:core:android/dev.atick.core.extensions/isEmailValid

isEmailValid

Validates if this string is a properly formatted email address.

Uses Android's built-in Patterns.EMAIL_ADDRESS for validation, which checks for:

Proper email format (local-part@domain)
Valid characters in local and domain parts
At least one dot in the domain

Usage Examples

// In a ViewModel - validate user input
fun validateEmail(email: String): Boolean {
    return email.isEmailValid()
}

// In a Composable - show error state
var email by remember { mutableStateOf("") }
var isError by remember { mutableStateOf(false) }

OutlinedTextField(
    value = email,
    onValueChange = {
        email = it
        isError = !it.isEmailValid()
    },
    isError = isError,
    label = { Text("Email") }
)

// Null-safe usage
val userEmail: String? = getUserEmail()
if (userEmail.isEmailValid()) {
    sendEmail(userEmail!!)
}

Valid Examples

"user@example.com" → true
"john.doe@company.co.uk" → true
"test+filter@gmail.com" → true

Invalid Examples

null → false
"" → false
"notanemail" → false
"@example.com" → false
"user@" → false

Receiver

String? The email string to validate (can be null).

Return

true if the string is a valid email address, false otherwise (including null/empty).