本工程为基于高德地图iOS 定位SDK进行封装，实现了单次定位功能和连续定位功能。

前述

• 高德官网申请Key.
• 阅读开发指南.
• 工程基于iOS 定位SDK实现.

功能描述

演示定位SDK的单次定位功能和连续定位功能。

核心类/接口

类	接口	说明	版本
AMapLocationManager	- (BOOL)requestLocationWithReGeocode:(BOOL)withReGeocode completionBlock:(AMapLocatingCompletionBlock)completionBlock;	单次定位接口	v2.0.0
AMapLocationManager	- (void)startUpdatingLocation;	连续定位接口	v2.0.0

核心难点

Objective-C

/* 单次定位. */
- (void)initCompleteBlock
{
    __weak SingleSerialLocaitonViewController *weakSelf = self;
    self.completionBlock = ^(CLLocation *location, AMapLocationReGeocode *regeocode, NSError *error)
    {
        if (error)
        {
            NSLog(@"locError:{%ld - %@};", (long)error.code, error.localizedDescription);
            
            [weakSelf.singleLocInfoLabel setText:[NSString stringWithFormat:@"locError:{%ld - %@};", (long)error.code, error.localizedDescription]];
            
            return;
        }
        
        //得到定位信息
        if (location)
        {
            [weakSelf updateLabelTextWithLocation:location regeocode:regeocode serial:NO];
        }
    };
}

/* 进行单次定位 */
[self.locationManager requestLocationWithReGeocode:YES completionBlock:self.completionBlock];

/* 连续定位回调. */
- (void)amapLocationManager:(AMapLocationManager *)manager didUpdateLocation:(CLLocation *)location reGeocode:(AMapLocationReGeocode *)reGeocode
{
    NSLog(@"location:{lat:%f; lon:%f; accuracy:%f}", location.coordinate.latitude, location.coordinate.longitude, location.horizontalAccuracy);
    
    //记录定位次数
    self.locateCount += 1;
    
    [self updateLabelTextWithLocation:location regeocode:reGeocode serial:YES];
}

Swift

/* 单次定位. */
func configCompletionBlock() {
        self.completionBlock = { [weak self] (location, regeo, error) -> Void in
            if error != nil {
                print("locError: %@", error!.localizedDescription)
                self?.singleLocInfoLabel.text = String(format: "locError: %@", error!.localizedDescription)
                return
            }
            
            if location != nil {
                self?.updateLabelWithLocation(location, regeocode: regeo, isSerial: false)
            }
        }
}

/* 连续定位回调. */
func amapLocationManager(_ manager: AMapLocationManager!, didUpdate location: CLLocation!, reGeocode: AMapLocationReGeocode!) {
        print("Location:\(location)")
        
        self.locateCount += 1
        updateLabelWithLocation(location, regeocode: reGeocode, isSerial: true)
        
}