使用 NSMutableDictionary 生成 plist

Question

我在从 NSMutableDictionnary 生成 plist 文件时遇到问题。它似乎不起作用。我在 Stackoverflow 上看过很多例子。我从 plist 生成 Dictionary 但不是从 Dictionary 生成 plist。

这是我的代码：

NSArray *keys = [NSArray arrayWithObjects:@"id", @"name", nil];
NSArray *object = [NSArray arrayWithObjects:@"Value id", @"Value name", nil];
NSMutableDictionary *projectData = [NSDictionary dictionaryWithObject:object forKey:keys];

NSFileManager* fileManager = [NSFileManager defaultManager];


for (id key in projectData)
{
    NSLog(@"projectData = key : %@, value : %@", key, [projectData objectForKey:key]);
}


NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *plistPath = [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent:@"data.plist"];
NSLog(@"%@", plistPath);
//write
[projectData writeToFile:plistPath atomically:YES];
NSMutableDictionary *newDictionnary;

//read
if ((plistPath = [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent:@"data.plist"])) {

    if ([fileManager isWritableFileAtPath:plistPath]) {
        [projectData writeToFile:plistPath atomically:YES];
        newDictionnary = [NSMutableDictionary dictionaryWithContentsOfFile:plistPath];
        //NSLog(@"%@", plistPath);
    }
}

else {
    NSLog(@"File not found");
}
  for (id key in newDictionnary)
{
    NSLog(@"New dictionnary = key : %@, value : %@", key, [newDictionnary objectForKey:key]);
}

感谢您的帮助:)

Answer 1

请注意：您的 paths 变量从未使用过。

您不能直接写入您的捆绑目录。您必须写入文档文件夹、缓存文件夹或临时文件夹。

将[[NSBundle mainBundle] bundlePath] 替换为paths[0]。