Acquire returned value from PhoneGap Plugin

Question

I built a very simple `PhoneGap` Plugin to start testing the way I'm going to build some native actions on Android. JavaScript: ``` function callNativePlugin() { cordova.exec(nativePluginResultHandler, nativePluginErrorHandler, "Database", "saveAdvertencia", [ 1, "TesteAdv" ]); } function nativePluginResultHandler(result) { alert("SUCCESS: 
" + result); } function nativePluginErrorHandler(error) { alert("ERROR: 
" + error); } ``` Java: ``` @Override public boolean execute(String action, JSONArray args, CallbackContext callbackContext) throws JSONException { if (action.equals("saveAdvertencia")) { advertenciaDS = new AdvertenciaDS(cordova.getActivity()); callbackContext.sendPluginResult(new PluginResult(Status.OK, new JSONArray("test"))); return true; } return false; } ``` What I need is a way to retrieve the result from the action in the same method. It's very complicated to always deal with 3 methods(1 to execute the action. 1 to define what will be the success action. 1 to def…

Accepted Answer

I use this pattern to have only one callback for the functions provided by the plugin:

```
function callNativePlugin(callback) {
   cordova.exec(function(result) {
       callback(null, result);
   }, function(result) {
       callback("myerror");
   }, "Database", "saveAdvertencia", [ 1, "TesteAdv" ])
};
```

This way you get node.js style callbacks in which the first argument is the error and second is the result:

```
//define the callback function
var callbackFunction = function(err, result) {
    if (err) {
        console.log("there was an error");
    } else {
        console.log("success", result);
    }
};

//call the plugin
callNativePlugin(callbackFunction);
```

You cannot avoid having two callbacks in your plugin, as this is mandated by the cordova API, but you don't have to expose that to your plugin users.

Acquire returned value from PhoneGap Plugin

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