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Step 18: Icons

Our dialog is still pretty much empty. Since OpenUI5 is shipped with a large icon font that contains more than 500 icons, we will add an icon to greet our users when the dialog is opened.

 

Preview

An icon is now displayed in the dialog box

You can access the live preview by clicking on this link: 🔗 Live Preview of Step 18.

To download the solution for this step as a zip file, just choose the link here: 📥 Download Solution for Step 15.

Coding

webapp/view/HelloPanel.view.xml

We add an icon to the button that opens the dialog. The sap-icon:// protocol is indicating that an icon from the SAP icon font should be loaded. The identifier world is the readable name of the icon in the icon font.

<mvc:View
   controllerName="ui5.walkthrough.controller.HelloPanel"
   xmlns="sap.m"
   xmlns:mvc="sap.ui.core.mvc">
   <Panel
      headerText="{i18n>helloPanelTitle}"
      class="sapUiResponsiveMargin"
      width="auto" >
      <content>
         <Button
            id="helloDialogButton"
            icon="sap-icon://world"
            text="{i18n>openDialogButtonText}"
            press=".onOpenDialog"
            class="sapUiSmallMarginEnd"/>
         <Button
            text="{i18n>showHelloButtonText}"
            press=".onShowHello"
            class="myCustomButton"/>
         <Input
            value="{/recipient/name}"
            valueLiveUpdate="true"
            width="60%"/>
         <FormattedText
            htmlText="Hello {/recipient/name}"
            class="sapUiSmallMargin sapThemeHighlight-asColor myCustomText"/>
      </content>
   </Panel>
</mvc:View>

💡 Tip:
You can look up other icons using the Icon Explorer tool. To call any icon, use its name as listed in the Icon Explorer in sap-icon://<iconname>.

webapp/view/HelloDialog.fragment.xml

In the dialog fragment, we add an icon control to the content aggregation of the dialog. Luckily, the icon font also comes with a “Hello World” icon that is perfect for us here. We also define the size of the icon to 8rem and set a medium margin on it.

<core:FragmentDefinition
   xmlns="sap.m"
   xmlns:core="sap.ui.core" >
   <Dialog
      id="helloDialog"
      title="Hello {/recipient/name}">
      <content>
         <core:Icon
            src="sap-icon://hello-world"
            size="8rem"
            class="sapUiMediumMargin"/>
      </content>
      <beginButton>
         <Button
            text="{i18n>dialogCloseButtonText}"
            press=".onCloseDialog"/>
      </beginButton>
   </Dialog>
</core:FragmentDefinition>

Conventions

  • Always use icon fonts rather than images wherever possible, as they are scalable without quality loss (vector graphics) and do not need to be loaded separately.

 

Next: Step 19: Aggregation Binding

Previous Step 17: Fragment Callbacks

Related Information

Icon and Icon Pool

API Reference: sap.ui.core.Icon

Samples: sap.ui.core.Icon