ios6 - 在 UIWebView 中保留 html5 存储写入的数据？

Question

我想让我的 UIWebView 持久化我通过 html5 存储写入它的数据。 ios 6 的发行说明通过以下方式使这听起来成为可能:

[[NSUserDefaults standardUserDefaults] 
    setBool:YES forKey:@"WebKitStoreWebDataForBackup"];

"In iOS 6 and later, web data (SQL Web Storage and LocalStorage) from a UIWebView object can be stored in a directory that will be backed up. To enable backing up this data, set the WebKitStoreWebDataForBackup key to YES in your app’s user defaults. This should be done only if your app relies on web content data that cannot be reloaded. If your UIWebView object opens links to arbitrary web content, this key should be set to NO. Toggling the value of this key will not preserve existing web view data."

http://developer.apple.com/library/ios/#releasenotes/General/RN-iOSSDK-6_0/_index.html

这就是我们所要做的——这只是一把神奇的 key ？我会在应用程序启动时调用它。

谢谢

Answer 1

这可能是在谈论将设备备份到 iTunes 或 iCloud，而不是在应用程序启动时保留数据。