- (void)viewDidLoad {     [super viewDidLoad];     // Do any additional setup after loading the view from its nib.     // 方法一     if ([self respondsToSelector:@selector(setEdgesForExtendedLayout:...

NSString *version = [UIDevice currentDevice].systemVersion; if (version.doubleValue >= 9.0 && version.doubleValue < 11.0 ) { // 针对 9.0 以上的iOS系统进行处理 self.auto...

@interface StoreTool : NSObject + (instancetype)shareManager; @end #import <StoreKit/StoreKit.h> @interface StoreTool () < SKStoreProductViewControllerDelegate > @end @implementation ...