Objective c 在iOS 7中，数字键盘上的“完成”按钮绝对可以，但在iOS 8中则不行。我没有'；除了更新ios8外，不要更改任何内容

错误是-找不到支持键盘iPhone纵向数字广告类型4的键盘平面；使用3876877096_肖像_iPhone-Simple-Pad_默认值

将系统版本定义为大于或等于（v）（[[UIDevice currentDevice]systemVersion]比较：v选项：NSNumericSearch]！=传感器解除搜索）

-（无效）键盘将显示：（NSNotification*）注释
{
//NSLog（@“keyboardwillshow”）；
doneButton=[UIButton按钮类型：UIButtonTypeCustom]；
doneButton.frame=CGRectMake（0,163,106,53）；
doneButton.adjustsImageWhenHighlighted=否；
[完成按钮设置标题：@“完成”状态：UIControlStateNormal]；
[doneButton setTitleColor:[UIColor blackColor]用于状态：UIControlStateNormal]；
[doneButton addTarget:self action:@selector（dismissKeyboard1）for ControlEvents:UIControlEventTouchUpInside]；
如果（系统版本大于或等于（@“7.0”））{
dispatch\u async（dispatch\u get\u main\u queue（）^{
//UIView*键盘视图=[UIApplication sharedApplication]windows]lastObject]子视图]firstObject]；
//[doneButton setFrame:CGRectMake（0，keyboardView.frame.size.height-53106,53）]；
//doneButton.frame=CGRectMake（0，（[UIScreen mainScreen].bounds.size.height-480）+163、106、53）；
doneButton.frame=CGRectMake（0163,106,53）；
UIWindow*tempWindow=[[UIApplication sharedApplication]windows]对象索引：1]；
UIView*键盘；
对于（int i=0；i=3.2）{
如果（[[keyboard description]hasPrefix:@“我在使用此解决方案时也遇到了问题，那么我发现了此问题


您只需添加AddButtonKeyboard方法并在TextFieldEditingDidBegen委托中调用它，您也可以在AddButtonKeyboard方法中声明按钮

- (void)addButtonToKeyboard
{
// create custom button
self.doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
self.doneButton.frame = CGRectMake(0, 163+44, 106, 53);
self.doneButton.adjustsImageWhenHighlighted = NO;
[self.doneButton setTag:67123];
[self.doneButton setImage:[UIImage imageNamed:@"doneup1.png"] forState:UIControlStateNormal];
[self.doneButton setImage:[UIImage imageNamed:@"donedown1.png"] forState:UIControlStateHighlighted];

[self.doneButton addTarget:self action:@selector(doneButton:) forControlEvents:UIControlEventTouchUpInside];

// locate keyboard view
int windowCount = [[[UIApplication sharedApplication] windows] count];
if (windowCount < 2) {
    return;
}

UIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];
UIView* keyboard;

for(int i = 0 ; i < [tempWindow.subviews count] ; i++)
{
    keyboard = [tempWindow.subviews objectAtIndex:i];
    // keyboard found, add the button

    if([[keyboard description] hasPrefix:@"<UIPeripheralHost"] == YES){
        UIButton* searchbtn = (UIButton*)[keyboard viewWithTag:67123];
        if (searchbtn == nil)//to avoid adding again and again as per my requirement (previous and next button on keyboard)
            [keyboard addSubview:self.doneButton];

    }//This code will work on iOS 8.0
    else if([[keyboard description] hasPrefix:@"<UIInputSetContainerView"] == YES){

        for(int i = 0 ; i < [keyboard.subviews count] ; i++)
        {
            UIView* hostkeyboard = [keyboard.subviews objectAtIndex:i];

            if([[hostkeyboard description] hasPrefix:@"<UIInputSetHost"] == YES){
                UIButton* donebtn = (UIButton*)[hostkeyboard viewWithTag:67123];
                if (donebtn == nil)//to avoid adding again and again as per my requirement (previous and next button on keyboard)
                    [hostkeyboard addSubview:self.doneButton];
            }
        }
    }
else{}
}
}

-（无效）添加按钮键盘
{
//创建自定义按钮
self.doneButton=[UIButton-buttonwhithtype:UIButtonTypeCustom]；
self.doneButton.frame=CGRectMake（0,163+44,106,53）；
self.doneButton.adjustsImageWhenHighlighted=否；
[self.doneButton setTag:67123]；
[self.doneButton setImage:[UIImage ImageName:@“doneup1.png”]用于状态：UIControlStateNormal]；
[self.doneButton setImage:[UIImage ImageName:@“donedown 1.png”]用于状态：UIControlStateHighlighted]；
[self.doneButton addTarget:self action:@selector（doneButton:）for controlEvents:UIControlEventTouchUpInside]；
//定位键盘视图
int windowCount=[[UIApplication sharedApplication]windows]计数]；
如果（windowCount<2）{
返回；
}
UIWindow*tempWindow=[[UIApplication sharedApplication]windows]对象索引：1]；
UIView*键盘；
对于（int i=0；i<[tempWindow.subviews计数]；i++）
{
键盘=[tempWindow.subviews objectAtIndex:i]；
//找到键盘后，添加按钮
如果（[[keyboard description]hasPrefix:@“您是否可以添加一个错误日志或书面描述，说明什么“不起作用”？它是否没有显示？它是否崩溃？请尽可能多地提供信息，但不要过于宽泛或模糊
- (void)addButtonToKeyboard
{
// create custom button
self.doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
self.doneButton.frame = CGRectMake(0, 163+44, 106, 53);
self.doneButton.adjustsImageWhenHighlighted = NO;
[self.doneButton setTag:67123];
[self.doneButton setImage:[UIImage imageNamed:@"doneup1.png"] forState:UIControlStateNormal];
[self.doneButton setImage:[UIImage imageNamed:@"donedown1.png"] forState:UIControlStateHighlighted];

[self.doneButton addTarget:self action:@selector(doneButton:) forControlEvents:UIControlEventTouchUpInside];

// locate keyboard view
int windowCount = [[[UIApplication sharedApplication] windows] count];
if (windowCount < 2) {
    return;
}

UIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];
UIView* keyboard;

for(int i = 0 ; i < [tempWindow.subviews count] ; i++)
{
    keyboard = [tempWindow.subviews objectAtIndex:i];
    // keyboard found, add the button

    if([[keyboard description] hasPrefix:@"<UIPeripheralHost"] == YES){
        UIButton* searchbtn = (UIButton*)[keyboard viewWithTag:67123];
        if (searchbtn == nil)//to avoid adding again and again as per my requirement (previous and next button on keyboard)
            [keyboard addSubview:self.doneButton];

    }//This code will work on iOS 8.0
    else if([[keyboard description] hasPrefix:@"<UIInputSetContainerView"] == YES){

        for(int i = 0 ; i < [keyboard.subviews count] ; i++)
        {
            UIView* hostkeyboard = [keyboard.subviews objectAtIndex:i];

            if([[hostkeyboard description] hasPrefix:@"<UIInputSetHost"] == YES){
                UIButton* donebtn = (UIButton*)[hostkeyboard viewWithTag:67123];
                if (donebtn == nil)//to avoid adding again and again as per my requirement (previous and next button on keyboard)
                    [hostkeyboard addSubview:self.doneButton];
            }
        }
    }
else{}
}
}

- (void)removeButtonFromKeyboard
{
NSArray *arTemp = [[UIApplication sharedApplication] windows];
if ([arTemp count] <= 1) return;
UIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];
UIView* keyboard;
for(int i=0; i<[tempWindow.subviews count]; i++)
{
    keyboard = [tempWindow.subviews objectAtIndex:i];
    // keyboard found, add the button
    if ([[keyboard description] hasPrefix:@"<UIPeripheralHost"] == YES)
    {
        for (id temp in keyboard.subviews)
        {
            if ([temp isKindOfClass:[UIButton class]])
            {
                UIButton *btnDone = (UIButton*) temp;
                [btnDone removeFromSuperview];
                break;
            }
        }
    }
    //This code will work on iOS 8.0
    else if([[keyboard description] hasPrefix:@"<UIInputSetContainerView"] == YES)
    {
        for(int i = 0 ; i < [keyboard.subviews count] ; i++)
        {
            UIView* hostkeyboard = [keyboard.subviews objectAtIndex:i];
            if([[hostkeyboard description] hasPrefix:@"<UIInputSetHost"] == YES)
            {
                for (id temp in hostkeyboard.subviews)
                {
                    if ([temp isKindOfClass:[UIButton class]])
                    {
                        UIButton *btnNext = (UIButton*) temp;
                        [btnNext removeFromSuperview];
                        break;
                    }
                }
            }
        }
    }
    else{}
}
}