iphone - Delete an ALAsset -

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i'm using photo viewer , wan't implement trash button.

i have button ready , go following:

how delete alasset??

i tried searching in many places couldn't find answer...

thanks,

for reason i'm not allowed post question i'm adding irrelevant code of trash button:

uibarbuttonitem *trash = [[uibarbuttonitem alloc] initwithbarbuttonsystemitem:uibarbuttonsystemitemtrash target:self action:@selector(trashbuttonhit:)];

you can't delete alasset, there no api this.

an alasset link file in photo library, outside of sandbox of app. assets library allows acces file in photo library read only.


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