在textView中输入时避免键盘的遮挡(2)

    [super viewWillAppear:YES]; 
} 
 
//监听事件 
- (void)handleKeyboardDidShow:(NSNotification*)paramNotification 
{ 
    //获取键盘高度 
    NSValue *keyboardRectAsObject=[[paramNotification userInfo]objectForKey:UIKeyboardFrameEndUserInfoKey]; 
     
    CGRect keyboardRect; 
    [keyboardRectAsObject getValue:&keyboardRect]; 
     
    self.textView.contentInset=UIEdgeInsetsMake(0, 0,keyboardRect.size.height, 0); 
} 
 
- (void)handleKeyboardDidHidden 
{ 
    self.textView.contentInset=UIEdgeInsetsZero; 
} 
 
- (void)viewDidDisappear:(BOOL)animated 
{ 
    [[NSNotificationCenter defaultCenter] removeObserver:self]; 
}