iOS之自动调节输入文本框的高度 

 1 //自动调节输入文本框的高度
 2 
 3 - (void)textViewDidChange:(UITableView *)textView{
 4 
 5     float height;
 6 
 7     if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7) {
 8 
 9         CGRect textFrame = [[self.textView layoutManager] usedRectForTextContainer:[self.textView textContainer]];
10 
11         height = textFrame.size.height;
12 
13     }
14 
15     else{
16 
17         height = self.textView.contentSize.height;
18 
19     }
20 
21     self.textView.frame = CGRectMake(self.textView.frame.origin.x, self.textView.frame.origin.y, self.textView.frame.size.width, height);
22 
23 }
24 
25

 

posted @ 2016-01-28 10:23  Jaycee麦子  阅读(1162)  评论(0)    收藏  举报