Navigate to card without Button action-CodePudding

I try to make a login screen so add card for login [username & password & button(Action)] this action works fine and execute the code correctly but at end i want to leave the card to another one, based on Google document i have to add action to navigate, but i don't know how to navigate from the code.

function LoginCard() {
    let cardSection1TextInput1 = CardService.newTextInput()
        .setFieldName('username')
        .setTitle('Email')
        .setMultiline(false);

    let cardSection1TextInput2 = CardService.newTextInput()
        .setFieldName('password')
        .setTitle('Password')
        .setMultiline(true);

    let cardSection1ButtonList1Button1Action1 = CardService.newAction()
       .setFunctionName('handleLogin') // <-- This Works Fine

    let cardSection1ButtonList1Button1 = CardService.newTextButton()
        .setText('Login')
        .setBackgroundColor('#1cdcf4')
        .setTextButtonStyle(CardService.TextButtonStyle.FILLED)
        .setOnClickAction(cardSection1ButtonList1Button1Action1);

    let cardSection1ButtonList1 = CardService.newButtonSet()
        .addButton(cardSection1ButtonList1Button1);

    let cardSection1 = CardService.newCardSection()
        .addWidget(cardSection1Image1)
        .addWidget(cardSection1TextInput1)
        .addWidget(cardSection1TextInput2)
        .addWidget(cardSection1ButtonList1);


    let card = CardService.newCardBuilder()
        .addSection(cardSection1);
    return card.build();
}

function handleLogin(e) {
    try {       
          let nav = CardService.newNavigation().pushCard(Dashboard());
            CardService.newActionResponseBuilder()
            .setNavigation(nav)
            .build();
          // This not navigate to anyway!!
    }catch(e){
    Logger.log(e);
    }
}

searching but no cleat answer and no exception at that line

CodePudding user response：

to show card you have to make the function return the new card, try the below code :

function handleLogin(e) {
    try {       
          let nav = CardService.newNavigation().pushCard(Dashboard());
            return CardService.newActionResponseBuilder()
            .setNavigation(nav)
            .build();

    }catch(e){
    Logger.log(e);
    }
}