Android onRequestPermissionsResult 未在片段中调用

Question

我正在使用谷歌地图，所以我需要询问一些permissions 。
我在Fragment的onStart()期间请求用户
我正在调用requestPermissions是因为我在一个片段中，并且我也按照本答案中的建议以及您在下面的代码中看到的那样调用了super.onRequestPermissionsResult 。
我已经放置了一些breakpoint和Log以 100% 确定onRequestPermissionsResult没有被调用。

class FindLessonFragment : BaseFragment(), OnMapReadyCallback, OnClusterItemClickListener<ClusterLesson>, OnClusterClickListener<ClusterLesson> {

    override fun onStart() {
        super.onStart()
    checkPermissions()
    }

    private fun checkPermissions() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            if (activity!!.checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED
                    || activity!!.checkSelfPermission(permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
                    || activity!!.checkSelfPermission(permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
                val builder = AlertDialog.Builder(activity!!)
                builder.setTitle("This app needs location access")
                builder.setMessage("Please grant location access so this app can work normally.")
                builder.setPositiveButton(android.R.string.ok, null)
                builder.setOnDismissListener {
                    requestPermissions(
                            arrayOf(permission.ACCESS_COARSE_LOCATION, permission.READ_EXTERNAL_STORAGE, permission.ACCESS_FINE_LOCATION),
                            PERMISSION_REQUEST_LOCATION)
                }
                builder.show()
            }
        }
    }

    override fun onRequestPermissionsResult(requestCode: Int, @NonNull permissions: Array<String>, @NonNull grantResults: IntArray) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
        Log.e("PERMISSIONRESULT", "PASS PERMISSION RESULT")
        when (requestCode) {
            BaseActivity.PERMISSION_REQUEST_LOCATION -> {
                if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    Log.d("BaseActivity", "coarse location permission granted")
                    onMapReady(mMap)
                } else {
                    val builder = AlertDialog.Builder(context!!)
                    builder.setTitle("Functionality limited")
                    builder.setMessage(
                            "Since location access has not been granted, this app will not be able to work correctly.")
                    builder.setPositiveButton(android.R.string.ok, null)
                    builder.setOnDismissListener { dialog -> dialog.dismiss() }
                    builder.show()
                }
            }
        }
    }

    companion object {

        fun create() = FindLessonFragment()

        internal const val PERMISSION_REQUEST_LOCATION = 1
    }

}

minSdkVersion 23

欢迎任何形式的帮助

Answer 1

该onRequestPermissionsResult必须抓在activty 。