Troubleshooting unresponsive buttons within a $timout/ setTimeout function in Angular and Ionic

I am trying to implement a popup with a slight delay. However, I am encountering issues where the buttons are not functioning properly without the delay, and they do not appear when I add the delay. I have come across information online mentioning that $timeout is an async function, but I am unsure if that is the root cause of the problem.

Below is the code for the popup:

var myPopup = $ionicPopup.show({
    templateUrl: 'templates/components/welcomePopup.html',
    scope: $scope,
    buttons: [{
        text: 'Goodbye!',
        type: 'custom-save-button',
        onTap: function (e) {
            $scope.showSpinner = true
        }
    }]
})

Here is how I am attempting to delay it:

$timeout(function () {
    // Popup content here
}, 3000)

Whenever I add a delay, the buttons do not appear, and without the delay, nothing functions as expected.

buttons: [{
    text: 'Goodbye!',
    type: 'custom-save-button',

Does anyone have a solution for this issue?

Current implementation:

$timeout(function() {
    var myPopup = $ionicPopup.show({
        templateUrl: 'templates/components/welcomePopup.html',
        scope: $scope,
        buttons: [{
            text: 'Goodbye!',
            type: 'custom-save-button',
            onTap: function (e) {
                $scope.showSpinner = true
            }
        }]
    })
}, 3000)

Thank you for your time! :)

Answer №1

After grappling with the issue, I was able to crack half of the problem. My intuition led me to believe that the root of the problem lay with the $scope variable, and my hunch turned out to be accurate.

Consequently, I introduced a new $scope here:

var myPopup = $ionicPopup.show({
    templateUrl: 'templates/components/welcomePopup.html',
    scope: $scope.$scope, // included $scope
    buttons: [{
        text: 'Goodbye!',
        type: 'custom-save-button',
        onTap: function (e) {
            $scope.showSpinner = true

        }
    }]
})

Nevertheless, the buttons remain non-functional at this point!

Answer №2

It seems like the issue with your button not working is due to the context change in your $scope when using a timeout function. Once you perform an action within the timeout context, you are no longer within the controller context.

When you click the button, the showSpinner variable should be updated to true. The problem arises because Angular does not detect this change and hence does not update the view accordingly.

To resolve this issue, you can force a view refresh by adding the following code snippet after updating the variable in your scope:

if ($scope.$root.$$phase !== '$apply' && $scope.$root.$$phase !== '$digest') {
    $scope.$apply();
}

This condition helps prevent unnecessary refresh requests when a refresh is already in progress. Therefore, it may not be necessary to pass a separate $scope within your main $scope.

I hope this explanation helps resolve the issue with your button functionality!

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