xcode 在 plist 中添加和删除数组项
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Add & Remove Array Items inside a plist
提问by danialmoghaddam
I have problem with adding and removing items in an array inside a plist file in XCODE.
我在 XCODE 的 plist 文件中添加和删除数组中的项目时遇到问题。
I'm able to read the array by following code:
我可以通过以下代码读取数组：
// Path to the plist (in the application bundle) ------>>>>>
NSString *path = [[NSBundle mainBundle] pathForResource:
@"Fav" ofType:@"plist"];
// Build the array from the plist ------>>>
NSDictionary *favs = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
Resepies = [favs objectForKey:@"Root"];
And this my plist structure
这是我的 plist 结构
The senario is to let the user add and remove specific item from the array at a time.
方案是让用户一次从数组中添加和删除特定项目。
回答by Abhishek
try this code -
试试这个代码 -
NSString *path = [[NSBundle mainBundle] pathForResource: @"Fav" ofType:@"plist"];
// Build the array from the plist ------>>>
NSDictionary *favs = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
Resepies = [favs objectForKey:@"Root"];
[Resepies addObject:addYourObjectHere];
//then add this array into dictonary ;
[favs setObject:Resepies forKey:@"Root"];
// now write dictionary to plist
[favs writeToFile:yourPlistName atomically:YES];
回答by Paresh Navadiya
You can't modify files in the application bundle, which is what your code above is attempting to do.
您无法修改应用程序包中的文件，这正是您上面的代码试图执行的操作。
If the file is supposed to be modifiable, you need to move it into the documents folder first (say, on first run) and then read / write to that one subsequently. There are plenty of questions dealing with how to do this, for example : createplist and copying plist to document directory
如果该文件应该是可修改的，则需要先将其移动到文档文件夹中（例如，在第一次运行时），然后随后读取/写入该文件夹。有很多问题涉及如何执行此操作，例如：创建plist 并将 plist 复制到文档目录
