连接蓝牙输入设备时显示软键盘（iPad）

发布于 2024-10-01 12:08:06 字数 782 浏览 5 评论 0原文

我真的很头疼，因为当有蓝牙输入设备连接到 iPad 时，我找不到显示软键盘的方法。我在网上做了一些搜索，结果如下：

stackoverflow 上的一个问题，答案很简短如何检测 iPad 上是否存在外部键盘？
由 erica Sadun 为 cydia env 开发的应用程序 http://www.tuaw.com/2010/06/02/hacksugar-bringing-back-the-on -screen-keyboard/

Erica 说，诀窍是回答系统“没有连接硬件键盘”。我尝试为 UIKeyboardImpl 编写一个类别，并覆盖：

- (BOOL)isInHardwareKeyboardMode {
    DEBUG(@"is called");
    return NO;
}

但到目前为止我还没有获得任何东西。调用了重写的方法，但没有软键盘。埃里卡还说该应用程序通过动态链接工作，但我不知道如何实现它。我不需要进入 AppStore，因为这是一个私人应用程序，所以我不用担心被拒绝。

提前致谢

原文

I'm really bangin' my head because I can't find the way to show the soft keyboard when there's a bluetooth input device connected to the iPad. I made some search on the web and this is the result:

a question on stackoverflow with a very short answer How can I detect if an external keyboard is present on an iPad?
an application developed by erica sadun for the cydia env http://www.tuaw.com/2010/06/02/hacksugar-bringing-back-the-on-screen-keyboard/

Erica said that the trick is to answer to the system that "There's no hardware keyboard attached".
I tried to write a category for UIKeyboardImpl and I overrided:

- (BOOL)isInHardwareKeyboardMode {
    DEBUG(@"is called");
    return NO;
}

But until now I haven't obtained anything. The overrided method is called but there's no soft keyboard.
Erica also said the application works by dynamic linking but I don't know how can I accomplish it. I don't need to be in the AppStore because this is a private application so I don't bother about rejection.

Thanks in advance

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清浅ˋ旧时光 2024-10-08 12:08:06

好的。终于明白了。非常感谢大卫、马蒂亚斯和恩里科。步骤如下：

导入私有框架 GraphicsServices
在 viewDidLoad 中调用 GSEventSetHardwareKeyboardAttached(NO)

添加一个通过调用切换键盘的按钮

静态无效toggleKeyboard（UIKeyboardImpl * keyImpl）{
如果（UIKeyboardAutomaticIsOnScreen（））{
    UIKeyboardOrderOutAutomatic();
} 别的 {
    UIKeyboardOrderInAutomatic();
}

添加一个按钮，通过调用I've find this function on http://code.google.com/p/btstack/wiki/iPhoneKeyboardHiding
现在我可以同时从软键盘和蓝牙设备获取输入。

Ok. Finally got it. Many thanks to David, Matthias and Enrico. Here are the steps:

import the private framework GraphicsServices
call GSEventSetHardwareKeyboardAttached(NO) inside the viewDidLoad

add a button that toggles the keyboard by calling

static void toggleKeyboard(UIKeyboardImpl * keyImpl){
if (UIKeyboardAutomaticIsOnScreen()) {
    UIKeyboardOrderOutAutomatic();
} else {
    UIKeyboardOrderInAutomatic();
}

I've found this function on http://code.google.com/p/btstack/wiki/iPhoneKeyboardHiding
Now I can take input from the soft keyboard and from the bluetooth device at the same time.

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