android-studio - Android工作室：找不到包androidx.activity.result

Question

我使用新方法注册已启动活动结果的回调

 activity.registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
        if (result.resultCode == Activity.RESULT_OK) {

        }
    }

但Android工作室抱怨结果包，因为它没有找到

构建.gradle

    compileSdkVersion 29
defaultConfig {
    applicationId "com.test.app"
    minSdkVersion 19
    targetSdkVersion 29
    versionCode 1
    versionName "1"
} implementation "androidx.activity:activity-ktx:1.1.0

标签： android-studiokotlinandroid-activityonactivityresult