Я уже искал проблему, что мой huawei p30 lite не обнаруживает другие устройства bluetooth. Я попробовал это на другом устройстве, и он работал, но я не понимаю, почему он не работает на моем huawei p30 lite.
Manifest. xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.notfallapp">
<uses-feature android:name="android.hardware.bluetooth" />
<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<application
android:allowBackup="true"
android:icon="@drawable/notfallapplogo"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/Theme.AppCompat.DayNight.NoActionBar">
<uses-library android:name="org.apache.http.legacy" android:required="false"/>
<!--
The API key for Google Maps-based APIs is defined as a string resource.
(See the file "res/values/google_maps_api.xml").
Note that the API key is linked to the encryption key used to sign the APK.
You need a different API key for each encryption key, including the release key that is used to
sign the APK for publishing.
You can define the keys for the debug and release targets in src/debug/ and src/release/.
-->
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="@string/google_maps_key" />
<activity
android:name=".menubar.MapActivity"
android:label="@string/title_activity_map"></activity>
<activity
android:name=".Login.LoginActivity"
android:screenOrientation="portrait"></activity>
<activity
android:name=".Login.SignUpActivity"
android:screenOrientation="portrait"></activity>
<activity
android:name=".MainActivity"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".menubar.contact.ContactActivity"
android:screenOrientation="portrait"></activity>
<activity
android:name=".menubar.contact.AddContactActivity"
android:screenOrientation="portrait" />
<activity
android:name=".menubar.AlarmsActivity"
android:screenOrientation="portrait"></activity>
<activity
android:name=".menubar.SettingsActivity"
android:screenOrientation="portrait"></activity>
<activity
android:name=".alarm.CallAlarmActivity"
android:screenOrientation="portrait"
android:persistent="true"/>
<activity
android:name=".alarm.AlarmCanceledActivity"
android:screenOrientation="portrait" />
<activity
android:name=".alarm.AlarmSuccesfulActivity"
android:screenOrientation="portrait" />
<activity android:name=".menubar.ChangeProfilActivity"></activity>
<activity android:name=".connectBracelet.AddBraceletActivity"
android:screenOrientation="portrait">
</activity>
<activity android:name=".menubar.ChangeProfilActivity">
</activity>
</application>
</manifest>
AddBraceletActivity .kt
package com.example.notfallapp.connectBracelet
import android.Manifest
import android.app.Activity
import android.bluetooth.BluetoothAdapter
import android.bluetooth.BluetoothDevice
import android.bluetooth.le.ScanCallback
import android.bluetooth.le.ScanResult
import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.content.IntentFilter
import android.content.pm.PackageManager
import android.os.AsyncTask
import android.os.Build
import android.os.Bundle
import android.os.Parcelable
import android.util.Log
import android.widget.*
import androidx.appcompat.app.AlertDialog
import androidx.core.app.ActivityCompat
import androidx.core.content.ContextCompat
import com.example.notfallapp.MainActivity
import com.example.notfallapp.R
import com.example.notfallapp.interfaces.ICreatingOnClickListener
class AddBraceletActivity : Activity(), ICreatingOnClickListener {
private lateinit var btnSos: Button
private lateinit var btnHome: ImageButton
private lateinit var btnContact: ImageButton
private lateinit var btnAlarms: ImageButton
private lateinit var btnMap: ImageButton
private lateinit var btnSettings: ImageButton
private lateinit var btnRetrySearching: Button
private lateinit var btnCancel: Button
private lateinit var tvConnectBracelet: TextView
private lateinit var lvDevices: ListView
private lateinit var builder: AlertDialog.Builder
private var bAdapter: BluetoothAdapter = BluetoothAdapter.getDefaultAdapter()
private lateinit var mReceiver: BroadcastReceiver
private var context = this
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_add_bracelet)
configureButtons()
initComponents()
btnCancel.setOnClickListener() {
Log.d("ButtonCancel", "Cancel Button was clicked in AddBraceletActivity")
sureDialog()
val alert = builder.create()
alert.show()
}
btnRetrySearching.setOnClickListener() {
Log.d("ButtonSearch", "Search Button was clicked in AddBraceletActivity")
searchDevices()
}
searchDevices()
}
private fun configureButtons() {
// SOS Button
btnSos = findViewById(R.id.btn_sos)
// Button bar
btnHome = findViewById(R.id.btnHome)
btnAlarms = findViewById(R.id.btnAlarms)
btnContact = findViewById(R.id.btnContact)
btnMap = findViewById(R.id.btnMap)
btnSettings = findViewById(R.id.btnSettings)
createOnClickListener(this, btnSos, btnHome, btnAlarms, btnContact, btnMap, btnSettings)
}
private fun initComponents() {
btnRetrySearching = findViewById(R.id.btn_retry_searching)
btnCancel = findViewById(R.id.btn_cancel_searching_device)
tvConnectBracelet = findViewById(R.id.tvConnectBracelet)
lvDevices = findViewById(R.id.lvDevices)
builder = AlertDialog.Builder(this)
mReceiver = object : BroadcastReceiver() {
override fun onReceive(context: Context, intent: Intent) {
System.out.println("Hello 2")
val action = intent.action
if (BluetoothAdapter.ACTION_DISCOVERY_STARTED == action) {
//discovery starts, we can show progress dialog or perform other tasks
} else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED == action) {
//discovery finishes, dismis progress dialog
} else if (BluetoothDevice.ACTION_FOUND == action) {
//bluetooth device found
val device =
intent.getParcelableExtra<Parcelable>(BluetoothDevice.EXTRA_DEVICE) as BluetoothDevice
val toast = Toast.makeText(context, "Found device " + device.name, Toast.LENGTH_LONG)
toast.show()
}
}
}
}
private fun searchDevices() {
//TODO search for Bluetooth devices.
Log.d("SearchDevices", "SearchDevices was called in AddBraceletActivity")
if (bAdapter == null) {
tvConnectBracelet.setError(getResources().getString(R.string.deviceNotSupportBluetooth))
return;
}
if (!bAdapter.isEnabled) {
val eintent = Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE)
startActivity(eintent)
}
val discoverableIntent: Intent = Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE).apply {
putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300)
}
startActivity(discoverableIntent)
if (bAdapter.isDiscovering){
bAdapter.cancelDiscovery()
}
/*val pairedDevices = bAdapter.bondedDevices
if (pairedDevices.size > 0) {
// There are paired devices. Get the name and address of each paired device.
for (device in pairedDevices) {
System.out.println(device.address)
}
}*/
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
Log.i("info", "No fine location permissions")
ActivityCompat.requestPermissions(this,
arrayOf(Manifest.permission.ACCESS_FINE_LOCATION),
1)
}
bAdapter.startDiscovery()
val onFoundFilter = IntentFilter(BluetoothDevice.ACTION_FOUND)
onFoundFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED)
onFoundFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED)
registerReceiver(mReceiver, onFoundFilter)
}
override fun onDestroy() {
bAdapter.cancelDiscovery()
unregisterReceiver(mReceiver);
super.onDestroy();
}
private fun sureDialog() {
builder.setTitle(getResources().getString(R.string.confirm))
builder.setMessage(getResources().getString(R.string.sureStopSearching))
builder.setPositiveButton(getResources().getString(R.string.Yes)) { dialog, which ->
var intent = Intent(this, MainActivity::class.java)
startActivity(intent)
dialog.dismiss()
}
builder.setNegativeButton(getResources().getString(R.string.No)) {dialog, which ->
dialog.dismiss()
}
}
}
Это мои файлы, для которых у меня есть разрешения и где я сканирую устройства Bluetooth. Большое спасибо за помощь!