Simple Objective-C Tutorial For Developing Apps in IOS
Objective-C is an object-oriented programming language, and is a layer over the C programming language. This means that if you know how to write C, there are only a few syntax changes to learn. In this section, we will look at how we can implement…
There are three distinct approaches to iOS development
Approaches to iOS Development Web Application Development The original iPhone OS 1.0 required all non-Apple applications to be web-based and executed within the Mobile Safari web browser. Because Mobile Safari does not support plugins like Adobe Flash or…
How to prevent SQL Injection in iOS apps?
SQL Injection Application Security is a primary concern of every mobile application developer whether it is iPhone app, iPad app, Universal app in iOS, Android app, Blackberry app, Windows Phone app or tablet app. And most of the vulnerability attacks…
How To Manage NSMutableDictionary And NSMutableArray
//create the dictionary NSMutableDictionary *dictionary = [[NSMutableDictionary alloc] init]; //add keyed data [dictionary setObject:@”Object One” forKey:@”1″]; [dictionary setObject:@”Object Two”…
How to catch a Nan?
How to catch a Nan? NaN is not equal to any value, including NaN, use this property instead of the equal-to operator (==) or not-equal-to operator (!=) to test whether a value is or is not NaN. Nan represents Not a number When it happens to get a…
How To Remove and Replace String within a String.
// Here We Deleting Something NSString *content = @”i am a good boy”; NSCharacterSet *deleteString = [NSCharacterSet characterSetWithCharactersInString:@”good”]; content = [[content componentsSeparatedByCharactersInSet:…
How to validate or Allow Only Numeric value TextField in IOS or objective-c
How to validate or Allow Only Numeric value TextField in IOS or objective-c In whatever UITextField you’re getting these values from, you can specify the kind of keyboard you want to appear when somebody touches inside the text field. Check the…
How to use datatype in IOS or Objective-c
%@ Object %d, %i signed int %u unsigned int %f float/double %x, %X hexadecimal int %o octal int %zu size_t %p pointer %e float/double (in scientific notation) %g float/double (as %f or %e, depending on value) %s C string (bytes) %S C string (unichar)…
What is Protocol Buffer
Protocol Buffers are a method of serializing structured data. As such, they are useful in developing programs to communicate with each other over a wire or for storing data. The method involves an interface description language that describes the…
What is the difference between Objective-C from C++
What is the difference between Objective-C from C++ Also Read : What is Reference Count in Objective-C’s Memory Management. Also Read : What is Delegate Means in Objective-C (IOS Application Development) C++ Allows multiple inheritance…