iOS How to update NSMUtableArray with NSMutablDictinoary

[pashik]

Hello.

I have plist with arrays of dictionaries.

Removing of object looks easy enough:

NSArray *filePaths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES); 	
NSMutableArray	sectionList = [NSMutableArray arrayWithContentsOfFile:[NSString stringWithFormat:@"%@/%@",[filePaths objectAtIndex: 0], @"myplist.plist"]];

NSMutableDictionary *sectionItems = [sectionList objectAtIndex:0];
NSMutableArray *items = [sectionItems objectForKey:@"items"];
[items removeObjectAtIndex:0];

But problem i met is how to update "sectionList" after object was removed from "items" or after new object was added into "items" so updated data can be saved into plist file.

Thank you for help.

Here is plist example:

<plist version="1.0">
<array>
	<dict>
		<key>items</key>
		<array>
			<dict>
				<key>id</key>
				<string>1</string>
				<key>name</key>
				<string>item title 1</string>
			</dict>
			<dict>
				<key>id</key>
				<string>13</string>
				<key>name</key>
				<string>item title 2</string>
			</dict>
		</array>
		<key>sectionName</key>
		<string>Section A</string>
	</dict>
	<dict>
		<key>items</key>
		<array>
			<dict>
				<key>id</key>
				<string>1</string>
				<key>name</key>
				<string>item title 3</string>
			</dict>
			<dict>
				<key>id</key>
				<string>13</string>
				<key>name</key>
				<string>item title 4</string>
			</dict>
			<dict>
				<key>id</key>
				<string>4</string>
				<key>name</key>
				<string>item title 5</string>
			</dict>
			<dict>
				<key>id</key>
				<string>444</string>
				<key>name</key>
				<string>item title 6</string>
			</dict>
		</array>
		<key>sectionName</key>
		<string>Section B</string>
	</dict>
	<dict>
		<key>items</key>
		<array>
			<dict>
				<key>id</key>
				<string>1</string>
				<key>name</key>
				<string>item title 7</string>
			</dict>
			<dict>
				<key>id</key>
				<string>13</string>
				<key>name</key>
				<string>item title 8</string>
			</dict>
		</array>
		<key>sectionName</key>
		<string>Section C</string>
	</dict>
</array>
</plist>

 

[kainjow]

But problem i met is how to update "sectionList" after object was removed from "items" or after new object was added into "items" so updated data can be saved into plist file.

The array doesn't need updating since you're modifying objects that are within it. If you want to save it to file when you modify the array or any object within the array, use writeToFile:atomically:

 

[pashik]

The array doesn't need updating since you're modifying objects that are within it. If you want to save it to file when you modify the array or any object within the array, use writeToFile:atomically:

Thanks for help