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Android で Email アドレスの判定をしてみた件

Android

Last updated at 2019-08-08Posted at 2019-08-07

方法

android.util.Patterns#EMAIL_ADDRESS の正規表現を用いて判定します

fun isEmailAddress(address: String) =
            if (address.isEmpty()) false
            else android.util.Patterns.EMAIL_ADDRESS.matcher(address).matches()

使用例

isEmailAddress("xxx@gmail.com") // true
isEmailAddress("090-0000-0000") // false

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