比较String Kotlin [英] Compare String Kotlin

问题描述

我正在学习kotlin，但我非常失望，我无法比较两个Strings.

I'm studying kotlin, but I'm very disappointed, I can not compare two Strings.

比较的正确方法是什么.

What is the right way to compare.

btn_login.setOnClickListener {
            val login = input_email.text.trim()
            val pass = input_password.text.trim()

            if( login.equals( pass ) ){
                startActivity<MainActivity>()
            }

            if (login?.equals(other = pass)){
                startActivity<MainActivity>()
            }

            if (login == pass){
                startActivity<MainActivity>()
            }

        }

推荐答案

根据文档对于结构相等，请使用==.它将翻译为a?.equals(b) ?: (b === null).

According to documentation for structual equality use ==. It is translated to a?.equals(b) ?: (b === null).

在这种情况下，请转换登录并将其从SpannableStringBuilder传递给String.

In you case convert login and pass from SpannableStringBuilder to String.

    val login = input_email.text.trim().toString()

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