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StackOverflow2013
Postsdbo
POGet index of array object
 

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  1. POGet index of array object
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    <p>This is the code I'm trying to finish</p> <pre><code>-(IBAction)theButtonIsSelected:(id)sender { NSMutableDictionary *mutDict = [NSMutableDictionary dictionaryWithDictionary:[detailsDataSource objectAtIndex:detailIndex]]; [mutDict setObject:@"Yes" forKey:@"Favorite"]; NSString *nameString = [mutDict valueForKey:@"Name"]; NSArray *allObjects; allObjects = [[NSArray alloc] initWithContentsOfFile:path]; NSMutableArray *tmpMutArr = [NSMutableArray arrayWithArray:allObjects]; int index; //I think I just need a little piece right here to set the current allObjectsIndex to match nameString? [tmpMutArr replaceObjectAtIndex:index withObject:[NSDictionary dictionaryWithDictionary:mutDict]]; allObjects = nil; allObjects = [[NSArray alloc] initWithArray:tmpMutArr]; [allObjects writeToFile:path atomically:YES]; } </code></pre> <p>This is my question:</p> <pre><code>if (what I'm trying to do above can be done) { How to finish it? } else { How to make a function to change the "Favorite" key's value of plist object, when detailsDataSource not always containing the complete list of objects? That's why I'm trying to include allObjects and index in this code. } </code></pre> <p>EDIT:</p> <p>Code now look like this:</p> <pre><code> NSMutableDictionary *mutDict = [NSMutableDictionary dictionaryWithDictionary:[detailsDataSource objectAtIndex:detailIndex]]; [mutDict setObject:@"Yes" forKey:@"Favorite"]; NSString *nameString = [[detailsDataSource objectAtIndex:detailIndex] valueForKey:@"Name"]; NSArray *allObjectsArray = [[NSArray alloc] initWithContentsOfFile:path]; NSMutableArray *tmpMutArr = [NSMutableArray arrayWithArray:allObjectsArray]; if(int i=0;i&lt;[tmpMutArr count];i++) //Errors ^here and here^ { if([[tmpMutArr objectAtIndex:i] isKindOfClass:[NSDictionary class]]) { NSMutableDictionary *tempDict = [tmpMutArr objectAtIndex:i]; if([tempDict valueForKey:@"Name" == [NSString stringWithFormat:@"@%", nameString];) //Is this correct? { index = i; //index of dictionary } } } [tmpMutArr replaceObjectAtIndex:i withObject:[NSDictionary dictionaryWithDictionary:mutDict]]; allObjectsArray = nil; allObjectsArray = [[NSArray alloc] initWithArray:tmpMutArr]; [allObjectsArray writeToFile:path atomically:YES]; </code></pre> <p>Errors: 1 Expected expression 2 undeclared identifier 'i' how to declare I and fix the other error?</p>
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    1. COYou might want to look into using `NSNumber` for the favourite object, by using `[NSNumber numberWithBool:YES]` rather then the string "Yes"
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      1. USDaniel
    2. COYeah but I'll fix that later, now I'm concentrating on getting a correct plist copy.
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      1. USingenspor
 

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