1 - (CGFloat)getHeightByTextView:(UITextView *)myTextView withContent:(NSString *)content withFontSize:(CGFloat)size withTextColor:(UIColor *)color 2 { 3     CGFloat newSizeH = 0.; 4     //UITextView的实际高度 5     if ([[[UIDevice currentDevice] systemVersion] floatValue]>=7.0) 6     { 7         //7.0以后需要自己计算高度 8         float fPadding = 16.0; //8.0px x 2 9         10 //        CGSize constraint = CGSizeMake(myTextView.contentSize.width - fPadding,CGFLOAT_MAX);11 //        CGSize size = [self.textView.text sizeWithFont:myTextView.font constrainedToSize:constraint lineBreakMode:NSLineBreakByWordWrapping];12 //        newSizeH = size.height;13         14         CGSize constraint = CGSizeMake(myTextView.contentSize.width - fPadding, CGFLOAT_MAX);15         NSDictionary *attrsDictionary = [NSDictionary dictionaryWithObjectsAndKeys:[UIFont fontWithName:@"Helvetica Neue" size:size],NSFontAttributeName,color,NSForegroundColorAttributeName, nil];16         NSStringDrawingOptions options = NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading;17         CGRect rect = [myTextView.text boundingRectWithSize:constraint options:options  attributes:attrsDictionary context:nil];18         newSizeH = rect.size.height;19     }20     else21     {22         newSizeH = myTextView.contentSize.height + 10;23     }24     return newSizeH;25 }