如何处理默认的URL方案 [英] How to handle with a default URL scheme

问题描述

我想在我的应用程序中创建URI（或URL方案）支持。

我做一个 LSSetDefaultHandlerForURLScheme（）在我的 +（void）initialize 和我设置了特定的URL方案也在我的 info.plist 。所以我有没有 Apple Script 或 Apple Events 的网址方案。

当我在我最喜欢的浏览器中调用 myScheme：时，系统会激活我的应用程序。

问题是，当它们被调用时如何处理这些方案。或者更好地说：当 myScheme：被调用时，如何定义我的应用应该做什么。

一个特殊的方法，我必须实现或者我必须注册一个地方。

解决方案

正如你提到的AppleScript，您正在使用Mac OS X。

注册和使用自定义URL方案的一种简单方法是在.plist中定义方案：

 < key> CFBundleURLTypes< / key> 
< array> 
< dict> 
< key> CFBundleURLName< / key> 
< string> URLHandlerTestApp< / string> 
< key> CFBundleURLSchemes< / key> 
< array> 
< string> urlHandlerTestApp< / string> 
< / array> 
< / dict> 
< / array> 
  

要注册该方案，请将其放在AppDelegate的初始化中：

  [[NSAppleEventManager sharedAppleEventManager] 
 setEventHandler：self 
 andSelector：@selector（handleURLEvent：withReplyEvent :) 
 forEventClass：kInternetEventClass 
 andEventID：kAEGetURL]; 
 

每当通过URL方案激活您的应用程序时，将调用定义的选择器。

事件处理方法的存根，显示如何获取URL字符串：

   - （void）handleURLEvent：（NSAppleEventDescriptor *）event 
 withReplyEvent：（NSAppleEventDescriptor *）replyEvent 
 {
 NSString * url = [[event paramDescriptorForKeyword：keyDirectObject] 
 stringValue]; 
 NSLog（@％@，url）; 
} 
  

Apple的文档：安装Get URL处理程序

更新
我只注意到在 applicationDidFinishLaunching中安装事件处理程序的沙盒应用程序的问题：。启用沙箱功能后，通过单击使用自定义方案的URL启动应用程序时，不会调用处理程序方法。
通过稍早安装处理程序，在 applicationWillFinishLaunching：中，该方法将按预期调用：

   - （void）applicationWillFinishLaunching：（NSNotification *）aNotification 
 {
 [[NSAppleEventManager sharedAppleEventManager] 
 setEventHandler：self 
 andSelector：@selector （handleURLEvent：withReplyEvent :) 
 forEventClass：kInternetEventClass 
 andEventID：kAEGetURL]; 
} 
 
  - （void）handleURLEvent：（NSAppleEventDescriptor *）event 
 withReplyEvent：（NSAppleEventDescriptor *）replyEvent 
 {
 NSString * url = [[ event paramDescriptorForKeyword：keyDirectObject] 
 stringValue]; 
 NSLog（@％@，url）; 
} 
  

---

处理URL方案激活的最简单的方法是实现UIApplicationDelegate的 application：handleOpenURL： - 文档

I want to build URI (or URL scheme) support in my app.

I do a LSSetDefaultHandlerForURLScheme() in my + (void)initialize and I setted the specific URL schemes also in my info.plist. So I have URL schemes without Apple Script or Apple Events.

When I call myScheme: in my favorite browser the system activates my app.

The problem is, how to handle the schemes when they are called. Or better said: How can I define what my app should do, when myScheme: is called.

Is there a special method that I have to implement or do I have to register one somewhere?

解决方案

As you are mentioning AppleScript, I suppose you are working on Mac OS X.

A simple way to register and use a custom URL scheme is to define the scheme in your .plist:

<key>CFBundleURLTypes</key>
<array>
    <dict>
        <key>CFBundleURLName</key>
        <string>URLHandlerTestApp</string>
        <key>CFBundleURLSchemes</key>
        <array>
            <string>urlHandlerTestApp</string>
        </array>
    </dict>
</array>

To register the scheme, put this in your AppDelegate's initialization:

[[NSAppleEventManager sharedAppleEventManager]
    setEventHandler:self
        andSelector:@selector(handleURLEvent:withReplyEvent:)
      forEventClass:kInternetEventClass
         andEventID:kAEGetURL];

Whenever your application gets activated via URL scheme, the defined selector gets called.

A stub for the event-handling method, that shows how to get the URL string:

- (void)handleURLEvent:(NSAppleEventDescriptor*)event
        withReplyEvent:(NSAppleEventDescriptor*)replyEvent
{
    NSString* url = [[event paramDescriptorForKeyword:keyDirectObject]
                        stringValue];
    NSLog(@"%@", url);
}

Apple's documentation: Installing a Get URL Handler

Update I just noticed a problem for sandboxed apps that install the event handler in applicationDidFinishLaunching:. With enabled sandboxing, the handler method doesn't get called when the app is launched by clicking a URL that uses the custom scheme. By installing the handler a bit earlier, in applicationWillFinishLaunching:, the method gets called as expected:

- (void)applicationWillFinishLaunching:(NSNotification *)aNotification
{
    [[NSAppleEventManager sharedAppleEventManager]
        setEventHandler:self
            andSelector:@selector(handleURLEvent:withReplyEvent:)
          forEventClass:kInternetEventClass
             andEventID:kAEGetURL];
}

- (void)handleURLEvent:(NSAppleEventDescriptor*)event
        withReplyEvent:(NSAppleEventDescriptor*)replyEvent
{
    NSString* url = [[event paramDescriptorForKeyword:keyDirectObject]
                        stringValue];
    NSLog(@"%@", url);
}

---

On the iPhone, the easiest way to handle URL-scheme activation is, to implement UIApplicationDelegate's application:handleOpenURL: - Documentation

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