Dog
从 iOS10 开始，权限请求开始变成了开发者的又一道门槛，很多开发者在不申请权限的情况下调用 API，这会使 APP 彻底 Crash。接下来，我将附上一部分的权限手动请求代码，帮你快速申请权限。
1、相机权限
#import <AVFoundation/AVFoundation.h>
[AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo
completionHandler:^(BOOL granted) {
NSError *error;
if (granted) {
// WQLogMes(@"开启成功");
}else {
// WQLogErr(@"开启失败");
}
}];
2、位置权限
位置权限请求有点特殊，如果你的 CLLocationManager 对象是在方法内的局部变量，这时你调用权限申请时，会出现权限请求提示框一闪而逝。而解决这个 Bug 的方法就是将局部变量改成全局变量。
2.1 始终定位
在 info.plist 中须加入 NSLocationAlwaysUsageDescription
#import <CoreLocation/CoreLocation.h>
// self.manager 是一个 CLLocationManager 的全局属性
if (!self.manager) {
self.manager = [[CLLocationManager alloc] init];
self.manager.delegate = self;
}
[self.manager requestAlwaysAuthorization];
2.2 使用期间定位
在 info.plist 中须加入 NSLocationWhenInUseUsageDescription
#import <CoreLocation/CoreLocation.h>
// self.manager 是一个 CLLocationManager 的全局属性
if (!self.manager) {
self.manager = [[CLLocationManager alloc] init];
self.manager.delegate = self;
}
[self.manager requestWhenInUseAuthorization];
指定 CLLocationManager 对象的 CLLocationManagerDelegate 代理，当发生授权变更，将会调用 - (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status 方法。
3、日历权限
#import <EventKit/EventKit.h>
EKEventStore *store = [[EKEventStore alloc] init];
[store requestAccessToEntityType:EKEntityTypeEvent
completion:^(BOOL granted,
NSError * _Nullable error) {
if (error) {
// WQLogErr(@"error: %@",error);
}else {
if (granted) {
// WQLogMes(@"请求成功");
}else {
// WQLogErr(@"请求失败");
}
}
}];
4、提醒事项
#import <EventKit/EventKit.h>
EKEventStore *store = [[EKEventStore alloc] init];
[store requestAccessToEntityType:EKEntityTypeReminder
completion:^(BOOL granted,
NSError * _Nullable error) {
if (error) {
// WQLogErr(@"error: %@",error);
}else {
if (granted) {
// WQLogMes(@"请求成功");
}else {
// WQLogErr(@"请求失败");
}
}
}];
5、相册
#import <Photos/Photos.h>
if ([[UIDevice currentDevice].systemVersion floatValue] > 8.0) {
[PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status) {
if (status == PHAuthorizationStatusAuthorized) {
// WQLogMes(@"授权成功");
}else {
// WQLogErr(@"授权失败");
}
}];
}
6、通知
UIUserNotificationSettings *setting = [UIUserNotificationSettings settingsForTypes:
UIUserNotificationTypeSound |
UIUserNotificationTypeAlert |
UIUserNotificationTypeBadge
categories:nil];
[[UIApplication sharedApplication] registerUserNotificationSettings:setting];
7、麦克风
#import <AVFoundation/AVFoundation.h>
AVAudioSession *session = [AVAudioSession sharedInstance];
[session requestRecordPermission:^(BOOL granted) {
if (granted) {
// WQLogMes(@"请求成功");
}else {
// WQLogErr(@"请求失败");
}
}];
8、健康（Health）
if (![HKHealthStore isHealthDataAvailable]) {
// WQLogErr(@"不支持 Health");
return;
}
HKHealthStore *healthStore = [[HKHealthStore alloc] init];
// Share body mass, height and body mass index
NSSet *shareObjectTypes = [NSSet setWithObjects:
[HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierBodyMass],
[HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierHeight],
[HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierBodyMassIndex],
nil];
// Read date of birth, biological sex and step count
NSSet *readObjectTypes = [NSSet setWithObjects:
[HKObjectType characteristicTypeForIdentifier:HKCharacteristicTypeIdentifierDateOfBirth],
[HKObjectType characteristicTypeForIdentifier:HKCharacteristicTypeIdentifierBiologicalSex],
[HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount],
nil];
[healthStore requestAuthorizationToShareTypes:shareObjectTypes
readTypes:readObjectTypes
completion:^(BOOL success,
NSError *error) {
if (error) {
// WQLogErr(@"error: %@",error);
}else {
if(success == YES){
// WQLogMes(@"请求成功");
}
else{
// WQLogErr(@"请求失败");
}
}
}];
9、通讯录
if ([[[UIDevice currentDevice] systemVersion] floatValue] > 9.0) {
CNContactStore *store = [[CNContactStore alloc] init];
[store requestAccessForEntityType:CNEntityTypeContacts
completionHandler:^(BOOL granted,
NSError * _Nullable error) {
if (error) {
// WQLogErr(@"error: %@",error);
}else {
if (granted) {
// WQLogMes(@"请求成功");
}else {
// WQLogErr(@"请求失败");
}
}
}];
}else {
ABAddressBookRef addressBook = ABAddressBookCreate();
ABAddressBookRequestAccessWithCompletion(addressBook,
^(bool granted,
CFErrorRef error) {
if (error) {
// WQLogErr(@"error: %@",error);
}else {
if (granted) {
// WQLogMes(@"请求成功");
}else {
// WQLogErr(@"请求失败");
}
}
});
}
