从 Web 服务器加载 PLIST
尝试能够从 URL 加载 plist 并使其覆盖当前的 plist。下面的代码可以在模拟器上运行，但是在 iPhone 4 设备上检查时它不会拉取更新的内容？对于 Xcode 新手，您有什么宝贵的建议吗？
Reachability *r = [Reachability reachabilityWithHostName:@"www.google.com"];
NetworkStatus internetStatus = [r currentReachabilityStatus];
if ((internetStatus == ReachableViaWiFi) || (internetStatus == ReachableViaWWAN)){
NSString *path = [[NSBundle mainBundle] bundlePath];
NSString *finalPath = [path stringByAppendingPathComponent:@"SpecialCases.plist"];
NSURL *theFileURL = [NSURL URLWithString:@"http://www.awebsite.com"];
NSDictionary *replace = [[NSDictionary alloc] initWithContentsOfURL:theFileURL];
if (replace != nil){
[replace writeToFile:finalPath
atomically:YES];
}
}
Trying to have the ability to load a plist from a URL and have it overwrite the current plist that is there. The code below works on the simulator but when checking on an iPhone 4 device it doesn't pull down the updated content? Any words of wisdom for an new guy to Xcode?
Reachability *r = [Reachability reachabilityWithHostName:@"www.google.com"];
NetworkStatus internetStatus = [r currentReachabilityStatus];
if ((internetStatus == ReachableViaWiFi) || (internetStatus == ReachableViaWWAN)){
NSString *path = [[NSBundle mainBundle] bundlePath];
NSString *finalPath = [path stringByAppendingPathComponent:@"SpecialCases.plist"];
NSURL *theFileURL = [NSURL URLWithString:@"http://www.awebsite.com"];
NSDictionary *replace = [[NSDictionary alloc] initWithContentsOfURL:theFileURL];
if (replace != nil){
[replace writeToFile:finalPath
atomically:YES];
}
}
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您无法在 iOS 设备上写入应用程序包，因为它不属于您可以编辑的沙箱的一部分。您必须将文件保存到文档目录，如下所示：
然后从那里加载 plist，而不是您的应用程序包。
You cannot write to your application's bundle on an iOS device, as that isn't part of the sandbox you are allowed to edit. You must save your file to the documents directory, like this:
And then later load the plist from there, not your app bundle.