项目需要实现仿微信朋友圈可定位、搜索附近位置的功能：
实现方法
第1步，集成SDK（这里使用 CocoaPods 安装）
pod 'AMapSearch' #地图SDK搜索功能pod 'AMapLocation' #定位SDK
第2步，引入头文件
#import <AMapFoundationKit/AMapFoundationKit.h>#import <AMapLocationKit/AMapLocationKit.h>#import <AMapSearchKit/AMapSearchKit.h>
第3步，配置Key
在调用定位时，需要添加Key，需要注意的是请在 SDK 任何类的初始化以及方法调用之前设置正确的 Key。
[AMapServices sharedServices].apiKey = @"b5a84655e2cef54d488e990287d26bb9";
第4步，更改info.plist
在info.plist的字段添加定位权限的申请，配置方式请参考手动部署部分说明。
第5步，配置后台定位
第6步，代码实现
#import "SearchSitesController.h"@interface SearchSitesController () <UITextFieldDelegate,AMapLocationManagerDelegate,AMapSearchDelegate>@property (nonatomic,strong) UITextField *searchTxt;//搜索框@property (nonatomic,assign) BOOL isSearchAround;@property (nonatomic,strong) NSMutableArray *addressArray;//搜索到的地址数组@property (nonatomic,strong) AMapLocationManager *locationManager;//定位管理@property (nonatomic,strong) AMapSearchAPI *searchAPI;//搜索类@property (nonatomic,strong) CLLocation *location;//当前定位的位置@property (nonatomic,copy) NSString *currentCity;//当前城市@end@implementation SearchSitesController#pragma mark - 懒加载- (NSMutableArray *)addressArray{if (!_addressArray) {_addressArray = [NSMutableArray array];}return _addressArray;}- (AMapLocationManager *)locationManager{if (!_locationManager) {_locationManager = [[AMapLocationManager alloc] init];[_locationManager setDelegate:self];[_locationManager setAllowsBackgroundLocationUpdates:YES];//iOS 9（不包含iOS 9） 之前设置允许后台定位参数，保持不会被系统挂起[_locationManager setPausesLocationUpdatesAutomatically:NO];//iOS 9（包含iOS 9）之后新特性：将允许出现这种场景，同一app中多个locationmanager：一些只能在前台定位，另一些可在后台定位，并可随时禁止其后台定位。if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 9) {_locationManager.allowsBackgroundLocationUpdates = YES;}}return _locationManager;}- (AMapSearchAPI *)searchAPI{if (!_searchAPI) {_searchAPI = [[AMapSearchAPI alloc] init];_searchAPI.delegate = self;}return _searchAPI;}- (void)viewDidLoad {[super viewDidLoad];// Do any additional setup after loading the view from its nib.self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:nil style:UIBarButtonItemStylePlain target:nil action:nil];//搜索框_searchTxt = [HELPER textFieldWithSuperView:self.view textAlignment:NSTextAlignmentLeft fontSize:14 textColor:TITLE_BLACK backgroundColor:RGB(243, 244, 246) placeholder:@"搜索地点" placeholderColor:PLACEHOLDER_COLOR placeholderFont:14 andMasonryBlock:^(MASConstraintMaker * _Nonnull make) {make.left.equalTo(@11);make.right.equalTo(@-55);make.height.equalTo(@31);make.top.equalTo(@(10));}];_searchTxt.delegate = self;_searchTxt.layer.cornerRadius = 31/2;_searchTxt.layer.masksToBounds = YES;_searchTxt.clearButtonMode = UITextFieldViewModeWhileEditing;_searchTxt.leftView = [[UIView alloc]initWithFrame:FRAME(0, 0, 35, 35)];_searchTxt.leftViewMode = UITextFieldViewModeAlways;[HELPER imageViewWithSuperView:_searchTxt.leftView backgroundColor:COLOR(clearColor) image:IMG(@"icon_search") andMasonryBlock:^(MASConstraintMaker * _Nonnull make) {make.center.equalTo(self.searchTxt.leftView);}];[_searchTxt addTarget:self action:@selector(textFieldValueChanged:) forControlEvents:UIControlEventEditingChanged];//取消按钮[HELPER buttonWithSuperView:self.view andNormalTitle:@"取消" andNormalTextColor:PLACEHOLDER_COLOR andTextFont:16 andNormalImage:nil andCornerRadius:0 backgroundColor:COLOR(clearColor) addTarget:self action:@selector(cancelAction:) forControlEvents:UIControlEventTouchUpInside andMasonryBlock:^(MASConstraintMaker * _Nonnull make) {make.centerY.equalTo(self.searchTxt.mas_centerY);make.left.equalTo(self.searchTxt.mas_right).offset(5);make.right.equalTo(@-5);}];//分割线[HELPER imageViewWithSuperView:self.view backgroundColor:COLOR(groupTableViewBackgroundColor) image:nil andMasonryBlock:^(MASConstraintMaker * _Nonnull make) {make.height.equalTo(@1);make.left.right.equalTo(@0);make.top.equalTo(self.searchTxt.mas_bottom).offset(10);}];//设置tableViewself.mainTableView = [self tableViewWithSuperView:self.view style:UITableViewStylePlain backgroundColor:COLOR(clearColor) target:self andMasonryBlock:^(MASConstraintMaker * _Nonnull make) {make.left.right.bottom.equalTo(@0);make.top.equalTo(self.searchTxt.mas_bottom).offset(11);}];self.mainTableView.separatorStyle = UITableViewCellSeparatorStyleSingleLine;self.mainTableView.separatorColor = COLOR(groupTableViewBackgroundColor);//开始定位[self.locationManager startUpdatingLocation];}#pragma mark - 点击取消按钮- (void)cancelAction:(UIButton *)sender{[self.navigationController popViewControllerAnimated:YES];}#pragma mark - AMapLocationManagerDelegate/* 当定位发生错误时，会调用代理的此方法 */- (void)amapLocationManager:(AMapLocationManager *)manager didFailWithError:(NSError *)error{//定位错误LOG(@"定位❌error = %@",error);}/* 位置更新回调 */- (void)amapLocationManager:(AMapLocationManager *)manager didUpdateLocation:(CLLocation *)location{//经纬度LOG(@"location:{lat:%f; lon:%f}", location.coordinate.latitude, location.coordinate.longitude);self.location = location;//逆地理编码[self reGoecodeWithLocation:location];//发起周边搜索[self searchAroundWithKeywords:nil];//停止定位[self.locationManager stopUpdatingLocation];}//逆地理编码- (void)reGoecodeWithLocation:(CLLocation *)location{AMapReGeocodeSearchRequest *request = [[AMapReGeocodeSearchRequest alloc] init];request.location =[AMapGeoPoint locationWithLatitude:location.coordinate.latitude longitude:location.coordinate.longitude];[self.searchAPI AMapReGoecodeSearch:request];}//根据定位坐标或关键字进行周边搜索- (void)searchAroundWithKeywords:(NSString *)keywords{if (keywords.length == 0) { //未输入关键字，则为POI周边搜索self.isSearchAround = YES;//构造AMapPOIAroundSearchRequest对象，设置周边搜索参数AMapPOIAroundSearchRequest *request = [[AMapPOIAroundSearchRequest alloc] init];request.location = [AMapGeoPoint locationWithLatitude:self.location.coordinate.latitude longitude:self.location.coordinate.longitude];//types属性表示限定搜索POI的类别，默认为：餐饮服务|商务住宅|生活服务//POI的类型共分为20种大类别request.types = @"汽车服务|汽车销售|汽车维修|摩托车服务|餐饮服务|购物服务|生活服务|体育休闲服务|医疗保健服务|住宿服务|风景名胜|商务住宅|政府机构及社会团体|科教文化服务|交通设施服务|金融保险服务|公司企业|道路附属设施|地名地址信息|公共设施";request.sortrule = 0;request.requireExtension = YES;//发起周边搜索请求[self.searchAPI AMapPOIAroundSearch:request];}else{ //输入了关键字，则为搜索提示请求self.isSearchAround = NO;AMapInputTipsSearchRequest *tipsRequest = [[AMapInputTipsSearchRequest alloc] init];tipsRequest.city = self.currentCity;//查询城市默认为当前定位的城市tipsRequest.keywords = keywords;[self.searchAPI AMapInputTipsSearch:tipsRequest];}}#pragma mark - AMapSearchDelegate/* 逆地理编码查询回调函数 */- (void)onReGeocodeSearchDone:(AMapReGeocodeSearchRequest *)request response:(AMapReGeocodeSearchResponse *)response{self.currentCity = response.regeocode.addressComponent.city;if (self.currentCity.length == 0) {self.currentCity = response.regeocode.addressComponent.province;}LOG(@"当前定位城市 = %@",self.currentCity);}/* 实现POI搜索对应的回调函数 */- (void)onPOISearchDone:(AMapPOISearchBaseRequest *)request response:(AMapPOISearchResponse *)response{[self.addressArray removeAllObjects];if (response.pois.count>0) {//将搜索出的POI结果保存到数组[self.addressArray addObjectsFromArray:response.pois];}else{[self.mainTableView tableViewShowMessage:@"无结果" forDataCount:0];}[self.mainTableView reloadData];}/* 输入提示查询回调函数 */- (void)onInputTipsSearchDone:(AMapInputTipsSearchRequest *)request response:(AMapInputTipsSearchResponse *)response{[self.addressArray removeAllObjects];if (response.tips.count>0) {//将搜索出的结果保存到数组[self.addressArray addObjectsFromArray:response.tips];}else{[self.mainTableView tableViewShowMessage:@"无结果" forDataCount:0];}[self.mainTableView reloadData];}#pragma mark - <UITableViewDataSource,UITableViewDelegate>-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{return 1;}-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{return self.addressArray.count;}-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{NSString *identifier = @"cellID";UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];if (cell == nil) {cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:identifier];}if (self.isSearchAround == YES) {//POI周边搜索AMapPOI *poi = self.addressArray[indexPath.row];cell.textLabel.text = poi.name;cell.detailTextLabel.text = poi.address;}else{//输入提示搜索AMapTip *tip = self.addressArray[indexPath.row];cell.textLabel.text = tip.name;cell.detailTextLabel.text = tip.address;}return cell;}-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{return 50;}-(CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section{return 0.01;}-(CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{return 0.01;}-(UIView*)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section{return nil;}-(UIView*)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{return nil;}-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{[tableView deselectRowAtIndexPath:indexPath animated:YES];}#pragma mark - 监听textField值改变- (void)textFieldValueChanged:(UITextField *)textField{[self searchAroundWithKeywords:textField.text];}#pragma mark - UITextFieldDelegate- (BOOL)textFieldShouldReturn:(UITextField *)textField{[self.view endEditing:YES];return YES;}@end
