How to adjust and make the width of a UILabel to fit the text size?

Question

In my project, there is a UILabel with text. The font size is 16pt. The text contents are changed depending on different cases. I hope it can automatically adju

Answer 1

Here's how to do it, suppose the following messageLabel is the label you want to have the desired effect. Now, try these simple line of codes:

    // Set width constraint for label; it's actually the width of your UILabel
    CGFloat constrainedWidth = 240.0f;
    // Calculate space for the specified string
    CGSize sizeOfText = [yourText sizeWithFont:yourFont constrainedToSize:CGSizeMake(constrainedWidth, CGFLOAT_MAX) lineBreakMode:UILineBreakModeWordWrap];
    UILabel *messageLabel = [[UILabel alloc] initWithFrame:CGRectMake(20,20,constrainedWidth,sizeOfText.height)];
    messageLabel.text = yourText;
    messageLabel.numberOfLines = 0;// This will make the label multiline