<key>NSLocationTemporaryUsageDescriptionDictionary</key>
 <dict>
 <key> purposeKey </key>
 <string>This app needs accurate location so it can verify that you're in a supported region. </string>
 <key> AnotherPurposeKey </key>
 <string>This app needs accurate location so it can show you relevant results.</string>
</dict>

//参数 purposeKey 是在 info.plist 中设置NSLocationTemporaryUsageDescriptionDictionary 字典时候的key `
    CLLocationManager *manager = [[CLLocationManager alloc] init];
    manager.desiredAccuracy = kCLLocationAccuracyBest;
//    通过字段判断可以明确当前用户开启的定位，如果是模糊定位
//    申请精准定位
    if (@available(iOS 14.0, *)) {
        // -1
        if(    manager.accuracyAuthorization == CLAccuracyAuthorizationReducedAccuracy){
            if (@available(iOS 14.0, *)) {
                [manager requestTemporaryFullAccuracyAuthorizationWithPurposeKey:@"purposeKey4changeInfo" completion:^(NSError * _Nullable error) {
                    NSLog(@"%@", [NSString stringWithFormat:@"requestTemporaryFullAccuracyAuthorizationWithPurposeKey error%@",error]);
                }];
            } else {
                // Fallback on earlier versions
            }
        }
    } else {
        // Fallback on earlier versions
    }

*
CL_EXTERN const CLLocationAccuracy kCLLocationAccuracyBestForNavigation API_AVAILABLE(ios(4.0), macos(10.7));
CL_EXTERN const CLLocationAccuracy kCLLocationAccuracyBest;
CL_EXTERN const CLLocationAccuracy kCLLocationAccuracyNearestTenMeters;
CL_EXTERN const CLLocationAccuracy kCLLocationAccuracyHundredMeters;
CL_EXTERN const CLLocationAccuracy kCLLocationAccuracyKilometer;
CL_EXTERN const CLLocationAccuracy kCLLocationAccuracyThreeKilometers;
/*
 *  kCLLocationAccuracyReduced
 *
 *  Discussion:
 *    If you set your CLLocationManager's desiredAccuracy property to
 *    this value, locations delivered to your delegate in response to
 *    startUpdatingLocation or requestLocation will have their
 *    accuracy reduced.  The locations you receive will match the
 *    locations your app would have received if the user had decided
 *    not to grant your app authorization for precise location.
 */
CL_EXTERN const CLLocationAccuracy kCLLocationAccuracyReduced API_AVAILABLE(ios(14.0), macos(11.0), watchos(7.0), tvos(14.0));
locationManager = [[CLLocationManager alloc] init];
locationManager.desiredAccuracy = kCLLocationAccuracyReduced;

<key>NSLocationTemporaryUsageDescriptionDictionary</key>
     <dict>
     <key>purposeKey4changeInfo</key>
     <string>此app需要精确的定位信息，以便于更好的为你服务. </string>
    </dict>

if (@available(iOS 14.0, *)) {
        self.location.locationAccuracyMode = AMapLocationFullAndReduceAccuracy;
    } else {
        // Fallback on earlier versions
    }

/**
 *  @brief 当plist配置NSLocationTemporaryUsageDescriptionDictionary且desiredAccuracyMode设置CLAccuracyAuthorizationFullAccuracy精确定位模式时，如果用户只授权模糊定位，会调用代理的此方法。此方法实现调用申请临时精确定位权限API即可：
 *  [manager requestTemporaryFullAccuracyAuthorizationWithPurposeKey:@"PurposeKey" completion:^(NSError *error){
 *     if(completion){
 *        completion(error);
 *     }
 *  }]; (必须调用,不然无法正常获取临时精确定位权限)
 *  @param manager 定位 AMapLocationManager 类。
 *  @param locationManager 需要申请临时精确定位权限的locationManager。
 *  @param completion 临时精确定位权限API回调结果，error: 直接返回系统error即可。
 *  @since 2.6.7
 */
- (void)amapLocationManager:(AMapLocationManager *)manager doRequireTemporaryFullAccuracyAuth:(CLLocationManager*)locationManager completion:(void(^)(NSError *error))completion;
{
   if(@available(iOS 14.0,*)){
       [locationManager requestTemporaryFullAccuracyAuthorizationWithPurposeKey:@"purposeKey4changeInfo" completion:^(NSError * _Nullable error) {
          if(completion){
             completion(error);
          }
      }];
   }
}

/**
 记录当前是否向用户申请临时开启一次精确位置权限，用于【如果定位精度权限变更为精确的时候，再次更新定位信息】
 */
@property (assign, nonatomic) BOOL isrequestTemporaryFullAccuracyAuthorizationWithPurposeKey;
/**
 存储获取定位信息的回调
 */
@property (nonatomic, copy) AMapLocatingCompletionBlock block;
/**
 *  @brief 定位权限状态改变时回调函数。注意：iOS14及之后版本回调
 *  @param manager 定位 AMapLocationManager 类。
 *  @param locationManager  定位CLLocationManager类，可通过locationManager.authorizationStatus获取定位权限，通过locationManager.accuracyAuthorization获取定位精度权限
 */
- (void)amapLocationManager:(AMapLocationManager *)manager locationManagerDidChangeAuthorization:(CLLocationManager*)locationManager{
    //
//    - 如果定位精度权限变更为精确的时候，再次更新定位信息
    if (@available(iOS 14.0, *)) {
        if(    locationManager.accuracyAuthorization == CLAccuracyAuthorizationFullAccuracy){
            if(       self.isrequestTemporaryFullAccuracyAuthorizationWithPurposeKey == YES){
                self.isrequestTemporaryFullAccuracyAuthorizationWithPurposeKey = NO;
                [self.location requestLocationWithReGeocode:YES completionBlock:^(CLLocation *location, AMapLocationReGeocode *regeocode, NSError *error) {
                    [SVProgressHUD dismiss];
                    if(self.block){
                        self.block(location,regeocode,error);
                    }
                }];
            }
        }
    } else {
        // Fallback on earlier versions
    }
}