iOS 查看照片详情 照片信息

TZImagePickerController 选择照片，在回调方法中查看照片信息，照片详情，查看参数。
TZImagePickerController的代理TZImagePickerControllerDelegate方法
-(void)imagePickerController:(TZImagePickerController *)picker didFinishPickingPhotos:(NSArray<UIImage *> *)photos sourceAssets:(NSArray *)assets isSelectOriginalPhoto:(BOOL)isSelectOriginalPhoto infos:(NSArray<NSDictionary *> *)infos
可以回调到想要的各种参数。

   -(void)imagePickerController:(TZImagePickerController *)picker didFinishPickingPhotos:(NSArray<UIImage *> *)photos sourceAssets:(NSArray *)assets isSelectOriginalPhoto:(BOOL)isSelectOriginalPhoto infos:(NSArray<NSDictionary *> *)infos{
    UIImage * photo = photos.lastObject;
    self.imageView.image =photo;
    NSLog(@"photos = %@ \n assets = %@ \n infos = %@",photos,assets,infos);
    PHAsset * asset = assets[0];
    // 经纬度
    NSLog(@"latitude = %lf   longitude = %lf   ", asset.location.coordinate.latitude,asset.location.coordinate.longitude);
    
    // 海拔
    NSLog(@"altitude = %lf ", asset.location.altitude);
    
    // 类型:照片,视频,
    NSLog(@"mediaType = %ld", asset.mediaType);
    
    //  HRD,LIVE,
    NSLog(@"mediaSubtypes = %ld", asset.mediaSubtypes);
    
    //  创建时间
    NSLog(@"creationDate = %@", asset.creationDate);
    
    //  时间
    NSLog(@"duration = %f", asset.duration);
    
    //像素尺寸
    CGFloat width = photo.size.width;
    CGFloat height = photo.size.height;
    NSLog(@"像素尺寸 imagewidth = %f  imageheight =  %f",width,height);
    

    
    //  图片名称
    NSString *fileName = [asset valueForKey:@"filename"];
    NSLog(@"图片名字:%@",fileName);
    
    // 照片大小
    TZAssetModel * model = [[TZAssetModel alloc]init];
    model.asset = asset;
    [[TZImageManager manager] getPhotosBytesWithArray:@[model] completion:^(NSString *totalBytes) {
        NSLog(@"totalBytes =  %@",totalBytes);
    }];
}

PHImageManager 获取图片信息回调会调两次

  // 获取图片名字
        PHImageManager * imageManager = [PHImageManager defaultManager];
        [imageManager requestImageForAsset:asset targetSize:PHImageManagerMaximumSize contentMode:PHImageContentModeAspectFit options:nil resultHandler:^(UIImage * _Nullable result, NSDictionary * _Nullable info) {
           
//            当前回调会调用两个次,第一次返回你指定尺寸的图片，第二次将会返回原尺寸图片
            if ([[info valueForKey:@"PHImageResultIsDegradedKey"]integerValue]==0){
                //原尺寸图片
            } else {
                //指定尺寸的图片
            }
        }];