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object DistanceCalculations {

    fun CalculationByDistance(StartP: LatLng, EndP: LatLng): Double {
        val Radius = 6371 // radius of earth in Km
        val lat1 = StartP.latitude
        val lat2 = EndP.latitude
        val lon1 = StartP.longitude
        val lon2 = EndP.longitude
        val dLat = Math.toRadians(lat2 - lat1)
        val dLon = Math.toRadians(lon2 - lon1)

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object RandomIntGenerator {
    fun generate(): Int {
        val rnd = Random()
        val number = rnd.nextInt(999999)
        return number
    }
}

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class MyFireBaseMessagingService : FirebaseMessagingService() {
    var mtitle: String? = null
    var mmessage: String? = null

    override fun onMessageReceived(remoteMessage: RemoteMessage) {
        super.onMessageReceived(remoteMessage)
        mtitle = remoteMessage.data["title"]
        mmessage = remoteMessage.data["message"]
        showNotificationMessage(mtitle, mmessage)
    }

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        val textView = findViewById<TextView>(R.id.textview)

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            textView.text = Html.fromHtml(readTxt(), Html.FROM_HTML_MODE_LEGACY)

        } else {
            textView.text = HtmlCompat.fromHtml(readTxt()!!, HtmlCompat.FROM_HTML_MODE_LEGACY)
        }

    }

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  fun saveImageToGallery(context: Context, fileName: String, photoView: PhotoView) {
        val bitmapDrawable = photoView.drawable as BitmapDrawable
        val bitmap = bitmapDrawable.bitmap
        val filename = String.format("%s.png", fileName)
        if (Build.VERSION.SDK_INT >= 29) {
            val values = contentValues(filename)
            values.put(MediaStore.Images.Media.RELATIVE_PATH, Environment.DIRECTORY_PICTURES + "/" + "YOUR_FOLDER_NAME")
            values.put(MediaStore.Images.Media.IS_PENDING, true)
            // RELATIVE_PATH and IS_PENDING are introduced in API 29.

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fun readHtmlFile(section: String, fileName: String, context: Context): String? {
    val returnString = StringBuilder()
    var fIn: InputStream? = null
    var isr: InputStreamReader? = null
    var input: BufferedReader? = null
    try {
        fIn = context.resources.assets
                .open(section + fileName)
        isr = InputStreamReader(fIn)
        input = BufferedReader(isr)

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/*
*  Microphone Item click to record
*/
yourmicrophoneuicon.setOnClickListener {
            // Get the Intent action
            val sttIntent = Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH)
            // Language model defines the purpose, there are special models for other use cases, like search.
            sttIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM)
            // Adding an extra language, you can use any language from the Locale class.
            sttIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault())

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  val options = arrayOf<CharSequence>("Share", "Copy URL","Cancel")
            val builder = AlertDialog.Builder(this)
            builder.setTitle("")
            builder.setCancelable(false)
            builder.setItems(options) { dialog: DialogInterface, item: Int ->
                if (options[item].equals("Share")) {
                    val intent = Intent(Intent.ACTION_SEND)
                    intent.type = "text/plain"
                    intent.putExtra(Intent.EXTRA_TEXT, YOUR_LINK)
                    startActivity(Intent.createChooser(intent, "Share"))

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   fun printKeyHash(context: Activity): String? {
        val packageInfo: PackageInfo
        var key: String? = null
        try {
             //getting application package name, as defined in manifest
            val packageName = context.applicationContext.packageName

            //Retriving package info
            packageInfo = context.packageManager.getPackageInfo(packageName,
                    PackageManager.GET_SIGNATURES)

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inline fun getYoutubevideidfromurl(youtubeurl: String) : String?
{
if (youtubeurl.toLowerCase().contains("youtu.be")){
return youtubeurl.substring(youtubeurl.lastIndexOf("/") + 1)
}
val pattern = "(?<=youtu.be/|watch\\?v=|/videos/|embed\\/)[^#\\&\\?]*"
val compiledPattern: Pattern = Pattern.compile(pattern)
val matcher: Matcher = compiledPattern.matcher(youtubeurl)
return if (matcher.find()) {
matcher.group()