Android Kotlin - Recyclerview 中的 registerForActivityResult

Question

我试过了：

val getUpdates = (context as Activity).registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
    if (result.resultCode == Activity.RESULT_OK && result.data != null) {

    }
}

在 RecyclerView 中得到：Unresolved reference: registerForActivityResult

在RecyclerView里面不可以吗？

Answer 1

您尝试执行的操作将导致崩溃。结果回调必须在 Activity 创建时注册（即作为 Activity 的 field/variable）

the callback must be unconditionally registered every time your activity is created, even if the logic of launching the other activity only happens based on user input or other business logic.

有关详细信息，请参阅 docs

Android Kotlin - Recyclerview 中的 registerForActivityResult

Android Kotlin - registerForActivityResult inside Recyclerview

android

android-intent

android-recyclerview