I've got an array containing ALAsset urls (not full ALAsset objects) So each time I start my application I want to check my array to see if it's still up to date...
So I tried
NSData *assetData = [[NSData alloc] initWithContentsOfFile:@"assets-library://asset/asset.PNG?id=1000000001&ext=PNG"];
but assetData is allways nil
thx for the help
Use assetForURL:resultBlock:failureBlock: method of ALAssetsLibrary instead to get the asset from its URL.
// Create assets library
ALAssetsLibrary *library = [[[ALAssetsLibrary alloc] init] autorelease];
// Try to load asset at mediaURL
[library assetForURL:mediaURL resultBlock:^(ALAsset *asset) {
// If asset exists
if (asset) {
// Type your code here for successful
} else {
// Type your code here for not existing asset
}
} failureBlock:^(NSError *error) {
// Type your code here for failure (when user doesn't allow location in your app)
}];