進度條僅在 status.percentageCompleted 等于 100 后才更新。如何與進度同時更新？謝謝這是我的 HTML 文件    <Progress [value]="percent" [maxValue]="100">    </Progress>    <Button class="uploadButton" text="Upload" (tap)="uploadFile()"></Button>這是我的 .ts 文件@零件（{selector: "progressbar-page",templateUrl: "progressbar-page.html",styleUrls : ["./progressbar-page.css"]})導出類進度條頁面{message='';path="";Completion="";percent;constructor(private zone:NgZone){}public ngOnInit() :void {    this.path= knownFolders.currentApp().path+"/images/crime.jpg"; }uploadFile() {    var metadata = {        contentType: "Image",        contentLanguage: "fr",        customMetadata: {          "foo": "bar",           "foo2": "bar2"        }      };    const appPath = knownFolders.currentApp().path;    const logoPath = appPath+"//images//test.jpg"    storage.uploadFile({        bucket:  "gs://hri7238.appspot.com",        remoteFullPath: 'uploads/images/firebase-storage.png',        localFile: File.fromPath(logoPath),        localFullPath: logoPath,        onProgress: status => {            console.log("Uploaded fraction: " + status.fractionCompleted);            if(status.percentageCompleted.valueOf()==100){               alert("Upload Completed Succesfully");            }            this.percent=status.percentageCompleted.valueOf();            console.log("Percentage complete: " + status.percentageCompleted);        },metadata    }).then(uploadedFile => {        console.log("File uploaded: " + JSON.stringify(uploadedFile));        this.message = "File uploaded: " + JSON.stringify(uploadedFile);    }).catch(err => {        alert("There was a problem uploading")        console.log(err);    })}}