高德地图---显示/定位/POI搜索/大头针/气泡
接触高德地图也有一段时间了。但是也有很长一段时间没用了，手生了。闲来无事就再写写地图。好在高德的文档做的很详实，使用起来得心应手。今天就写了一点关于显示/定位/POI搜索/大头针/气泡的简单代码。
难点就是搜索后大头针的问题。首先需要移除上一次搜索显示的大头针，再显示这一次需要显示大头针，不然屏幕显示的大头针会越来越多。这一点在官方的视频里面是有这些的。
首先上一张效果图：
这次使用的版本是V2.6.0的。这个官方也有文档和视频。高德开放平台 http://lbs.amap.com/api/ios-sdk/guide/nearby/。
之间看代码，代码里面的注释还是比较详细的。代码下载地址：高德地图Demo下载 https://github.com/zhuming3834/GaodeDemo。
ViewController.m
#import "ViewController.h"
//地图显示需要的头文件
#import <MAMapKit/MAMapKit.h>
//poi搜素需要的头文件
#import <AMapSearchKit/AMapSearchAPI.h>
#import "DetailViewController.h"
@interface ViewController ()<MAMapViewDelegate, AMapSearchDelegate,UISearchBarDelegate,UITableViewDelegate,UITableViewDataSource>
@property (nonatomic,strong)MAMapView *mapView;
@property (nonatomic,strong)AMapSearchAPI *search;
@property (nonatomic,strong)MAUserLocation *location;
@property (nonatomic,strong)AMapPlaceSearchRequest *request;
@property (nonatomic,strong)UISearchBar *searchBar;
@property (nonatomic,strong)UITableView *tableView;
@property (nonatomic,strong)NSMutableArray *annotationArr;
@property (nonatomic,strong)NSMutableArray *poisArray;
@property (nonatomic,assign)NSInteger index;
@end
@implementation ViewController
#pragma mark - 页面跳转时需要使用
/* 需要页面跳转时使用
- (void)viewWillAppear:(BOOL)animated{
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(setPoiPoint:) name:@"test" object:nil];
}
- (void)setPoiPoint:(NSNotification *)notice{
//先移除掉上次搜索的大头针
[self.mapView removeAnnotations:self.annotationArr];
//清空数组
[self.annotationArr removeAllObjects];
NSString *index = notice.object;
AMapPOI *poi = self.poisArray[index.integerValue];
MAPointAnnotation *annotation = [[MAPointAnnotation alloc] init];
CLLocationCoordinate2D coordinate = CLLocationCoordinate2DMake(poi.location.latitude, poi.location.longitude);
annotation.coordinate = coordinate;
annotation.title = poi.name;
annotation.subtitle = poi.address;
[self.annotationArr addObject:annotation];
[self.mapView addAnnotation:annotation];
}
*/
- (void)viewDidLoad {
[super viewDidLoad];
//增加一个KVO index
[self addObserver:self forKeyPath:@"index" options: NSKeyValueObservingOptionNew | NSKeyValueObservingOptionOld context:nil];
self.annotationArr = [[NSMutableArray alloc] init];
[self configApiKey];
[self setMySearchConterl];
[self setMainView];
[self setTableView];
//获取bundleIdentifier
// NSLog(@"bundleIdentifier = %@",[[NSBundle mainBundle] bundleIdentifier]);
// Do any additional setup after loading the view, typically from a nib.
}
#pragma mark - 地图显示和搜索部分
/**
* 配置APIKey
*/
- (void)configApiKey{
[MAMapServices sharedServices].apiKey = @"a12bc9db3e3f5ba30482aa704ee0fc29";
}
/**
* 设置地图显示 有这个方法就可以显示用户的位置
*/
- (void)setMainView{
self.mapView = [[MAMapView alloc] initWithFrame:CGRectMake(0, 64, self.view.frame.size.width, 200)];
self.mapView.delegate = self;
//设置地图语言 默认是中文
// self.mapView.language = MAMapLanguageEn;
//地图类型 默认是2D栅格地图
// self.mapView.mapType = MAMapTypeSatellite;
//关闭指南针显示
self.mapView.showsCompass = NO;
//关闭比例尺显示
self.mapView.showsScale = NO;
//显示用户位置
self.mapView.showsUserLocation = YES;
//设置跟踪模式
self.mapView.userTrackingMode = MAUserTrackingModeFollow;
[self.view addSubview:self.mapView];
}
/**
* 设置POI搜素请求
*
* @param keyword 搜索需要的关键字
*/
- (void)setPoiSearchMapWithKeyword:(NSString *)keyword{
//初始化检索对象
self.search = [[AMapSearchAPI alloc] initWithSearchKey:[MAMapServices sharedServices].apiKey Delegate:self];
//构建AMapPlaceSearchRequest对象
self.request = [[AMapPlaceSearchRequest alloc] init];
//搜索类型 关键字搜索
self.request.searchType = AMapSearchType_PlaceKeyword;
//设置搜索关键字
self.request.keywords = keyword;
//搜索地点 广州
self.request.city = @[@"guangzhou"];
//开扩展
self.request.requireExtension = YES;
//发起POI搜索
[self.search AMapPlaceSearch:self.request];
}
/**
* POI搜索请求后调用的方法
*
* @param request 搜索请求
* @param response 请求结果
*/
- (void)onPlaceSearchDone:(AMapPlaceSearchRequest *)request response:(AMapPlaceSearchResponse *)response{
if (response.count == 0) {
return;
}
/* 仅仅显示搜索结果的大头针
//先移除掉上次搜索的大头针 不然上一次的大头针会一直存在
[self.mapView removeAnnotations:self.annotationArr];
//清空数组
[self.annotationArr removeAllObjects];
*/
// NSString *responseCount = [NSString stringWithFormat:@"%d",response.count];;
// NSLog(@"responseCount = %@",responseCount);
self.poisArray = [[NSMutableArray alloc] init];
for (AMapPOI *poi in response.pois) {
[self.poisArray addObject:poi];
/* 仅仅显示搜索结果的大头针
MAPointAnnotation *annotation = [[MAPointAnnotation alloc] init];
CLLocationCoordinate2D coordinate = CLLocationCoordinate2DMake(poi.location.latitude, poi.location.longitude);
annotation.coordinate = coordinate;
annotation.title = poi.name;
annotation.subtitle = poi.address;
[self.annotationArr addObject:annotation];
[self.mapView addAnnotation:annotation];
*/
}
[self.tableView reloadData];
/*需要页面跳转时使用
DetailViewController *dvc = [[DetailViewController alloc] init];
dvc.poisArray = self.poisArray;
[self presentViewController:dvc animated:YES completion:nil];
*/
}
/**
* 设置大头针点击后的气泡
*
* @param mapView mapView
* @param annotation annotation
*
* @return 气泡
*/
- (MAAnnotationView *)mapView:(MAMapView *)mapView viewForAnnotation:(id<MAAnnotation>)annotation{
// if ([annotation isKindOfClass:[MAAnnotationView class]]) {
static NSString *identify = @"annotation";
//在原有的大头针中添加自定义的修饰
MAPinAnnotationView *pointAnnotation = (MAPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:identify];
if (pointAnnotation == nil) {
//在原有的大头针中创建一个新的自定义的大头针
pointAnnotation = [[MAPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identify];
}
//设置是否能选中的标题
pointAnnotation.canShowCallout = YES;
//是否允许拖拽
pointAnnotation.draggable = YES;
//是否允许退拽动画
pointAnnotation.animatesDrop = YES;
return pointAnnotation;
}
/**
* 地图定位后就会调用这个方法 酒店
*
* @param mapView 当前的mapView
* @param userLocation userLocation
* @param updatingLocation 位置更新标志
*/
- (void)mapView:(MAMapView *)mapView didUpdateUserLocation:(MAUserLocation *)userLocation updatingLocation:(BOOL)updatingLocation{
// NSLog(@"地图");
if (updatingLocation) {
// NSLog(@"latitude = %f longitude = %f",userLocation.coordinate.latitude,userLocation.coordinate.longitude);
//确定地图经纬度
CLLocationCoordinate2D coordinate = CLLocationCoordinate2DMake(userLocation.coordinate.latitude, userLocation.coordinate.longitude);
//设置的当前位置 为地图中心
self.mapView.centerCoordinate = coordinate;
self.location = userLocation;
}
}
#pragma mark - searchBar部分
/**
* 设置searchBar
*/
- (void)setMySearchConterl{
self.searchBar = [[UISearchBar alloc] init];
self.searchBar.frame = CGRectMake(0, 20, self.view.frame.size.width, 44);
self.searchBar.delegate = self;
self.searchBar.placeholder = @"请输入关键字";
[self.view addSubview:self.searchBar];
}
- (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar{
return YES;
}
/**
* 设置左边的“取消”按钮
*
* @param searchBar searchBar
*/
- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar{
self.searchBar.showsCancelButton = YES;
for (id cc in [searchBar.subviews[0] subviews]) {
if ([cc isKindOfClass:[UIButton class]]) {
UIButton * cancelButton = (UIButton *)cc;
[cancelButton setTitle:@"取消" forState:UIControlStateNormal];
}
}
}// called when text starts editing
- (BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar{
return YES;
}// return NO to not resign first responder
- (BOOL)searchBar:(UISearchBar *)searchBar shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text NS_AVAILABLE_IOS(3_0){
return YES;
}// called before text changes
/**
* 键盘搜索按钮按下就会调用这个方法
*
* @param searchBar searchBar本身
*/
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar{
// NSLog(@"text = %@",searchBar.text);
//发起POI搜索请求
[self setPoiSearchMapWithKeyword:searchBar.text];
//收起键盘
[searchBar resignFirstResponder];
searchBar.text = @"";
}// called when keyboard search button pressed
/**
* “取消”按钮按下会调用这个方法
* 收起键盘
* @param searchBar searchBar本身
*/
- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar{
[searchBar resignFirstResponder];
self.searchBar.showsCancelButton = NO;
}// called when cancel button pressed
#pragma mark - tableView部分
/**
* 设置tableView
*/
- (void)setTableView{
self.tableView = [[UITableView alloc] init];
self.tableView.frame = CGRectMake(0, 264, self.view.frame.size.width, self.view.frame.size.height - 264);
self.tableView.delegate = self;
self.tableView.dataSource = self;
[self.view addSubview:self.tableView];
}
/**
* 设置tableView的row个数
*
* @param tableView tableView本身
* @param section 当前的section
*
* @return 当前section里面的row数
*/
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return self.poisArray.count;
}
/**
* 设置cell的显示
*
* @param tableView tableView本身
* @param indexPath cell的位置
*
* @return cell
*/
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *identify = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identify];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:identify];
}
AMapPOI *poi = (AMapPOI *)self.poisArray[indexPath.row];
cell.textLabel.text = poi.name;
cell.detailTextLabel.text = poi.address;
return cell;
}
/**
* tableView点击时间
*
* @param tableView tableView本身
* @param indexPath 被点击的cell的位置
*/
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
self.index = indexPath.row;
}
/**
* 实现KVO键值监听的方法
* 值改变后 增加大头针
* @param keyPath keyPath
* @param object self
* @param change 值字典
* @param context
*/
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context{
//先移除掉上次搜索的大头针
[self.mapView removeAnnotations:self.annotationArr];
//清空数组
[self.annotationArr removeAllObjects];
NSString *index = change[@"new"];
AMapPOI *poi = self.poisArray[index.integerValue];
MAPointAnnotation *annotation = [[MAPointAnnotation alloc] init];
CLLocationCoordinate2D coordinate = CLLocationCoordinate2DMake(poi.location.latitude, poi.location.longitude);
//地图中心点 设置为选中的点
self.mapView.centerCoordinate = coordinate;
annotation.coordinate = coordinate;
//一下两句 就是气泡的显示内容
annotation.title = poi.name;
annotation.subtitle = poi.address;
[self.annotationArr addObject:annotation];
[self.mapView addAnnotation:annotation];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
DetailViewController.m
#import "DetailViewController.h"
#import <AMapSearchKit/AMapSearchAPI.h>
@interface DetailViewController ()<UITableViewDataSource,UITableViewDelegate>
@property (weak, nonatomic) IBOutlet UITableView *tableView;
@end
@implementation DetailViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self setMainView];
// Do any additional setup after loading the view from its nib.
}
- (void)setMainView{
self.tableView.delegate = self;
self.tableView.dataSource = self;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return self.poisArray.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *identify = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identify];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:identify];
}
AMapPOI *poi = (AMapPOI *)self.poisArray[indexPath.row];
cell.textLabel.text = poi.name;
cell.detailTextLabel.text = poi.address;
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
[[NSNotificationCenter defaultCenter] postNotificationName:@"test" object:[NSString stringWithFormat:@"%d",indexPath.row]];
[self dismissViewControllerAnimated:YES completion:nil];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}