how to press back button programmatically in android

Question

A SERVICE I HAVE NOT ANY ACTIVITY is running in forebackground and when user click on app button i want do function of hardware back button onBackPressed is not working inside service!!

onClick() handler of the button, use super.onBackPressed() to go back to preivous activity — venkata krishnan, Sep 14 '17 at 09:11

AskNilesh · Answer 1 · 2017-09-14T09:19:01.677

4

Is it not possible to programmatically press the back button on android through a service

onBackPressed() Called when the activity has detected the user's press of the back key.

you need to just call onBackPressed() method don't forgot override onBackPressed() in your activity

@Override
    public void onBackPressed() {
        super.onBackPressed();   
        // perform your action here

    }

edited Sep 14 '17 at 09:19

answered Sep 14 '17 at 09:08

AskNilesh

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1

@dornadev **Is it not possible to programmatically press the back button on android through a service** – AskNilesh Sep 14 '17 at 09:17
I DEVELOPED HOME BUTTON AND RECENT BUTTON JUST NEED TO BACK BUTTON – dornadev Sep 14 '17 at 09:21
explain in brief @dornadev **I DEVELOPED HOME BUTTON AND RECENT BUTTON JUST NEED TO BACK BUTTON** – AskNilesh Sep 14 '17 at 09:30
OP has a `Service`. He wants to press the BACK button programatically. He doesn't have an `Activity` running, so can't call any methods of `Activity`. This answer is not relevant. – David Wasser Sep 15 '17 at 12:12
@DavidWasser i know that read first line of my ans **Is it not possible to programmatically press the back button on android through a service** – AskNilesh Sep 15 '17 at 12:14

score 2 · Answer 2 · answered Sep 14 '17 at 10:55

2

Currently, it's not possible to press "BACK" from service. Since you don't have an activity in the foreground, you don't have the ability to programmatic to press a BACK press, due the fact the service not provide any user interface. What is the option - If you have a rooted device with an access to shell you can try to use the following command in the service Process process = Runtime.getRuntime().exec("adb shell input keyevent 4");

answered Sep 14 '17 at 10:55

Android and Security Guru

106
4

Good idea, I'm trying it but if used in an activity it works, while in a service (floating window) it doesn't do anything, do you have an idea why? – gidanmx2 Jun 14 '22 at 18:27

Vishal Vaishnav · Answer 3 · 2017-09-14T09:16:42.170

0

You can handle back button operation like this;

@Override
public void onBackPressed() {
// your code.
}

otherwise try below code;

@Override
 public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
    // your code
    return true;
}

return super.onKeyDown(keyCode, event);
}

edited Sep 14 '17 at 09:16

answered Sep 14 '17 at 09:10

Vishal Vaishnav

3,346
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OP doesn't want to detect the BACK button being pressed. He wants to press it himself programatically. This answer is not relevant. – David Wasser Sep 15 '17 at 12:12

score 0 · Answer 4 · answered Sep 14 '17 at 09:26

0

You can handle back button operation like this;

 @Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle item selection
    switch (item.getItemId()) {
        //Home Button!
        case android.R.id.home:
            finish();
            return true;
        default:
            return super.onOptionsItemSelected(item);
    }
}

answered Sep 14 '17 at 09:26

Muhammad Rayyan Siddiqui

41
8

OP doesn't want to detect the BACK button being pressed. He wants to press it himself programatically. This answer is not relevant. – David Wasser Sep 15 '17 at 12:10

how to press back button programmatically in android

4 Answers4