? ?[[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(transformView:) name:UIKeyboardWillChangeFrameNotification object:nil];//鍵盤(pán)的彈出

? ? [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];

//鍵盤(pán)的消失

//彈出鍵盤(pán)UIView

-(void)transformView:(NSNotification*)aNSNotification{

? ? //獲取鍵盤(pán)彈出前的Rect

? ? NSValue*keyBoardBeginBounds=[[aNSNotification userInfo]objectForKey:UIKeyboardFrameBeginUserInfoKey];

? ? CGRect beginRect=[keyBoardBeginBounds CGRectValue];

? ? //獲取鍵盤(pán)彈出后的Rect

? ? NSValue*keyBoardEndBounds=[[aNSNotification userInfo]objectForKey:UIKeyboardFrameEndUserInfoKey];

? ? CGRect? endRect=[keyBoardEndBounds CGRectValue];

? ? //獲取鍵盤(pán)位置變化前后縱坐標(biāo)Y的變化值

? ? CGFloat deltaY=endRect.origin.y-beginRect.origin.y;

? ? NSLog(@"看看這個(gè)變化的Y值:%f",deltaY);

? ? //在0.25s內(nèi)完成self.view的Frame的變化，等于是給self.view添加一個(gè)向上移動(dòng)deltaY的動(dòng)畫(huà)

? ? [UIView animateWithDuration:0.25f animations:^{

? ? ? ? self.popView.frame = CGRectMake(0, -50, kScreenWidth, kScreenHeight);

? ? }];

}

//退出鍵盤(pán)UIView

-(void)keyboardWillHide:(NSNotification*)aNSNotification{

? ? [UIView beginAnimations:nil context:nil];

? ? [UIView setAnimationDuration:0.25];

? ? [UIView setAnimationCurve:7];

? ? self.popView.frame = CGRectMake(0, 0, kScreenWidth, kScreenHeight);

? ? [UIView commitAnimations];

}