iOS权限相关的检测和申请

在iOS开发过程中常用到的权限整理如下：

1. 相册权限检测

PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus];
    switch (status) {
        case PHAuthorizationStatusNotDetermined:
            NSLog(@"用户还未做出任何选择");
            break;
        case PHAuthorizationStatusRestricted:
            NSLog(@"权限收到限制，可能是家长控制权限");
            break;
        case PHAuthorizationStatusDenied:
            NSLog(@"没有授权");
            break;
        case PHAuthorizationStatusAuthorized:
            NSLog(@"已经授权");
            break;
        default:
            break;
    } 

相册权限申请

[PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status) {
        if (status == PHAuthorizationStatusAuthorized) {
            NSLog(@"同意授权");
        }else{
            NSLog(@"未同意或未选择");
        }
    }];

2. 相机权限检测

AVAuthorizationStatus status = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
    if (status == AVAuthorizationStatusAuthorized) {
        NSLog(@"有权限");
    }else{
        NSLog(@"没有");
    }

相机权限申请

[AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
        if (granted) {
            NSLog(@"同意");
        }
    }];

3. 麦克风
   把上面的AVMediaTypeVideo换成AVMediaTypeAudio即可

4. 网络权限
   需要进入头文件#import <CoreTelephony/CTCellularData.h

CTCellularData *cellularData = [CTCellularData new];
    CTCellularDataRestrictedState state = [cellularData restrictedState];
    if (state == kCTCellularDataRestricted) {
        NSLog(@"kCTCellularDataRestricted");
    }else if (state == kCTCellularDataNotRestricted){
        NSLog(@"kCTCellularDataNotRestricted");
    }else{
        NSLog(@"kCTCellularDataRestrictedStateUnknown");
    }

5. 推送权限检测

UIUserNotificationSettings *setting = [[UIApplication sharedApplication] currentUserNotificationSettings];
    switch (setting.types) {
        case UIUserNotificationTypeNone:
            NSLog(@"在收到通知后，应用程序可能不呈现任何UI。");
            break;
        case UIUserNotificationTypeBadge:
            NSLog(@"应用程序可以在收到通知时标记其图标。");
            break;
        case UIUserNotificationTypeSound:
            NSLog(@"应用程序可以在接收到通知时播放声音。");
            break;
        case UIUserNotificationTypeAlert:
            NSLog(@"应用程序可以在接收到通知时显示警报。");
            break;
        default:
            break;
    }

推送权限申请

UIUserNotificationSettings *requeatSet = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert | UIUserNotificationTypeSound | UIUserNotificationTypeBadge categories:nil];
    [[UIApplication sharedApplication] registerUserNotificationSettings:requeatSet];

6. 通讯录权限检测

//ios9之前，检测
    ABAuthorizationStatus status = ABAddressBookGetAuthorizationStatus();
    if (status == kABAuthorizationStatusAuthorized) {
        NSLog(@"有权限");
    }else{
        NSLog(@"没有");
    }

//iOS9及以上，检测
    CNAuthorizationStatus statu = [CNContactStore authorizationStatusForEntityType:CNEntityTypeContacts];
    if (statu == CNAuthorizationStatusAuthorized) {
        NSLog(@"有权限");
    }else{
        NSLog(@"没有");
    }

通讯录权限申请

//ios9之前，申请
ABAddressBookRef ref = ABAddressBookCreate();
    ABAddressBookRequestAccessWithCompletion(ref, ^(bool granted, CFErrorRef error) {
        if (granted) {
            NSLog(@"同意");
        }
    });

//iOS9及以上，申请
CNContactStore *store = [CNContactStore new];
    [store requestAccessForEntityType:CNEntityTypeContacts completionHandler:^(BOOL granted, NSError * _Nullable error) {
        if (granted) {
            NSLog(@"同意");
        }
    }];

7. 定位权限检测
   引入头文件#import <CoreLocation/CoreLocation.h>

CLAuthorizationStatus status = [CLLocationManager authorizationStatus];
    switch (status) {
        case kCLAuthorizationStatusNotDetermined:
            NSLog(@"kCLAuthorizationStatusNotDetermined");
            break;
        case kCLAuthorizationStatusRestricted:
            NSLog(@"kCLAuthorizationStatusRestricted");
            break;
        case kCLAuthorizationStatusDenied:
            NSLog(@"kCLAuthorizationStatusDenied");
            break;
        case kCLAuthorizationStatusAuthorizedAlways:
            NSLog(@"kCLAuthorizationStatusAuthorizedAlways");
            break;
        case kCLAuthorizationStatusAuthorizedWhenInUse:
            NSLog(@"kCLAuthorizationStatusAuthorizedWhenInUse");
            break;
        default:
            break;
    }

定位权限申请

    CLLocationManager *manager = [CLLocationManager new];
    [manager requestAlwaysAuthorization];
    [manager requestWhenInUseAuthorization];
    manager.delegate = self;

//代理方法中判断用户的选择
- (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status{
    switch (status) {
        case kCLAuthorizationStatusNotDetermined:
            NSLog(@"kCLAuthorizationStatusNotDetermined");
            break;
        case kCLAuthorizationStatusRestricted:
            NSLog(@"kCLAuthorizationStatusRestricted");
            break;
        case kCLAuthorizationStatusDenied:
            NSLog(@"kCLAuthorizationStatusDenied");
            break;
        case kCLAuthorizationStatusAuthorizedAlways:
            NSLog(@"kCLAuthorizationStatusAuthorizedAlways");
            break;
        case kCLAuthorizationStatusAuthorizedWhenInUse:
            NSLog(@"kCLAuthorizationStatusAuthorizedWhenInUse");
            break;
        default:
            break;
    }
}