Affichage du titre des pages dans la navigation

Front/skydivelogs-app/src/services/serviceComm.ts

@@ -1,6 +1,14 @@
 import { Injectable } from '@angular/core';
+import { BehaviorSubject } from 'rxjs/BehaviorSubject';
 
 @Injectable()
 export class ServiceComm {
+  private componentTitleSource = new BehaviorSubject<string>("");
+  componentTitle = this.componentTitleSource.asObservable();
+
   constructor() { }
+
+  updatedComponentTitle(title: string) {
+    this.componentTitleSource.next(title);
+  }
 }