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2014/10/15 ¤U¤È 10:15:23
iphone Programming Glossary: uiscreenHow to develop or migrate apps for iPhone 5 screen resolution? http://stackoverflow.com/questions/12395200/how-to-develop-or-migrate-apps-for-iphone-5-screen-resolution you have to do for the larger screen specifically then it looks like you have to check height of UIScreen mainScreen bounds or applicationFrame but then you need to consider status bar height if it's present.. height if it's present as there seems to be no specific API for that. Example CGRect screenBounds UIScreen mainScreen bounds if screenBounds.size.height 568 code for 4 inch screen else code for 3.5 inch screen..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices That said if you really need to detect the iPhone 5 you can simply rely on the screen size . UIScreen mainScreen bounds .size.height The iPhone 5's screen has a height of 568. You can imagine a macro to.. a height of 568. You can imagine a macro to simplify all of this #define IS_IPHONE_5 fabs double UIScreen mainScreen bounds .size.height double 568 DBL_EPSILON The use of fabs with the epsilon is here to prevent.. set of macros. Let's rename the original macro IS_WIDESCREEN #define IS_WIDESCREEN fabs double UIScreen mainScreen bounds .size.height double 568 DBL_EPSILON And let's add model detection macros #define IS_IPHONE..
How to take a screenshot programmatically http://stackoverflow.com/questions/2200736/how-to-take-a-screenshot-programmatically @ foo.png atomically YES UPDATE April 2011 for retina display change the first line into this if UIScreen mainScreen respondsToSelector @selector scale UIGraphicsBeginImageContextWithOptions self.window.bounds.size.. @selector scale UIGraphicsBeginImageContextWithOptions self.window.bounds.size NO UIScreen mainScreen .scale else UIGraphicsBeginImageContext self.window.bounds.size share improve this answer..
Objective-C - When to use 'self' http://stackoverflow.com/questions/2385980/objective-c-when-to-use-self bundle nil self.mainViewController aController aController release mainViewController.view.frame UIScreen mainScreen .applicationFrame window addSubview mainViewController view window makeKeyAndVisible When.. mainViewController 's frame is set the self keyword is not required mainViewController.view.frame UIScreen mainScreen .applicationFrame If I remove the self keyword from the first example the program crashes.. where your accessing the frame you're still calling a setter method mainViewController.view.frame UIScreen mainScreen .applicationFrame expands to mainViewController view setFrame UIScreen mainScreen applicationFrame..
http://stackoverflow.com/questions/3504173/detect-retina-display the currentDevice has an high resolution display retina The best way I've found to do it now is if UIScreen mainScreen respondsToSelector @selector scale YES UIScreen mainScreen scale 2.00 RETINA DISPLAY iphone.. best way I've found to do it now is if UIScreen mainScreen respondsToSelector @selector scale YES UIScreen mainScreen scale 2.00 RETINA DISPLAY iphone ios4 retina display share improve this question In.. display reliably on all iOS devices you need to check if the device is running iOS4 and if the UIScreen mainScreen .scale property is equal to 2.0. You CANNOT assume a device is running iOS4 if the scale..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel layer.bounds.size.width 180 2 10 layer.bounds.size.height 30 2 10 180 30 _textLayer.contentsScale UIScreen mainScreen scale looks nice in retina displays too _textLayer.alignmentMode kCAAlignmentCenter layer..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample NSLog @ AppDelegate app did finish launching self.window UIWindow alloc initWithFrame UIScreen mainScreen bounds autorelease Override point for customization after application launch. if UIDevice..
http://stackoverflow.com/questions/8146253/animate-change-of-view-controllers-without-using-navigation-controller-stack-su didFinishLaunchingWithOptions NSDictionary launchOptions self.window UIWindow alloc initWithFrame UIScreen mainScreen bounds MyViewController vc MyViewContoller alloc init... self.transitionController TransitionController..
Transparent Modal View on Navigation Controller http://stackoverflow.com/questions/849458/transparent-modal-view-on-navigation-controller the modal view directly to the view hierarchy like so UIView modalView UIView alloc initWithFrame UIScreen mainScreen bounds autorelease modalView.opaque NO modalView.backgroundColor UIColor blackColor colorWithAlphaComponent..
How to develop or migrate apps for iPhone 5 screen resolution? http://stackoverflow.com/questions/12395200/how-to-develop-or-migrate-apps-for-iphone-5-screen-resolution want to support iOS 6 going forward. If there is something you have to do for the larger screen specifically then it looks like you have to check height of UIScreen mainScreen bounds or applicationFrame but then you need to consider status bar height if it's present as there seems to be no specific API for that. Example CGRect.. or applicationFrame but then you need to consider status bar height if it's present as there seems to be no specific API for that. Example CGRect screenBounds UIScreen mainScreen bounds if screenBounds.size.height 568 code for 4 inch screen else code for 3.5 inch screen Also note The auto rotation API has changed completely take..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices Edit As iOS 6 is now out check the new AutoLayout capabilities. That said if you really need to detect the iPhone 5 you can simply rely on the screen size . UIScreen mainScreen bounds .size.height The iPhone 5's screen has a height of 568. You can imagine a macro to simplify all of this #define IS_IPHONE_5 fabs double UIScreen.. mainScreen bounds .size.height The iPhone 5's screen has a height of 568. You can imagine a macro to simplify all of this #define IS_IPHONE_5 fabs double UIScreen mainScreen bounds .size.height double 568 DBL_EPSILON The use of fabs with the epsilon is here to prevent precision errors when comparing floating points as pointed.. touch will maybe also have such a screen so we may use another set of macros. Let's rename the original macro IS_WIDESCREEN #define IS_WIDESCREEN fabs double UIScreen mainScreen bounds .size.height double 568 DBL_EPSILON And let's add model detection macros #define IS_IPHONE UIDevice currentDevice model isEqualToString @ iPhone..
How to take a screenshot programmatically http://stackoverflow.com/questions/2200736/how-to-take-a-screenshot-programmatically NSData data UIImagePNGRepresentation image data writeToFile @ foo.png atomically YES UPDATE April 2011 for retina display change the first line into this if UIScreen mainScreen respondsToSelector @selector scale UIGraphicsBeginImageContextWithOptions self.window.bounds.size NO UIScreen mainScreen .scale else UIGraphicsBeginImageContext..
Objective-C - When to use 'self' http://stackoverflow.com/questions/2385980/objective-c-when-to-use-self MainViewController alloc initWithNibName @ MainView bundle nil self.mainViewController aController aController release mainViewController.view.frame UIScreen mainScreen .applicationFrame window addSubview mainViewController view window makeKeyAndVisible When mainViewController is assigned to aController the self keyword.. self.mainViewController aController However when the mainViewController 's frame is set the self keyword is not required mainViewController.view.frame UIScreen mainScreen .applicationFrame If I remove the self keyword from the first example the program crashes with the message objc 1296 FREED id message view sent to freed.. new ones updating internal variables and so on. In the case where your accessing the frame you're still calling a setter method mainViewController.view.frame UIScreen mainScreen .applicationFrame expands to mainViewController view setFrame UIScreen mainScreen applicationFrame Ideally to future proof your code you should also..
http://stackoverflow.com/questions/3504173/detect-retina-display Display Does iOS SDK provides an easy way to check if the currentDevice has an high resolution display retina The best way I've found to do it now is if UIScreen mainScreen respondsToSelector @selector scale YES UIScreen mainScreen scale 2.00 RETINA DISPLAY iphone ios4 retina display share improve this question In.. the currentDevice has an high resolution display retina The best way I've found to do it now is if UIScreen mainScreen respondsToSelector @selector scale YES UIScreen mainScreen scale 2.00 RETINA DISPLAY iphone ios4 retina display share improve this question In order to detect the Retina display reliably on all iOS devices.. share improve this question In order to detect the Retina display reliably on all iOS devices you need to check if the device is running iOS4 and if the UIScreen mainScreen .scale property is equal to 2.0. You CANNOT assume a device is running iOS4 if the scale property exists as the iPad 3.2 also contains this property...
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel by a navigation controller _textLayer.frame CGRectMake layer.bounds.size.width 180 2 10 layer.bounds.size.height 30 2 10 180 30 _textLayer.contentsScale UIScreen mainScreen scale looks nice in retina displays too _textLayer.alignmentMode kCAAlignmentCenter layer addSublayer _textLayer Create the attributes for the attributed..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample application didFinishLaunchingWithOptions NSDictionary launchOptions NSLog @ AppDelegate app did finish launching self.window UIWindow alloc initWithFrame UIScreen mainScreen bounds autorelease Override point for customization after application launch. if UIDevice currentDevice userInterfaceIdiom UIUserInterfaceIdiomPhone..
http://stackoverflow.com/questions/8146253/animate-change-of-view-controllers-without-using-navigation-controller-stack-su BOOL application UIApplication application didFinishLaunchingWithOptions NSDictionary launchOptions self.window UIWindow alloc initWithFrame UIScreen mainScreen bounds MyViewController vc MyViewContoller alloc init... self.transitionController TransitionController alloc initWithViewController vc self.window.rootViewController..
Transparent Modal View on Navigation Controller http://stackoverflow.com/questions/849458/transparent-modal-view-on-navigation-controller methods in your root view controller . You can add the modal view directly to the view hierarchy like so UIView modalView UIView alloc initWithFrame UIScreen mainScreen bounds autorelease modalView.opaque NO modalView.backgroundColor UIColor blackColor colorWithAlphaComponent 0.5f UILabel label UILabel alloc init autorelease..
How to develop or migrate apps for iPhone 5 screen resolution? http://stackoverflow.com/questions/12395200/how-to-develop-or-migrate-apps-for-iphone-5-screen-resolution If there is something you have to do for the larger screen specifically then it looks like you have to check height of UIScreen mainScreen bounds or applicationFrame but then you need to consider status bar height if it's present as there seems to.. consider status bar height if it's present as there seems to be no specific API for that. Example CGRect screenBounds UIScreen mainScreen bounds if screenBounds.size.height 568 code for 4 inch screen else code for 3.5 inch screen Also note The auto..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices AutoLayout capabilities. That said if you really need to detect the iPhone 5 you can simply rely on the screen size . UIScreen mainScreen bounds .size.height The iPhone 5's screen has a height of 568. You can imagine a macro to simplify all of this.. iPhone 5's screen has a height of 568. You can imagine a macro to simplify all of this #define IS_IPHONE_5 fabs double UIScreen mainScreen bounds .size.height double 568 DBL_EPSILON The use of fabs with the epsilon is here to prevent precision errors.. so we may use another set of macros. Let's rename the original macro IS_WIDESCREEN #define IS_WIDESCREEN fabs double UIScreen mainScreen bounds .size.height double 568 DBL_EPSILON And let's add model detection macros #define IS_IPHONE UIDevice currentDevice..
How to take a screenshot programmatically http://stackoverflow.com/questions/2200736/how-to-take-a-screenshot-programmatically data writeToFile @ foo.png atomically YES UPDATE April 2011 for retina display change the first line into this if UIScreen mainScreen respondsToSelector @selector scale UIGraphicsBeginImageContextWithOptions self.window.bounds.size NO UIScreen..
Objective-C - When to use 'self' http://stackoverflow.com/questions/2385980/objective-c-when-to-use-self @ MainView bundle nil self.mainViewController aController aController release mainViewController.view.frame UIScreen mainScreen .applicationFrame window addSubview mainViewController view window makeKeyAndVisible When mainViewController.. However when the mainViewController 's frame is set the self keyword is not required mainViewController.view.frame UIScreen mainScreen .applicationFrame If I remove the self keyword from the first example the program crashes with the message objc.. so on. In the case where your accessing the frame you're still calling a setter method mainViewController.view.frame UIScreen mainScreen .applicationFrame expands to mainViewController view setFrame UIScreen mainScreen applicationFrame Ideally to..
http://stackoverflow.com/questions/3504173/detect-retina-display way to check if the currentDevice has an high resolution display retina The best way I've found to do it now is if UIScreen mainScreen respondsToSelector @selector scale YES UIScreen mainScreen scale 2.00 RETINA DISPLAY iphone ios4 retina display.. display retina The best way I've found to do it now is if UIScreen mainScreen respondsToSelector @selector scale YES UIScreen mainScreen scale 2.00 RETINA DISPLAY iphone ios4 retina display share improve this question In order to detect the.. to detect the Retina display reliably on all iOS devices you need to check if the device is running iOS4 and if the UIScreen mainScreen .scale property is equal to 2.0. You CANNOT assume a device is running iOS4 if the scale property exists as the..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel CGRectMake layer.bounds.size.width 180 2 10 layer.bounds.size.height 30 2 10 180 30 _textLayer.contentsScale UIScreen mainScreen scale looks nice in retina displays too _textLayer.alignmentMode kCAAlignmentCenter layer addSublayer _textLayer..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample NSDictionary launchOptions NSLog @ AppDelegate app did finish launching self.window UIWindow alloc initWithFrame UIScreen mainScreen bounds autorelease Override point for customization after application launch. if UIDevice currentDevice userInterfaceIdiom..
http://stackoverflow.com/questions/8146253/animate-change-of-view-controllers-without-using-navigation-controller-stack-su application didFinishLaunchingWithOptions NSDictionary launchOptions self.window UIWindow alloc initWithFrame UIScreen mainScreen bounds MyViewController vc MyViewContoller alloc init... self.transitionController TransitionController alloc..
Transparent Modal View on Navigation Controller http://stackoverflow.com/questions/849458/transparent-modal-view-on-navigation-controller . You can add the modal view directly to the view hierarchy like so UIView modalView UIView alloc initWithFrame UIScreen mainScreen bounds autorelease modalView.opaque NO modalView.backgroundColor UIColor blackColor colorWithAlphaComponent 0.5f..
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