从我的服务器下载iOS自定义应用程序中的PKPass

Question

我设置了一个返回PKPass的服务器。如果我将URL复制到浏览器，就会显示通行证（在我的Mac和iPhone中）。我用来下载通行证的代码如下：

NSData *data = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:kAPIPass]];
if (nil != data) {
    PKPass *pass = [[PKPass alloc] initWithData:data error:nil];
    PKAddPassesViewController *pkvc = [[PKAddPassesViewController alloc] initWithPass:pass];
    pkvc.delegate = self;
    [self presentViewController:pkvc
                       animated:YES
                     completion:^{
                         // Do any cleanup here
                     }
     ];
}

无论如何，当我运行此代码时，我会出现以下错误：

*由于未捕获的异常"NSInternalConferenceException"而终止应用程序，原因："仅支持RGBA或白色空间，这种方法是一种破解

我不知道虫子是什么。。。当我用Safari下载通行证时，它似乎还可以，甚至代码也可以（只有3行…）有Passkit经验的人可以帮助我吗？

编辑：奇怪的是，完全相同的代码在一个新的项目中工作

编辑2:从AppDelegate中删除以下行，删除崩溃，这很奇怪！

[[UINavigationBar appearance] setTintColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"navbar_bg_gen.png"]]];

Answer 1

Swift 3

以下是从带有完成处理程序的服务器下载.pkpass（存折文件）的代码，并显示pkpassviewcontroller以进一步添加到苹果钱包中。

import PassKit

let url : NSURL! = NSURL(string: "YOUR .pkpass URL GOES HERE")
        let request: NSURLRequest = NSURLRequest(url:
            url as URL)
        let config = URLSessionConfiguration.default
        let session = URLSession(configuration: config)
    let task : URLSessionDataTask = session.dataTask(with: request as URLRequest, completionHandler: {(data, response, error) in
        var error: NSError?
        let pass = try? PKPass(data: data!, error: &error)
        if error != nil {
            DispatchQueue.main.async {
                let alertView = UIAlertView(title: "Error", message: (error?.localizedDescription)!, delegate: nil, cancelButtonTitle: "OK", otherButtonTitles: "Cancel")
                alertView.show()
            }
        }
        else {
            let passLibrary = PKPassLibrary()
            if passLibrary.containsPass(pass!) {
                DispatchQueue.main.async {
                    let alertView = UIAlertView(title: "Already Exist", message: "This pass already added in wallet. Thanks!", delegate: nil, cancelButtonTitle: "OK", otherButtonTitles: "Cancel")
                    alertView.show()
                    self.hideLoading()
                }
            } else {
                let pkvc = PKAddPassesViewController(pass: pass!)
                pkvc.delegate = self
                self.present(pkvc, animated: true, completion: {() -> Void in
                    // Do any cleanup here
                    self.hideLoading()
                })
            }
        }
    })
    task.resume()

Answer 2

处于当前状态的代码不会调用PKAddPassesViewController来向用户呈现通行证。

假设通行证库可用，以下内容将与您在iOS6&iOS7：

NSData *data = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:kAPIPass]];
if (nil != data) {
    PKPass *pass = [[PKPass alloc] initWithData:passData error:&error];
    if(error) {
        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Error" message:[error localizedDescription] delegate:nil cancelButtonTitle:@"OK"otherButtonTitles:nil];
        [alertView show];
    } else {
        PKAddPassesViewController *pkvc = [[PKAddPassesViewController alloc] initWithPass:pass];
        pkvc.delegate = self;
        [self presentViewController:pkvc
                           animated:YES
                         completion:^{
                                      // Do any cleanup here                     
                                     }
        ]; 
    }                       
}

或者，您可以异步加载它，以免阻塞主线程。

[NSURLConnection sendAsynchronousRequest:_request 
                                   queue:_browser 
                       completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
    if (nil != error) {
        // handle error
    } else if (nil != data) {
        PKPass *pass = [[PKPass alloc] initWithData:passData error:&error];
        if(error) {
            UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Error" message:[error localizedDescription] delegate:nil cancelButtonTitle:@"OK"otherButtonTitles:nil];
            [alertView show];
        } else {
            vc = [[PKAddPassesViewController alloc] initWithPass:pass];
            pkvc.delegate = self;
            [self presentViewController:pkvc
                               animated:YES
                             completion:^{
                                          // Do any cleanup here                     
                                         }
            ]; 
        }
    }
}];    

Answer 3

所以问题出在AppDelegate中的这一行：

[[UINavigationBar appearance] setTintColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"navbar_bg_gen.png"]]];

在我添加存折之前，这个图像似乎一直运行良好，但显示通行证的控制器不喜欢它。