Call Javascript from Phonegap outside of Plugin?

Question

I'm new to PhoneGap/Cordova, and would like to call some javascript outside of the CDVPlugin interface.... In code that isn't part of a plugin.

Is this possible? If I could get a reference to the webview that PhoneGap uses, I should be able to call something like:

[webView stringByEvaluatingJavaScriptFromString:@"myJSFunction()"];

or

[super writeJavascript::@"myJSFunction()"];

score 0 · Accepted Answer · edited May 23 '17 at 12:03

You can do this for ios by getting a reference to the WebView from the AppDelegate:

+(void) fireJavascript:(NSString*) javascript
{
    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];

    [appDelegate fireJavascript:javascript];
}

and in your AppDelegate, define a method like so:

- (void) fireJavascript:(NSString *)javascript
{
    NSLog(@"About to fire js:%@", javascript);
    [self.viewController.webView stringByEvaluatingJavaScriptFromString:javascript];
}

Note that you can get a reference for the app delegate in your app using info from this question on StackOverflow.

Call Javascript from Phonegap outside of Plugin?

1 Answers1