系统SDK介绍

1. 打开相册选择图片
2. 打开相册选择视频
3. 打开相机拍摄图片
4. 打开相机拍摄视频

配置权限：

在info.plist文件中添加需要的权限

• 相机权限：Privacy - Camera Usage Description 允许此权限才能使用相机功，这样才能录制视频，并且想要保存图片。
• 相册权限：Privacy - Photo Library Usage Description 允许此权限才能使用系统相册。
• 麦克风权限：Privacy - Microphone Usage Description 获取麦克风权限不然会崩，只有允许此权限才能录音。

判断是否权限

#pragma mark - 权限判断
- (BOOL)authorizationCamera {NSString *mediaType = AVMediaTypeVideo;AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:mediaType];if(authStatus == AVAuthorizationStatusRestricted || authStatus == AVAuthorizationStatusDenied){return false;}return true;
}
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配置选项

typedef NS_ENUM(NSInteger, LZSystemPhotoSelectorType) {LZSystemPhotoSelectorTypeVideo, // 选择视频LZSystemPhotoSelectorTypePhoto, // 选择图片
};typedef NS_ENUM(NSInteger, LZSystemOpenDeviceType) {LZSystemOpenDeviceTypeCamera, // 打开相机LZSystemOpenDeviceTypeVideo,  // 打开摄像机
};
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接口文件

#import <Foundation/Foundation.h>NS_ASSUME_NONNULL_BEGINtypedef NS_ENUM(NSInteger, LZSystemPhotoSelectorType) {LZSystemPhotoSelectorTypeVideo, // 选择视频LZSystemPhotoSelectorTypePhoto, // 选择图片
};typedef NS_ENUM(NSInteger, LZSystemOpenDeviceType) {LZSystemOpenDeviceTypeCamera, // 打开相机LZSystemOpenDeviceTypeVideo,  // 打开摄像机
};@interface LZSystemPhotoSelector : NSObject+ (instancetype)selector;/**选择图片或视频@param type 类型@param allowsEditing 是否允许编辑@param resultFile 选择结果，图片是UIImage 视频是NSUrl*/
- (void)lz_openAblumWithType:(LZSystemPhotoSelectorType)type allowsEditing:(BOOL)allowsEditing resultFile:(void(^)(id info))resultFile;/**打开相机或摄像机@param type 类型@param allowsEditing 是否拍摄完成进行编辑@param resultFile 选择结果，图片是UIImage 视频是NSUrl*/
- (void)lz_openDeviceWithType:(LZSystemOpenDeviceType)type allowsEditing:(BOOL)allowsEditing resultFile:(void(^)(id info))resultFile;@endNS_ASSUME_NONNULL_END
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实现文件

#import "LZSystemPhotoSelector.h"
#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>
#import <AssetsLibrary/AssetsLibrary.h>
#import <MobileCoreServices/MobileCoreServices.h>#define kRootViewController UIApplication.sharedApplication.delegate.window.rootViewController@interface LZSystemPhotoSelector () <UIImagePickerControllerDelegate, UINavigationControllerDelegate>@property (nonatomic, copy) void (^resultFile)(id info);
@property (nonatomic, assign) BOOL allowsEditing;@end@implementation LZSystemPhotoSelector+ (instancetype)selector {static dispatch_once_t onceToken;static LZSystemPhotoSelector *selector;dispatch_once(&onceToken, ^{selector = [[LZSystemPhotoSelector alloc] init];});return selector;
}#pragma mark - 选择图片或视频
- (void)lz_openAblumWithType:(LZSystemPhotoSelectorType)type allowsEditing:(BOOL)allowsEditing resultFile:(void(^)(id info))resultFile {if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {resultFile(@"该设备暂时不支持");return;}self.allowsEditing = allowsEditing;self.resultFile = resultFile;UIImagePickerController *controller = [[UIImagePickerController alloc] init];controller.delegate = self;controller.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;if (type == LZSystemPhotoSelectorTypePhoto) {controller.mediaTypes = [NSArray arrayWithObjects:@"public.image", nil];} else {controller.mediaTypes = [NSArray arrayWithObjects:@"public.movie", nil];}controller.allowsEditing = allowsEditing;[kRootViewController presentViewController:controller animated:true completion:nil];
}#pragma mark - 打开相机或摄像机
- (void)lz_openDeviceWithType:(LZSystemOpenDeviceType)type allowsEditing:(BOOL)allowsEditing resultFile:(void (^)(id _Nonnull))resultFile {if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {resultFile(@"该设备暂时不支持");return;}if (![self authorizationCamera]) {resultFile(@"暂无相机权限");return;}self.allowsEditing = allowsEditing;self.resultFile = resultFile;UIImagePickerController *controller = [[UIImagePickerController alloc] init];controller.delegate = self;controller.sourceType = UIImagePickerControllerSourceTypeCamera;if (type == LZSystemOpenDeviceTypeCamera) {controller.mediaTypes = [NSArray arrayWithObjects:@"public.image", nil];} else {controller.mediaTypes = [NSArray arrayWithObjects:@"public.movie", nil];}controller.allowsEditing = allowsEditing;[kRootViewController presentViewController:controller animated:true completion:nil];
}#pragma mark - UIImagePickerControllerDelegate
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info {NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {if (self.allowsEditing) {UIImage *editorImage = info[UIImagePickerControllerEditedImage];self.resultFile(editorImage);} else {UIImage *editorImage = info[UIImagePickerControllerOriginalImage];self.resultFile(editorImage);}} else {NSURL *url = info[UIImagePickerControllerMediaURL];self.resultFile(url);}[picker dismissViewControllerAnimated:true completion:nil];
}- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {[picker dismissViewControllerAnimated:true completion:nil];
}#pragma mark - 权限判断
- (BOOL)authorizationCamera {NSString *mediaType = AVMediaTypeVideo;AVAuthorizationStatus authStatus = [AVCaptureDevice authorizationStatusForMediaType:mediaType];if(authStatus == AVAuthorizationStatusRestricted || authStatus == AVAuthorizationStatusDenied){return false;}return true;
}
@end
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