alignment for different ios device - ios

Question

I am new to iOS programming. I made an application for iPhone retina 4-inch. Now I want to customise my code in order for it to run on an iPhone retina-3.5 inch and iPhone 5.
I tried to create an if query for self.view.frame.size.width and self.view.frame.size.height, but I get a "Not assignable" error.
Can anyone tell me how to specify conditions for setting up the workspace nicely in all devices? If possible please give me the exact screen-size of all that devices.

Answer 1

You can use this:
CGRect screenBound = [[UIScreen mainScreen] bounds];
CGSize screenSize = screenBound.size;
CGFloat screenWidth = screenSize.width;
CGFloat screenHeight = screenSize.height;
References:
https://developer.apple.com/library/ios/documentation/uikit/reference/UIScreen_Class/Reference/UIScreen.html

Answer 2

You look at the device's screen size (in points) and from that surmise if it's an iPad or iPhone etc., and then use hard-coded values for the screen sizes.
Here's some code to get the screen size:
CGRect screenRect = [[UIScreen mainScreen] bounds];
CGFloat screenWidth = screenRect.size.width;
CGFloat screenHeight = screenRect.size.height;
Be aware that width and height might be swapped, depending on device orientation.

Answer 3

to compare screen size include this macro and use it any where necessary
#define isPhone5 ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone && [UIScreen mainScreen].bounds.size.height == 568)
if you want to compare screen sizes only then reduce the above macro to
#define isiPhone5 ([[UIScreen mainScreen] bounds].size.height == 568)?TRUE:FALSE
For example in your .m file
#import "ViewController.h"
#define isiPhone5 ([[UIScreen mainScreen] bounds].size.height == 568)?TRUE:FALSE //hear u put the macro and use it anywhere in this file
#interface ViewController ()<FootballPlayerDelegate>//confirms to this delegate
#end
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
if(isiPhone5)
{
NSLog(#"I am 4inch screen");
}
else
{
NSLog(#"I am 3.5inch screen");
}
// Do any additional setup after loading the view, typically from a nib.
}

Answer 4

Try this In your .M file:
-(void)viewWillAppear:(BOOL)animated
{
[self willAnimateRotationToInterfaceOrientation:[UIApplication sharedApplication].statusBarOrientation duration:1.0];
UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;
if(orientation == UIInterfaceOrientationLandscapeRight || orientation == UIInterfaceOrientationLandscapeLeft)
{
[self setFrameForLeftAndRightOrientation];
}
else if(orientation == UIInterfaceOrientationPortrait )
{
[self setFrameForPortraitAndUpsideDownOrientation];
}
}
- (void)willAnimateRotationToInterfaceOrientation:
(UIInterfaceOrientation)toInterfaceOrientation
duration:(NSTimeInterval)duration
{
if (toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft || toInterfaceOrientation == UIInterfaceOrientationLandscapeRight)
{
[self setFrameForLeftAndRightOrientation];
}
else if (toInterfaceOrientation == UIInterfaceOrientationPortrait)
{
[self setFrameForPortraitAndUpsideDownOrientation];
}
}
-(void)setFrameForLeftAndRightOrientation
{
if(IS_IPAD)
{
//Write here code for iPad (Landscape mode)
}
else if(IS_IPHONE)
{
if ([[UIScreen mainScreen] bounds].size.height == 568)
{
//Write code here for iPhone 5 (Landscape mode)
}
else
{
//Write code here for iPhone(3.5 inch) (Landscape mode)
}
}
}
-(void)setFrameForPortraitAndUpsideDownOrientation
{
if(IS_IPAD)
{
}
else if(IS_IPHONE)
{
if ([[UIScreen mainScreen] bounds].size.height == 568)
{
}
else
{
}
}
}

Answer 5

#define IS_IPHONE_SIMULATOR ([[[UIDevice currentDevice]model] isEqualToString : #"iPhone Simulator"])
#define IS_IPHONE ([[[UIDevice currentDevice]model] isEqualToString : #"iPhone"])
#define IS_IPOD_TOUCH ([[[UIDevice currentDevice]model] isEqualToString : #"iPod Touch"])
#define IS_HEIGHT_GTE_568 [[UIScreen mainScreen ] bounds].size.height >= 568.0f
#define ITS_IPHONE5 ( IS_HEIGHT_GTE_568 )
if (ITS_IPHONE5)
{
}
else
{
}

Answer 6

Use This Code in project-Prefix.pch file in supporting file folder.
#define IS_IPHONE_SIMULATOR ([[[UIDevice currentDevice]model]
isEqualToString : #"iPhone Simulator"])
#define IS_IPHONE ([[[UIDevice currentDevice]model] isEqualToString : #"iPhone"])
#define IS_IPOD_TOUCH ([[[UIDevice currentDevice]model] isEqualToString : #"iPod Touch"])
#define IS_HEIGHT_GTE_568 [[UIScreen mainScreen ] bounds].size.height >= 568.0f
#define ITS_IPHONE5 ( IS_HEIGHT_GTE_568 )
Copy and Past This Code After That in your .m File past the first code i give you...
Dont need to write size on viewdidload write only in these cots
if (IS_IPAD)
{
}
else if(IS_IPHONE)
{
if ([[UIScreen mainScreen] bounds].size.height == 568)
{
}
else
{
}
}