager.PERMISSION_GRANTED || ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED || ActivityCompat.checkSelfPermission(this, Manifest.permission.BLUETOOTH_CONNECT) != PackageManager.PERMISSION_GRANTED) {
+				ActivityCompat.requestPermissions(this,
+					arrayOf(
+						Manifest.permission.BLUETOOTH_SCAN,
+						Manifest.permission.BLUETOOTH_CONNECT,
+						Manifest.permission.ACCESS_FINE_LOCATION
+					), 1)
+				return@setOnClickListener
+			}
+			devices.clear()
+			deviceNames.clear()
+			adapter.notifyDataSetChanged()
+			statusText.text = "Scanning..."
+			bleManager.scan { device ->
+				runOnUiThread {
+					if (devices.none { it.address == device.address }) {
+						devices.add(device)
+						deviceNames.add(device.name ?: device.address)
+						adapter.notifyDataSetChanged()
+					}
+				}
+			}
+		}
+	}
+}