iOS键盘弹出的处理

#pragma mark -view自动调整位置

- (void)changeContentViewPosition:(NSNotification *)notification{

    UIWindow *window = [[[UIApplicationsharedApplication]delegate]window];

    [window setBackgroundColor:[UIColorwhiteColor]];

    NSDictionary *dict = [notification userInfo];

    NSValue *value = [dictobjectForKey:UIKeyboardFrameEndUserInfoKey];

    CGFloat keyboardHeight = value.CGRectValue.size.height;

    NSNumber *duration = [dictobjectForKey:UIKeyboardAnimationDurationUserInfoKey];

    NSNumber *curve = [dictobjectForKey:UIKeyboardAnimationCurveUserInfoKey];

    if (self.nameText.isFirstResponder) {

    }elseif(self.wayText.isFirstResponder){

         CGFloat  offsetTop = viewHeight -  CGRectGetMaxY(self.wayHolder.frame);

        if (offsetTop < keyboardHeight) {

            offsetTop = offsetTop - keyboardHeight;

            [UIViewanimateWithDuration:duration.floatValueanimations:^{

                [UIViewsetAnimationBeginsFromCurrentState:YES];

                [UIView setAnimationCurve:curve.intValue];

                self.view.frame =CGRectMake(0, offsetTop,self.view.frame.size.width,self.view.frame.size.height);

            }];

        }

        

    }elseif (self.integralText.isFirstResponder){

        CGFloat  offsetTop = viewHeight -  CGRectGetMaxY(self.integralHolder.frame);

        if (offsetTop < keyboardHeight) {

            offsetTop = offsetTop - keyboardHeight;

            [UIViewanimateWithDuration:duration.floatValueanimations:^{

                [UIViewsetAnimationBeginsFromCurrentState:YES];

                [UIView setAnimationCurve:curve.intValue];

                self.view.frame =CGRectMake(0, offsetTop,self.view.frame.size.width,self.view.frame.size.height);

            }];

        }

        

    }elseif (self.addressText.isFirstResponder){

        CGFloat  offsetTop = viewHeight -  CGRectGetMaxY(self.addressHolder.frame);

        if (offsetTop < keyboardHeight) {

            offsetTop = offsetTop - keyboardHeight;

            [UIViewanimateWithDuration:duration.floatValueanimations:^{

                [UIViewsetAnimationBeginsFromCurrentState:YES];

                [UIView setAnimationCurve:curve.intValue];

                self.view.frame =CGRectMake(0, offsetTop,self.view.frame.size.width,self.view.frame.size.height);

            }];

        }

        

    }elseif (self.declareTextView.isFirstResponder){

        CGFloat  offsetTop = -keyboardHeight+64;

        [UIViewanimateWithDuration:duration.floatValueanimations:^{

            [UIViewsetAnimationBeginsFromCurrentState:YES];

            [UIView setAnimationCurve:curve.intValue];

            self.view.frame =CGRectMake(0, offsetTop,self.view.frame.size.width,self.view.frame.size.height);

        }];

    }

   }

#pragma mark -keyboardWillHide

- (void)resumeContentViewPosition:(NSNotification *)notification{

    NSDictionary *dict = [notification userInfo];

    NSNumber *duration = [dictobjectForKey:UIKeyboardAnimationDurationUserInfoKey];

    NSNumber *curve = [dictobjectForKey:UIKeyboardAnimationCurveUserInfoKey];

    [UIViewanimateWithDuration:duration.doubleValueanimations:^{

        [UIView setAnimationCurve:curve.intValue];

        self.view.frame =CGRectMake(0,viewOriginY,self.view.frame.size.width,self.view.frame.size.height);

    }];

}

我是这样实现的  点击不同的控件 都会根据控件的具体位置计算view需要上移的位置 但是过程中出现了一个BUG,就是每次view上移之前都会先出现一个黑色的方块,哟过户体验非常的不好,我目前是这个解决的,通过设置window的背景色为白色,就是跟你view一样的颜色即可,这样看起来感觉不出有什么BUG