写入Phonegap中的Cordova.plist文件会导致错误

Question

我已将以下内容添加到Cordova.plist文件中：

Key: EnableEverything
Type: Boolean
Value: YES

然后我使用以下代码来读取和写入plist文件：

NSString *adKey = @"EnableEverything";

NSString *pathToSettingsInBundle = [[NSBundle mainBundle] pathForResource:@"Cordova" ofType:@"plist"];
NSMutableDictionary *plist = [NSDictionary dictionaryWithContentsOfFile: pathToSettingsInBundle];

NSString *enableEverything = [[plist valueForKey:adKey] stringValue];
NSLog(@"EnableEverything: %@", enableEverything); // this returns 1, which is correct.

// Disable in plist.
[plist setValue:NO forKey:adKey];
[plist writeToFile:pathToSettingsInBundle atomically:YES];

NSLog(@"EnableEverything: %@", enableEverything); // never reaches this line

我收到以下错误：

2012-09-07 14:20:12.168 slq[958:707] *** WebKit discarded an uncaught exception in the webView:decidePolicyForNavigationAction:request:frame:decisionListener: delegate: <NSInternalInconsistencyException> -[__NSCFDictionary removeObjectForKey:]: mutating method sent to immutable object

当它试图写入文件时似乎有问题。

Answer 1

您正在更改应用包中的文件。这是苹果禁止的。检查一下：writing NSDictionary to plist in my app bundle

您必须将plist复制到允许更改的文件夹，例如documents文件夹。