Kotlin - 类型不匹配：推断的类型是 Unit，但 Intent 是预期的

Question

I'm very new to Kotlin and I'm getting an error stating Kotlin - Type mismatch: inferred type is Unit but Intent was expected and I'm unsure how to resolve this.

Any suggestions are appreciated.

Code Snippet:

  val webURL: String? = dataMap["uri"]
    val intent: Intent
    intent = if (!webURL.isNullOrEmpty()) {
        val intent = Intent(Intent.ACTION_VIEW, Uri.parse(webURL))
        intent.data = Uri.parse(webURL)
    } else {
        Intent(this, MainActivity::class.java)
    }

Note:

The error occurs on the line:

intent.data = Uri.parse(deeplinkURL)

Answer 1

val webURL: String? = dataMap["uri"]
val intent: Intent

intent = if (!webURL.isNullOrEmpty()) {
    Intent(Intent.ACTION_VIEW, Uri.parse(webURL))
} else {
    Intent(this, MainActivity::class.java)
}

If you are going to assign a value to a variable or property from an if / else expression, you need both the if and the else branches to evaluate to the desired type. And, you do not need to provide the Uri to the Intent twice.

Answer 2

如果条件为真，则不返回任何内容，只需在 else 之前添加intent行