包含许多常见的NSString操作：PJR-NSString-Category
jopen
10年前
通过使用这个NSString Category，您可以执行许多常见的NSString操作。不需要创建任何方法或任何class。import this category in your controller by #import "NSString+PJR.h" and you can perform all NSString operations given in this category like：
//Examples of NSString Category NSString *testStr = @"Hello"; if([testStr isValid]){ NSLog(@"It is a Valid String"); } NSString *blankStr = @" "; if([blankStr isBlank]){ NSLog(@"It is a blank String"); } NSString *noOfWordsStr = @"Number of Words"; NSLog(@"Number of words are :%d",[noOfWordsStr countNumberOfWords]); if([noOfWordsStr containsString:@"of"]){ NSLog(@"YES"); } if([noOfWordsStr isBeginsWith:@"N"]){ NSLog(@"YES"); } if([noOfWordsStr isEndssWith:@"s"]){ NSLog(@"YES"); } NSLog(@"string after replace charcter is :%@",[noOfWordsStr replaceCharcter:@"of" withCharcter:@"offfff"]); NSLog(@"Get substring :%@",[noOfWordsStr getSubstringFrom:1 to:6]); NSLog(@"Add string :%@",[noOfWordsStr addString:@" are 3"]); NSLog(@"Removed string :%@",[noOfWordsStr removeSubString:@"of"]); NSString *letterStr = @"abcd"; NSString *numberStr = @"1234"; NSString *letterNuberStr = @"sdf545"; if([letterStr containsOnlyLetters]){ NSLog(@"Contanis only letters"); } if([numberStr containsOnlyNumbers]){ NSLog(@"Contanis only numbers"); } if([letterNuberStr containsOnlyNumbersAndLetters]){ NSLog(@"Contanis letters and numbers"); } NSArray *array = [NSArray arrayWithObjects:letterStr,numberStr,letterNuberStr, nil]; if([numberStr isInThisarray:array]){ NSLog(@"Yes number string is in this array"); } NSLog(@"String from array is :%@",[NSString getStringFromArray:array]); NSLog(@"Array from String is :%@",[noOfWordsStr getArray]); NSLog(@"My Application Version number is :%@",[NSString getMyApplicationVersion]); NSLog(@"My Application name is :%@",[NSString getMyApplicationName]); if([@"pjr@gmail.com" isValidEmail]){ NSLog(@"It is valid Email"); } if(![@"21323gf" isVAlidPhoneNumber]){ NSLog(@"It is not valid Phone number"); } if([@"http://www.google.com" isValidUrl]){ NSLog(@"It is valid URL"); }