email.kt

fun emailAppIntent() {
        val emailIntent = Intent(Intent.ACTION_VIEW, Uri.parse("mailto:"))
        val packageManager = packageManager

        val activitiesHandlingEmails = packageManager.queryIntentActivities(emailIntent, 0)
        if (activitiesHandlingEmails.isNotEmpty()) {
            // use the first email package to create the chooserIntent
            val firstEmailPackageName = activitiesHandlingEmails.first().activityInfo.packageName
            val firstEmailInboxIntent = packageManager.getLaunchIntentForPackage(firstEmailPackageName)
            val emailAppChooserIntent = Intent.createChooser(firstEmailInboxIntent, "")

            // created UI for other email packages and add them to the chooser
            val emailInboxIntents = mutableListOf<LabeledIntent>()
            for (i in 1 until activitiesHandlingEmails.size) {
                val activityHandlingEmail = activitiesHandlingEmails[i]
                val packageName = activityHandlingEmail.activityInfo.packageName
                val intent = packageManager.getLaunchIntentForPackage(packageName)
                emailInboxIntents.add(
                    LabeledIntent(
                        intent,
                        packageName,
                        activityHandlingEmail.loadLabel(packageManager),
                        activityHandlingEmail.icon
                    )
                )
            }
            val extraEmailInboxIntents = emailInboxIntents.toTypedArray()
            val finalIntent = emailAppChooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, extraEmailInboxIntents)
            startActivity(finalIntent);
        } else {
            //todo
        }
    }