学步园

NSString *string1 = @"Hi to all!I've this question for you, and i hope you can help me";<br /> CGRect textSize = CGRectMake(0.0, 0.0, 320.0, FLT_MAX);<br /> UIFont *font = [UIFont fontWithName:@"Helvetica-Bold" size:20.0];<br /> UILabel *label = [[UILabel alloc] init];<br /> label.lineBreakMode = UILineBreakModeWordWrap;<br /> // Zero means infinite in this case<br /> label.numberOfLines = 0;<br /> label.font = font;<br /> label.text = string1;<br /> label.frame = [label textRectForBounds:textSize limitedToNumberOfLines:0];<br /> NSLog(@"Frame at width %f height %f", label.frame.size.width, label.frame.size.height);