使用PHAsset来获取图像以及视频文件的大小
对于图片资源
[[PHImageManager defaultManager]
requestImageDataForAsset:asset
options:nil
resultHandler:^(NSData *imageData, NSString *dataUTI, UIImageOrientation orientation, NSDictionary *info) {
float imageSize = imageData.length; //convert to Megabytes
imageSize = imageSize/(1024*1024.0);
NSLog(@"%f",imageSize);
}];
对于视频资源
PHVideoRequestOptions *options = [[PHVideoRequestOptions alloc] init];
options.version = PHVideoRequestOptionsVersionOriginal;
[[PHImageManager defaultManager]
requestAVAssetForVideo:asset
options:options
resultHandler:^(AVAsset *asset, AVAudioMix *audioMix, NSDictionary *info) {
if ([asset isKindOfClass:[AVURLAsset class]]) {
AVURLAsset* urlAsset = (AVURLAsset*)asset;
NSNumber *size;
[urlAsset.URL getResourceValue:&size forKey:NSURLFileSizeKey error:nil];
NSLog(@"size is %f",[size floatValue]/(1024.0*1024.0)); //size is 43.703005
}}];
