Android push notifications with EddyVerbruggen/nativescript-plugin-firebase

android.activity.ts

import { ReplaySubject } from "rxjs/ReplaySubject";
import { Observable } from "rxjs/Observable";

const _intentSubject = new ReplaySubject<android.content.Intent>();

export const OnIntent: Observable<any> = _intentSubject.asObservable(); // apply transformation as needed to abstract from platform

@JavaProxy("org.example.App.MainActivity")
export class Activity extends android.app.Activity {
  
  private _callbacks: AndroidActivityCallbacks;

  protected onCreate(savedInstanceState: android.os.Bundle): void {
    if (!this._callbacks) {
      setActivityCallbacks(this);
    }
    this._callbacks.onCreate(this, savedInstanceState, super.onCreate);

    const creationIntent = this.getIntent();
    _intentSubject.next(creationIntent);
  }
  
  protected onNewIntent(intent: android.content.Intent): void {
    super.onNewIntent(intent);
    _intentSubject.next(intent);
  }

  protected onSaveInstanceState(outState: android.os.Bundle): void {
    this._callbacks.onSaveInstanceState(this, outState, super.onSaveInstanceState);
  }

  protected onStart(): void {
    this._callbacks.onStart(this, super.onStart);
  }

  protected onStop(): void {
    this._callbacks.onStop(this, super.onStop);
  }

  protected onDestroy(): void {
    this._callbacks.onDestroy(this, super.onDestroy);
  }

  public onBackPressed(): void {
    this._callbacks.onBackPressed(this, super.onBackPressed);
  }

  public onRequestPermissionsResult(requestCode: number, permissions: Array<String>, grantResults: Array<number>): void {
    this._callbacks.onRequestPermissionsResult(this, requestCode, permissions, grantResults, undefined /*TODO: Enable if needed*/);
  }

  protected onActivityResult(requestCode: number, resultCode: number, data: android.content.Intent): void {
    this._callbacks.onActivityResult(this, requestCode, resultCode, data, super.onActivityResult);
  }

}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
	package="__PACKAGE__"
	android:versionCode="1"
	android:versionName="1.0">

	<supports-screens
		android:smallScreens="true"
		android:normalScreens="true"
		android:largeScreens="true"
		android:xlargeScreens="true"/>

	<uses-sdk
		android:minSdkVersion="17"
		android:targetSdkVersion="__APILEVEL__"/>

	<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
	<uses-permission android:name="android.permission.INTERNET"/>

	<application
		android:name="com.tns.NativeScriptApplication"
		android:allowBackup="true"
		android:icon="@drawable/ic_launcher"
		android:label="@string/app_name"
		android:theme="@style/AppTheme">

		<meta-data android:name="com.google.firebase.messaging.default_notification_icon"
			android:resource="@drawable/ic_stat_content_notification" />

		<activity
			android:name="org.example.App.MainActivity"
			android:launchMode="singleTask"
			android:label="@string/title_activity_kimera"
			android:configChanges="keyboardHidden|orientation|screenSize"
			android:theme="@style/LaunchScreenTheme">

			<meta-data android:name="SET_THEME_ON_LAUNCH" android:resource="@style/AppTheme" />	

			<intent-filter>
				<action android:name="android.intent.action.MAIN" />
				<category android:name="android.intent.category.LAUNCHER" />
			</intent-filter>
			<intent-filter>
				<action android:name="android.intent.action.VIEW" />
				<category android:name="android.intent.category.DEFAULT" />
				<category android:name="android.intent.category.BROWSABLE" />
				<data android:scheme="https" />
				<data android:host="app.org" />
			</intent-filter>
		</activity>
		<activity android:name="com.tns.ErrorReportActivity"/>
		<service android:name="org.nativescript.plugins.firebase.MyFirebaseInstanceIDService">
            <intent-filter>
                <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
            </intent-filter>
        </service>
        <service android:name="org.nativescript.plugins.firebase.MyFirebaseMessagingService">
            <intent-filter>
                <action android:name="com.google.firebase.MESSAGING_EVENT"/>
            </intent-filter>
        </service>
	</application>
</manifest>

app.component.ts

import { Component, OnInit, NgZone } from "@angular/core";
import { Observable } from "rxjs/Observable";
import { RouterExtensions } from "nativescript-angular";
import { isAndroid, isIOS } from "platform";

// setup notifcation source for both platforms
let OnNotification: Observable<string>;
if (isAndroid) {
OnNotification = require("./activity").OnIntent;
} else if (isIOS) {...}
  
@Component({selector: "app", templateUrl: "app.component.html"})
export class AppComponent implements OnInit {
  
  constructor(private _zone: NgZone) {...}
  
  ngOnInit() {
    // subscribe to notification events from both platforms
    OnNotification.subscribe((notification) => this._doSomething());
    // if you are doing something with Angular based on the notifications, you should probably run it in NgZone
  }
  
}