開啟定位步驟
[TOC]
第一步： 開啟后臺(tái)模式,選中定位選擇project –> capabilities–>Backgorund Modes –> Location updates 如圖：
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第二步： 在info.list 文件中添加如下配置：(添加定位權(quán)限污桦，ios8之后需要添加仪际，否則無法定位)
<key>NSLocationWhenInUseUsageDescription</key>
<string>YES</string>
<key>NSLocationAlwaysUsageDescription</key>
<string>YES</string>
第三步：Appdelegate中代碼1.引入頭文件，定義全局變量
#import<CoreLocation/CoreLocation.h>
@interface AppDelegate () {
CLLocationManager * _locationManager;
}
@end
2.didFinishLaunchingWithOptions中進(jìn)行初始化(調(diào)用初始化方法)，初始化方法如下：
-(void) createLocationManager{
_locationManager = [[CLLocationManager alloc] init];
if ([_locationManager respondsToSelector:@selector(requestAlwaysAuthorization)]) {
[_locationManager requestAlwaysAuthorization];
}
if ([_locationManager respondsToSelector:@selector(setAllowsBackgroundLocationUpdates:)]) {
[_locationManager setAllowsBackgroundLocationUpdates:YES];
}
_locationManager.pausesLocationUpdatesAutomatically = NO;
}
3.在applicationDidEnterBackground（進(jìn)入后臺(tái)）方法中執(zhí)行啟動(dòng)定位服務(wù)
- (void)applicationDidEnterBackground:(UIApplication *)application {
[_locationManager startUpdatingLocation];
}
