Exit/Finish an app/activity - android

Question

I've got 4 activities say Act1, Act2, Act3 and Act4. A button in Act1 opens Act2, a button in Act2 opens Act3, a button in Act3 opens Act4.

I want two things to be done:

1. I've a button in Act4 which directs the user to Act1, the prob is when the user clicks back in Act1, i want to close the app instead of opening the Act4..

2. I've option in menu 'exit' in all activities when the user choose it, i want to close the app instead of going back to previous activity.

Tried using finish(); but it didn't meet my requirements.

Nicely

Try this answer – Burweed

you can find your answer here............. [check out this..........][1] [1]: #11077520 – Kingbolt

There was an almost exact duplicate asked sometime ago today here I would recommend reading this post to understand why you should not implement what you are trying. – Tacita

here is what you need............ [here][1] [1]: #11077520 – Kingbolt

thanks guys will try all those out n get back :) – Nicely

Have you got whatever you need? – Burweed

Answer 1

Use below code in your Act4'th Menu.xml's exit button -

Intent intent = new Intent(Act4.this, Act1.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("EXIT", true);
startActivity(intent);

And, in your first activity's onCreate() method just put the below code -

if (getIntent().getBooleanExtra("EXIT", false)) 
{
    finish();
}

This will exit your app.

Burweed

Even if you call finish(), your super.onCreate() method will be called regardless. And then Android can reset your whole activity stack if you're not careful. – Regelate

@IgorG. Then, what's the best way to finish this? – Burweed

Your way is good. But I'm saying to be careful, that if a super.onDestroy() or super.onCreate() is pending, then those will still get called after you call finish(). And that's when you can have undesired behavior if you have subclassed another activity's onCreate() or onResume(). – Regelate

I am using bound service in my project and this is not closing my app from child activity. – Eubanks

My Act1.class is MainActivity. If I use System.exit in place of finish(); then it is working. – Ponceau

Answer 2

Check out this link:

Click here

You can use :

@Override
public void onBackPressed()
{
     moveTaskToBack(true);
}

in all activities to close the app.

Rind

Hi, Have you tried this before? Because, it won't exit the app. Its just run the app in background – Burweed

Ok. I've given one link. Check all answers on that. – Rind

This doesn't exit the app. It moves the task to the background. If the user then uses long-press on the HOME key and selects this app, it will return to the foreground with the activities still in the task as they were before. – Unthinking

Best Answer ever for my case that has multi activity, its the only answer that works with me – Mackey

Answer 3

Intent intent = new Intent(Act4.this, Act1.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);

Clear the flag before you switch back to previous activity. It might help you.

Novation

Answer 4

Place this code in your app:

moveTaskToBack(true);
android.os.Process.killProcess(Process.myPid());
System.exit(1);

Chalmers

Answer 5

finish previous activity when you are go to the next activity means write finish(); after startactivity(intent); and write below code for start first activity from fourth activity's button click event.

Intent in1=new Intent(Act4.this, Act1.class);
startActivity(in1);
finish();

And Write Below Code on Your Exit Button's Click event in all activities.

finish();

Spoiler

Answer 6

Use android:noHistory = "true" in your AndroidManifest.xml file

    <activity
        android:name=".Act1"
        android:noHistory="true" />
    <activity
        android:name=".Act2"
        android:noHistory="true" />
    <activity
        android:name=".Act3"
        android:noHistory="true" />
    <activity
        android:name=".Act4"
        android:noHistory="true" />

Paris

Answer 7

The approach I use is to start all child activities with startActivityForResult. Then I can putExtra("STATE", some_value) on exiting any child and use the state value to determine what to do up through the parents.

If I want to exit the app from a deep child, "STATE" would be "exit" and each child in the hierarchy would simply get the StringExtra for "exit", do a putExtra("STATE", "exit") and call finish() and then the app would call finish() in the end. You can use this to achieve any desired state.

Using startActivityForResult to pass messages this way avoids having to pass awkward references down into the child activities and simplifies your approach to setting the desired state of the app.

Mattland

Answer 8

If you have another activity behind ( in the application activity stack), you could use finish() to exit the current activity.

However, the back function too suppose to remove the current activity from your application activity stack.

In my experience, it is very unreliable to rely on the activities in the back stack ( in the application activity stack). Because of that I used to exit each activity when I go deeper.

In your case:

Act 1 -> exit -> Act 2 -> exit -> Act 3 -> exit -> Act 4 -> exit -> Act 1 -> exit 

The above method will exit all the activities.

However, if you want to run some code in the background, it is better to rely on a "Service" rather than an "Activity". You can let the "Service" exit after doing its assigned work.

Fouquiertinville

Answer 9

Do a 
<code>

try
{
finalize();
finish
}
catch(Exception error)
{
error.printStackTrace();
}
//This would exit your App neatly
</code>

Matthewmatthews

Answer 10

I use this method :
1. Create static activity in the first activity that will close the remaining activity(s).
2. Then call it in the static method like this, it will close the app from wherever you call it.

public static Activity activity;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    activity=this;
}
public static void CloseApp(){
    activity.finish();
} 

Devoted

Answer 11

Tray this one

Intent intent =new Intent(MainActivity.this, ClassName.class);
  finish
startActivity(intent);

Fezzan

Answer 12

Start Activity1 using intent and try calling finishAffinity() in onBackPressed() of Activity1.

Hepler