android - 类转换异常 : ApiException cannot be cast to RevolvableApiException after updating location library to 21 version

Question

我已将我的应用程序中的位置服务库更新到最新的 21 版本:
com.google.android.gms:play-services-location:21.0.0
它打破了在用户手机上启用位置设置的逻辑。

我找到了包含有关此过程的文档的更新页面: https://developers.google.com/android/reference/com/google/android/gms/location/SettingsClient ,
并使用下面的代码触发弹出窗口，该弹出窗口应要求用户允许在手机上启用位置访问:

val locationRequest = LocationRequest.Builder(Priority.PRIORITY_HIGH_ACCURACY, 10000)
                .setMinUpdateIntervalMillis(5000).build()

            val builder = LocationSettingsRequest.Builder().addLocationRequest(locationRequest)

            val client: SettingsClient = LocationServices.getSettingsClient(activity)
            val task: Task<LocationSettingsResponse> = client.checkLocationSettings(builder.build())
            task.addOnCompleteListener {
                try {
                    task.getResult(ApiException::class.java)
                } catch (exception: ApiException) {
                    when (exception.statusCode) {
                        LocationSettingsStatusCodes.RESOLUTION_REQUIRED -> {
                            try {
                                val resolvable = exception as ResolvableApiException
                                resolvable.startResolutionForResult(
                                    activity,
                                    1
                                )
                            } catch (e: Exception) {
                                e.printStackTrace()
                            }
                        }
                        LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE -> {
                           
                        }
                    }
                }
            }

但是文档中的代码在这一行抛出 ClassCastException:
val resolvable = exception as ResolvableApiException,
无法弄清楚如何处理最新的位置更新，在此先感谢您的帮助。

Answer 1

错误:异常 e 被实例化为“ApiException”，因此无法转换为 ResolveApiException(子类)。

e.getClass();//returnsString ApiException instead of ResolveApiException

可能的解决方法:使用 ResolvableApiException 构造函数，仅需要状态代码。

ResolvableApiException resolvable = new ResolvableApiException(exception.getStatus());
//use ResolvableApiException Constructor
//public ResolvableApiException (Status status)