YYXC_Student/jiaPei/Utils/Extension/CLLocationManager+RQExtension.m

//
//  CLLocationManager+RQExtension.m
//  jiaPei
//
//  Created by 张嵘 on 2020/3/18.
//  Copyright © 2020 JCZ. All rights reserved.
//

#import "CLLocationManager+RQExtension.h"
#import <objc/runtime.h>

@implementation CLLocationManager (RQExtension)
static inline void pg_swizzleSelector(Class theClass, SEL originalSelector, SEL swizzledSelector) {
    Method originaMethod = class_getInstanceMethod(theClass, originalSelector);
    Method swizzledMethod = class_getInstanceMethod(theClass, swizzledSelector);
    method_exchangeImplementations(originaMethod, swizzledMethod);
}

+ (void)load {
    if (9 <= [UIDevice currentDevice].systemVersion.floatValue) {
        pg_swizzleSelector(UIDevice.class,
                           @selector(endGeneratingDeviceOrientationNotifications),
                           @selector(pgEndGeneratingDeviceOrientationNotifications));
    }
}

- (void)pgEndGeneratingDeviceOrientationNotifications {
    NSLog(@"swizzledSetAllowsBackgroundLocationUpdates isMainThread:%d", [NSThread isMainThread]);
    if (![NSThread isMainThread]) {
        dispatch_async(dispatch_get_main_queue(), ^{
            [self pgEndGeneratingDeviceOrientationNotifications];
        });
        return;
    }
    [self pgEndGeneratingDeviceOrientationNotifications];
}
@end