IOS后台定位

音乐和定位可以在后台一直运行着，前提是用户同意

直接上代码

//
//  ViewController.m
//  DingweiTest
//
//  Created by user on 15/9/7.
//  Copyright (c) 2015年 ron. All rights reserved.
//

#import <CoreLocation/CoreLocation.h>
#import "ViewController.h"

@interface ViewController ()<UIAccelerometerDelegate , CLLocationManagerDelegate> {
    CLLocationManager *locationManager;
}
@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    locationManager = [[CLLocationManager alloc] init];//初始化定位器
    [locationManager setDelegate: self];//设置代理
    [locationManager setDesiredAccuracy: kCLLocationAccuracyBest];//设置精确度
    [locationManager startUpdatingLocation];//开启位置更新
    locationManager.pausesLocationUpdatesAutomatically = NO;
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {
    NSLog(@"1123123123");
}

- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {
    NSLog(@"error");
}

@end

还有2个地方要设置，一个是background modes 设置location updates

另外一个info.plist添加

NSLocationAlwaysUsageDescription  -- String -- 我们需要通过您的地理位置来获取周边数据(这里文字随意)