从常用方法启动ActivityForResult时不会触发onActivityResult

Question

我正在编写一个电视和手机布局使用不同方法的应用程序，它们共享一些常用方法。我将常用方法放入一个单独的类中。在我调用通用方法之前，将“activity”传递给通用类，从通用方法中调用“startActivityForResult”。但是，finish() 不会在调用“Activity”时触发 onActivityResult()。

MainFragment.kt

class MainFragment : BrowseFragment() {
    override fun onActivityCreated(savedInstanceState: Bundle?) {
        super.onActivityCreated(savedInstanceState)

        TVHandler.activity = activity
    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        //not triggered    
    }
}

TVHandler.kt

import androidx.core.app.ActivityCompat.startActivityForResult
class TVHandler{
    fun play(item: Movie, extra_url: String = ""){    
                val intent = Intent(activity, PlaybackActivity::class.java)
                intent.putExtra("item", item)
                intent.putExtra("url", url)
                startActivityForResult(activity, intent, 0, null)
    }

    companion object {
        lateinit var activity: Activity
    }
}

PlaybackActivity.kt

class PlaybackActivity : FragmentActivity() {
    fun channelSwitch(direction: String, showMessage: Boolean){
        val intent = Intent()
        intent.putExtra("action", "switch")
        intent.putExtra("direction", direction)
        intent.putExtra("showMessage", showMessage)
        this.setResult(Activity.RESULT_OK, intent)
        finish()
    }
}

play() 被调用。一些动作触发了 ChannelSwitch()。但是，不会触发 onActivityResult()。显示 MainActivity，没有记录任何错误。我可以知道如何修改它以使其工作吗？

Answer 1

将onActivityResult 放入托管片段的活动中，以便它可以将值传递给您的片段

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)
}