iOS进阶iOS进阶知识iOS开发·地图与定位篇

IOS 百度地图定位,显示地理位置

2015-05-26  本文已影响18033人  Figo_OU

最近公司要做一个类似与美团的东西,让我用百度地图来进行定位,并显示地理信息.


预览图

那么我们要如何做呢,直接上代码

注意:appdelegate.mm 后缀一定要加个m

不然的话编译会不通过,好像是因为它的编译原理是c++还是怎样,要详细了解的可以百度.

    _locService = [[BMKLocationService alloc]init];//定位功能的初始化
    _locService.delegate = self;//设置代理位self
    //启动LocationService
    [_locService startUserLocationService];//启动定位服务
    _geocodesearch = [[BMKGeoCodeSearch alloc] init];
    //编码服务的初始化(就是获取经纬度,或者获取地理位置服务)
    _geocodesearch.delegate = self;//设置代理为self

这段代码需要放在viewDidLoad里面
启动定位服务后,_locService.userLocation.location.coordinate就应该会有值了,也就是说经度和纬度都可以获取出来了.

-(void)heheda:(UIButton *)btn{
    NSLog(@"进入普通定位态");
    NSLog(@"定位的经度:%f,定位的纬度:%f",_locService.userLocation.location.coordinate.longitude,_locService.userLocation.location.coordinate.latitude);
    self.lon.text = [NSString stringWithFormat:@"%f",_locService.userLocation.location.coordinate.longitude];
    [self.lat setText:[NSString stringWithFormat:@"%f",_locService.userLocation.location.coordinate.latitude]];
}
-(void)onClickReverseGeocode  //发送反编码请求的.
{
    isGeoSearch = false;
    CLLocationCoordinate2D pt = (CLLocationCoordinate2D){0, 0};//初始化
    if (_locService.userLocation.location.coordinate.longitude!= 0
        && _locService.userLocation.location.coordinate.latitude!= 0) {
        //如果还没有给pt赋值,那就将当前的经纬度赋值给pt
        pt = (CLLocationCoordinate2D){_locService.userLocation.location.coordinate.latitude,
            _locService.userLocation.location.coordinate.longitude};
    }
    BMKReverseGeoCodeOption *reverseGeocodeSearchOption = [[BMKReverseGeoCodeOption alloc]init];//初始化反编码请求
    reverseGeocodeSearchOption.reverseGeoPoint = pt;//设置反编码的店为pt
    BOOL flag = [_geocodesearch reverseGeoCode:reverseGeocodeSearchOption];//发送反编码请求.并返回是否成功
    if(flag)
    {
        NSLog(@"反geo检索发送成功");
    }
    else
    {
        NSLog(@"反geo检索发送失败");
    }
    
}
-(void) onGetReverseGeoCodeResult:(BMKGeoCodeSearch *)searcher result:(BMKReverseGeoCodeResult *)result errorCode:(BMKSearchErrorCode)error
{
       if (error == 0) {
        BMKPointAnnotation* item = [[BMKPointAnnotation alloc]init];
        item.coordinate = result.location;
        item.title = result.address;
        NSString* titleStr;
        NSString* showmeg;
        titleStr = @"反向地理编码";
        showmeg = [NSString stringWithFormat:@"%@",item.title];
           self.addr.text = showmeg;
        UIAlertView *myAlertView = [[UIAlertView alloc] initWithTitle:titleStr message:showmeg delegate:self cancelButtonTitle:nil otherButtonTitles:@"确定",nil];
        [myAlertView show];
    }
}
效果图
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