ios - 用于制作示例存折应用程序，在 .pkpass 文件中获取 NSData 为 nil

Question

NSString *filePath = [[[NSBundle mainBundle] resourcePath]stringByAppendingPathComponent:@"freehugcoupon.pkpass"];
NSLog(@"Filepath = [%@]",filePath);
NSData *data = [NSData dataWithContentsOfFile:filePath];

NSError *error;
if (data != nil) {
    PKPass *pass = [[PKPass alloc] initWithData:data error:&error];
    NSLog(@"Error = [%@]",[error localizedDescription]);

    if([passLib containsPass:pass]) {

        UIAlertView* alertView = [[UIAlertView alloc] initWithTitle:@"Pass Exists" message:@"The pass you are trying to add to Passbook is already present." delegate:nil cancelButtonTitle:@"OK"otherButtonTitles:nil];
        [alertView show];
        [alertView release];

    } else {

        PKAddPassesViewController *vc = [[PKAddPassesViewController alloc] initWithPass:pass];
        vc.delegate = self;
        [self presentViewController:vc animated:YES completion:nil];
        [vc release];
        [pass release];
    }
}

---

在从本地路径的 .pkpass 文件中获取 NSData 时，我得到的 NSData 对象是 nil ...

任何人都可以帮助我提前谢谢。

Answer 1

如果您的NSData对象是nil，则意味着您的dataWithContentsOfFile:呼叫无效。检查您的filePath是否有效 - 如果不是，那是您的问题。