App.ts:
import {BackgroundMode} from 'ionic-native';
platform.ready().then(() => {
BackgroundMode.enable();
BackgroundMode.on('activated', function(){
console.log('ACTIVATED');
});
}
Error caused by calling on function:
10 301886 group EXCEPTION: Error: Uncaught (in promise): TypeError: Cannot read property 'apply' of undefined
11 301889 error EXCEPTION: Error: Uncaught (in promise): TypeError: Cannot read property 'apply' of undefined
12 301891 error STACKTRACE:
13 301892 error Error: Uncaught (in promise): TypeError: Cannot read property 'apply' of undefined
at resolvePromise (http://192.168.56.1:8100/build/js/zone.js:538:32)
at http://192.168.56.1:8100/build/js/zone.js:574:18
at ZoneDelegate.invokeTask (http://192.168.56.1:8100/build/js/zone.js:356:38)
at Object.NgZoneImpl.inner.inner.fork.onInvokeTask (http://192.168.56.1:8100/build/js/app.bundle.js:36310:41)
at ZoneDelegate.invokeTask (http://192.168.56.1:8100/build/js/zone.js:355:43)
at Zone.runTask (http://192.168.56.1:8100/build/js/zone.js:256:48)
at drainMicroTaskQueue (http://192.168.56.1:8100/build/js/zone.js:474:36)
at ZoneTask.invoke (http://192.168.56.1:8100/build/js/zone.js:426:22)
14 301896 groupEnd
15 301901 error Unhandled Promise rejection:, Cannot read property 'apply' of undefined, ; Zone:, angular, ; Task:, Promise.then, ; Value:, [object Object]
The documentation seems to be wrong because it say ‘on’ receives just one parameter called the eventName. In fact it should receive a callback too.
radoo
2
from your other post it looks like you got it fixed. if that’s correct could you post the working code, for future reference?
There’s two problems here.
First the documentation is wrong.
In my code I put an second argument, which don’t causes compiler errors but causes an execution error shown above.
@NatnaelOsorio, can you please share with us also the solution?
BackgroundMode.on('activate', function() {
});
EXCEPTION: TypeError: Cannot read property 'apply' of undefined
browser_adapter.js:84 EXCEPTION: TypeError: Cannot read property 'apply' of undefinedBrowserDomAdapter.logError @ browser_adapter.js:84BrowserDomAdapter.logGroup @ browser_adapter.js:94ExceptionHandler.call @ exception_handler.js:65(anonymous function) @ application_ref.js:337EventEmitter.subscribe.schedulerFn @ async.js:139SafeSubscriber.__tryOrUnsub @ Subscriber.js:225SafeSubscriber.next @ Subscriber.js:174Subscriber._next @ Subscriber.js:124Subscriber.next @ Subscriber.js:88Subject._finalNext @ Subject.js:128Subject._next @ Subject.js:120Subject.next @ Subject.js:77EventEmitter.emit @ async.js:127NgZone._zoneImpl.ng_zone_impl_1.NgZoneImpl.onError @ ng_zone.js:124NgZoneImpl.inner.inner.fork.onHandleError @ ng_zone_impl.js:74ZoneDelegate.handleError @ zone.js:327Zone.runTask @ zone.js:259ZoneTask.invoke @ zone.js:423
browser_adapter.js:84 STACKTRACE:BrowserDomAdapter.logError @ browser_adapter.js:84ExceptionHandler.call @ exception_handler.js:67(anonymous function) @ application_ref.js:337EventEmitter.subscribe.schedulerFn @ async.js:139SafeSubscriber.__tryOrUnsub @ Subscriber.js:225SafeSubscriber.next @ Subscriber.js:174Subscriber._next @ Subscriber.js:124Subscriber.next @ Subscriber.js:88Subject._finalNext @ Subject.js:128Subject._next @ Subject.js:120Subject.next @ Subject.js:77EventEmitter.emit @ async.js:127NgZone._zoneImpl.ng_zone_impl_1.NgZoneImpl.onError @ ng_zone.js:124NgZoneImpl.inner.inner.fork.onHandleError @ ng_zone_impl.js:74ZoneDelegate.handleError @ zone.js:327Zone.runTask @ zone.js:259ZoneTask.invoke @ zone.js:423
browser_adapter.js:84 TypeError: Cannot read property 'apply' of undefined
at callCordovaPlugin (plugin.js:81)
at Function.exports.wrap (plugin.js:221)
at Function.value [as on] (plugin.js:284)
at SafeSubscriber._next (app.ts:70)
at SafeSubscriber.__tryOrUnsub (Subscriber.js:225)
at SafeSubscriber.next (Subscriber.js:174)
at Subscriber._next (Subscriber.js:124)
at Subscriber.next (Subscriber.js:88)
at XMLHttpRequest.XHRConnection.response.Observable_1.Observable.onLoad (xhr_backend.js:68)
at ZoneDelegate.invokeTask (zone.js:356)BrowserDomAdapter.logError @ browser_adapter.js:84ExceptionHandler.call @ exception_handler.js:68(anonymous function) @ application_ref.js:337EventEmitter.subscribe.schedulerFn @ async.js:139SafeSubscriber.__tryOrUnsub @ Subscriber.js:225SafeSubscriber.next @ Subscriber.js:174Subscriber._next @ Subscriber.js:124Subscriber.next @ Subscriber.js:88Subject._finalNext @ Subject.js:128Subject._next @ Subject.js:120Subject.next @ Subject.js:77EventEmitter.emit @ async.js:127NgZone._zoneImpl.ng_zone_impl_1.NgZoneImpl.onError @ ng_zone.js:124NgZoneImpl.inner.inner.fork.onHandleError @ ng_zone_impl.js:74ZoneDelegate.handleError @ zone.js:327Zone.runTask @ zone.js:259ZoneTask.invoke @ zone.js:423
plugin.js:81 Uncaught TypeError: Cannot read property 'apply' of undefined
Not good, I opened a issue on github