ViewController.m（聲明文件中我沒(méi)有寫(xiě)代碼）

#import "ViewController.h"
#import <MapKit/MapKit.h>
#import "MyAnnotation.h"
#import <CoreLocation/CoreLocation.h>
#import "CustomAnnotationView.h"
@interface ViewController ()<MKMapViewDelegate>
{
    CLLocationManager *_locationManager;

    MKMapView *_mapView;

}

@property (nonatomic,retain) NSMutableArray *locationArray;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    //定位授權(quán)
    _locationManager = [[CLLocationManager alloc]init];
    [_locationManager requestAlwaysAuthorization];

    //地圖試圖
    _mapView = [[MKMapView alloc]initWithFrame:self.view.frame];
    _mapView.showsUserLocation = YES;
    _mapView.delegate = self;
     [self.view addSubview:_mapView];

}

#pragma mark  private Method

//添加大頭針
- (void)loadData{

    NSString *filePath = [[NSBundle mainBundle] pathForResource:@"PinData" ofType:@"plist"];

    NSArray *tempArray = [NSArray arrayWithContentsOfFile:filePath];

    //將pist數(shù)據(jù)轉(zhuǎn)換成大頭針model
    for (NSDictionary *dict in tempArray) {

    MyAnnotation *myAnnotationModel = [[MyAnnotation alloc]initAnnotationModelWithDict:dict];

    [self.locationArray addObject:myAnnotationModel];

    }

    [_mapView addAnnotations:self.locationArray];

}

#pragma mark delegate

- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation{

    userLocation.title = @"1234";
    _mapView.centerCoordinate = userLocation.coordinate;

    [_mapView setRegion:MKCoordinateRegionMake(userLocation.coordinate, MKCoordinateSpanMake(0.3, 0.3)) animated:YES];

    //如果你是在ViewDidload方法中添加大頭針，大頭針顯示時(shí)會(huì)沒(méi)有掉落效果，定位結(jié)束以后添加大頭針才會(huì)有掉落效果
    [self loadData];
}

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation{

    /*

     * 大頭針?lè)謨煞N

     * 1. MKPinAnnotationView：他是系統(tǒng)自帶的大頭針，繼承于MKAnnotationView，形狀跟棒棒糖類(lèi)似，可以設(shè)置糖的顏色，和顯示的時(shí)候是否有動(dòng)畫(huà)效果

     * 2. MKAnnotationView：可以用指定的圖片作為大頭針的樣式，但顯示的時(shí)候沒(méi)有動(dòng)畫(huà)效果，如果沒(méi)有給圖片的話(huà)會(huì)什么都不顯示

     * 3. mapview有個(gè)代理方法，當(dāng)大頭針顯示在試圖上時(shí)會(huì)調(diào)用，可以實(shí)現(xiàn)這個(gè)方法來(lái)自定義大頭針的動(dòng)畫(huà)效果，我下面寫(xiě)有可以參考一下

     * 4. 在這里我為了自定義大頭針的樣式，使用的是MKAnnotationView

     */
    if ([annotation isKindOfClass:[MKUserLocation class]]) {

        MKAnnotationView *annotationView = [[MKAnnotationView alloc]init];

        annotationView.image = [UIImage imageNamed:@"user.png"];

        annotationView.canShowCallout = YES;

       return annotationView;

    }

    CustomAnnotationView *annotationView = (CustomAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:@"otherAnnotationView"];

    if (annotationView == nil) {

        annotationView = [[CustomAnnotationView alloc]initWithAnnotation:annotation reuseIdentifier:@"otherAnnotationView"];

    }

    MyAnnotation *myAnnotation = annotation;

    switch ([myAnnotation.type intValue]) {

        case SUPER_MARKET:{

            annotationView.image = [UIImage imageNamed:@"buy.png"];
            annotationView.label.text = @"超市";

        }break;

        case CREMATORY:{

            annotationView.image = [UIImage imageNamed:@"fire.png"];
            annotationView.label.text = @"火葬場(chǎng)";

        }break;

        case INTEREST:{

            annotationView.image = [UIImage imageNamed:@"cammer.png"];
            annotationView.label.text = @"景點(diǎn)";

        }break;

    }
    return annotationView;

}

//大頭針顯示在試圖上時(shí)調(diào)用，我在這里給大頭針設(shè)置顯示動(dòng)畫(huà)
- (void) mapView:(MKMapView *)mapView didAddAnnotationViews:(NSArray *)views {

    //獲取到mapview的frame
    CGRect visibleRect = [mapView annotationVisibleRect];

    for (MKAnnotationView *view in views) {

        CGRect endFrame = view.frame;
        CGRect startFrame = endFrame;
        startFrame.origin.y = visibleRect.origin.y - startFrame.size.height;
        view.frame = startFrame;
        [UIView beginAnimations:@"drop" context:NULL];
        [UIView setAnimationDuration:1];
        view.frame = endFrame;
        [UIView commitAnimations];
    }
}

#pragma mark lazy load

- (NSMutableArray *)locationArray{

    if (_locationArray == nil) {

        _locationArray = [NSMutableArray new];

    }
    return _locationArray;
}

@end

PS: 大頭針的顯示跟cell的顯示機(jī)制一樣，都是采用復(fù)用機(jī)制，可以對(duì)比著來(lái)理解。

大頭針數(shù)據(jù)模型 MyAnnotation.h

//
// MyAnnotation.m
// AddManyCustomAnnotation
//
// Created by GG on 16/3/13.
// Copyright ? 2016年 GG. All rights reserved.
//

import "MyAnnotation.h"

@implementation MyAnnotation

• (instancetype)initAnnotationModelWithDict:(NSDictionary *)dict{

  self = [super init];

  if (self) {

    self.coordinate = CLLocationCoordinate2DMake([dict[@"coordinate"][@"latitude"] doubleValue], [dict[@"coordinate"][@"longitude"] doubleValue]);
  
    self.title = dict[@"detail"];
  
    self.name = dict[@"name"];
  
    self.type = dict[@"type"];
  

  }

  return self;

}

@end

大頭針試圖 CustomPinAnnotationView.h

//
// CustomPinAnnotationView.m
// AddManyCustomAnnotation
//
// Created by GG on 16/3/13.
// Copyright ? 2016年 GG. All rights reserved.
//

import "CustomAnnotationView.h"

@implementation CustomAnnotationView

• (instancetype)initWithAnnotation:(id<MKAnnotation>)annotation reuseIdentifier:(NSString *)reuseIdentifier{

  if ([super initWithAnnotation:annotation reuseIdentifier:reuseIdentifier]) {
  //在大頭針旁邊加一個(gè)label
  self.label = [[UILabel alloc] initWithFrame:CGRectMake(0, -15, 50, 20)];
  self.label.textColor = [UIColor grayColor];
  self.label.textAlignment = NSTextAlignmentCenter;
  self.label.font = [UIFont systemFontOfSize:10];
  [self addSubview:self.label];

  }

  return self;
  }

@end