iOS 系统设置隐私中经常使用的功能权限获取
#####1.相册权限git
ALAuthorizationStatus authStatus = [ALAssetsLibrary authorizationStatus];
根据apple的sdk ALAuthorizationStatus 拥有如下状态github
typedef NS_ENUM(NSInteger, ALAuthorizationStatus) {
ALAuthorizationStatusNotDetermined NS_ENUM_DEPRECATED_IOS(6_0, 9_0) = 0, // 用户尚未选择权限
ALAuthorizationStatusRestricted NS_ENUM_DEPRECATED_IOS(6_0, 9_0), // 应用未被受权 用户不能更改该应用程序的状态,可能因为活跃的限制/ /如家长控制到位。
ALAuthorizationStatusDenied NS_ENUM_DEPRECATED_IOS(6_0, 9_0), //用户拒绝应用访问
ALAuthorizationStatusAuthorized NS_ENUM_DEPRECATED_IOS(6_0, 9_0) // 用户容许应用访问
}
ALAuthorizationStatus authStatus = [ALAssetsLibrary authorizationStatus];
if (authStatus == ALAuthorizationStatusDenied || authStatus == ALAuthorizationStatusRestricted) {
if (IS_IOS8_OR_HIGHER && [[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]]) {
failedHandle(true);
return;
}
else {
failedHandle(false);
return;
}
}
succeedHandler();
iOS8 之后能够经过app
PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus];
PHAuthorizationStatus的权限值同上类似，这边就不写了，可查看具体的apple 的sdkasync
#####2.相机权限ide
AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
对应的权限枚举，解析如相册权限。spa
typedef NS_ENUM(NSInteger, AVAuthorizationStatus) {
AVAuthorizationStatusNotDetermined = 0,
AVAuthorizationStatusRestricted,
AVAuthorizationStatusDenied,
AVAuthorizationStatusAuthorized
}
if (authStatus == AVAuthorizationStatusDenied || authStatus == AVAuthorizationStatusRestricted) {
if (IS_IOS8_OR_HIGHER && [[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]]) {
failedHandle (true);
}
else {
failedHandle (false);
}
}
else if(authStatus == AVAuthorizationStatusAuthorized)
{
succeedHandler();
}
else if (authStatus == ALAuthorizationStatusNotDetermined){
[AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
dispatch_async(dispatch_get_main_queue(), ^{
if(granted){
succeedHandler();
}
else {
if (IS_IOS8_OR_HIGHER && [[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]]) {
failedHandle (true);
}
else {
failedHandle (false);
}
}
});
}];
}
#####3.麦克风权限 AVAudioSession 这是个很重要的类 有关音频视频等都会用到它，并且也不是很容易理清楚的，这边就不详说这个类的用处了。code
[[AVAudioSession sharedInstance] requestRecordPermission:^(BOOL granted) {
dispatch_async(dispatch_get_main_queue(), ^{
if (granted) {
succeedHandler();
}
else {
if (IS_IOS8_OR_HIGHER && [[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]]) {
failedHandle(true);
}
else {
failedHandle(false);
}
}
});
}];
- (AVAudioSessionRecordPermission)recordPermission NS_AVAILABLE_IOS(8_0) 这是iOS8 之后开始支持的方法，使用也很是方便简单。 下面说下这个属性的含义：获取当前应用录音权限
typedef NS_OPTIONS(NSUInteger, AVAudioSessionRecordPermission)
{
AVAudioSessionRecordPermissionUndetermined = 'undt’,// 未获取权限
AVAudioSessionRecordPermissionDenied = 'deny’,//拒绝受权
AVAudioSessionRecordPermissionGranted = ‘grant’//赞成受权
}
#####4.定位权限 iOS8之后定位的获取方法有些变更，但也是简单的 [CLLocationManager locationServicesEnabled] 是否启用定位服务 [CLLocationManager authorizationStatus] 获取当前定位的权限值视频
typedef NS_ENUM(int, CLAuthorizationStatus) {
// 用户还没有选择关于这个应用程序
kCLAuthorizationStatusNotDetermined = 0,
//这个应用程序未被受权使用定位服务
kCLAuthorizationStatusRestricted,
// 用户已经明确拒绝受权对于这个应用程序，或在设置里拒绝该应用使用
kCLAuthorizationStatusDenied,
//用户已得到受权使用他们的位置在任什么时候候
kCLAuthorizationStatusAuthorizedAlways NS_ENUM_AVAILABLE(NA, 8_0),
//在使用应用程序的时候受权使用 在前台
kCLAuthorizationStatusAuthorizedWhenInUse NS_ENUM_AVAILABLE(NA, 8_0),
// 这个值是弃用,但至关于 kCLAuthorizationStatusAuthorizedAlways。
kCLAuthorizationStatusAuthorized NS_ENUM_DEPRECATED(10_6, NA, 2_0, 8_0)
};
if (IS_IOS8_OR_HIGHER) {
if ([CLLocationManager locationServicesEnabled] && [CLLocationManager authorizationStatus] != kCLAuthorizationStatusDenied && [CLLocationManager authorizationStatus] != kCLAuthorizationStatusRestricted) {
succeedHandler();
}
else
{
if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]]) {
failedHandle(true);
}
else {
failedHandle(false);
}
}
}
else
{
if ([CLLocationManager locationServicesEnabled]&& ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorized || [CLLocationManager authorizationStatus] == kCLAuthorizationStatusNotDetermined)) {
succeedHandler();
}
else
{
failedHandle(false);
}
}
#####5.通信录权限 通信录的权限获取 iOS8又是个分界点，这里就直接上获取权限的代码了。开发
if (IS_IOS8_OR_HIGHER)
{
if (&ABAddressBookRequestAccessWithCompletion != NULL)
{
ABAddressBookRequestAccessWithCompletion(self.addressBook, ^(bool granted, CFErrorRef error)
{
if (granted) {
succeedHandler();
}
else
{
if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]])
{
failedHandle(true);
}
else {
failedHandle(false);
}
}
});
}
}
else
{
if (&ABAddressBookRequestAccessWithCompletion != NULL)
{
ABAddressBookRequestAccessWithCompletion(self.addressBook, ^(bool granted, CFErrorRef error)
{
if (granted) {
succeedHandler();
}
else
{
failedHandle(false);
}
});
}
}
5.通知权限 [[UIApplication sharedApplication] isRegisteredForRemoteNotifications]// 系统设置总开关 [[UIApplication sharedApplication] currentUserNotificationSettings].types//通知下的各个权限子开关get
typedef NS_OPTIONS(NSUInteger, UIUserNotificationType) {
UIUserNotificationTypeNone = 0, // the application may not present any UI upon a notification being received
UIUserNotificationTypeBadge = 1 << 0, // the application may badge its icon upon a notification being received
UIUserNotificationTypeSound = 1 << 1, // the application may play a sound upon a notification being received
UIUserNotificationTypeAlert = 1 << 2, // the application may display an alert upon a notification being received
}
BOOL pushEnabled;
// 设置里的通知总开关是否打开
BOOL settingEnabled = [[UIApplication sharedApplication] isRegisteredForRemoteNotifications];
// 设置里的通知各子项是否都打开
BOOL subsettingEnabled = [[UIApplication sharedApplication] currentUserNotificationSettings].types != UIUserNotificationTypeNone;
pushEnabled = settingEnabled && subsettingEnabled;
if (pushEnabled) {
succeedHandler();
}
else
{
if ([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]])
{
failedHandle(true);
}
else {
failedHandle(false);
}
}
总结：经过各个功能权限的获取，发现apple对用户隐私愈来愈重视。方法也更完善，iOS8 是一个重要的临界点，开发能够考虑从iOS8开始支持，如
[[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
这句话的做用是判断可否打开设置里该应用的隐私设置，应用直接跳转到设置里 会使用户的体验更好。 [在github上有我对这些的封装使用] https://github.com/weskhen/PaoBa/tree/master/SystemPermission
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