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Disable back button

Dani_Carla
Начинающий
7 297Просмотр.

Hi guys

How to disable the back button?
 

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1 Решение
Hamilton_Tenório_da_
Ценный участник I
7 297Просмотр.

I use this:

document.addEventListener("backbutton", yourCallbackFunction, false);

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17 Ответы
Amrita_C_Intel
Сотрудник
7 297Просмотр.

Hello,

Just uncheck this box on the upper right corner

BackButton_0.PNG

Hamilton_Tenório_da_
Ценный участник I
7 298Просмотр.

I use this:

document.addEventListener("backbutton", yourCallbackFunction, false);
Dani_Carla
Начинающий
7 297Просмотр.

Amrita C.
I dont use App Designer

Hamilton
I used your code
<script>
document.addEventListener("backbutton", yourCallbackFunction, false);   
</script>

But not work... I am using correctly?

Anusha_M_Intel1
Сотрудник
7 297Просмотр.

I am afraid I do not understand your question. 

You are not using App Designer but you want to disable back button? Where did this back button come from? Is it in your header? If so, can you post your header code?

 

Dani_Carla
Начинающий
7 297Просмотр.

Sorry... I mean the phone button:



I put red arrows... to see:

Dale_S_Intel
Сотрудник
7 297Просмотр.

Dani Carla wrote:

I used your code
<script>
document.addEventListener("backbutton", yourCallbackFunction, false);   
</script>

 

But not work... I am using correctly?

"yourCallbackFunction" is shorthand for "insert your own function here", so if you pasted that code as is without defining "yourCallbackFuncion", you'd get a problem because it's not defined.  You could probably do this:

<script>
document.addEventListener("backbutton", null, false);
</script>

Or you should be able to do this:

<script>
document.addEventListener("backbutton", function () {}, false);   
</script>

The point is to provide an event handler that doesn't do anything and the "false" is essentially to prevent it other handlers from acting on it.  The details are more complicated than that, but that's the gist.

Anusha_M_Intel1
Сотрудник
7 297Просмотр.

Use the Phonegap's event API. Add this code in your device ready.

document.addEventListener("deviceready", onDeviceReady, false);
    function onDeviceReady() {
        document.addEventListener("backbutton", function (e) {
            e.preventDefault();
        }, false );
}

 

Dani_Carla
Начинающий
7 297Просмотр.

Sorry guys... Dont work in these options :(

Amrita_C_Intel
Сотрудник
7 297Просмотр.

 

Try using the event shown here to leverage Intel XDK JavaScript APIs assuming you are going to build with cordova. Using this event should allow you get the functionality 
https://software.intel.com/en-us/node/493108

John_H_Intel2
Сотрудник
7 297Просмотр.

Make sure to enable the appropriate intel.xdk plugin for it to work correctly :)

Dale_S_Intel
Сотрудник
7 297Просмотр.

This worked for me:

  1. Create a new "HTML5 + Cordova" project
  2. Add this code to the function onAppReady() in the file js/app.js:

        document.addEventListener('backbutton', function() {alert("Intercepted");}, false);

  3. Run this code on a device (I tried it using the debug tab on a usb connected Android phone

  4. Press the back button - you should see an alert that says "Intercepted"
  5. After dismissing the alert, you should still be in your app, not back to the home screen

 

Mario_R_
Начинающий
7 297Просмотр.

Dale Schouten (Intel) wrote:

This worked for me:

  1. Create a new "HTML5 + Cordova" project
  2. Add this code to the function onAppReady() in the file js/app.js:

        document.addEventListener('backbutton', function() {alert("Intercepted");}, false);

  3. Run this code on a device (I tried it using the debug tab on a usb connected Android phone

  4. Press the back button - you should see an alert that says "Intercepted"
  5. After dismissing the alert, you should still be in your app, not back to the home screen

 

Hello Dale,

I followed your instructions step by step but it does not work. After allert the app closes. I tested on Android using the Ionic framework.
I am attaching the project file, are a few lines to test the BackButton.

Could you explain what has gone wrong?
Thank you

 

 

PaulF_IntelCorp
Сотрудник
7 297Просмотр.

Mario -- official Cordova instructions here > http://cordova.apache.org/docs/en/6.x/cordova/events/events.html#backbutton <

Mario_R_
Начинающий
7 297Просмотр.

Paul F. (Intel) wrote:

Mario -- official Cordova instructions here > http://cordova.apache.org/docs/en/6.x/cordova/events/events.html#backbutton <

Paul, does not work, I invite you to watch the simple project attached "HTML5 + Cordova" with Ionic and test it on an Android device.
I added some alert in the code that you suggested. After pressing the backbutton on smartphone displays the alert, then the application closes (Android).

Thank you

Abhinay_M_
Начинающий
7 297Просмотр.

 Hello guys,

 I am working on cordova and i am stuck on mobile's back button pressed. I want to disable back button so that user can only use app's back button for that i need to disable the back button it is not working. Can anyone please tell me how to do this?

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