在 Xcode 中调试选择器

发布于 2024-10-05 11:20:17 字数 211 浏览 0 评论 0原文

我正在尝试调试我的 iPhone 应用程序，它使用选择器作为方法参数“didFinishSelector:” 当我在 xcode 中单步执行我的方法或单步执行时，它会向前执行我的方法。一段时间后，我的方法完成了它的工作，并且..它必须进入我的选择器函数，我想在 Xcode 中看到它。

这个信号机制是如何设计的？像经典的 C 分叉或多线程之类的东西？可视化调试时可以查看吗？如果是，那么如何？

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╰ゝ天使的微笑 2024-10-12 11:20:17

    //create and authenticate to a google spreadsheet service 
    GDataServiceGoogleSpreadsheet *service = [ self spreadsheetService ];
    NSURL *feedURL = [ NSURL URLWithString: kGDataGoogleSpreadsheetsPrivateFullFeed ];

    //check autentication success ( invoke "googleTicket" method for debug success & error )
    [ service authenticateWithDelegate: self
               didAuthenticateSelector: @selector( googleTicket: authenticatedWithError: ) ];

    //fetch retrieves the feed of spreadsheets entries 
    GDataServiceTicket *ticket;
    ticket = [ service fetchFeedWithURL: feedURL
                               delegate: self
                     didFinishSelector: @selector( spreadsheetsTicket: finishedWithFeed: error: ) ];

这是一个例子。当我调试时，我调用step-over，step-over，调试器通过方法[serviceauthenticateWithDelage：didAuthenticateSelector：]，它直接进入[servicefetchFeedWithURL：delegate：didFinishSelector：]，然后继续。但我想看看，当这两个方法完成时，我想看看它如何进入我的选择器“googleTicket：authenticateWithError”和“spreadsheetsTicket：finishedWithFeed：error：”

    //create and authenticate to a google spreadsheet service 
    GDataServiceGoogleSpreadsheet *service = [ self spreadsheetService ];
    NSURL *feedURL = [ NSURL URLWithString: kGDataGoogleSpreadsheetsPrivateFullFeed ];

    //check autentication success ( invoke "googleTicket" method for debug success & error )
    [ service authenticateWithDelegate: self
               didAuthenticateSelector: @selector( googleTicket: authenticatedWithError: ) ];

    //fetch retrieves the feed of spreadsheets entries 
    GDataServiceTicket *ticket;
    ticket = [ service fetchFeedWithURL: feedURL
                               delegate: self
                     didFinishSelector: @selector( spreadsheetsTicket: finishedWithFeed: error: ) ];

Here's an example. When i'm debugging, i call step-over, step-over, debugger goes through method [service authenticateWithDelage: didAuthenticateSelector:], it goes directly to [service fetchFeedWithURL: delegate: didFinishSelector:] and after that it goes forward. But i want to see, when this two methods do finish, and i want to see how it goes into my selectors "googleTicket: authenticateWithError" and "spreadsheetsTicket: finishedWithFeed: error:"

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