plist won't load into array

Question

I'm new to Objective-C, so there probably is a pretty easy solution for what I'm doing. The problem that I'm having is that for some reason, the following code doesn't add the contents from my plist file into my array:

In my viewDidLoad function:

// Grab information from the plist
NSBundle *bundle = [NSBundle mainBundle];
NSString *plistPath = [bundle 
    pathForResource:@"conversions" 
    ofType:@"plist"
];
NSArray *array = [[NSArray alloc]
    initWithContentsOfFile:plistPath
];

File "conversions.plist", in the same folder as the above code:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Categories</key>
    <array>
        <dict>
            <key>name</key>
            <string>Speed</string>
            <key>conversions</key>
            <array>
                <dict>
                    <key>type</key>
                    <string>mph</string>
                    <key>description</key>
                    <string>mile/hour</string>
                    <key>multiplier</key>
                    <integer>1</integer>
                </dict>
                <dict>
                    <key>type</key>
                    <string>ft/s</string>
                    <key>description</key>
                    <string>foot/second</string>
                    <key>multiplier</key>
                    <real>1.466667</real>
                </dict>
                <dict>
                    <key>type</key>
                    <string>km/h</string>
                    <key>description</key>
                    <string>kilometer/hour</string>
                    <key>multiplier</key>
                    <real>1.609344</real>
                </dict>
                <dict>
                    <key>type</key>
                    <string>m/s</string>
                    <key>description</key>
                    <string>meter/second</string>
                    <key>multiplier</key>
                    <real>0.44704</real>
                </dict>
            </array>
        </dict>
        <dict>
            <key>name</key>
            <string>Distance</string>
            <key>conversions</key>
            <array>
                <dict>
                    <key>type</key>
                    <string>ft</string>
                    <key>description</key>
                    <string>feet</string>
                    <key>multiplier</key>
                    <integer>1</integer>
                </dict>
                <dict>
                    <key>type</key>
                    <string>yd</string>
                    <key>description</key>
                    <string>yard</string>
                    <key>multiplier</key>
                    <real>0.3333333</real>
                </dict>
                <dict>
                    <key>type</key>
                    <string>mi</string>
                    <key>description</key>
                    <string>mile</string>
                    <key>multiplier</key>
                    <real>0.0001894</real>
                </dict>
                <dict>
                    <key>type</key>
                    <string>in</string>
                    <key>description</key>
                    <string>inch</string>
                    <key>multiplier</key>
                    <integer>12</integer>
                </dict>
                <dict>
                    <key>type</key>
                    <string>m</string>
                    <key>description</key>
                    <string>meter</string>
                    <key>multiplier</key>
                    <real>0.3048</real>
                </dict>
                <dict>
                    <key>type</key>
                    <string>km</string>
                    <key>description</key>
                    <string>kilometer</string>
                    <key>multiplier</key>
                    <real>0.0003048</real>
                </dict>
                <dict>
                    <key>type</key>
                    <string>cm</string>
                    <key>description</key>
                    <string>centimeter</string>
                    <key>multiplier</key>
                    <real>30.48</real>
                </dict>
            </array>
        </dict>
        <dict>
            <key>name</key>
            <string>Volume</string>
            <key>conversions</key>
            <array>
                <dict>
                    <key>type</key>
                    <string>ft^3</string>
                    <key>description</key>
                    <string>cubic feet</string>
                    <key>multiplier</key>
                    <integer>1</integer>
                </dict>
                <dict>
                    <key>type</key>
                    <string>liter</string>
                    <key>description</key>
                    <string>liter</string>
                    <key>multiplier</key>
                    <real>28.31685</real>
                </dict>
                <dict>
                    <key>type</key>
                    <string>acre ft</string>
                    <key>description</key>
                    <string>acre foot</string>
                    <key>multiplier</key>
                    <real>2.3e-05</real>
                </dict>
                <dict>
                    <key>type</key>
                    <string>barrel</string>
                    <key>description</key>
                    <string>barrel [US, liquid]</string>
                    <key>multiplier</key>
                    <real>0.2374768</real>
                </dict>
                <dict>
                    <key>type</key>
                    <string>gallon</string>
                    <key>description</key>
                    <string>gallon [US, liquid]</string>
                    <key>multiplier</key>
                    <real>29.92208</real>
                </dict>
                <dict>
                    <key>type</key>
                    <string>quart</string>
                    <key>description</key>
                    <string>quart [US, liquid]</string>
                    <key>multiplier</key>
                    <real>29.92208</real>
                </dict>
            </array>
        </dict>
    </array>
</dict>
</plist>

Answer 1

It seems to me that the root object in your plist is a dict and not an array, aren't you supposed to load it into NSDictionary?

NSDictionary *dictionary = [[NSDictionary alloc] initWithContentsOfFile:plistPath];