i have text message and I want to check whether it is containing text "http" or URL exists in that.
How will I check it?
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3 Answers
NSString *string = @"xxx http://someaddress.com";
NSString *substring = @"http:";
Case sensitive example:
NSRange textRange = [string rangeOfString:substring];
if(textRange.location != NSNotFound){
//Does contain the substring
}else{
//Does not contain the substring
}
Case insensitive example:
NSRange textRange = [[string lowercaseString] rangeOfString:[substring lowercaseString]];
if(textRange.location != NSNotFound){
//Does contain the substring
}else{
//Does not contain the substring
}
Comments
@Cyprian offers a good option.
You could also consider using a NSRegularExpression which would give you far more flexibility assuming that's what you need, e.g. if you wanted to match http:// and https://.
Comments
Url usually has http or https in it
You can use your custom method containsString to check for those strings.
- (BOOL)containsString:(NSString *)string {
return [self containsString:string caseSensitive:NO];
}
- (BOOL)containsString:(NSString*)string caseSensitive:(BOOL)caseSensitive {
BOOL contains = NO;
if (![NSString isNilOrEmpty:self] && ![NSString isNilOrEmpty:string]) {
NSRange range;
if (!caseSensitive) {
range = [self rangeOfString:string options:NSCaseInsensitiveSearch];
} else {
range = [self rangeOfString:string];
}
contains = (range.location != NSNotFound);
}
return contains;
}
Example :
[yourString containsString:@"http"]
[yourString containsString:@"https"]
