merge

src/app/services/app-process-status.service.ts

@@ -0,0 +1,25 @@
+import { Injectable } from '@angular/core';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class AppProcessStatusService {
+
+  status: 'resume' | 'pause' = 'resume'
+
+  constructor() { 
+    this.events()
+  }
+
+  private events() {
+    document.addEventListener('pause', () => {
+      // console.log('App going to background');
+      this.status = 'pause'
+    });
+
+    document.addEventListener('resume', () => {
+      // console.log('App going to background');
+      this.status = 'resume'
+    });
+  }
+}