iOS - 获取系统相册照片名称,路径以及各项信息

//打开相册
- (void)uploadPhoto
{
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary])
{
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
//设置当前控制器为picker对象的代理
picker.delegate = self;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:picker animated:YES completion:nil];
}
}

//获取照片信息
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info
{

//获取图片的名称
//获取
NSURL *url = [info objectForKey:UIImagePickerControllerReferenceURL];

//导入 #import <AssetsLibrary/AssetsLibrary.h> 库
//创建 ALAssetsLibrary 对象
ALAssetsLibrary *library = [[ALAssetsLibrary alloc]init];

[library assetForURL:url resultBlock:^(ALAsset *asset){

//获取图片
UIImage *image = info[UIImagePickerControllerOriginalImage];
//获取照片名称
NSString *fileName = asset.defaultRepresentation.filename;
//获取照片元数据  ,包含一些RGB什么的
NSString *fileName = asset.defaultRepresentation.metadata;

//获取照片大小比例等等... defaultRepresentation的属性中可以查看
....

//开始上传 (此方法无视 , 这是项目中需要的方法)
[JYCenterAddUploadManager executeUpLoadFileWithFile:image fileParent:@"root" fileName:fileName fileType:JYUpLoadFileTypeImage response:^(JYDownLoadTaskModel *taskModel) {

}];

}failureBlock:^(NSError *error){

[NSObject alertShowWithSingleTipWithtarget:self title:@"获取相册失败" makeSureClick:nil];

}];

[picker dismissViewControllerAnimated:YES completion:nil];
}