Filter out Intents you don"t want to show from a IntentChooser dialog. For example your own app, competing apps or just apps you have a share integration by SDK already :)Based on http://stackoverflow.com/questions/5734678/custom-filtering-of-intent-chooser-based-on-installed-android-package-name/8550043#8550043

intentChooser.kt

fun Intent.createChooserFiltered(context: Context, filter: (ResolveInfo) -> Boolean): Intent {
    val results = context.packageManager.queryIntentActivities(this, 0)
        .filter { filter(it) }
        .toMutableList()

    if (results.isNotEmpty()) {
        val intents = results.map {
            (this.clone() as Intent).apply {
                `package` = it.activityInfo.packageName
                setClassName(
                    it.activityInfo.packageName,
                    it.activityInfo.name
                )
            }
        }.toMutableList()

        val chooserIntent = Intent.createChooser(
            intents.removeAt(intents.size - 1), null
        )
        chooserIntent.putExtra(
            Intent.EXTRA_INITIAL_INTENTS,
            intents.toTypedArray()
        )

        return chooserIntent
    } else {
        return Intent.createChooser(this, null)
    }
}