NSString *rawString = [textField text];
NSCharacterSet *whitespace = [NSCharacterSet whitespaceAndNewlineCharacterSet];
NSString *trimmed = [rawString stringByTrimmingCharactersInSet:whitespace];
if ([trimmed length] == 0) {
// Text was empty or only whitespace.
}|
NSString *firstString = @"vijayadhikari";
NSScanner *scanner = [NSScanner scannerWithString: firstString];
NSCharacterSet *countChar = @"a"
NSString *charactersFromString;
if (!([scanner scanCharactersFromSet:countChar intoString:&charactersFromString])) {
NSLog(@"characters not found");
}
NSInteger characterCount = [charactersFromString length];
// should return 3 for this example
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NSString *combined = [string1 stringByAppendingString:string2];
-(BOOL) NSStringIsValidEmail:(NSString *)checkString
{
BOOL stricterFilter = YES; // Discussion http://blog.logichigh.com/2010/09/02/validating-an-e-mail-address/
NSString *stricterFilterString = @"[A-Z0-9a-z\\._%+-]+@([A-Za-z0-9-]+\\.)+[A-Za-z]{2,4}";
NSString *laxString = @".+@([A-Za-z0-9]+\\.)+[A-Za-z]{2}[A-Za-z]*";
NSString *emailRegex = stricterFilter ? stricterFilterString : laxString;
NSPredicate *emailTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", emailRegex];
return [emailTest evaluateWithObject:checkString];
}#import <Twitter/Twitter.h>
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Other C Flags: -DDEBUG=1[[UIApplication sharedApplication] openURL:[NSURL URLWithString: @"prefs:root=LOCATION_SERVICES"]];