Close pop up on back button

Question

I want to close pop up on click of back button for mobile. I implemented this using onhashchange:

window.onhashchange = function (event) {

};

Answer 1

if (window.history && window.history.pushState) {
    $('#myModal').on('show.bs.modal', function (e) {
        window.history.pushState('forward', null, './#modal');
    });

    $(window).on('popstate', function () {
        $('#myModal').modal('hide');
    });
}

Answer 2

I'll did it like this :

// 2.0 and above
@Override
public void onBackPressed(evt) {
    evt.preventDefault();
    closeTab();
}

// Before 2.0
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK) {
        evt.preventDefault();
        closeTab();
        return true;
    }
    return super.onKeyDown(keyCode, event);
}

--> These are handlers btw, need addEventListener =)

I've done it by memory, i'll check it later when i find it in my 'code mess' folder

Answer 3

according to http://www.mylearning.in/2015/06/close-modal-pop-up-on-back-button.html

    $('#myModal').on('show.bs.modal', function(e) {
        window.location.hash = "modal";
    });

    $(window).on('hashchange', function (event) {
        if(window.location.hash != "#modal") {
            $('#myModal').modal('hide');
        }
    });

Answer 4

This is my solution for bootstrap modals. It adds support closing with back button to all bootstrap modals. You can adapt it for your non-bootstrap popups.

//Modal Closer With Back Button Support (Uses EventDelegation, so it works for ajax loaded content too.)
(function() {
    var activeOpenedModalId     = null;
    var isHidingModalByPopState = false;
    $(document).on('show.bs.modal', '.modal', function() {
        activeOpenedModalId  = $(this).attr('id');
        window.location.hash = activeOpenedModalId;
    }).on('hide.bs.modal', '.modal', function() {
        if(!isHidingModalByPopState) {
            window.history.back();
        }
        isHidingModalByPopState = false;
        activeOpenedModalId     = null;
    });
    $(window).on('popstate', function() {
        if(activeOpenedModalId && window.location.hash !== '#'+activeOpenedModalId) {
            isHidingModalByPopState = true;
            $("#" + activeOpenedModalId).modal('hide');
        }
    });
})();

Answer 5

My Solution in Angular

// push history state when a dialog is opened
dialogRef.afterOpened.subscribe((ref: MatDialogRef<any, any>) => {
  window.history.pushState(ref.id, '');
  // pop from history if dialog has not been closed with back button, and gurrent state is still ref.id
  ref.afterClosed().subscribe(() => {
    if (history.state === ref.id) {
      window.history.go(-1);
    }
  });
});

Answer 6

This could be done easily using Apache Cordova but not sure if you are using it to show your page in webview.

function onBackKeyDown(e) {
  e.preventDefault();

}
document.addEventListener("backbutton", onBackKeyDown, false);

http://cordova.apache.org/docs/en/2.4.0/cordova_events_events.md.html#backbutton