suzp1984

 private lazy var audioInputVolumeListener: AudioObjectPropertyListenerBlock = {
        return { _, _ in
            // report self.getDefaultAudioInputVolume()
        }
    }()

private func listenDefaultAudioInputVolume() {
        var audioVolumeAddr = AudioObjectPropertyAddress(
            mSelector: kAudioHardwareServiceDeviceProperty_VirtualMasterVolume,
            mScope: kAudioObjectPropertyScopeInput,

suzp1984

func getDefaultAudioInputVolume() -> Float32? {
        var audioVolumeAddr = AudioObjectPropertyAddress(
            mSelector: kAudioHardwareServiceDeviceProperty_VirtualMasterVolume,
            mScope: kAudioObjectPropertyScopeInput,
            mElement: kAudioObjectPropertyElementMaster
        )

        guard let audioInputDevice = getDefaultAudioInputDevice() else {
            return nil
        }

suzp1984

func listenDefaultAudioInputDeviceChanged() {
    var audioInputAddress = AudioObjectPropertyAddress(
      mSelector: kAudioHardwarePropertyDefaultInputDevice,
      mScope: kAudioObjectPropertyScopeGlobal,
      mElement: kAudioObjectPropertyElementMaster)
    
    let status = AudioObjectAddPropertyListenerBlock(AudioObjectID(kAudioObjectSystemObject),
                                                     &audioInputAddress, DispatchQueue.main) {
                                                     
                                                     inNumberAddress, inAddress in

suzp1984

func getDefaultAudioInputDevice() -> AudioDeviceID? {
    var audioInputDevice: AudioDeviceID = 0
    var audioInputAddress = AudioObjectPropertyAddress(
      mSelector: kAudioHardwarePropertyDefaultInputDevice,
      mScope: kAudioObjectPropertyScopeGlobal,
      mElement: kAudioObjectPropertyElementMaster)
    
    var propertySize = UInt32(MemoryLayout.size(ofValue: audioInputDevice))
  
    if AudioObjectGetPropertyData(AudioObjectID(kAudioObjectSystemObject),

suzp1984

buildscript {
    repositories {
        jcenter()
        google()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files

suzp1984

# Tip 1: Use the lastes Android Gradle plugin
buildscript {
    repositories {
       jcenter()
       maven { url 'http://maven.google.com' }
    }
    
    dependencies {
      classpath 'com.android.tools.build:gradle:3.0.0-alpha1'
    }

suzp1984

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)

    val box1 = findViewById(R.id.checkbox1)
    val box1Parent = findViewById(R.id.checkbox1_container)

    val box2 = findViewById(R.id.checkbox2)
    val box2Parent = findViewById(R.id.checkbox2_container)

suzp1984

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="io.github.suzp1984.delegatetouchdemo.MainActivity">
    
    <android.support.v7.widget.CardView
        android:id="@+id/box_container"

suzp1984

flipCardView.pivotX = 0.0f
flipCardView.pivotY = flipCardView.height / 2.0f

val animator = ObjectAnimator.ofFloat(flipCardView, "rotationY", startDeg, endDeg)
animator.setDuration(1000);
animator.interpolator = AccelerateInterpolator()
animator.start()

suzp1984

val animation = FlipAnimation(startAngor, endAngor, 0.0f, flipCardView.height / 2.0f)
animation.duration = 1000
animation.interpolator = AccelerateInterpolator()
animation.fillAfter = true
animation.setAnimationListener(object : Animation.AnimationListener {
              override fun onAnimationRepeat(animation: Animation?) {
              }

              override fun onAnimationEnd(animation: Animation?) {
                  // flipCardView.rotationY = endAngor