Use a Plist dictionary for App settings

问题

I want to be able to use a plist for settings Im implementing in my app. I want a dictionary "Settings" to hold my arrays, such as "Debug", "Option 1", Option 2", etc. How would I access "Debug"array under the "Settings" dictionary?

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
NSString *documentsDirectory = [paths objectAtIndex:0]; 
NSString *myPlistPath = [documentsDirectory stringByAppendingPathComponent:@"ProfileManager.plist"]; 
NSDictionary *plistDict = [[NSDictionary alloc] initWithContentsOfFile:myPlistPath]; 

swDebug.on = [plistDict objectForKey:@"Debug"];

.plist

<?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>Current Profile</key>
<string>Sample Profile</string>
<key>Custom Profiles</key>
<array>
    <dict>
        <key>autolock</key>
        <false/>
        <key>bluetooth</key>
        <false/>
        <key>desc</key>
        <string>Example profile provided by the application</string>
        <key>edge</key>
        <false/>
        <key>phone</key>
        <false/>
        <key>push</key>
        <false/>
        <key>ringtone</key>
        <string>Example.m4r</string>
        <key>threeg</key>
        <false/>
        <key>title</key>
        <string>Example Profile</string>
        <key>vibrate</key>
        <false/>
        <key>wifi</key>
        <false/>
    </dict>
    <dict>
        <key>autolock</key>
        <false/>
        <key>bluetooth</key>
        <false/>
        <key>desc</key>
        <string>Sample profile provided by the application</string>
        <key>edge</key>
        <false/>
        <key>phone</key>
        <false/>
        <key>push</key>
        <false/>
        <key>ringtone</key>
        <string>Sample.m4r</string>
        <key>threeg</key>
        <false/>
        <key>title</key>
        <string>Sample Profile</string>
        <key>vibrate</key>
        <false/>
        <key>wifi</key>
        <false/>
    </dict>
</array>
<key>Settings</key>
<dict>
    <key>Debug</key>
    <string>ON</string>
</dict>
</dict>
</plist>

回答1:

In your example Debug is a string, not an array (which is what you seem to say it is in the question). In either event, the issue is that you are accessing the key in the wrong dict. You have:

swDebug.on = [plistDict objectForKey:@"Debug"];

You would need:

swDebug.on = [[plistDict objectForKey:@"Settings"] objectForKey:@"Debug"];

Since settings is a dictionary within the dictionary plist.

来源：https://stackoverflow.com/questions/1801070/use-a-plist-dictionary-for-app-settings

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iphone

arrays

xcode

dictionary

plist