created change listener for current date on analysis page

src/app/analysis/analysis.page.ts

@@ -49,12 +49,26 @@ export class AnalysisPage {
   @ViewChild('chart') chartRef: ElementRef;
   private chart: any;
 
+  private changeListener: any;
+
   constructor(private time: TimeService) {
     addIcons({briefcase, pizza, card})
   }
 
   ionViewDidEnter() {
     this.updateCurrentData();
+
+    let lastDate: any = undefined;
+    this.changeListener = setInterval(() => {
+      if (this.currentDate != lastDate) {
+        lastDate = this.currentDate;
+        this.updateCurrentData();
+      }
+    }, 200)
+  }
+
+  ionViewDidLeave() {
+    clearInterval(this.changeListener);
   }
 
   public updateCurrentData() {