当键盘弹起的时候,屏幕适配键盘高度的方法

当我们使用TextFiled或者TextView的时候,经常会因为键盘弹起而挡住编辑区域,而中文键盘因为拼音的缘故会两次调用keyboardWillShow的监听,现在我贴出一个我自己理解的方式

[objc] view plaincopyprint?

1. <span style="font-size:18px;">  
2. - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil  
3. {  
4.     self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];  
5.     if (self) {  
6.         // Custom initialization  
7.         //加入监听  
8.         [[NSNotificationCenter defaultCenter] addObserver:self  
9.                                                  selector:@selector(keyboardWillShow:)  
10.                                                      name:UIKeyboardWillShowNotification  
11.                                                    object:nil];  
12.           
13.         [[NSNotificationCenter defaultCenter] addObserver:self  
14.                                                  selector:@selector(keyboardWillHide:)  
15.                                                      name:UIKeyboardWillHideNotification  
16.                                                    object:nil];  
17.   
18.           
19.     }  
20.     return self;  
21. }</span>  

[objc] view plaincopyprint?

1. <span style="font-size:18px;">  
2. @property (nonatomic,assign)CGRect              tableViewRect;//设置一个rect来保存你想要升高的view的rect</span>  

[objc] view plaincopyprint?

1. <span style="font-size:18px;">- (void)keyboardWillShow:(NSNotification *)notif {  
2.     self.keyBoardRect = [[notif.userInfo objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];  
3.           
4.         [UIView animateWithDuration:0.5 animations:^{  
5.             CGRect tbRect = self.tableViewRect;  
6.             tbRect.origin.y -=self.keyBoardRect.size.height;  
7.             self.tableView.frame = tbRect;  
8.         } completion:^(BOOL finish){  
9.               
10.         }];  
11.       
12. }  
13.   
14. - (void)keyboardWillHide:(NSNotification *)notif {  
15.       
16.         [UIView animateWithDuration:0.5 animations:^{  
17.               
18.             self.tableView.frame = self.tableViewRect;  
19.         } completion:^(BOOL finish){  
20.               
21.         }];  
22.       
23. }</span>  

用一个临时变量来做一个中转,这样就省去了很多复杂的逻辑,这样就算是中文2次弹起,也不会受任何影响