How to disable back key button in Android

Question

I really want a straight forward answer as I always on the dead end. How to disable back button ( the hardware back button ) and where did I need to write the code to disable it ? I just want user of my apps to use the navigation on my apps.

I hope you have a good reason to disable it. Users hate it when things don't work like they expect, like not having a back button. — Mike Park, Jun 21 '13 at 04:22
You can override the `onBackPressed()` method on your activities to suppress the back button behavior, but you really shouldn't do this. If you can't architect your app in a way that allows using the back button, I suggest you re-think your app's navigation. — Karakuri, Jun 21 '13 at 04:25
https://www.google.co.in/search?q=How+to+disable+back+key+button+in+Android&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a&channel=rcs.............. plz use google — Sam, Jun 21 '13 at 04:25
@climbage i'am making an online radio apps. so there will be no need for user to use the back button. the user can navigate it using the apps. — Fadzhli Azmandin, Jun 21 '13 at 04:40

amalBit · Answer 1 · 2013-06-21T05:37:30.903

3

after your onCreate just:

    @Override
    public void onBackPressed() {

    }

Now if you want to do anyUpdate before backButton:

      @Override
   public void onBackPressed() {
      //your function that updates
    }

Api :

Go to your manifest and see the tab, the minimumSDK there should be 5.

SDK_INT value        Build.VERSION_CODES        Human Version Name       
1                    BASE                    Android 1.0
2                  BASE_1_1                  Android 1.1
3                   CUPCAKE                  Android 1.5 Cupcake
4                    DONUT                   Android 1.6 Donut
5                   ECLAIR                   Android 2.0 Eclair
6                   ECLAIR_0_1               Android 2.0.1 Eclair                  
7                   ECLAIR_MR1               Android 2.1 Eclair
8                   FROYO                    Android 2.2 Froyo
9                  GINGERBREAD               Android 2.3 Gingerbread
10                  GINGERBREAD_MR1           Android 2.3.3 Gingerbread
11                  HONEYCOMB                 Android 3.0 Honeycomb
12                  HONEYCOMB_MR1             Android 3.1 Honeycomb
13                  HONEYCOMB_MR2             Android 3.2 Honeycomb
14                  ICE_CREAM_SANDWICH        Android 4.0 Ice Cream Sandwich
15                  ICE_CREAM_SANDWICH_MR1    Android 4.0.3 Ice Cream Sandwich
16                  JELLY_BEAN                Android 4.1 Jellybean
17                  JELLY_BEAN_MR1            Android 4.2 Jellybean
10000                CUR_DEVELOPMENT           Current Development Build

edited Jun 21 '13 at 05:37

answered Jun 21 '13 at 04:24

amalBit

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can i know where to paste this code. – Fadzhli Azmandin Jun 21 '13 at 04:37
Right after your oncreate finishes – amalBit Jun 21 '13 at 04:39
already paste this code after oncreate. but still i can use my back button. – Fadzhli Azmandin Jun 21 '13 at 04:43
make sure, there is no code inside it. and also this supports only api level 5 and above. – amalBit Jun 21 '13 at 04:46
sorry to ask, how to check my apps api level ? – Fadzhli Azmandin Jun 21 '13 at 04:51
still the code did not work after changing the minimum api level – Fadzhli Azmandin Jun 21 '13 at 08:33
Post the code that you have tried. – amalBit Jun 21 '13 at 09:04
can i have your personal email as i have a lot of question to ask about phonegap on android. – Fadzhli Azmandin Jun 24 '13 at 04:28
Its there in my profile. And I havent worked with phonegap. – amalBit Jun 24 '13 at 05:05

score 1 · Answer 2 · answered Jun 21 '13 at 04:20

1

Override the onKeyDown method within the activiy where you want to disable back key.

public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KEYCODE_BACK) {
        return true;
    return false;
}

Note that returning true from onKeyDown will disable the default behavior

answered Jun 21 '13 at 04:20

stinepike

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I'm sorry but your coding didn't work for me. – Fadzhli Azmandin Jun 21 '13 at 04:27
and how did you implemented my codes? – stinepike Jun 21 '13 at 04:29
I paste this code on my java files. Can you assist me on where is the right place to paste it ? – Fadzhli Azmandin Jun 21 '13 at 04:38

score 0 · Answer 3 · edited May 23 '17 at 12:05

0

What amalBit said is correct.If you have problem in overriding function, In Eclipse press Alt+Shift+S or Source Menu and select Override/Implement Methods and select onBackPressed() method and leave it back.

edited May 23 '17 at 12:05

Community

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answered Jun 21 '13 at 04:54

Naresh

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I already use override method but still my i can use my back button. This is so frustrating – Fadzhli Azmandin Jun 21 '13 at 09:02

How to disable back key button in Android

3 Answers3

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