Manually trigger Pull to refresh on Container

问题

If I want to manually trigger Pull to Refresh on Container in Codename One after the load of the form. Please advise if anyone have any idea.

回答1:

It's easy, the trick is the use of the showListener. Suppose that this is the starting code (taken from the Codename One Developer Guide, section "Pull to refresh"):

    Form hi = new Form("Pull To Refresh", BoxLayout.y());
    hi.getContentPane().addPullToRefresh(() -> {
        hi.add("Pulled at " + L10NManager.getInstance().formatDateTimeShort(new Date()));
    });
    hi.show();

To invoke the "Pull to Refresh" listener after the load of the Form, you can do so:

    Form hi = new Form("Pull To Refresh", BoxLayout.y());
    Runnable myRunnable = () -> {
        hi.add("Pulled at " + L10NManager.getInstance().formatDateTimeShort(new Date()));
    };
    hi.getContentPane().addPullToRefresh(() -> {
        myRunnable.run();
    });
    hi.addShowListener(l -> {
        myRunnable.run();
    });
    hi.show();

来源：https://stackoverflow.com/questions/51183183/manually-trigger-pull-to-refresh-on-container