选取相片后assets-library的转化

Question

再选取相片后得到下面的信息ALAsset-Type:Photo,URLs:assets-library://asset/asset.JPG?id=9C5EF6C3-0E1C-4F05-B592-CED2203EFE0F&ext=JPG如何把这个信息转化成一个uiimage对象

Answer 1

AssetURL不能转化为image。当用ALAsset获取+(UIImage*)fullResolutionImageFromALAsset:(ALAsset*)asset{ALAssetRepresentation*assetRep=[assetdefaultRepresentation];CGImageRefimgRef=[assetRepfullResolutionImage];UIImage*img=[UIImageimageWithCGImage:imgRefscale:assetRep.scaleorientation:(UIImageOrientation)assetRep.orientation];returnimg;}另使用此库需注意，iOS4、5需向用户申请GPS权限才可访问照片。iOS6下申请相册访问权限才可访问照片。