SAPUI5中的自定义Gif加载程序

如何在自定义UI5应用程序中使用自定义.gif文件预加载程序。当点击弹出或导航延迟按钮时

下面是我的代码

<content>
        <Button
            text="Dialog"
            width="230px"
            press="onDialogPress"
            class="sapUiSmallMarginBottom" />
    </content>

onDialogPress: function(oEvent) {

    var that = this;
    if (!that.pressDialog) {
        that.pressDialog = new sap.m.BusyDialog({
            text: 'Loading...',
        });

        //to get access to the global model
        this.getView().addDependent(that.pressDialog);
    }

    that.pressDialog.open();
},

onDialogPress：功能（oEvent）{
var=这个；
如果（！that.pressDialog）{
that.pressDialog=new sap.m.BusyDialog({
文本：“正在加载…”，
});
//以访问全局模型
this.getView（）.addDependent（that.pressDialog）；
}
按dialog.open（）；
},

具有添加自定义图像的选项：

onDialogPress: function(oEvent) {
    if (!this.pressDialog) {
        this.pressDialog = new sap.m.BusyDialog({
            text: 'Loading...',
            customIcon: './stackoverflow/loading.gif',
            customIconRotationSpeed: 0,
            customIconWidth: '48px',
            customIconHeight: '48px'
        });
        this.getView().addDependent(that.pressDialog);
    }
    this.pressDialog.open();
}

结果：