ios6

问题 Does anybody have a link to a documentation what exactly is randomized in what cases for latest Mac OS (10.7) and iOS (6.0)? I mean. I want to see a list (something like) Code segment (in a case A,B,C) Stack (always) Heap Data segment (never) Preferably with how many bits of randomization each thing has. All I can find is something like: "MacOS Lion implements full ASLR" and in other places "full ASLR is implemented different ways for different operation systems", which is obviously not very

问题 Does anybody have a link to a documentation what exactly is randomized in what cases for latest Mac OS (10.7) and iOS (6.0)? I mean. I want to see a list (something like) Code segment (in a case A,B,C) Stack (always) Heap Data segment (never) Preferably with how many bits of randomization each thing has. All I can find is something like: "MacOS Lion implements full ASLR" and in other places "full ASLR is implemented different ways for different operation systems", which is obviously not very

问题 The identifierForVendor is not supposed to change unless all apps by the vendor are removed from the device. What happens if I have a single application that is updated. Can the identifierForVendor change? Another way of formulating this question is: Is an app upgrade the same as an uninstall and install (at least in some sense)? The reason I ask is that if I install the current version of an app from the App Store, and then "Archive" a new version via XCode and install it over iTunes the

问题 The identifierForVendor is not supposed to change unless all apps by the vendor are removed from the device. What happens if I have a single application that is updated. Can the identifierForVendor change? Another way of formulating this question is: Is an app upgrade the same as an uninstall and install (at least in some sense)? The reason I ask is that if I install the current version of an app from the App Store, and then "Archive" a new version via XCode and install it over iTunes the

问题 The identifierForVendor is not supposed to change unless all apps by the vendor are removed from the device. What happens if I have a single application that is updated. Can the identifierForVendor change? Another way of formulating this question is: Is an app upgrade the same as an uninstall and install (at least in some sense)? The reason I ask is that if I install the current version of an app from the App Store, and then "Archive" a new version via XCode and install it over iTunes the

问题 The identifierForVendor is not supposed to change unless all apps by the vendor are removed from the device. What happens if I have a single application that is updated. Can the identifierForVendor change? Another way of formulating this question is: Is an app upgrade the same as an uninstall and install (at least in some sense)? The reason I ask is that if I install the current version of an app from the App Store, and then "Archive" a new version via XCode and install it over iTunes the

问题 I'm trying to add the new Google Maps API into my iOS application, however it does not use ARC yet. So, checking at the docs I think it's a requirement to have ARC in order for the SDK to work. How could I do that? I mean an option would be activating ARC just for the resources that will work with Google maps. (.xib files, controllers) How could that be done? 回答1: you can disable ARC for individual files by adding a compiler flag -fno-objc-arc This flag tells the compiler that the files are

来源： https://stackoverflow.com/questions/13266304/scroll-view-scrolling-up-down-on-button-click

来源： https://stackoverflow.com/questions/13266304/scroll-view-scrolling-up-down-on-button-click

问题 I'm new to Core Data and as such am not sure if I'm making a mistake. I've downloaded some data from a REST API and it successfully saves the JSON response to disk. I'm trying to process the data and save it persistently using Core Data. NSLog(@"inserted objects: %@", [managedObjectContext insertedObjects]); [managedObjectContext performBlockAndWait:^{ NSError *error = nil; if (![managedObjectContext save:&error]) { NSLog(@"Unable to save context for class %@", className); } else { NSLog(@