Finish an activity from another activity

Question

I want to finish one activity from another activity  like   In Activity  A   on button click  I am calling Activity  B  without finishing Activity  A    Now in Activity  B   there are two buttons  New and Modify  When the user clicks on modify then pop an activity  A  from the stack with all the options ticked    But when the user click on New button from Activity  B   then I will have to finish Activity  A  from the stack and reload that Activity  A  again into the stack   I am trying it  but I am not able to finish Activity  A  from the stack    How can I do it   I am using the code as   From Activity  A    Intent GotoB   new Intent A this B class   startActivityForResult GotoB 1     Another method in same activity  public void onActivityResult int requestCode  int resultCode  Intent intent         if  requestCode    1                if  resultCode    1                Intent i   getIntent                overridePendingTransition 0  0               i addFlags Intent FLAG ACTIVITY NO ANIMATION               finish                 overridePendingTransition 0  0               startActivity i                       And in Activity  B   on button click   setResult 1   finish

User · Answer

That you can do  but I think you should not break the normal flow of activity  If you want to finish you activity then you can simply send a broadcast from your activity B to activity A   Create a broadcast receiver before starting your activity B   BroadcastReceiver broadcastReceiver   new BroadcastReceiver           Override     public void onReceive Context arg0  Intent intent            String action   intent getAction            if  action equals  finish activity                  finish                   DO WHATEVER YOU WANT                     registerReceiver broadcastReceiver  new IntentFilter  finish activity       Send broadcast from activity B to activity A when you want to finish activity A from B  Intent intent   new Intent  finish activity    sendBroadcast intent     I hope it will work for you

User · Answer

This is a fairly standard communication question  One approach would be to use a ResultReceiver in Activity A   Intent GotoB new Intent A this B class   GotoB putExtra  finisher   new ResultReceiver null         Override     protected void onReceiveResult int resultCode  Bundle resultData            A this finish              startActivityForResult GotoB 1     and then in Activity B you can just finish it on demand like so     ResultReceiver getIntent   getExtra  finisher    send 1  new Bundle       Try something like that

User · Answer

I think i have the easiest approach    on pressing new in B    Intent intent   new Intent B this  A class   intent putExtra  NewClicked   true    intent setFlags Intent FLAG ACTIVITY CLEAR TOP   startActivity intent     and in A get it     if  getIntent   getBooleanExtra  NewClicked   false             finish      finish yourself and make a create a new Instance of yours        Intent intent   new Intent A this A class         startActivity intent

User · Answer

See my answer to Stack Overflow question Finish All previous activities   What you need is to add the Intent FLAG CLEAR TOP  This flag makes sure that all activities above the targeted activity in the stack are finished and that one is shown   Another thing that you need is the SINGLE TOP flag  With this one you prevent Android from creating a new activity if there is one already created in the stack    Just be wary that if the activity was already created  the intent with these flags will be delivered in the method called onNewIntent intent   you need to overload it to handle it  in the target activity   Then in onNewIntent you have a method called restart or something that will call finish   and launch a new intent toward itself  or have a repopulate   method that will set the new data  I prefer the second approach  it is less expensive and you can always extract the  onCreate logic into a separate method that you can call for populate

User · Answer

Make your activity A in manifest file  launchMode    singleInstance  When the user clicks new  do FirstActivity fa finish    and call the new Intent  When the user clicks modify  call the new Intent or simply finish activity B    FIRST WAY  In your first activity  declare one Activity object like this   public static Activity fa  onCreate         fa   this      now use that object in another Activity to finish first-activity like this   onCreate         FirstActivity fa finish        SECOND WAY  While calling your activity FirstActivity which you want to finish as soon as you move on  You can add flag while calling FirstActivity  intent addFlags Intent FLAG ACTIVITY NO HISTORY     But using this flag the activity will get finished evenif you want it not to  and sometime onBack if you want to show the FirstActivity you will have to call it using intent

User · Answer

Start your activity with request code    StartActivityForResult intent 1234     And you can close it from any other activity like this    finishActivity 1234

User · Answer

First call startactivity   then use finish

User · Answer

I know this is an old question  a few of these methods didn t work for me so for anyone looking in the future or having my troubles this worked for me  I overrode onPause and called finish   inside that method

User · Answer

I ve just applied Nepster s solution and works like a charm  There is a minor modification to run it from a Fragment   To your Fragment     sending intent to onNewIntent   of MainActivity Intent intent   new Intent getActivity    MainActivity class   intent putExtra  transparent nav changed   true   intent setFlags Intent FLAG ACTIVITY CLEAR TOP   startActivity intent     And to your OnNewIntent   of the Activity you would like to restart      recreate activity when transparent nav was just changed if  getIntent   getBooleanExtra  transparent nav changed   false         finish       finish and create a new Instance     Intent restarter   new Intent MainActivity this  MainActivity class       startActivity restarter

User · Answer

There is one approach that you can use in your case   Step1  Start Activity B from Activity A  startActivity new Intent A this  B class      Step2  If the user clicks on modify button start Activity A using the FLAG ACTIVITY CLEAR TOP Also  pass the flag in extra   Intent i   new Intent B this  A class   i setFlags Intent FLAG ACTIVITY CLEAR TOP   i putExtra  flag    modify    startActivity i   finish      Step3  If the user clicks on Add button start Activity A using the FLAG ACTIVITY CLEAR TOP Also  pass the flag in extra  FLAG ACTIVITY CLEAR TOP will clear all the opened activities up to the target and restart if no launch mode is defined in the target activity   Intent i   new Intent B this  A class   i setFlags Intent FLAG ACTIVITY CLEAR TOP   i putExtra  flag    add    startActivity i   finish      Step4  Now onCreate   method of the Activity A  need to retrieve that flag   String flag   getIntent   getStringExtra  flag    if flag equals  add            Write a code for add  else         Write a code for modifying

[android] Finish an activity from another activity

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