intents.kt

private fun launchIntents(context: Context) {
    val whatsappIntent = getWhatsappIntent(context)
    val telegramIntent = getTelegramIntent(context)

    val intents = listOfNotNull(whatsappIntent, telegramIntent)

    val globalIntent = Intent()

    val chooserIntent = Intent.createChooser(globalIntent, "Send message")
        .putExtra(Intent.EXTRA_INITIAL_INTENTS, intents.toTypedArray())
    startActivity(chooserIntent)
}

private fun getWhatsappIntent(context: Context): Intent? = getAppIntent(
    context,
    "com.whatsapp",
    "Whatsapp message"
)

private fun getTelegramIntent(context: Context): Intent? = getAppIntent(
    context,
    "org.telegram.messenger",
    "Telegram message"
)

private fun getAppIntent(context: Context, packageName: String, text: String): Intent? {
    val pm: PackageManager = context.packageManager
    return try {
        val intent = Intent(Intent.ACTION_SEND)
        intent.type = "text/plain"
        pm.getPackageInfo(
            packageName,
            PackageManager.GET_META_DATA
        )
        //Check if package exists or not. If not then code
        //in catch block will be called
        intent.setPackage(packageName)
        intent.putExtra(Intent.EXTRA_TEXT, text)
        intent
    } catch (e: PackageManager.NameNotFoundException) {
        null
    }
}