问IOS 6应用程序升级到IOS 7

EN

i Have Got the Answer:
Follow the Step Below to Upgrade Your App From IOS 6 To IOS 7 and its Working Fine in Below Simulator
IOS 6: iPhone , iPad
IOS 7: iPhone 3.5 inch , iPhone 4 inch, iPad

**Follow the Step Below to Upgrade Your App**

First Create Macro in App Delegate.m File

#define iPhone5 @"iPhone 5"
#define iPhone @"iPhone"
#define iPad @"iPad"

#define IS_IPHONE ([[[UIDevice currentDevice]model]hasPrefix:@"iPhone"])
#define IS_IPOD ([[[UIDevice currentDevice]model]hasPrefix:@"iPod touch"])
#define IS_HEIGHT_GET_568 [[UIScreen mainScreen]bounds].size.height==568.0f
#define IS_IPHONE_5 (IS_HEIGHT_GET_568)
#define IS_IPAD ([[[UIDevice currentDevice]model]hasPrefix:@"iPad"])


**Now in Application didFinishLaunching Option Method**

//Check IOS Whether it is IOS 6 OR IOS 7

 NSString *version = [[UIDevice currentDevice] systemVersion];

    NSLog(@"IOS VERSION================%@",version);

    BOOL isAtLeast6 = [version hasPrefix:@"6."];
    BOOL isAtLeast7 = [version hasPrefix:@"7."];

if (isAtLeast6)  // if IOS Version 6 Then
    {
            if (IS_IPAD) //if IOS Version 6 and iPad Then
            {
                NSLog(@"IOS 6 Ipad Called");
                viewController1 = [[[FirstViewController alloc] initWithNibName:@"FirstViewController_iPad" bundle:nil] autorelease];

            }
            else  // if IOS 6 and iPhone The
        {
                NSLog(@"IOS 6 iPhone Called");
                viewController1 = [[[FirstViewController alloc] initWithNibName:@"FirstView" bundle:nil] autorelease];
        }
}
else if (isAtLeast7)
    {
        if (IS_IPHONE_5)
        {
            viewController1 = [[[FirstViewController alloc] initWithNibName:@"FirstView" bundle:nil] autorelease];
            [viewController1 setEdgesForExtendedLayout:UIRectEdgeNone];//Automatically Set UI For IOS 7
            NSLog(@" IOS 7 iPhone Called");

        }
        else
        {
            viewController1 = [[[FirstViewController alloc] initWithNibName:@"FirstView" bundle:nil] autorelease];
            [viewController1 setEdgesForExtendedLayout:UIRectEdgeNone];
        }


    }