Kotlin Programming Cookbook

How it works…

Let's take a look at its implementation:

fun Context.email(email: String, subject: String = "", text: String = ""): Boolean {    val intent = Intent(Intent.ACTION_SENDTO)    intent.data = Uri.parse("mailto:")    intent.putExtra(Intent.EXTRA_EMAIL, arrayOf(email))    if (subject.isNotEmpty())        intent.putExtra(Intent.EXTRA_SUBJECT, subject)    if (text.isNotEmpty())        intent.putExtra(Intent.EXTRA_TEXT, text)    if (intent.resolveActivity(packageManager) != null) {        startActivity(intent)        return true    }    return false}

As you can see, it checks for the extra data, such as the subject and message body, and then launches the email application. The email function provided by Anko is just a convenient method that reduces your line of code and makes your code ...