ios 判断用户是否开启权限---并跳转设置
ios 判断用户是否开启权限---并跳转“系统设置”
1.判断 访问相册 或 相机 权限是否开启
2.检测是否开启定位
后面将持续更新
只有在应用请求过位置权限 或者 通知权限的时候，才会跳进自己app里面的设置呢。不然直接跳到系统设置界面
//打开app定位设置
NSURL *settingsURL = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
if([[UIApplication sharedApplication] canOpenURL:settingsURL]) {
[[UIApplication sharedApplication] openURL:settingsURL];
}
方法/步骤
-
1. =====判断 访问相册 或 相机 权限是否开启====
//在info.plist 里面设置
NSCameraUsageDescription
Privacy - Camera Usage Description App需要您的同意,才能访问相机
NSPhotoLibraryUsageDescription
Privacy - Photo Library Usage Description App需要您的同意,才能访问相册
科普：
//=================相册=======================
//相册权限判断 需要引入框架
#import <Photos/PHPhotoLibrary.h> //相册
===PHAuthorizationStatus===相册权限状态判断
在8.0系统以后，新加入了Photos.framework框架，我们可以利用框架中的PHAuthorizationStatus进行相册权限状态判断。
==判断是否开启相册权限 的4中状态
typedef NS_ENUM(NSInteger,PHAuthorizationStatus) {
//==1. 用户还没有关于这个应用程序做出了选择
PHAuthorizationStatusNotDetermined = 0,
//==2. 这个应用程序未被授权访问图片数据。用户不能更改该应用程序的状态,可能是由于活动的限制,如家长控制到位。
PHAuthorizationStatusRestricted,
//==3. 用户已经明确否认了这个应用程序访问图片数据
PHAuthorizationStatusDenied,
//==4. 用户授权此应用程序访问图片数据
PHAuthorizationStatusAuthorized
}PHOTOS_AVAILABLE_IOS_TVOS(8_0, 10_0);
//========================相机=====================
//相册权限判断 需要引入框架
#import <AVFoundation/AVCaptureDevice.h>#import <AVFoundation/AVMediaFormat.h>
//=======AVAuthorizationStatus====
==判断是否开启相机权限 的4中状态
typedef NS_ENUM(NSInteger, AVAuthorizationStatus) {
//1. 表明用户尚未选择关于客户端是否可以访问硬件
AVAuthorizationStatusNotDetermined = 0,
//2. 客户端未被授权访问硬件的媒体类型。用户不能改变客户机的状态,可能由于活跃的限制,如家长控制
AVAuthorizationStatusRestricted,
//3. 明确拒绝用户访问硬件支持的媒体类型的客户
AVAuthorizationStatusDenied,
//4. 客户端授权访问硬件支持的媒体类型
AVAuthorizationStatusAuthorized
} NS_AVAILABLE_IOS(7_0) __TVOS_PROHIBITED;
=================使用====================
//选择从相册获取图片
//判断状态 如果已经授权 则从相册选取相片
如果没有授权 则跳转到授权设置界面
//选择从相机获取图片
//判断状态 如果已经授权 则打开摄像头
如果没有授权 则跳转到授权设置界面
//引入下面的框架
//相册权限判断 需要引入框架
#import <Photos/PHPhotoLibrary.h> //相册
//相册权限判断 需要引入框架
#import <AVFoundation/AVCaptureDevice.h>#import <AVFoundation/AVMediaFormat.h>
【注意】 控制器要遵循的协议
相册 <UIImagePickerControllerDelegate>
<UINavigationControllerDelegate>
//自定义的枚举
typedef NS_ENUM(NSInteger, ChosePhontType) {
ChosePhontTypeAlbum, //相册
ChosePhontTypeCamera //相机
};
//下面部分可以直接粘贴复制使用
-(void)clickHeaderImageView{ //点击头像
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"选择相片" message:nil preferredStyle:UIAlertControllerStyleActionSheet];
UIAlertAction *album = [UIAlertAction actionWithTitle:@"相册" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
[self chosePhoto:ChosePhontTypeAlbum]; //从系统相册选择照片
}];
UIAlertAction *camera = [UIAlertAction actionWithTitle:@"相机" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
[self chosePhoto:ChosePhontTypeCamera]; //相机
}];
UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
//
}];
[alert addAction:album];
[alert addAction:camera];
[alert addAction:cancel];
[self presentViewController:alert animated:YES completion:^{
}];
}
//==========访问系统 相册 ／ 相机 ===============
- (void)chosePhoto:(ChosePhontType)type{
UIImagePickerController *piker = [[UIImagePickerController alloc] init];
piker.delegate = self;
piker.allowsEditing = YES;
if (type == ChosePhontTypeAlbum) { // 相册
//======判断 访问相册 权限是否开启=======
PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus];
//有被授权访问的照片数据 用户已经明确否认了这一照片数据的应用程序访问
if (status == PHAuthorizationStatusRestricted ||
status == PHAuthorizationStatusDenied) {
//====没有权限====
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"去开启访问相册权限?" message:nil preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
}];
UIAlertAction *ok = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {
//===无权限 引导去开启===
[self openJurisdiction];
}];
// 将UIAlertAction添加到UIAlertController中
[alertController addAction:cancel];
[alertController addAction:ok];
// present显示
[self presentViewController:alertController animated:YES completion:nil];
}else{ //====有访问相册的权限=======
piker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
}
}else if (type == ChosePhontTypeCamera) { // 相机
//======判断 访问相机 权限是否开启=======
AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
//===无权限====
if (authStatus == AVAuthorizationStatusRestricted || authStatus ==AVAuthorizationStatusDenied){
//====没有权限====
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"去开启访问相机权限?" message:nil preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
}];
UIAlertAction *ok = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {
//===无权限 引导去开启===
[self openJurisdiction];
}];
// 将UIAlertAction添加到UIAlertController中
[alertController addAction:cancel];
[alertController addAction:ok];
// present显示
[self presentViewController:alertController animated:YES completion:nil];
}else{ //===有权限======
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) { //相机可用
piker.sourceType = UIImagePickerControllerSourceTypeCamera;
}else{ // 相机不可用
[SVProgressHUD showErrorWithStatus:@"相机不可用"];
return;
}
}
}
[self presentViewController:piker animated:YES completion:^{
}];
}
#pragma mark-------去设置界面开启权限----------
-(void)openJurisdiction{
NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
if ([[UIApplication sharedApplication] canOpenURL:url]) {
[[UIApplication sharedApplication] openURL:url];
}
}
#pragma mark UIImagePickerController回调方法================
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { //选取的照片
//选取的照片
UIImage *image = info[UIImagePickerControllerEditedImage];
_tableViewHeaderView.headerV.image = image;
[self dismissViewControllerAnimated:YES completion:nil];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker { //取消选择
[self dismissViewControllerAnimated:YES completion:nil];
}
-
//2.=======检测是否开启定位======
//在info.plist 里面配置
NSLocationWhenInUseUsageDescription
Privacy - Location When In Use Usage Description App需要使用定位功能
NSLocationAlwaysUsageDescription
Privacy - Location Always Usage Description App需要使用定位功能
引入框架
#import <CoreLocation/CoreLocation.h> //定位
遵循协议 <CLLocationManagerDelegate>
//=========CLAuthorizationStatus=========
typedef NS_ENUM(int, CLAuthorizationStatus) {
//定位服务授权状态是用户没有决定是否使用定位服务
kCLAuthorizationStatusNotDetermined = 0,
//定位服务授权状态是受限制的。可能是由于活动限制定位服务，用户不能改变。这个状态可能不是用户拒绝的定位服务
kCLAuthorizationStatusRestricted,
//定位服务授权状态已经被用户明确禁止，或者在设置里的定位服务中关闭
kCLAuthorizationStatusDenied,
//定位服务授权状态已经被用户允许在任何状态下获取位置信息。包括监测区域、访问区域、或者在有显著的位置变化的时候
kCLAuthorizationStatusAuthorizedAlways NS_ENUM_AVAILABLE(10_12, 8_0),
//定位服务授权状态仅被允许在使用应用程序的时候
kCLAuthorizationStatusAuthorizedWhenInUse NS_ENUM_AVAILABLE(NA, 8_0),
//已被废弃
kCLAuthorizationStatusAuthorized NS_ENUM_DEPRECATED(10_6, NA, 2_0, 8_0, "Use kCLAuthorizationStatusAuthorizedAlways") __TVOS_PROHIBITED __WATCHOS_PROHIBITED = kCLAuthorizationStatusAuthorizedAlways
};
【注意】
//1.
//判断定位是否开启是判断的整个手机系统的定位是否打开,并不是针对这一应用
//[CLLocationManager locationServicesEnabled]
//跳转到 整个手机系统的“定位”设置界面
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"prefs:root=LOCATION_SERVICES"]];
//2.
//跳转至 系统的权限设置界面
NSURL *settingsURL = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
[[UIApplication sharedApplication] openURL:settingsURL];
//================使用=================
引入框架
#import <CoreLocation/CoreLocation.h> //定位
遵循协议 <CLLocationManagerDelegate>
//当前状态
CLAuthorizationStatus status = [CLLocationManager authorizationStatus];
if ([CLLocationManager locationServicesEnabled] && [CLLocationManager authorizationStatus] != kCLAuthorizationStatusDenied) {
//定位开启
}
//全局变量
CLLocationManager * locationManager;
NSString * currentCity; //当前城市
NSString *prv; //当前省
-(void)addLocation{ //开始定位
//判断定位是否开启是判断的整个手机系统的定位是否打开,并不是针对这一应用
//判断定位功能是否打开
if ([CLLocationManager locationServicesEnabled]) {
locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self; //遵循协议
//精确定位
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[locationManager requestWhenInUseAuthorization]; //使用时定位
currentCity = [[NSString alloc] init];
[locationManager startUpdatingLocation]; //开始定位
}
}
#pragma mark CoreLocation delegate----- 定位----
//定位失败则执行此代理方法
//定位失败弹出提示框,点击"打开定位"按钮,会打开系统的设置,提示打开定位服务
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error {
UIAlertController * alertVC = [UIAlertController alertControllerWithTitle:@"允许"定位"提示" message:@"请在设置中打开定位" preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction * ok = [UIAlertAction actionWithTitle:@"打开定位" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
//打开app定位设置
NSURL *settingsURL = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
[[UIApplication sharedApplication] openURL:settingsURL];
}];
UIAlertAction * cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
}];
[alertVC addAction:cancel];
[alertVC addAction:ok];
[self presentViewController:alertVC animated:YES completion:nil];
}
//定位成功
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations {
//
[locationManager stopUpdatingLocation];
CLLocation *currentLocation = [locations lastObject];
CLGeocoder * geoCoder = [[CLGeocoder alloc] init];
//反编码
[geoCoder reverseGeocodeLocation:currentLocation completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
if (placemarks.count > 0) {
CLPlacemark *placeMark = placemarks[0];
currentCity = placeMark.locality;
if (!currentCity) {
currentCity = @"无法定位当前城市";
}
NSLog(@"%@",currentCity); //这就是当前的城市
NSLog(@"%@",placeMark.name);//具体地址: xx市xx区xx街道
//administrativeArea 省
NSLog(@"%@",placeMark.administrativeArea);
}
else if (error == nil && placemarks.count == 0) {
NSLog(@"No location and error return");
}
else if (error) {
NSLog(@"location error: %@ ",error);
}
}];
}
-
//3.=======检测是否允许消息推送======
#import <UserNotifications/UserNotifications.h>
//====方法一
+ (BOOL)isAllowedNotification {
//
if ([UIDevice isSystemVersioniOS8]) { // >= ios8
// system is iOS8
UIUserNotificationSettings *setting = [[UIApplication sharedApplication ] currentUserNotificationSettings];
if (UIUserNotificationTypeNone != setting.types) {
return YES;
}
} else {//iOS7
UIRemoteNotificationType type = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
if(UIRemoteNotificationTypeNone != type) {
return YES;
}else
}
return NO;
}
+ (BOOL)isSystemVersioniOS8 {
//check systemVerson of device
UIDevice *device = [UIDevice currentDevice];
float sysVersion = [device.systemVersion floatValue];
if (sysVersion >= 8.0f) {
return YES;
}
return NO;
}
//====方法二
if ([[UIDevice currentDevice].systemVersion floatValue]>=8.0f) {
UIUserNotificationSettings *setting = [[UIApplication sharedApplication] currentUserNotificationSettings];
if (UIUserNotificationTypeNone == setting.types) {
NSLog(@"推送关闭");
}else{
NSLog(@"推送打开");
}
}else{
UIRemoteNotificationType type = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
if(UIRemoteNotificationTypeNone == type){
NSLog(@"推送关闭");
}else{
NSLog(@"推送打开");
}
}
// 去设置
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
//===方法三
+ (void)isOpenMessageNotificationServiceWithBlock:(ReturnBlock)returnBlock
{
BOOL isOpen = NO;
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_8_0
UIUserNotificationSettings *setting = [[UIApplication sharedApplication] currentUserNotificationSettings];
if (setting.types != UIUserNotificationTypeNone) {
isOpen = YES;
}
#else
UIRemoteNotificationType type = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
if (type != UIRemoteNotificationTypeNone) {
isOpen = YES;
}
#endif
if (returnBlock) {
returnBlock(isOpen);
}
}
//====方法四
+ (void)isOpenMessageNotificationServiceWithBlock:(ReturnBlock)returnBlock
{
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_10_0
[[UNUserNotificationCenter currentNotificationCenter] getNotificationSettingsWithCompletionHandler:^(UNNotificationSettings *settings) {
if (returnBlock) {
returnBlock(settings.authorizationStatus == UNAuthorizationStatusAuthorized);
}
}];
#elif __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_8_0
returnBlock([[UIApplication sharedApplication] isRegisteredForRemoteNotifications]);
#else
UIRemoteNotificationType type = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
if (returnBlock) {
returnBlock(type != UIRemoteNotificationTypeNone);
}
#endif
}
-
//4.
NSContactsUsageDescription -> 通讯录
NSMicrophoneUsageDescription -> 麦克风