判断iOS应用是否开放HTTP权限的方法

- (BOOL)isHTTPEnable {
 if([[[UIDevice currentDevice] systemVersion] compare:@"9.0" options:NSNumericSearch] != NSOrderedAscending){
 NSDictionary *infoDict = [[NSBundle mainBundle] infoDictionary];
 return [[[infoDict objectForKey:@"NSAppTransportSecurity"] objectForKey:@"NSAllowsArbitraryLoads"] boolValue];
 }
 return YES;
}

if ([self isHTTPEnable]) {
 NSLog(@"HTTP enable");
} else {
 NSLog(@"HTTP disable");
}

func isHTTPEnable() -> Bool {
 let flag = UIDevice.currentDevice().systemVersion.compare("9.0.0", options: NSStringCompareOptions.NumericSearch)
 if (flag != .OrderedAscending) {
 guard let infoDict = NSBundle.mainBundle().infoDictionary else {
 return false
 }
 guard let appTransportSecurity = infoDict["NSAppTransportSecurity"] else {
 return false
 }
 guard let allowsArbitraryLoads = appTransportSecurity["NSAllowsArbitraryLoads"] else {
 return false
 }
 guard let res = allowsArbitraryLoads else {
 return false
 }
 return res as! Bool 
 }
 return true
}

if self.isHTTPEnable() {
 print("HTTP enable")
} else {
 print("HTTP disable")
}