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Okay, in your phonegap application in XCode, ( Without EVER having to touch the PhoneGapLib )

1) right click the plugins folder and select Add/NewFile/ObjectiveCClass
2) Call your new class : TestPlug
3) Paste the following code into the .m + .h files:

// In the .h file …..
#import
#import “PhoneGapCommand.h”
@interface TestPlug : PhoneGapCommand {
}
- (void)doit:(NSMutableArray*)arguments withDict:(NSMutableDictionary*)options;
@end

// in the .m file

#import “TestPlug.h”

@implementation TestPlug

- (void)addThemUp:(NSMutableArray*)arguments withDict:(NSMutableDictionary*)options
{
NSUInteger argc = [arguments count];
int total = 0;
for(int n = 0; n < argc; n++)
{
total += [[ arguments objectAtIndex:n] intValue];
}
NSString* retStr = [ NSString stringWithFormat:@"alert("%d");",total];
[ webView stringByEvaluatingJavaScriptFromString:retStr ];
}
@end

4) In your JS code, somewhere after deviceready, call your command like this.

PhoneGap.exec(“TestPlug.addThemUp”,1,2,3,4);

Build and run!

Note the structure of the PhoneGap.exec call
1) a command name : TestPlug
2) a method name : addThemUp
3) a variable length list of arguments

Next time, I’ll get into passing objects via the ‘options’ object.

If you have a compelling plug-in you want to share, you can fork my repo for plugins and send me a pull request :

http://github.com/purplecabbage/PhoneGap-Plugins

If your plugin makes sense on multiple devices, and it is implemented with standards in mind, it may end up in PhoneGapLib.