Check Box Button in iOS

I have created a simplest way to create a checkbox in iOS..

download the source code -

https://github.com/tavalarjun/CheckBoxButtonDemo

In that code there is three way we can use the checkbox in iOS..download the code and refer it.

and

1 more way is just you can...

 // when you setup your button, set an image for the selected and normal states

        [myCheckBoxButton setImage:nonCheckedImage forState:UIControlStateSelected];

        [myCheckBoxButton setImage:nonCheckedImage forState:UIControlStateNormal];

        

       

  - (void)myCheckboxToggle:(id)sender

     {

            myCheckboxButton.selected = !myCheckboxButton.selected; // toggle the selected property, just a simple BOOL

     }

how detect ios version

Following way we can detect iOS version 

   NSLog(@"[UIDevice currentDevice].systemName: %@",[UIDevice currentDevice].systemName);

    NSLog(@"[UIDevice currentDevice].systemVersion: %@",[UIDevice currentDevice].systemVersion);

    

    

    if ([[[UIDevice currentDevice] systemVersion] floatValue] < 7.0)

    {

       

        NSLog(@"older than iOS 7 code here");

    } else

    {

        

            NSLog(@"iOS 7 and above  code here");

    }

How can I detect ,my app is running in the iphone simulator?

Following way we can determine the our App is run in simulator

    NSString *model = [[UIDevice currentDevice] model];

    if ([model isEqualToString:@"iPhone Simulator"])

    {

        

         NSLog(@"device is simulator");

    }

or

NSLog(@"My device is  %@",[[UIDevice currentDevice] model]);

How to detect iOS device model by macro

Steps 1]

Define macro's as follows in .pch file or create new header file (like in example Header.h )

#define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)

#define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)

#define IS_RETINA ([[UIScreen mainScreen] scale] >= 2.0)

#define SCREEN_WIDTH ([[UIScreen mainScreen] bounds].size.width)

#define SCREEN_HEIGHT ([[UIScreen mainScreen] bounds].size.height)

#define SCREEN_MAX_LENGTH (MAX(SCREEN_WIDTH, SCREEN_HEIGHT))

#define SCREEN_MIN_LENGTH (MIN(SCREEN_WIDTH, SCREEN_HEIGHT))

#define IS_IPHONE_4_OR_LESS (IS_IPHONE && SCREEN_MAX_LENGTH < 568.0)

#define IS_IPHONE_5 (IS_IPHONE && SCREEN_MAX_LENGTH == 568.0)

#define IS_IPHONE_6 (IS_IPHONE && SCREEN_MAX_LENGTH == 667.0)

#define IS_IPHONE_6P (IS_IPHONE && SCREEN_MAX_LENGTH == 736.0)

Steps 2] use following conditions (to check isRetina Supports or Not / is iPAD or iPhone / which iPhone device model used / Max Screen Length )

 if(IS_IPAD)

    {

        NSLog(@"IT'S IPAD");

    }

    if(IS_IPHONE)

    {

        NSLog(@"IT'S IPHONE");

    }

    

    //retina support

    if(IS_RETINA)

    {

        NSLog(@"RETINA SUPPORTED");

    }

    else

    {

        NSLog(@"RETINA NOT SUPPORTED");

    }

    

    

    

    

    if(IS_IPHONE_4_OR_LESS)

    {

        NSLog(@"IT'S  IPHONE_4_OR_LESS");

    }

    if(IS_IPHONE_5)

    {

        NSLog(@"IT'S IPHONE_5 or 5 IPHONE_5s ");

    }

    if(IS_IPHONE_6)

    {

        NSLog(@"IT'S IPHONE_6");

    }

    if(IS_IPHONE_6P)

    {

        NSLog(@"IT'S IPHONE_6Plus");

    }

    

    NSLog(@"================================================");

    NSLog(@"SCREEN_WIDTH: %.2f", SCREEN_WIDTH);

    NSLog(@"SCREEN_HEIGHT: %.2f", SCREEN_HEIGHT);

    NSLog(@"SCREEN_MAX_LENGTH: %.2f", SCREEN_MAX_LENGTH);

    NSLog(@"SCREEN_MIN_LENGTH: %.2f", SCREEN_MIN_LENGTH);

how to show pdf file or any other document in ios

    //If you are trying to display website or any url contain

    UIWebView *mywebview = [[UIWebView alloc] initWithFrame:CGRectMake(5, 5, 300, 300)];

    NSURL *targetURL = [NSURL URLWithString:@"http://www.google.com"];

    NSURLRequest *request = [NSURLRequest requestWithURL:targetURL];

    [mywebview loadRequest:request];

    

    [self.view addSubview:mywebview];

    

    

    

    // if you have a PDF file or any other file  bundled with your application

    UIWebView *mywebview = [[UIWebView alloc] initWithFrame:CGRectMake(5, 5, 300, 300)];

    

    NSString *path = [[NSBundle mainBundle] pathForResource:@"document" ofType:@"pdf"];

    NSURL *targetURL = [NSURL fileURLWithPath:path];

    NSURLRequest *request = [NSURLRequest requestWithURL:targetURL];

    [mywebview loadRequest:request];