在swift 3.0中从我的键盘扩展中打开我的应用程序 [英] Open My application from my keyboard extension in swift 3.0

问题描述

我正在尝试从键盘扩展程序打开。我有自定义键盘，我从设置中添加了键盘。在我的自定义键盘上有一个按钮显示更多，我想在此按钮上单击打开我的应用程序。

I am trying to open from my keyboard extension. I am having custom keyboard and I have add that keyboard from setting. On my custom keyboard there is one button "Show More", and I want to open my app on this button click.

所以我尝试了以下代码：

So I have tried following code :

let context = NSExtensionContext()
 context.open(url! as URL, completionHandler: nil)

 var responder = self as UIResponder?

 while (responder != nil) {

      if responder?.responds(to: Selector("openURL:")) == true {

           responder?.perform(Selector("openURL:"), with: url)
      }
      responder = responder!.next
 }

它正在成功运行，但正如我们所知，在swift Selector（method_name：）中不推荐使用 #selector（classname.methodname（_：））而是发出警告。我想解决这个警告。所以我尝试过Xcode自动建议：

It is working successfully, but as we know in swift Selector("method_name:") is deprecated and use #selector(classname.methodname(_:)) instead so it is giving warning. And I want to solve that warning. So I have tried as Xcode automatically suggested :

 if responder?.responds(to: #selector(UIApplication.openURL(_:))) == true {

      responder?.perform(#selector(UIApplication.openURL(_:)), with: url)
 }

还试过：

 if responder?.responds(to: #selector(NSExtensionContext.open(_:))) == true {

      responder?.perform(#selector(NSExtensionContext.open(_:)), with: url)
 }

我也尝试了其他可能的方式，但没有运气。如果有人知道该怎么做，请告诉我。

I have also tried others possible ways, but no luck. If anyone know how to do, please let me know.

我推荐此链接，Julio Bailon的回答：

I referred this link, Julio Bailon’s answer :

openURL无法在行动扩展中使用

推荐答案

以下代码适用于 Xcode 8.3.3，iOS10，Swift3 ，没有任何编译器警告：

Following code works on Xcode 8.3.3, iOS10, Swift3 without any compiler warnings:

func openUrl(url: URL?) {
    let selector = sel_registerName("openURL:")
    var responder = self as UIResponder?
    while let r = responder, !r.responds(to: selector) {
        responder = r.next
    }
    _ = responder?.perform(selector, with: url)
}

这篇关于在swift 3.0中从我的键盘扩展中打开我的应用程序的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！