179 lines
6.1 KiB
Objective-C
179 lines
6.1 KiB
Objective-C
//
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// NTESLocationViewController.m
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// NIM
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//
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// Created by chris on 15/2/28.
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// Copyright (c) 2015年 Netease. All rights reserved.
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//
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#import "NTESLocationViewController.h"
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#import "Toast+UIView.h"
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#import "NTESLocationPoint.h"
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#import <AddressBookUI/AddressBookUI.h>
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#import <CoreLocation/CoreLocation.h>
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@interface NTESLocationViewController (){
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BOOL _updateUserLocation;
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}
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@property(nonatomic,strong) UIBarButtonItem *sendButton;
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@property(nonatomic,strong) CLLocationManager *locationManager;
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@property(nonatomic,strong) NTESLocationPoint *locationPoint;
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@property(nonatomic,strong) CLGeocoder * geoCoder;
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@end
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@implementation NTESLocationViewController
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- (instancetype)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{
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self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
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if (self) {
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_locationManager = [[CLLocationManager alloc] init];
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_geoCoder = [[CLGeocoder alloc] init];
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}
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return self;
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}
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- (instancetype)initWithLocationPoint:(NTESLocationPoint*)locationPoint{
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self = [self initWithNibName:nil bundle:nil];
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if (self) {
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_locationPoint = locationPoint;
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}
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return self;
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}
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- (void)viewDidLoad {
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[super viewDidLoad];
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self.navigationItem.title = @"位置";
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self.mapView.delegate = self;
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if (self.locationPoint) {
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MKCoordinateRegion theRegion;
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theRegion.center = self.locationPoint.coordinate;
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theRegion.span.longitudeDelta = 0.01f;
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theRegion.span.latitudeDelta = 0.01f;
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[self.mapView addAnnotation:self.locationPoint];
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[self.mapView setRegion:theRegion animated:YES];
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}else{
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[self setUpRightNavButton];
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self.locationPoint = [[NTESLocationPoint alloc] init];
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if ([CLLocationManager locationServicesEnabled]) {
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if (IOS8) {
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[_locationManager requestAlwaysAuthorization];
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}
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CLAuthorizationStatus status = CLLocationManager.authorizationStatus;
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if (status == kCLAuthorizationStatusRestricted || status == kCLAuthorizationStatusDenied) {
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[self.view makeToast:@"请在设置-隐私里允许程序使用地理位置服务"
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];
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}else{
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self.mapView.showsUserLocation = YES;
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}
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}else{
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[self.view makeToast:@"请打开地理位置服务"
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];
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}
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}
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}
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- (void)setUpRightNavButton{
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UIBarButtonItem *item = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemAction target:self action:@selector(onSend:)];
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self.navigationItem.rightBarButtonItem = item;
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self.sendButton = item;
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self.sendButton.enabled = NO;
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}
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- (void)onSend:(id)sender{
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if ([self.delegate respondsToSelector:@selector(onSendLocation:)]) {
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[self.delegate onSendLocation:self.locationPoint];
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}
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[self.navigationController popViewControllerAnimated:YES];
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}
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- (void)didReceiveMemoryWarning {
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[super didReceiveMemoryWarning];
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}
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#pragma mark - MKMapViewDelegate
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- (void)mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated{
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if (!_updateUserLocation) {
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return;
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}
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CLLocationCoordinate2D centerCoordinate = mapView.region.center;
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[self reverseGeoLocation:centerCoordinate];
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}
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- (void)mapView:(MKMapView *)mapView regionWillChangeAnimated:(BOOL)animated
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{
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if (!_updateUserLocation) {
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return;
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}
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[_mapView removeAnnotations:_mapView.annotations];
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}
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- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation{
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static NSString *reusePin = @"reusePin";
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MKPinAnnotationView * pin = (MKPinAnnotationView*)[mapView dequeueReusableAnnotationViewWithIdentifier:reusePin];
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if (!pin) {
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pin = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:reusePin];
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}
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pin.canShowCallout = YES;
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return pin;
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}
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- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation{
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_updateUserLocation = YES;
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MKCoordinateRegion theRegion;
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theRegion.center = userLocation.coordinate;
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theRegion.span.longitudeDelta = 0.01f;
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theRegion.span.latitudeDelta = 0.01f;
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[_mapView setRegion:theRegion animated:NO];
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}
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- (void)mapView:(MKMapView *)mapView didAddAnnotationViews:(NSArray *)views{
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[_mapView selectAnnotation:self.locationPoint animated:YES];
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UIView * view = [mapView viewForAnnotation:self.mapView.userLocation];
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view.hidden = YES;
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}
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- (void)reverseGeoLocation:(CLLocationCoordinate2D)locationCoordinate2D{
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if (self.geoCoder.isGeocoding) {
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[self.geoCoder cancelGeocode];
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}
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CLLocation *location = [[CLLocation alloc]initWithLatitude:locationCoordinate2D.latitude
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longitude:locationCoordinate2D.longitude];
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__weak NTESLocationViewController *wself = self;
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self.sendButton.enabled = NO;
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[self.geoCoder reverseGeocodeLocation:location
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completionHandler:^(NSArray *placemarks, NSError *error)
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{
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if (error == nil) {
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CLPlacemark *mark = [placemarks lastObject];
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NSString * title = [wself nameForPlaceMark:mark];
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NTESLocationPoint *ponit = [[NTESLocationPoint alloc]initWithCoordinate:locationCoordinate2D andTitle:title];
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wself.locationPoint = ponit;
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[wself.mapView addAnnotation:ponit];
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wself.sendButton.enabled = YES;
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} else {
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wself.locationPoint = nil;
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}
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}];
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}
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- (NSString *)nameForPlaceMark: (CLPlacemark *)mark
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{
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NSString *name = ABCreateStringWithAddressDictionary(mark.addressDictionary,YES);
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unichar characters[1] = {0x200e}; //format之后会出现这个诡异的不可见字符，在android端显示会很诡异，需要去掉
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NSString *invalidString = [[NSString alloc]initWithCharacters:characters length:1];
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NSString *formattedName = [[name stringByReplacingOccurrencesOfString:@"\n" withString:@" "]
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stringByReplacingOccurrencesOfString:invalidString withString:@""];
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return formattedName;
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}
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@end
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