获取相机、相册、麦克风、定位等权限，需要提前在info.plist添加获取权限声明，否则会崩溃，提示信息如下：
[access] This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app's Info.plist must contain an NSMicrophoneUsageDescription key with a string value explaining to the user how the app uses this data.
一、相机
首先引入系统库
#import <Photos/PHPhotoLibrary.h>
（1）检测相机权限
首先我们要先了解AVAuthorizationStatus各个枚举的含义
typedef NS_ENUM(NSInteger, ALAuthorizationStatus) {
// 用户还没有关于这个应用程序做出了选择
ALAuthorizationStatusNotDetermined NS_ENUM_DEPRECATED_IOS(6_0, 9_0) = 0, // User has not yet made a choice with regards to this application
// 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。
ALAuthorizationStatusRestricted NS_ENUM_DEPRECATED_IOS(6_0, 9_0), // This application is not authorized to access photo data.
// The user cannot change this application’s status, possibly due to active restrictions
// such as parental controls being in place.
// 用户已经明确否认了这个应用程序访问图片数据
ALAuthorizationStatusDenied NS_ENUM_DEPRECATED_IOS(6_0, 9_0), // User has explicitly denied this application access to photos data.
// 用户授权此应用程序访问图片数据
ALAuthorizationStatusAuthorized NS_ENUM_DEPRECATED_IOS(6_0, 9_0) // User has authorized this application to access photos data.
} NS_DEPRECATED_IOS(6_0, 9_0, "Use PHAuthorizationStatus in the Photos framework instead");
- (void) checkVideoStatus
{
AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
switch (authStatus) {
case AVAuthorizationStatusNotDetermined:
//没有询问是否开启相机
self.videoStatus = @"AVAuthorizationStatusNotDetermined";
break;
case AVAuthorizationStatusRestricted:
//未授权，家长限制
self.videoStatus = @"AVAuthorizationStatusRestricted";
break;
case AVAuthorizationStatusDenied:
//未授权
self.videoStatus = @"AVAuthorizationStatusDenied";
break;
case AVAuthorizationStatusAuthorized:
//玩家授权
self.videoStatus = @"AVAuthorizationStatusAuthorized";
break;
default:
break;
}
(2)获取相机权限---弹出弹框
//授权相机
- (void)videoAuthAction
{
[AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
NSLog(@"%@",granted ? @"相机准许":@"相机不准许");
}];
}
二、相册
首先引入系统库
#import <Photos/PHPhotoLibrary.h>
（1）检测相册权限
//检查照片权限
- (void) checkPhotoStauts{
PHAuthorizationStatus photoAuthorStatus = [PHPhotoLibrary authorizationStatus];
switch (photoAuthorStatus) {
case PHAuthorizationStatusAuthorized:
self.photoLibraryStatus = @"PHAuthorizationStatusAuthorized";
break;
case PHAuthorizationStatusDenied:
self.photoLibraryStatus = @"PHAuthorizationStatusDenied";
break;
case PHAuthorizationStatusNotDetermined:
self.photoLibraryStatus = @"PHAuthorizationStatusNotDetermined";
break;
case PHAuthorizationStatusRestricted:
self.photoLibraryStatus = @"PHAuthorizationStatusRestricted";
break;
default:
break;
}
}
(2)获取相册权限---弹出弹框
//授权照片
- (void)phontLibraryAction{
[PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status) {
}];
}
三、麦克风
首先引入系统库
#import <AVFoundation/AVFoundation.h>
(1)检测麦克风权限
- (void) checkAudioStatus{
AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeAudio];
switch (authStatus) {
case AVAuthorizationStatusNotDetermined:
//没有询问是否开启麦克风
self.audioStatus = @"AVAuthorizationStatusNotDetermined";
break;
case AVAuthorizationStatusRestricted:
//未授权，家长限制
self.audioStatus = @"AVAuthorizationStatusRestricted";
break;
case AVAuthorizationStatusDenied:
//玩家未授权
self.audioStatus = @"AVAuthorizationStatusDenied";
break;
case AVAuthorizationStatusAuthorized:
//玩家授权
self.audioStatus = @"AVAuthorizationStatusAuthorized";
break;
default:
break;
}
}
（2）获取麦克风权限----弹出弹框
[AVCaptureDevice requestAccessForMediaType:AVMediaTypeAudio completionHandler:^(BOOL granted) {
NSLog(@"%@",granted ? @"麦克风准许":@"麦克风不准许");
}];
四、定位---
首先引入系统库
#import <CoreLocation/CLLocationManager.h>
（1）获取定位权限
CLAuthorizationStatus status = [CLLocationManager authorizationStatus]
下面是CLAuthorizationStatus各个值的含义
授权状态为枚举值：
kCLAuthorizationStatusNotDetermined //用户尚未对该应用程序作出选择
kCLAuthorizationStatusRestricted //应用程序的定位权限被限制
kCLAuthorizationStatusAuthorizedAlways //一直允许获取定位
kCLAuthorizationStatusAuthorizedWhenInUse //在使用时允许获取定位
kCLAuthorizationStatusAuthorized //已废弃，相当于一直允许获取定位
kCLAuthorizationStatusDenied //拒绝获取定位
(2)使用高德地图时，遇到了不弹出定位弹框的情况，原因是没有添加下面的两行代码导致
当前项目使用的是高德地图，高德地图更新后，需要设置这两行代码，否则，不会弹出获取权限弹框
[AMapLocationManager updatePrivacyAgree:AMapPrivacyAgreeStatusDidAgree];
[AMapLocationManager updatePrivacyShow:AMapPrivacyShowStatusDidShow privacyInfo:AMapPrivacyInfoStatusDidContain]
