import android.R.attr
import android.annotation.SuppressLint
import android.app.StatusBarManager
import android.content.ComponentName
import android.content.Context
import android.content.Intent
import android.content.pm.PackageManager
import android.graphics.drawable.Icon
import android.net.Uri
import android.net.wifi.WifiManager
import android.os.Build
import android.os.Bundle
import android.provider.MediaStore
import android.widget.Button
import android.widget.ImageView
import android.widget.TextView
import android.widget.Toast
import androidx.activity.result.ActivityResultLauncher
import androidx.activity.result.contract.ActivityResultContracts
import androidx.appcompat.app.AppCompatActivity
import androidx.core.content.ContextCompat
import com.google.android.material.dialog.MaterialAlertDialogBuilder
import java.util.jar.Manifest
class MainActivity : AppCompatActivity() {
private lateinit var permissionLauncher: ActivityResultLauncher<String>
private lateinit var startHotspotBtn: Button
private lateinit var statusTV: TextView
private val wifiManager: WifiManager by lazy {
applicationContext.getSystemService(Context.WIFI_SERVICE) as WifiManager
}
@SuppressLint("WrongConstant")
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
permissionLauncher = registerForActivityResult(
ActivityResultContracts.RequestPermission()
) { isGranted: Boolean ->
if (isGranted) {
startHotSpot()
} else {
Toast.makeText(
this,
"Please allow the Nearby Wi-Fi Devices permission for this app",
Toast.LENGTH_LONG,
).show()
}
}
startHotspotBtn = findViewById(R.id.idBtnHotspot)
statusTV = findViewById(R.id.idTVHotspotStatue)
startHotspotBtn.setOnClickListener {
checkPermissions()
}
}
@SuppressLint("InlinedApi")
private fun checkPermissions() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
val permission: String = android.Manifest.permission.NEARBY_WIFI_DEVICES
when {
ContextCompat.checkSelfPermission(
this, permission,
) == PackageManager.PERMISSION_GRANTED -> {
startHotSpot()
}
shouldShowRequestPermissionRationale(permission) -> {
MaterialAlertDialogBuilder(this).setMessage("This app would not work without Nearby Wi-Fi Devices permission. Do you want to give this app the permission?")
.setPositiveButton("Yes") { _, _ ->
permissionLauncher.launch(permission)
}.setNegativeButton("No Thanks") { _, _ ->
}.show()
}
else -> {
permissionLauncher.launch(permission)
}
}
} else {
Toast.makeText(
this,
"Please use Android 13 device.",
Toast.LENGTH_SHORT,
).show()
}
}
@SuppressLint("NewApi")
private fun startHotSpot() {
wifiManager.startLocalOnlyHotspot(
object : WifiManager.LocalOnlyHotspotCallback() {
override fun onStarted(reservation: WifiManager.LocalOnlyHotspotReservation?) {
super.onStarted(reservation)
startHotspotBtn.isEnabled = false
statusTV.text = "Status Local Only Hotspot: STARTED"
}
override fun onFailed(reason: Int) {
super.onFailed(reason)
Toast.makeText(
this@MainActivity,
"Error Local Only Hotspot: $reason",
Toast.LENGTH_SHORT,
).show()
}
override fun onStopped() {
super.onStopped()
startHotspotBtn.isEnabled = true
statusTV.text = "Status Local Only Hotspot: STOPPED"
}
},
null,
)
}
}
