onCloseDialog 不会关闭对话框



我有片段中的对话框。我有:

<Button text="{i18n>buttonClose}" press="onCloseDialog"/>

在控制器中有:

openDialog: function () {
      if (!this.pressDialog1) {
        this.pressDialog1 = sap.ui.xmlfragment("mypackage.fragment.Dialog", this);
      }
      this.pressDialog1.open();
    },
    onCloseDialog: function () {
      this.pressDialog1.close();
    },

当我在控制台中调试它时,它会进入openDialog功能,但当我尝试关闭它时,它不会进入onCloseDialog。我还注意到控制台中有一个警告:

event handler function "onCloseDialog" is not a function or does not exist in the controller. 

为什么它不进入onCloseDialog功能?

@EditopenDialog 的调用方式如下:

var controllerName = "mypackage.ProdE"
sap.ui.controller(controllerName, {
  openDialog: function () {
        if (!this.pressDialog1) {
          this.pressDialog1 = sap.ui.xmlfragment("mypackage.fragment.Dialog", this)
          this.getView().addDependent(this.pressDialog1);
        }
        this.pressDialog1.open();
      },
    onCloseDialog: function () {
      this.pressDialog1.close();
    });

原因很简单,您的对话框未附加到控制器,因此它不会执行您实现的onCloseDialog方法。

这是处理对话框的正确方法:

onOpenDialog: function(oEvent) {
    if ( !this._oDialog ) {
        this._oDialog = sap.ui.xmlfragment(this.getView().getId(), "mypackage.fragment.Dialog", this);
        // This is important becuase your dialog will be attached to the view lifecycle
        this.getView().addDependent(this._oDialog);
    }
    this._oDialog.open();
},
ondialogClose: function(oEvent) {
    // Do cleaning stuff
    this._oDialog.close();
}

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