I am working on a launcher app project that I inherited. Now, I have to adjust the code to be compliance with Android R.

In my launcher I need to open programmatically file manager to show Downloads folder and I used:

val fileManagerDownloadIntent = Intent(Intent.ACTION_GET_CONTENT)
            val fileManagerDownloadUri = Uri.parse(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).path)
            fileManagerDownloadIntent.setDataAndType(fileManagerDownloadUri, "text/csv")

but Environment.getExternalStoragePublicDirectory is deprecated in R. How can I get path to the Downloads folder?

Hi, Mark. My question is about cast warnings.  In my hunt for common error handling, I have this sealed class: 
sealed class APIResult<out T : Any> {
    data class Success<out T : Any>(val data: T) : APIResult<T>()
    data class Error(val errorMessage: String) : APIResult<Nothing>()
}
 that I use on retrofit returns.  But I have to cast every return in the when block and get a cast warning: 
    val contentData : LoginUser = result.data as LoginUser
Any better way to handle it?

For example:

binder.root.setOnApplyWindowInsetsListener { _, insets ->
            // Add padding to bottom sheet
            val top = insets.systemWindowInsetTop
            val bottom = insets.systemWindowInsetBottom
            bottomSheet.setPadding(0, top, 0, if (bottom != 0) bottom else 30)
//..

The problem with that is my common processing function:     fun processResponse(response: Response<Any>) : APIResult<Any> {
where I check the retrofit response and make it success or error inside APIResult. So even if I knew how to pass in my class type of LoginUser for conversion, it'd sometimes not return that but Error object instead.