iOS 监测蓝牙与定位是否开启并跳转设置中开启

（一）、获取定位权限

1、在Info.plist添加配置 （可根据情况任选其一，也可以两者都添加）

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2、向系统注册权限（可根据情况任选其一，也可以两者都添加，与Info.plist中添加的配置对应）

#import <CoreLocation/CoreLocation.h>      //添加定位服务头文件（不可缺少）    
@interface ViewController ()<CLLocationManagerDelegate>{//添加代理协议 CLLocationManagerDelegate
    CLLocationManager *_locationManager;//定位服务管理类
}
 - (void)viewDidLoad
 {
     [super viewDidLoad];
    _locationManager = [[CLLocationManager alloc] init];
    _locationManager = self;
    [_locationManager requestWhenInUseAuthorization];
   // [_locationManager requestAlwaysAuthorization];
}

3、当应用启动时，系统会根据应用的注册授权弹出提示框请求用户授权
（弹框的描述信息与Info.plist中配置的描述信息是一直的）

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4、当我们点击允许的时候，定位服务开始生效。
此时持续调用代理函数

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations{
    NSLog(@"定位中....");
}

当点击不允许的使用，分别调用代理函数

- (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status{
    NSLog(@"授权状态改变");
if (status == kCLAuthorizationStatusDenied) {
        NSLog(@"定位权限没开启");
        UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"打开定位,发现活动" message:nil preferredStyle:UIAlertControllerStyleAlert];
        UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"暂不" style:(UIAlertActionStyleCancel) handler:^(UIAlertAction * _Nonnull action) {
            [self.navigationController popViewControllerAnimated:YES];
        }];
        UIAlertAction *confrmAction = [UIAlertAction actionWithTitle:@"打开" style:(UIAlertActionStyleDefault) handler:^(UIAlertAction * _Nonnull action) {
            NSURL *url = [NSURL URLWithString:@"App-Prefs:root=LOCATION_SERVICES"];
            if ([[UIApplication sharedApplication]canOpenURL:url]) {
                [[UIApplication sharedApplication]openURL:url options:@{} completionHandler:nil];
            }
            
        }];
        [alertController addAction:cancelAction];
        [alertController addAction:confrmAction];
        [self presentViewController:alertController animated:YES completion:nil];
    }

}
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error{
    NSString *errorString;
    NSLog(@"定位失败原因: %@",[error localizedDescription]);
}

5、手机设置中的界面

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（二）、获取蓝牙权限

1、首先在build phase中添加CoreBluetooth.framework

#import <CoreBluetooth/CoreBluetooth.h>   
@interface BlueToothState()<CLLocationManagerDelegate>
@property (nonatomic,strong)CBCentralManager *centralManager;
 -(void)viewDidLoad{
 // 蓝牙检测
    self.centralManager = [[CBCentralManager alloc] initWithDelegate:self queue:nil options:nil];
}

2、实现蓝牙代理

#pragma mark - CLLocationManagerDelegate
//每次蓝牙状态改变都会回调这个函数
- (void)centralManagerDidUpdateState:(CBCentralManager *)central{
    
    if(central.state == CBManagerStatePoweredOn)
    {
        NSLog(@"蓝牙设备开着");
    }
    else if (central.state == CBManagerStatePoweredOff)
    {
        NSLog(@"蓝牙设备关着");
        UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"打开蓝牙,匹配活动" message:nil preferredStyle:UIAlertControllerStyleAlert];
        UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"暂不" style:(UIAlertActionStyleCancel) handler:^(UIAlertAction * _Nonnull action) {
            [self.navigationController popViewControllerAnimated:YES];
        }];
        UIAlertAction *confrmAction = [UIAlertAction actionWithTitle:@"打开" style:(UIAlertActionStyleDefault) handler:^(UIAlertAction * _Nonnull action) {
            NSURL *url = [NSURL URLWithString:@"App-Prefs:root=Bluetooth"];
            if ([[UIApplication sharedApplication]canOpenURL:url]) {
                [[UIApplication sharedApplication]openURL:url options:@{} completionHandler:nil];
            }
        }];
        [alertController addAction:cancelAction];
        [alertController addAction:confrmAction];
        [self presentViewController:alertController animated:YES completion:nil];
        
    }else {
        NSLog(@"该设备蓝牙未授权或者不支持蓝牙功能");
    }
}