需要到info.plist文件里,添加量过字段:
NSLocationAlwaysUsageDescription =yes
NSLocationWhenInUseUsageDescription=yes
再添加 [locationManager requestAlwaysAuthorization];
NSLocationAlwaysUsageDescription =yes
NSLocationWhenInUseUsageDescription=yes
再添加 [locationManager requestAlwaysAuthorization];

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