iOS关于高德地图定位和热点搜索使用小结

　　最近项目刚刚忙完，有空整理一下用到的相关技术点。地图是比较常见的功能模块，现在用的比较多的是地图当前位置显示，公交、骑行、步行路线信息，附近热点位置搜索。现在国内用的比较多的是高德、百度，国外的话可以用谷歌、腾讯。路线信息的内容之前博文里面有所提及，本文以高德地图为例，主要介绍一下其他两点。

　　1、pod导入相应的地图库,添加引用和协议

　　    #import <MAMapKit/MAMapKit.h>

#import <AMapFoundationKit/AMapFoundationKit.h>

#import <AMapLocationKit/AMapLocationKit.h>

#import <AMapSearchKit/AMapSearchKit.h>

　　    <MAMapViewDelegate,AMapLocationManagerDelegate,AMapSearchDelegate>

　　2、定义地图、地图管理变量，热点搜索，经纬度信息变量

　　

/**

高德地图

*/

@property (nonatomic,strong) MAMapView *mapView;

/**

定位管理

*/

@property (nonatomic,strong) AMapLocationManager *locService;

/**

用户当前位置

*/

@property (nonatomic,strong) MAPointAnnotation *curAnnotation;

/**

周边检索

*/

@property (nonatomic,strong) AMapSearchAPI *poiSearch;

/**

周边检索条件

*/

@property (nonatomic,strong) AMapPOIAroundSearchRequest *placeAround;

　　3、实例化相关变量，并开启定位

　　

-(void)viewWillAppear:(BOOL)animated{

[super viewWillAppear:animated];

self.mapView.delegate    = self;

self.locService.delegate = self;

self.poiSearch.delegate  = self;

}

-(void)viewWillDisappear:(BOOL)animated{

[super viewWillDisappear:animated];

[self.mapView removeAnnotation:self.curAnnotation];

self.curAnnotation = nil;

self.mapView.delegate    = nil;

self.locService.delegate = nil;

self.poiSearch.delegate  = nil;

}

-(void)viewDidAppear:(BOOL)animated{

[super viewDidAppear:animated];

//    self.locService.delegate = self;

[self.locService startUpdatingLocation];

}

#pragma mark - 懒加载

-(MAMapView *)mapView{

if (!_mapView) {

_mapView = [[MAMapView alloc]initWithFrame:self.mapBackView.bounds];

[_mapView setMapType:MAMapTypeStandard];

_mapView.showsCompass = NO;

[_mapView setZoomLevel:16];

}

return _mapView;

}

-(AMapLocationManager *)locService{

if (!_locService) {

_locService = [[AMapLocationManager alloc] init];

//设置不允许系统暂停定位

[_locService setPausesLocationUpdatesAutomatically:NO];

//设置允许在后台定位

[_locService setAllowsBackgroundLocationUpdates:YES];

//设置允许连续定位逆地理

[_locService setLocatingWithReGeocode:YES];

}

return _locService;

}

-(AMapSearchAPI *)poiSearch{

if (!_poiSearch) {

_poiSearch = [[AMapSearchAPI alloc]init];

}

return _poiSearch;

}

-(AMapPOIAroundSearchRequest *)placeAround{

if (!_placeAround) {

_placeAround = [[AMapPOIAroundSearchRequest alloc]init];

_placeAround.radius = 1500;

_placeAround.offset = 10;

_placeAround.keywords = @"";

_placeAround.sortrule            = 0;

_placeAround.requireExtension    = YES;

_placeAround.types = @"220000|070700|120000|110000|160000|060000|170000|130000|150900|080304|141200";

//,事物,会议,大厦,公寓,广场,银行,商场,学校,停车场,酒吧

}

return _placeAround;

}

-(void)viewDidLoad {

[super viewDidLoad];

[AMapServices sharedServices].enableHTTPS = YES;

[self createSubviews];

}

　　4、地图位置解析，设置地图上的当前经纬度信息，然后关闭定位，搜索周边热点位置

　　

-(void)amapLocationManager:(AMapLocationManager *)manager didUpdateLocation:(CLLocation *)location reGeocode:(AMapLocationReGeocode *)reGeocode{

if (location) {

CLGeocoder *geocoder = [[CLGeocoder alloc] init];

WS(weakSelf)

[geocoder reverseGeocodeLocation:[[CLLocation alloc] initWithLatitude:location.coordinate.latitude longitude:location.coordinate.longitude] completionHandler:^(NSArray *placemarks, NSError *error){

if (error) {

weakSelf.errorLabel.hidden = NO;

[CCErrorView showErrorWithText:K_CC_LOCAL_STR(@"location.error")];

}else{

if (placemarks.count>0) {

if (weakSelf.curAnnotation) {

[weakSelf.mapView removeAnnotation:weakSelf.curAnnotation];

weakSelf.curAnnotation = nil;

}

weakSelf.errorLabel.hidden = YES;

weakSelf.curAnnotation = [[MAPointAnnotation alloc]init];

weakSelf.curAnnotation.coordinate = location.coordinate;

CLPlacemark *placemark = [placemarks objectAtIndex:0];

NSDictionary *addressDic = placemark.addressDictionary;

NSString *address = [[addressDic objectForKey:@"FormattedAddressLines"] firstObject];

if (K_CC_EMPTY_STR(address)) {

address = @"";

}

if (!K_CC_EMPTY_STR(addressDic[@"Country"])) {

address = [address stringByReplacingOccurrencesOfString:[addressDic objectForKey:@"Country"]  withString:@""];

}

weakSelf.curAnnotation.title = address;

weakSelf.curStreet = [addressDic objectForKey:@"Name"];

weakSelf.curProvince = [addressDic objectForKey:@"State"];

weakSelf.curCity = [addressDic objectForKey:@"City"];

weakSelf.curArea = [addressDic objectForKey:@"SubLocality"];

[weakSelf.datalist removeAllObjects];

CCSignInModel *model = [[CCSignInModel alloc]init];

model.name = [addressDic objectForKey:@"Name"];

model.address = address;

model.location =location.coordinate;

model.curCity = [addressDic objectForKey:@"City"];

model.curArea = [addressDic objectForKey:@"SubLocality"];

model.curStreet = [addressDic objectForKey:@"Name"];

[weakSelf.datalist addObject:model];

weakSelf.curModel = model;

[weakSelf.listTableView reloadData];

}else{

weakSelf.errorLabel.hidden = NO;

[CCErrorView showErrorWithText:K_CC_LOCAL_STR(@"location.error")];

}

[weakSelf.mapView setCenterCoordinate:location.coordinate animated:NO];

[weakSelf.mapView addAnnotation:weakSelf.curAnnotation];

[weakSelf.mapView selectAnnotation:weakSelf.curAnnotation animated:YES];

[weakSelf.locService stopUpdatingLocation];

AMapGeoPoint *centerPoint = [AMapGeoPoint locationWithLatitude:location.coordinate.latitude longitude:location.coordinate.longitude];

[weakSelf.placeAround setLocation:centerPoint];

[weakSelf.poiSearch AMapPOIAroundSearch:weakSelf.placeAround];

}

}];

}else{

self.errorLabel.hidden = NO;

}

}

#pragma mark - AMapSearchDelegate

-(void)AMapSearchRequest:(id)request didFailWithError:(NSError *)error

{

NSLog(@"Error: %@ ", error);

if (self.datalist.count>0 && self.placeAround.page!=1) {

[self.listTableView.mj_footer endRefreshingWithNoMoreData];

}

[self.listTableView reloadData];

}

-(void)onPOISearchDone:(AMapPOISearchBaseRequest *)request response:(AMapPOISearchResponse *)response

{

[self.listTableView.mj_footer endRefreshing];

if (response.pois.count>0) {

for (AMapCloudPOI *info in response.pois) {

CCSignInModel *model = [[CCSignInModel alloc]init];

model.name     = info.name;

model.address  = info.address;

model.curCity = self.curCity;

model.curArea = self.curArea;

model.curStreet = self.curStreet;

model.location = CLLocationCoordinate2DMake(info.location.latitude,info.location.longitude);

[self.datalist addObject:model];

}

if (response.pois.count == 10 && self.placeAround.page == 1) {

@K_CC_WEAK(self)

self.listTableView.mj_footer = [MJRefreshAutoNormalFooter footerWithRefreshingBlock:^{

@K_CC_STRONG(self)

self.placeAround.page++;

[self.poiSearch AMapPOIAroundSearch:self.placeAround];

}];

}else if(response.pois.count < 10 && self.placeAround.page != 1){

[self.listTableView.mj_footer endRefreshingWithNoMoreData];

}

}else{

if (self.placeAround.page == 1 && self.datalist.count == 0) {

[CCNoDataView nodataViewShowWithTableView:self.listTableView isShow:YES];

}

}

[self.listTableView reloadData];

}