Check if PWA is already installed

Hi Ivan,

There is an event that fires when the standalone application is successfully installed in Chrome and Edge, you can add this to Default.html to use a WebMethod called AppInstalled():

 window.onappinstalled = function () {
    App.MainPage.AppInstalled();
 };

This event only fires for the first initial install.

There is apparently another way to check if the PWA is installed using navigator.getInstalledRelatedApplications(), but it does not look like it’s completed or working yet.

You can check if the Wisej application is currently running as a PWA standalone application with the following code:

private async void button3_Click(object sender, EventArgs e)
{
    var isStandalone = await EvalAsync("window.matchMedia('(display-mode: standalone)').matches");

    AlertBox.Show($"Standalone Application: {isStandalone}");
}

HTH,

Levie