六虎

iOS小技能：授权检测(引导权限开启，监听权限变化执行回调事件。）

作者：

写代码像蔡徐抻

在

携手创造，一起成长！这是我参与「日新方案 8 月更文应战」的第7天，点击检查活动详情

前语

需求：

  1. 新增敞开相册权限引导：在iPhone的”设置-隐私-相片”中答应拜访相片

监听到用户点击不答应: 用户未作出清晰挑选的状况下自己主动恳求了一次权限设置

  1. 新增敞开相机权限引导：在iPhone的”设置-隐私-相机”中答应拜访相机
  2. 新增敞开定位权限引导：请在iPhone的”设置-隐私-定位”中答应拜访地理位置

用户没有对该应用程序作出挑选,安装之后第一次运用定位时，引发体系授权页面，并监听权限改变履行回调事情。

iOS小技能：授权检测(引导权限开启，监听权限变化执行回调事件。）

I 授权检测

1.1 定位权限

检查CLLocationManager的授权状况: [CLLocationManager authorizationStatus

 kCLAuthorizationStatusNotDetermined                  //用户没有对该应用程序作出挑选
 kCLAuthorizationStatusRestricted                     //应用程序的定位权限被限制
 kCLAuthorizationStatusAuthorizedAlways               //一直答应获取定位
 kCLAuthorizationStatusAuthorizedWhenInUse            //在运用时答应获取定位
 kCLAuthorizationStatusAuthorized                     //已废弃，相当于一直答应获取定位
 kCLAuthorizationStatusDenied                         //回绝获取定位

引导权限敞开，监听权限改变履行回调事情

/**
showAlert: 是否弹窗引导
block： 回调
*/
+(BOOL)isHasLocationAuthorityWithisShowAlert:(BOOL)showAlert block:(void (^)(id sender))block {
    CLAuthorizationStatus status = [CLLocationManager authorizationStatus];
    //应用程序的定位权限被限制
    //回绝获取定位
    if (status == kCLAuthorizationStatusRestricted || status == kCLAuthorizationStatusDenied) {
        NSLog(@"NSLog 没有获取地理位置的权限");
        if (showAlert) {
            [LBAlertController showAlertTitle:@"无法运用定位" content:@"请在iPhone的\"设置-隐私-定位\"中答应拜访地理位置。" cancelString:@"撤销" cancleBlock:nil sureString:@"去设置" sureBlock:^{
                // 需要在info.plist中添加 URL types 并设置一项URL Schemes为prefs  IOS10 今后不起作用
                    if([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]]){
                    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
                }
            } currentController:[QCT_Common getCurrentVC]];
        }
        return NO;
    }else if (status == kCLAuthorizationStatusNotDetermined){//用户没有对该应用程序作出挑选,安装之后第一次运用
        CLLocationManager *manager = ERPLBS.shareERPLBS.locationMan;
        ERPLBS.shareERPLBS.block4location = block;// 监听状况改变时，履行的block        
        [manager requestAlwaysAuthorization];
        return NO;
    }
    if(block){// 3. 履行答应之后的定位操作
        block(nil);
    }
    return YES;
}

监听权限改变履行回调事情

- (CLLocationManager *)locationMan{
    if(_locationMan == nil){
        _locationMan = [CLLocationManager new];
        _locationMan.delegate = self;
    }
    return _locationMan;
}
#pragma mark - ******** CLLocationManagerDelegate
- (void)locationManagerDidChangeAuthorization:(CLLocationManager *)manager API_AVAILABLE(ios(14.0), macos(11.0), watchos(7.0), tvos(14.0)){
    CLAuthorizationStatus status = [CLLocationManager authorizationStatus];
    NSLog(@"locationManagerDidChangeAuthorization:%d",status);
    if(status ==kCLAuthorizationStatusAuthorizedAlways|| status == kCLAuthorizationStatusAuthorizedWhenInUse){// 3 ||4
        if(self.block4location){
            self.block4location(nil);
        }
    }
}
- (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status API_DEPRECATED_WITH_REPLACEMENT("-locationManagerDidChangeAuthorization:", ios(4.2, 14.0), macos(10.7, 11.0), watchos(1.0, 7.0), tvos(9.0, 14.0)){
//    nsl
    //kCLAuthorizationStatusAuthorizedAlways
//    kCLAuthorizationStatusAuthorizedWhenInUse
    if(status ==kCLAuthorizationStatusAuthorizedAlways|| status == kCLAuthorizationStatusAuthorizedWhenInUse){//3 ||4
        if(self.block4location){
            self.block4location(nil);
        }
    }
}

1.2 拜访图库权限检测以及引导

监听到用户点击不答应: 用户未作出清晰挑选的状况下自己主动恳求了一次权限设置

去设置相机权限的的时分体系会kill 当前app进程 Message from debugger: Terminated due to signal 9


/**
 监听到用户点击不答应:
 用户未作出清晰挑选的状况下自己主动恳求了一次权限设置
 showAlert：不答应时显现引导
 block： 答应之后的动作，比如保存图片
 */
+(BOOL)isHasPhotoLibraryAuthorityWithisShowAlert:(BOOL)showAlert  block:(void (^)(id sender))block
{
    PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus] ;
//1.  界说局部block：  处理没有权限的状况，显现引导
    BOOL (^block4none)(PHAuthorizationStatus ) = ^ BOOL (PHAuthorizationStatus status ){
        NSLog(@" 没有拜访图库的权限==============");
        if (showAlert) {
            [LBAlertController showAlertTitle:@"无法运用相册" content:@"请在iPhone的\"设置-隐私-相片\"中答应拜访相片。" cancelString:@"撤销" cancleBlock:nil sureString:@"去设置" sureBlock:^{
                // 需要在info.plist中添加 URL types 并设置一项URL Schemes为prefs  IOS10 今后不起作用 else的办法
                    if([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]]){
                    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
                }
            } currentController:[QCT_Common getCurrentVC]];
        }
        return NO;
    };
    switch (status) {
        case PHAuthorizationStatusRestricted:
        case PHAuthorizationStatusDenied : {
            return block4none(status);
        }
            break;
        case PHAuthorizationStatusNotDetermined:{//2. 用户未作出清晰挑选的状况下自己主动恳求了一次权限设置
            [PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus phStatus) {
                if (phStatus == PHAuthorizationStatusRestricted || phStatus == PHAuthorizationStatusDenied) {
                    dispatch_sync(dispatch_get_main_queue(), ^{
                        //改写UI的代码放到主线程履行
                        block4none(status);
                    });
                } else if (phStatus == PHAuthorizationStatusNotDetermined) {
                    // 不处理
                } else {
                    // 履行外围的block
//                    status = QMUIAssetAuthorizationStatusAuthorized;
                    if(block){//履行答应之后的保存图片操作
                        block(nil);
                    }
                }
            }];
            return  NO;
        }
        default:
            break;
    }
    if(block){// 3. 履行答应之后的保存图片操作
        block(nil);
    }
    return  YES;
}

1.3 拜访相机的权限检测


/**
 @param showAlert 是否弹窗引导
 @return 是否有权限
 */
+(BOOL)isHasCameraAuthorityWithisShowAlert:(BOOL)showAlert
{
    AVAuthorizationStatus status = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
    if (status == AVAuthorizationStatusRestricted || status == AVAuthorizationStatusDenied) {
        NSLog(@"LBLog 没有拜访相机的权限");
        if (showAlert) {
            [LBAlertController showAlertTitle:@"无法运用相机" content:@"请在iPhone的\"设置-隐私-相机\"中答应拜访相机。" cancelString:@"撤销" cancleBlock:nil sureString:@"去设置" sureBlock:^{
                // 需要在info.plist中添加 URL types 并设置一项URL Schemes为prefs  IOS10 今后不起作用
                NSURL *url = [NSURL URLWithString:@"prefs:root=Privacy&path=CAMERA"];
                if ([[UIApplication sharedApplication] canOpenURL:url]) {
                    [[UIApplication sharedApplication] openURL:url];
                }else if([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]]){
                    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
                }
            } currentController:[DY_Common getCurrentVC]];
            return NO;
        }else if (status == AVAuthorizationStatusNotDetermined){
            [AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
                if (granted) {
                    NSLog(@"LBLog 获取相机权限正常==============");
                }else{
                    NSLog(@"LBLog 获取相机权限不正常==============");
                }
            }];
        }
    }
    NSLog(@"LBLog 有拜访相机的权限 =============");
    return YES;
}

1.4 iOS蓝牙状况的处理（蓝牙关闭及未授权的处理）

  • iOS蓝牙状况的处理【蓝牙关闭及未授权的处理】

1.5 注意事项

To resolve this issue, please revise your app to provide the associated functionality using public APIs or remove the functionality using the “prefs:root” or “App-Prefs:root” URL scheme.

see also

公众号：iOS逆向

更多文章