myrickchow32

@objc func proximityStateDidChange(notification: Notification) {
  if let device = notification.object as? UIDevice {
    
    let currentProximityState = device.proximityState
    // true: user is close to the device; false: vice versa
    print("currentProximityState: \(currentProximityState ? "near" : "far")")
  }
}

myrickchow32

class SharingActivity : AppCompatActivity() {
  override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_sharing)
    val isActivityLaunchedFromActionSend = intent?.action == Intent.ACTION_SEND
    val isImageData = intent.type?.startsWith("image/") == true
    if (isActivityLaunchedFromActionSend && isImageData) {
      handleSendImage(intent)
    }
  }

myrickchow32

{
 "mAccurancy": 281.71,
 "mProvider": "gps"
 ...
}

myrickchow32

val insertCalendarIntent = Intent(Intent.ACTION_INSERT)
  .setData(CalendarContract.Events.CONTENT_URI)
  .putExtra(... , ...)
startActivity(insertCalendarIntent)

myrickchow32

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    ...
    android:id="@+id/backgroundFrameLayout"
    android:padding="16dp">

  <TextView
      ...

myrickchow32

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <size android:height="6dp"/>
</shape>

myrickchow32

  override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)    
    // Solution: Stop speaking to prevent blocking of ViewControler deinitialization
    avSpeechSynthesizer.stopSpeaking(at: .immediate)
  }
  

myrickchow32

import UIKit
import AVFoundation

class AVFoundataionDemoViewController: BaseViewController {
  var avSpeechSynthesizer: AVSpeechSynthesizer!
  
  override func viewDidLoad() {
    super.viewDidLoad()
    avSpeechSynthesizer = AVSpeechSynthesizer()
    avSpeechSynthesizer.speak(AVSpeechUtterance(string: "Hello world"))

myrickchow32

// Short form: en (English)
let voice = AVSpeechSynthesisVoice(language: "en")

// Long form: en-AU (Australia English)
let voice = AVSpeechSynthesisVoice(language: "en-AU")

myrickchow32

let avSpeechSynthesizer = AVSpeechSynthesizer()
... 
avSpeechSynthesizer.stopSpeaking(at: .immediate)