问题
Is it possible to launch the "Photos" application from an iPhone app? Similar to launching mail?
[[UIApplication sharedApplication] openURL:url];
回答1:
The Photos app doesn't appear to register any URL schemes that other apps can use. There's a pretty well-established pattern in other system apps (e.g. Safari) of “saving an image” resulting in that image being placed in the user's camera roll; I'd recommend just sticking with that expected behavior, and perhaps using an alert to direct the user to look there for your app's exported image.
回答2:
This article looks like it might be useful? Getting images from the iPhone
来源：https://stackoverflow.com/questions/3187872/open-photos-app-programmatically