[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyBoardChange:) name:UIKeyboardWillChangeFrameNotification object:nil];
//實(shí)現(xiàn)接收到通知時的操作
-(void) keyBoardChange:(NSNotification *)note
{
//獲取鍵盤彈出或收回時frame
CGRect keyboardFrame = [note.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
//獲取鍵盤彈出所需時長
float duration = [note.userInfo[UIKeyboardAnimationDurationUserInfoKey] floatValue];
//添加彈出動畫
[UIView animateWithDuration:duration animations:^{
self.tableView.transform = CGAffineTransformMakeTranslation(0, keyboardFrame.origin.y - (mainHeight));
}];
}
