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@@ -1,33 +1,38 @@
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package com.example.watch.ui.activity
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-import android.os.Bundle
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-import androidx.appcompat.app.AppCompatActivity
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-import android.view.Window
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-import android.view.WindowManager
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-import com.example.watch.R
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-
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-import kotlinx.android.synthetic.main.activity_main.*
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-import android.bluetooth.BluetoothManager
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-import android.content.Context
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+import android.Manifest
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import android.bluetooth.BluetoothAdapter
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-import android.widget.Toast
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-import android.content.Intent
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import android.bluetooth.BluetoothDevice
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+import android.bluetooth.BluetoothManager
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import android.bluetooth.le.BluetoothLeScanner
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import android.bluetooth.le.ScanCallback
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import android.bluetooth.le.ScanResult
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+import android.content.Context
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+import android.content.Intent
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+import android.content.pm.PackageManager
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+import android.os.Bundle
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import android.os.Handler
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+import android.view.Window
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+import android.view.WindowManager
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+import android.widget.Button
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+import android.widget.Toast
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+import androidx.appcompat.app.AppCompatActivity
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+import androidx.core.app.ActivityCompat
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+import com.example.watch.R
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+import kotlinx.android.synthetic.main.activity_main.*
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+
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class MainActivity : AppCompatActivity() {
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-// 声明变量
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+ // 声明变量
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private val REQUEST_BLUETOOTH_TURN_ON = 1
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- private val BLE_SCAN_PERIOD : Long = 10000
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+ private val BLE_SCAN_PERIOD: Long = 10000
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private lateinit var bleAdapter: BluetoothAdapter
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private lateinit var bleManager: BluetoothManager
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private lateinit var bleScanner: BluetoothLeScanner
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+ private lateinit var bleScanCallback: BleScanCallback
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private var bleScanResults = mutableMapOf<String?, BluetoothDevice?>()
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- private lateinit var bleScanHandler:Handler
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+ private lateinit var bleScanHandler: Handler
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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@@ -35,11 +40,100 @@ class MainActivity : AppCompatActivity() {
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// 去掉顶部状态栏
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requestWindowFeature(Window.FEATURE_NO_TITLE)
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window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)
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-
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setContentView(R.layout.activity_main)
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+//// 点击按钮Toast
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+// val button4 = findViewById<Button>(R.id.CONNECT)
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+// button4.setOnClickListener {
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+// Toast.makeText(this, "hello world!", Toast.LENGTH_LONG).show()
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+// }
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+
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+// 跳转BaseActivity
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+// val intent = Intent(this, BaseActivity().javaClass)
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+// startActivity(intent)
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+
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+ val connectBtn = findViewById<Button>(R.id.CONNECT)
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+
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+ connectBtn.setOnClickListener {
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+ bleScanHandler = Handler()
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+ //蓝牙管理，这是系统服务可以通过getSystemService(BLUETOOTH_SERVICE)的方法获取实例
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+ bleManager = getSystemService(Context.BLUETOOTH_SERVICE) as BluetoothManager
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+ //通过蓝牙管理实例获取适配器，然后通过扫描方法（scan）获取设备(device)
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+ bleAdapter = bleManager.adapter
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+ if (!bleAdapter.isEnabled) {
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+ val bluetoothTurnOn = Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE)
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+ startActivityForResult(bluetoothTurnOn, REQUEST_BLUETOOTH_TURN_ON)
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+ } else {
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+ bleStartScan.run()
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+ }
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+ }
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+ }
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+
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+ //start scan
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+ private val bleStartScan = Runnable {
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+ bleScanner = bleAdapter.bluetoothLeScanner
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+ bleScanCallback = BleScanCallback(bleScanResults)
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+ bleScanCallback.setContext(this.applicationContext)
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+ bleScanner.startScan(bleScanCallback)
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+ Toast.makeText(this.applicationContext, "蓝牙BLE扫描开始", Toast.LENGTH_SHORT).show()
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+ bleScanHandler.postDelayed(bleStopScan, this.BLE_SCAN_PERIOD)
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+ }
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+
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+ private val bleStopScan = Runnable {
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+ if (bleScanner != null) {
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+ bleScanner.stopScan(bleScanCallback)
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+ }
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+ Toast.makeText(this.applicationContext, "蓝牙BLE扫描结束", Toast.LENGTH_SHORT).show()
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+ }
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+
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+ class BleScanCallback(resultMap: MutableMap<String?, BluetoothDevice?>) : ScanCallback() {
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+ var resultOfScan = resultMap
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+ private var context: Context? = null
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+
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+ fun setContext(context: Context) {
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+ this.context = context
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+ }
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+
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+ override fun onScanResult(callbackType: Int, result: ScanResult?) {
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+ addScanResult(result)
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+ }
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+
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+ override fun onBatchScanResults(results: MutableList<ScanResult>?) {
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+ results?.forEach { result -> addScanResult(result) }
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+ }
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+
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+ override fun onScanFailed(errorCode: Int) {
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+ Toast.makeText(this.context, "蓝牙BLE扫描失败" + "Error Code: " + errorCode, Toast.LENGTH_SHORT).show()
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+ }
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+
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+ fun addScanResult(scanResult: ScanResult?) {
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+ val bleDevice = scanResult?.device
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+ val deviceAddress = bleDevice?.address
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+ if (!resultOfScan.contains(deviceAddress)) {
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+ resultOfScan.put(deviceAddress, bleDevice)
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+ if (this.context != null) {
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+ Toast.makeText(this.context, bleDevice?.name + ": " + bleDevice?.address, Toast.LENGTH_SHORT).show()
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+ }
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+ }
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+ }
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+ }
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+ override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
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+ super.onActivityResult(requestCode, resultCode, data)
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+ when (requestCode) {
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+ REQUEST_BLUETOOTH_TURN_ON -> {
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+ when (resultCode) {
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+ RESULT_OK -> {
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+ Toast.makeText(this.applicationContext, "蓝牙开启成功", Toast.LENGTH_SHORT).show()
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+ bleStartScan.run()
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+ }
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+ RESULT_CANCELED -> {
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+ Toast.makeText(this.applicationContext, "蓝牙开启失败", Toast.LENGTH_SHORT).show()
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+ }
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+ }
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+ }
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+ }
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}
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-}
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+}
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