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 else
21 {
22 newSizeH = myTextView.contentSize.height + 10;
23 }
24 return newSizeH;
25 }
