#import "ViewController.h"

@interface ViewController ()<BMKMapViewDelegate,BMKPoiSearchDelegate>

@property(nonatomic,weak)BMKMapView * mapView;

@property(nonatomic,weak)UITextField * tf;

@property(nonatomic,strong)BMKPoiSearch * poisearch;

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    //设置地图

    BMKMapView* mapView = [[BMKMapView alloc]initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height)];

    self.mapView = mapView;

    [self.view addSubview:mapView];

    //设置开始查找按钮和输入文本框

    UIButton * btn = [[UIButton alloc]initWithFrame:CGRectMake(30, 30, 100, 30)];

    [btn setTitle:@"开始查找" forState:UIControlStateNormal];

    [btn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];

    [btn setBackgroundColor:[UIColor orangeColor]];

    [self.view addSubview:btn];

    UITextField * tf = [[UITextField alloc]initWithFrame:CGRectMake(150, 30, 100, 30)];

    self.tf= tf;

    tf.backgroundColor = [UIColor orangeColor];

    [self.view addSubview:tf];

    //实例POI检索化检索对象，并设置代理

    self.poisearch = [[BMKPoiSearch alloc]init];

    self.poisearch.delegate = self;

}

-(void)btnClick :(UIButton *)btn

{

    //检索参数

    BMKCitySearchOption *citySearchOption = [[BMKCitySearchOption alloc]init];

    citySearchOption.pageIndex = 0; //当前页码

    citySearchOption.pageCapacity = 20; //每页个数

    citySearchOption.city= @"北京"; //城市

    citySearchOption.keyword = self.tf.text; //关键字 酒店

    //根据检索参数，进行检索，并返回检索结果的标识

    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 implement BMKSearchDelegate

- (void)onGetPoiResult:(BMKPoiSearch *)searcher result:(BMKPoiResult*)result errorCode:(BMKSearchErrorCode)error

{

    // 清除屏幕中所有的annotation

    NSArray* array = [NSArray arrayWithArray:_mapView.annotations];

    [_mapView removeAnnotations:array];

    //正确

    if (error == BMK_SEARCH_NO_ERROR) {

        NSMutableArray *annotations = [NSMutableArray array];

        //遍历返回的查询结果

        for (int i = 0; i < result.poiInfoList.count; i++) {

            BMKPoiInfo* poi = [result.poiInfoList objectAtIndex:i];

            BMKPointAnnotation* item = [[BMKPointAnnotation alloc]init];

            item.coordinate = poi.pt;

            item.title = poi.name;

            [annotations addObject:item];

        }

        //给地图添加大头针模型

        [_mapView addAnnotations:annotations];

        [_mapView showAnnotations:annotations animated:YES];

    } else if (error == BMK_SEARCH_AMBIGUOUS_ROURE_ADDR){

        NSLog(@"起始点有歧义");

    } else {

        // 各种情况的判断。。。

    }

}

#pragma mark implement BMKMapViewDelegate

/**

 *根据anntation生成对应的View

 *@param mapView 地图View

 *@param annotation 指定的标注

 *@return 生成的标注View

 */

- (BMKAnnotationView *)mapView:(BMKMapView *)view viewForAnnotation:(id <BMKAnnotation>)annotation

{

    // 生成重用标示identifier

    NSString *AnnotationViewID = @"xidanMark";

    // 检查是否有重用的缓存

    BMKAnnotationView* annotationView = [view dequeueReusableAnnotationViewWithIdentifier:AnnotationViewID];

    // 缓存没有，自己构造一个，一般首次添加annotation代码会运行到此处

    if (annotationView == nil) {

        annotationView = [[BMKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:AnnotationViewID];

        ((BMKPinAnnotationView*)annotationView).pinColor = BMKPinAnnotationColorRed;

        // 设置重天上掉下的效果(annotation)

        ((BMKPinAnnotationView*)annotationView).animatesDrop = YES;

    }

    // 设置位置

    annotationView.centerOffset = CGPointMake(0, -(annotationView.frame.size.height * 0.5));

    annotationView.annotation = annotation;

    // 单击弹出泡泡，弹出泡泡前提annotation必须实现title属性

    annotationView.canShowCallout = YES;

    // 设置是否可以拖拽

    annotationView.draggable = NO;

    return annotationView;

}

-(void)viewWillAppear:(BOOL)animated

{

    [_mapView viewWillAppear];

    _mapView.delegate = self; // 此处记得不用的时候需要置nil，否则影响内存的释放

}

-(void)viewWillDisappear:(BOOL)animated

{

    [_mapView viewWillDisappear];

    _mapView.delegate = nil; // 不用时，置nil

}

@end