CODEWITHSUNDEEP
androidandroid-intentxamarin.android
Sunkas
Sunkas

Reputation: 9590

Activity restarts on Finish()

I have a login-activity which I only want to show on startup and if the user logs out. So when the user is in the loggedin activity and clicks on the back-button I want to close the app rather than go back to the login activity.

I have successfully overwritten the back button callback: 

public override bool OnKeyDown(Keycode keyCode, KeyEvent e)
{
    if (keyCode == Keycode.Back)
    {
        Console.Out.WriteLine("Close activity");
        return true;
    }

    return base.OnKeyDown(keyCode, e);
}

which stops the backbutton from going back to the previous activity. However, including Finish(); before return true does make the login activity reappear :(

This is the code I use after login:

Intent activity = new Intent(this, typeof(WorkOrderActivity));
StartActivity(activity);

Have tried a couple of Intentflags and LaunchModes but cant get it to work. According to the logs only one activity is started after login.

Upvotes: 0

Views: 4308

Answers (4)

Plumillon Forge
Plumillon Forge

Reputation: 1643

It's the normal behaviour to show the previous Activity after finish()

The finish() method just close the Activity which call it

You can hide your login form and check the user login status on your onResume() login Activity (and finish it if he is logged)

Upvotes: 2

moDev
moDev

Reputation: 5258

Try this it works..

Intent mIntent = new Intent(this, WorkOrderActivity.class);
mIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(mIntent);

finish();

Upvotes: 3

Artem Zelinskiy
Artem Zelinskiy

Reputation: 2210

public override bool OnKeyDown(Keycode keyCode, KeyEvent e)
{
    if (keyCode == Keycode.Back)
    {
        moveTaskToBack(true);
        return true;
    }

    return base.OnKeyDown(keyCode, e);
}

Upvotes: 0

tundundun
tundundun

Reputation: 644

You should clear stack when starting another activity from Login activity.

Intent intent = new Intent(LoginActivity.this, HomeActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK |      Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);

And when user logout you can start LoginActivity.

Upvotes: 0

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