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

问题描述

我想在我的应用中构建 URI(或 URL 方案)支持.

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

我在我的 + (void)initialize 中做了一个 LSSetDefaultHandlerForURLScheme() 并且我也在我的 info.plist 中设置了特定的 URL 方案.所以我有没有 Apple Script 或 Apple Events 的 URL 方案.

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.

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.

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

问题是，如何在调用时处理方案.或者更好地说:当 myScheme: 被调用时，我如何定义我的应用程序应该做什么.

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.

是否有我必须实施的特殊方法或我必须在某处注册一个方法?

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

推荐答案

当您提到 AppleScript 时，我想您正在使用 Mac OS X.

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

注册和使用自定义 URL 方案的一种简单方法是在您的 .plist 中定义方案:

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>

要注册该方案，请将其放入您的 AppDelegate 的初始化中:

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

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

每当您的应用程序通过 URL 方案被激活时，定义的选择器就会被调用.

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

事件处理方法的存根，显示如何获取 URL 字符串:

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 的文档:安装获取 URL 处理程序

更新我刚刚注意到在 applicationDidFinishLaunching: 中安装事件处理程序的沙盒应用程序存在问题.启用沙箱后，在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:

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);
}

<小时>

在 iPhone 上，处理 URL-scheme 激活的最简单方法是实现 UIApplicationDelegate 的 application:handleOpenURL: - 文档

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