iOS 百度地图的模糊搜索地址以及回调的使用
前一段时间一直在写一个打车的 app, 所以用到了百度地图,在这里先吐槽一下,百度地图的官方文档真的不怎么详细,好在有 demo, 地图 sdk 文档写的最详细的应该就是高德的了,个人觉得,其他的没有比较,腾讯地图没看,因为公司要求用百度地图,无奈之举了,好啦,言归正传,下面就详细的介绍一下百度地图定位与模糊搜索的一般使用吧!!!
1.用百度地图当然需要当官方网站里面注册 app, 申请 appKey 和 secret, 注意绑定的 bundle id 一定要和自己项目的 bundle id 一致,否则 mapview 无法加载.
2.导入 sdk, 两种方法,直接导入和 cocoapods,这些都是官方文档里面已经写得很详细了.
3.直接进入主要的内容吧,时间有限.
a.appdelegate 中的
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// 要使用百度地图，请先启动BaiduMapManager
_mapManager = [[BMKMapManager alloc]init];
// 如果要关注网络及授权验证事件，请设定 generalDelegate参数
BOOL ret = [_mapManager start:@"百度地图秘钥" generalDelegate:nil];
if (!ret) {
NSLog(@"manager start failed!");
}
return YES;
}
b.然后就是 viewController
(1)导入百度地图相关的.h 文件,(设置代理事件)
@interface HomeViewController ()<BMKMapViewDelegate,BMKGeoCodeSearchDelegate,BMKLocationServiceDelegate>
{
BMKPinAnnotationView *newAnnotation;
BMKGeoCodeSearch *_geoCodeSearch;
BMKReverseGeoCodeOption *_reverseGeoCodeOption;
BMKLocationService *_locService;
BMKRouteSearch *routeSearch;//路径规划
}
@property (nonatomic,strong) BMKMapView *mapView;
@property (weak, nonatomic) UIButton *mapPin;
-(NSMutableArray *)cityDataArr
{
if (_cityDataArr==nil)
{
_cityDataArr=[NSMutableArray arrayWithCapacity:0];
}
return _cityDataArr;
}
#pragma mark 初始化地图，定位
-(void)initLocationService
{
//设置了 navigationBar 的 translucent 属性,屏幕整体下移64个像素
_mapView = [[BMKMapView alloc] initWithFrame:CGRectMake(0, -64, kScreen_width, kScreen_height)];
[_mapView setMapType:BMKMapTypeStandard];// 地图类型 ->卫星／标准、
_mapView.zoomLevel = 25;//缩放比例,越大,定位越精确,但是地图显示的范围有限
[_mapView setBuildingsEnabled:YES];
_mapView.delegate = self;//代理事件,用完一定要置空,要不然就内存泄露
_mapView.showsUserLocation = YES;//显示定位点
[_mapView bringSubviewToFront:_mapPin];
if (_locService==nil) {
_locService = [[BMKLocationService alloc]init];
[_locService setDesiredAccuracy:kCLLocationAccuracyBest];
}
_locService.delegate = self;
[_locService startUserLocationService];
_mapView.showsUserLocation = NO;//先关闭显示的定位图层
_mapView.userTrackingMode = BMKUserTrackingModeFollow;//设置定位的状态
_mapView.showsUserLocation = YES;//显示定位图层
[self.view addSubview:self.mapView];
[self.mapView addSubview:self.centerImgView];
//定位展示视图
BMKLocationViewDisplayParam *displayParam = [[BMKLocationViewDisplayParam alloc]init];
displayParam.isAccuracyCircleShow = false;//精度圈是否显示
[_mapView updateLocationViewWithParam:displayParam];
//添加视图到 mapView 上面
[self creatViewOnmapView];
}
#pragma mark BMKLocationServiceDelegate
- (void)didUpdateBMKUserLocation:(BMKUserLocation *)userLocation
{
_mapView.showsUserLocation = YES;//显示定位图层
//设置地图中心为用户经纬度
[_mapView updateLocationData:userLocation];
//_mapView.centerCoordinate = userLocation.location.coordinate;
// BMKCoordinateRegion region ;//表示范围的结构体
// region.center = _mapView.centerCoordinate;//中心点
// region.span.latitudeDelta = 0.004;//经度范围（设置为0.1表示显示范围为0.2的纬度范围）
// region.span.longitudeDelta = 0.004;//纬度范围
// [_mapView setRegion:region animated:YES];
}
#pragma mark ------- 视图将要消失,做一些操作
-(void)viewWillDisappear:(BOOL)animated
{
[_mapView viewWillDisappear];
_mapView.delegate = nil;
_locService.delegate = nil;
_geoCodeSearch.delegate = nil;
routeSearch.delegate = nil;
}
-(void)dealloc
{
if (_mapView) {
_mapView = nil;
}
}
这样一个简单的定位的功能的百度地图就已经好了.
4.下面就是模糊搜索了
同样导入相关的头文件,设置相关代理,实现相关代理事件
typedef void(^FinishBlock)(NSString *address,CLLocationCoordinate2D pt);//传回地址和百度地图经纬度
@interface SearchViewController : UIViewController
@property (nonatomic,strong) UITextField *inputAddTF;//输入地址框
@property (weak, nonatomic) IBOutlet UITableView *displayTableView;//显示的tableView
@property (nonatomic,strong) NSString *placeStr;
@property (nonatomic,strong) FinishBlock block;//回调的 block
@property (nonatomic,strong) NSString *locationCity;//定位城市
@end
@interface SearchViewController ()<BMKPoiSearchDelegate,BMKGeoCodeSearchDelegate,UITableViewDataSource,UITableViewDelegate,UIScrollViewDelegate>
{
BMKPoiSearch *_poisearch; //poi搜索
BMKGeoCodeSearch *_geocodesearch; //geo搜索服务
}
@property (nonatomic,strong) NSMutableArray *addressArray;//搜索的地址数组
@property (nonatomic,strong) SearchModel *model;
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
//自动让输入框成为第一响应者,弹出键盘
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[self.inputAddTF becomeFirstResponder];
});
}
-(void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
_poisearch.delegate = nil; // 不用时，置nil
_geocodesearch.delegate = nil;
}
- (void)viewDidLoad {
[super viewDidLoad];
_inputAddTF = [[UITextField alloc] initWithFrame:CGRectMake(0, 10, 200*RATIO, 30*RATIO)];
self.inputAddTF.attributedPlaceholder = [self setPlaceHolderString:self.placeStr];
[self.inputAddTF addTarget:self action:@selector(inputAddTFAction:) forControlEvents:UIControlEventEditingChanged];
self.inputAddTF.borderStyle =UITextBorderStyleNone;
self.inputAddTF.backgroundColor = COLOR_BTN;
self.inputAddTF.textAlignment = NSTextAlignmentCenter;
self.displayTableView.dataSource = self;
self.displayTableView.delegate = self;
self.inputAddTF.font = [UIFont boldSystemFontOfSize:18*RATIO];
self.inputAddTF.textColor = [UIColor colorWithWhite:20 alpha:7];
self.navigationItem.titleView = _inputAddTF;
}
#pragma mark TableViewDelegate
//设置 row
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return self.addressArray.count;
}
//设置 tableViewCell
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cell_id = @"cell_id";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cell_id];
if (!cell) {
cell = [[UITableViewCell alloc] initWithStyle:3 reuseIdentifier:cell_id];
}
SearchModel *sModel = [[SearchModel alloc] init];
sModel = self.addressArray[indexPath.row];
cell.textLabel.text = sModel.name;
cell.textLabel.font = [UIFont systemFontOfSize:15];
NSString *str = @"676767";
cell.textLabel.textColor = UIColorFromRGBString(str);
cell.detailTextLabel.text = sModel.address;
cell.detailTextLabel.textColor = [UIColor colorWithRed:157/255.0 green:157/255.0 blue:157/255.0 alpha:1];
return cell;
}
//设置选中事件
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
SearchModel *model = [[SearchModel alloc] init];
model = self.addressArray[indexPath.row];
[self.navigationController popViewControllerAnimated:YES];
//block 传值
__weak typeof(self) wSelf = self;
wSelf.block(model.address,model.pt);
}
#pragma mark ---- 设置高度
-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 50;
}
#pragma mark 监听输入文本信息
-(void)inputAddTFAction:(UITextField *)textField
{
//延时搜索
[self performSelector:@selector(delay) withObject:self afterDelay:0.5];
}
#pragma mark ----- 延时搜索
- (void)delay {
[self nameSearch];
}
#pragma mark ---- 输入地点搜索
-(void)nameSearch
{
_poisearch = [[BMKPoiSearch alloc]init];
_poisearch.delegate = self;
BMKCitySearchOption *citySearchOption = [[BMKCitySearchOption alloc]init];
citySearchOption.pageIndex = 0;
citySearchOption.pageCapacity = 30;
citySearchOption.city= _locationCity;
citySearchOption.keyword = self.inputAddTF.text;
BOOL flag = [_poisearch poiSearchInCity:citySearchOption];
if(flag)
{
NSLog(@"城市内检索发送成功");
}
else
{
NSLog(@"城市内检索发送失败");
}
}
#pragma mark --------- poi 代理方法
-(void)onGetPoiResult:(BMKPoiSearch *)searcher result:(BMKPoiResult *)poiResult errorCode:(BMKSearchErrorCode)errorCode
{
if(errorCode == BMK_SEARCH_NO_ERROR)
{
self.addressArray = [NSMutableArray array];
[self.addressArray removeAllObjects];
for (BMKPoiInfo *info in poiResult.poiInfoList) {
_model = [[SearchModel alloc] init];
_model.name = info.name;
_model.address = info.address;
_model.pt = info.pt;
[self.addressArray addObject:_model];
}
[self.displayTableView reloadData];
}
}
#pragma mark 滑动的时候收起键盘
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
[self.view endEditing:YES];
[self.navigationItem.titleView endEditing:YES];
}
-(void)dealloc
{
if (_poisearch != nil) {
_poisearch = nil;
}
if (_geocodesearch != nil) {
_geocodesearch = nil;
}
}
//这样一个简单的搜索功能就实现了,时间问题,就没那么多时间写了,有疑问可以留言
