Get number of lines in UITextView (iOS 7 compat.)

gistfile1.m

id<UITextInputTokenizer> tokenizer = textView.tokenizer;
UITextPosition *pos = textView.endOfDocument;
NSInteger lines = 0;

while (true){
	UITextPosition *lineEnd = [tokenizer positionFromPosition:pos toBoundary:UITextGranularityLine inDirection:UITextStorageDirectionBackward];
	
	if([textView comparePosition:pos toPosition:lineEnd] == NSOrderedSame){
		pos = [tokenizer positionFromPosition:lineEnd toBoundary:UITextGranularityCharacter inDirection:UITextStorageDirectionBackward];
		
		if([textView comparePosition:pos toPosition:lineEnd] == NSOrderedSame) break;
		
		continue;
	}
	
	lines++; pos = lineEnd;
}

how tested is this?

See: http://stackoverflow.com/questions/19123022/uitextview-number-of-lines-ios-7/23856520#23856520

It is not properly works when multiple end line character inside the text. This is solution works for me: http://stackoverflow.com/a/18818036/2739795

work?