Obj C - Word Line Truncation - objective-c

Question

I want to show my long text in a UILabel. But, My design having small size of frame for that UILabel. So, i want to truncate my long text like this[see below]:
Ex:
UILabel Text: "I want to show my long text in a UILabel"
Recent Result: [Using lineBreakMode:]
I want to s........a UILabel
I want to s.....
I want to s
Expected Result: "I want to...."
[Note:  I want truncation after the word which can fit within their label frame.]
I hope that you can sense about my expected result. Sorry for my English!.

Answer 1

I am not sure whether there is API for this. If you are not getting answers. You can use the below logic to achieve This is not optimum logic.
-(NSString *) textThatFits:(NSString *) originalText font:(UIFont *) font
{
NSArray *array = [originalText componentsSeparatedByString:#" "];
NSString *stringThatFits;
for (int i = 0 ; i < [array count]; i++)
{
NSString *tempString = [stringThatFits stringByAppendingFormat:#" %#", array[i]];
CGRect boundingRect = [tempString boundingRectWithSize:CGSizeMake(999, 999)
options:NSStringDrawingUsesLineFragmentOrigin
attributes:#{NSFontAttributeName:font}
context:nil];
if (boundingRect.size.width < self.yourLabel.width) {
return stringThatFits;
}
else
{
stringThatFits = tempString;
}
}
return stringThatFits;
}

Answer 2

According to the OP excepted result and the #Naveen logic, I develop the code which works but with some restriction.
Restriction:
Sometimes, extending that label width by adding 10.0 value.
don't give any spaces at begin and end of label text.
Design:
Controls: A UIButton, UITextField, UILabel
Type your text in the UITextField.
Do Action to display your excepted result in the UILabel.
Code:
-(IBAction)actionDisplayTextWithTruncate:(id)sender{
lblFinalResult.frame=CGRectMake(60, 345, 55, 21);
NSString *strGivenText, *strFuncResult, *stringThatFits;
int spaceCount;
//Custom Truncate Function
strGivenText=txtFldGivenText.text;
arrForGivenText_Words = [strGivenText componentsSeparatedByString:#" "];
stringThatFits=#"";
strFuncResult=#"";
for (int i = 0 ; i < [arrForGivenText_Words count]; i++)
{
/* must follow #" %#" - a space before %# */
NSString *tempString = [stringThatFits stringByAppendingFormat:#" %#", arrForGivenText_Words[i]];
CGRect boundingRect = [tempString boundingRectWithSize:CGSizeMake(999, 999) options:NSStringDrawingTruncatesLastVisibleLine attributes:#{NSFontAttributeName:lblFinalResult.font} context:nil];
if (boundingRect.size.width > lblFinalResult.frame.size.width) //Breakpoint1
{
if(i==0){
[lblFinalResult setText:#"..."];
return;
}
else{
for (int j = 0 ; j < i; j++)
{
strFuncResult = [strFuncResult stringByAppendingFormat:#"%# ",arrForGivenText_Words[j]];
NSLog(#"Present_a1: %#", strFuncResult);
}
strFuncResult = [strFuncResult substringToIndex:strFuncResult.length-(strFuncResult.length>0)];
lblFinalResult.frame= CGRectMake(lblFinalResult.frame.origin.x, lblFinalResult.frame.origin.y, lblFinalResult.frame.size.width+10, lblFinalResult.frame.size.height);
strFuncResult=[strFuncResult stringByAppendingString:#"..."];
[lblFinalResult setText:strFuncResult];
return;
}
}
else{
stringThatFits = tempString;
NSLog(#"Present_a2: %#", stringThatFits);
}
}
[lblFinalResult setText:stringThatFits];
}