Keep callback context in PhoneGap plugin?

Question

I need to implement some functionality that triggers an action on an interval and emits the results back to javascript.

To simplify things I will use the echo examp

Answer 1

You'll want to have something like:

NSString *myCallbackId;

as an instance-level variable (outside of any method, so it retains its value). Set it when you first come in to the plugin code:

myCallbackId = command.callbackId;

Then, right after you instantiate a PluginResult, but before using it, do something like:

[pluginResult setKeepCallback:[NSNumber numberWithBool:YES]];

That will tell it to keep the callback valid for future use.

Then do something like:

[self.commandDelegate sendPluginResult:pluginResult callbackId:myCallbackId];