写在前面
APP开发避免不开系统权限的问题，如何在APP以更加友好的方式向用户展示系统权限，似乎也是开发过程中值得深思的一件事;
那如何提高APP获取iOS系统权限的通过率呢?有以下几种方式:
在用户打开APP时就向用户请求权限;
告知用户授权权限后能够获得好处之后，再向用户请求权限;
在绝对必要的情况下才向用户请求权限，例如：用户访问照片库时请求访问系统相册权限;
在展示系统权限的对话框前，先向用户显示自定义的对话框，若用户选择不允许，默认无操作，若用户选择允许，再展示系统对话框。
上述情况在开发过程中是经常遇到的，不同方式的选择会影响最后用户交互体验。这一点感悟正是源于上一周工作遇到的问题：适配iOS10，如何获取应用联网权限用以管理系统对话框的显示管理。当我把这个问题解决后，感觉有必要将常用的iOS系统权限做一个总结，以便后用。
权限分类
联网权限
相册权限
相机、麦克风权限
定位权限
推送权限
通讯录权限
日历、备忘录权限
联网权限
引入头文件 @import CoreTelephony;
应用启动后，检测应用中是否有联网权限
复制
CTCellularData *cellularData = [[CTCellularData alloc]init]; cellularData.cellularDataRestrictionDidUpdateNotifier = ^(CTCellularDataRestrictedState state){ //获取联网状态 switch (state) { case kCTCellularDataRestricted: NSLog(@"Restricrted"); break; case kCTCellularDataNotRestricted: NSLog(@"Not Restricted"); break; case kCTCellularDataRestrictedStateUnknown: NSLog(@"Unknown"); break; default: break; }; };
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
查询应用是否有联网功能
复制
CTCellularData *cellularData = [[CTCellularData alloc]init]; CTCellularDataRestrictedState state = cellularData.restrictedState; switch (state) { case kCTCellularDataRestricted: NSLog(@"Restricrted"); break; case kCTCellularDataNotRestricted: NSLog(@"Not Restricted"); break; case kCTCellularDataRestrictedStateUnknown: NSLog(@"Unknown"); break; default: break; }
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
相册权限--IOS 9.0之前
导入头文件@import AssetsLibrary;
检查是否有相册权限
复制
ALAuthorizationStatus status = [ALAssetsLibrary authorizationStatus]; switch (status) { case ALAuthorizationStatusAuthorized: NSLog(@"Authorized"); break; case ALAuthorizationStatusDenied: NSLog(@"Denied"); break; case ALAuthorizationStatusNotDetermined: NSLog(@"not Determined"); break; case ALAuthorizationStatusRestricted: NSLog(@"Restricted"); break; default: break; }
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
相册权限--IOS 8.0之后
导入头文件@import Photos;
检查是否有相册权限
复制
PHAuthorizationStatus photoAuthorStatus = [PHPhotoLibrary authorizationStatus]; switch (photoAuthorStatus) { case PHAuthorizationStatusAuthorized: NSLog(@"Authorized"); break; case PHAuthorizationStatusDenied: NSLog(@"Denied"); break; case PHAuthorizationStatusNotDetermined: NSLog(@"not Determined"); break; case PHAuthorizationStatusRestricted: NSLog(@"Restricted"); break; default: break; }
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
![Uploading 144446-b8aca7ba38c5f8c0_695906.png . . .]获取相册权限
复制
[PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status) { if (status == PHAuthorizationStatusAuthorized) { NSLog(@"Authorized"); }else{ NSLog(@"Denied or Restricted"); } }];
1.
2.
3.
4.
5.
6.
7.
相机和麦克风权限
导入头文件@import AVFoundation;
检查是否有相机或麦克风权限
复制
AVAuthorizationStatus AVstatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];//相机权限 AVAuthorizationStatus AVstatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeAudio];//麦克风权限 switch (AVstatus) { case AVAuthorizationStatusAuthorized: NSLog(@"Authorized"); break; case AVAuthorizationStatusDenied: NSLog(@"Denied"); break; case AVAuthorizationStatusNotDetermined: NSLog(@"not Determined"); break; case AVAuthorizationStatusRestricted: NSLog(@"Restricted"); break; default: break; }
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
获取相机或麦克风权限
复制
[AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {//相机权限 if (granted) { NSLog(@"Authorized"); }else{ NSLog(@"Denied or Restricted"); } }]; [AVCaptureDevice requestAccessForMediaType:AVMediaTypeAudio completionHandler:^(BOOL granted) {//麦克风权限 if (granted) { NSLog(@"Authorized"); }else{ NSLog(@"Denied or Restricted"); } }];
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
定位权限
导入头文件@import CoreLocation;
由于iOS8.0之后定位方法的改变，需要在info.plist中进行配置;
检查是否有定位权限
复制
BOOL isLocation = [CLLocationManager locationServicesEnabled]; if (!isLocation) { NSLog(@"not turn on the location"); } CLAuthorizationStatus CLstatus = [CLLocationManager authorizationStatus]; switch (CLstatus) { case kCLAuthorizationStatusAuthorizedAlways: NSLog(@"Always Authorized"); break; case kCLAuthorizationStatusAuthorizedWhenInUse: NSLog(@"AuthorizedWhenInUse"); break; case kCLAuthorizationStatusDenied: NSLog(@"Denied"); break; case kCLAuthorizationStatusNotDetermined: NSLog(@"not Determined"); break; case kCLAuthorizationStatusRestricted: NSLog(@"Restricted"); break; default: break; }
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
获取定位权限
复制
CLLocationManager *manager = [[CLLocationManager alloc] init]; [manager requestAlwaysAuthorization];//一直获取定位信息 [manager requestWhenInUseAuthorization];//使用的时候获取定位信息
1.
2.
3.
在代理方法中查看权限是否改变
复制
- (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status{ switch (status) { case kCLAuthorizationStatusAuthorizedAlways: NSLog(@"Always Authorized"); break; case kCLAuthorizationStatusAuthorizedWhenInUse: NSLog(@"AuthorizedWhenInUse"); break; case kCLAuthorizationStatusDenied: NSLog(@"Denied"); break; case kCLAuthorizationStatusNotDetermined: NSLog(@"not Determined"); break; case kCLAuthorizationStatusRestricted: NSLog(@"Restricted"); break; default: break; } }
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
推送权限
检查是否有通讯权限
复制
UIUserNotificationSettings *settings = [[UIApplication sharedApplication] currentUserNotificationSettings]; switch (settings.types) { case UIUserNotificationTypeNone: NSLog(@"None"); break; case UIUserNotificationTypeAlert: NSLog(@"Alert Notification"); break; case UIUserNotificationTypeBadge: NSLog(@"Badge Notification"); break; case UIUserNotificationTypeSound: NSLog(@"sound Notification'"); break; default: break; }
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
获取推送权限
复制
UIUserNotificationSettings *setting = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge categories:nil]; [[UIApplication sharedApplication] registerUserNotificationSettings:setting];
1.
2.
通讯录权限
iOS9.0之前
导入头文件 @import AddressBook;
检查是否有通讯录权限
复制
ABAuthorizationStatus ABstatus = ABAddressBookGetAuthorizationStatus(); switch (ABstatus) { case kABAuthorizationStatusAuthorized: NSLog(@"Authorized"); break; case kABAuthorizationStatusDenied: NSLog(@"Denied'"); break; case kABAuthorizationStatusNotDetermined: NSLog(@"not Determined"); break; case kABAuthorizationStatusRestricted: NSLog(@"Restricted"); break; default: break; }
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
获取通讯录权限
复制
ABAddressBookRef addressBook = ABAddressBookCreateWithOptions(NULL, NULL); ABAddressBookRequestAccessWithCompletion(addressBook, ^(bool granted, CFErrorRef error) { if (granted) { NSLog(@"Authorized"); CFRelease(addressBook); }else{ NSLog(@"Denied or Restricted"); } });
1.
2.
3.
4.
5.
6.
7.
8.
9.
iOS9.0及以后
导入头文件 @import Contacts;
检查是否有通讯录权限
复制
CNAuthorizationStatus status = [CNContactStore authorizationStatusForEntityType:CNEntityTypeContacts]; switch (status) { case CNAuthorizationStatusAuthorized: { NSLog(@"Authorized:"); } break; case CNAuthorizationStatusDenied:{ NSLog(@"Denied"); } break; case CNAuthorizationStatusRestricted:{ NSLog(@"Restricted"); } break; case CNAuthorizationStatusNotDetermined:{ NSLog(@"NotDetermined"); } break; }
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
获取通讯录权限
复制
CNContactStore *contactStore = [[CNContactStore alloc] init]; [contactStore requestAccessForEntityType:CNEntityTypeContacts completionHandler:^(BOOL granted, NSError * _Nullable error) { if (granted) { NSLog(@"Authorized"); }else{ NSLog(@"Denied or Restricted"); } }];
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
日历、备忘录权限
导入头文件
检查是否有日历或者备忘录权限
复制
typedef NS_ENUM(NSUInteger, EKEntityType) { EKEntityTypeEvent,//日历 EKEntityTypeReminder //备忘 };
1.
2.
3.
4.
复制
EKAuthorizationStatus EKstatus = [EKEventStore authorizationStatusForEntityType:EKEntityTypeEvent]; switch (EKstatus) { case EKAuthorizationStatusAuthorized: NSLog(@"Authorized"); break; case EKAuthorizationStatusDenied: NSLog(@"Denied'"); break; case EKAuthorizationStatusNotDetermined: NSLog(@"not Determined"); break; case EKAuthorizationStatusRestricted: NSLog(@"Restricted"); break; default: break; }
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
获取日历或备忘录权限
复制
EKEventStore *store = [[EKEventStore alloc]init]; [store requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError * _Nullable error) { if (granted) { NSLog(@"Authorized"); }else{ NSLog(@"Denied or Restricted"); } }];
1.
2.
3.
4.
5.
6.
7.
8.
最后一点
素有获取权限的方法，多用于用户第一次操作应用，iOS 8.0之后，将这些设置都整合在一起，并且可以开启或关闭相应的权限。所有的权限都可以通过下面的方法打开：
复制
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
1.
上述的权限多为经常用到的权限，当然不会很全面，大家如有需要其他的权限，可以在下方评论，我会及时加上去的。
希望这篇文章能够给大家的开发带来一些便利。