How to return a result startActivityForResult from a TabHost Activity

Question

I have 3 classes in my example  Class A  the main activity   Class A calls a startActivityForResult   Intent intent   new Intent this  ClassB class   startActivityForResult intent   STRING      Class B  this class is a TabActivity   Intent intent   new Intent this  ClassC class   tabHost addTab      Class C  this class is a regular Activity   Intent intent   this getIntent    intent putExtra  SOMETHING    EXTRAS    this setResult RESULT OK  intent   finish      onActivityResult is called in Class A  but the resultCode is RESULT CANCELED instead of RESULT OK and the returned intent is null   How do I return something from the Activity inside a TabHost   I realize that the problem is that my Class C is actually running inside of Class B  and Class B is what is returning the RESULT CANCELED back to Class A   I just don t know a work around yet

User · Answer

For start Activity 2 from  Activity 1 and get result  you could use startActivityForResult and implement onActivityResult in Activity 1 and use setResult in Activity2   Intent intent   new Intent this  Activity2 class   intent putExtra NUMERO1  numero1   intent putExtra NUMERO2  numero2     startActivity intent   startActivityForResult intent  MI REQUEST CODE

User · Answer

Oh  god  After spending several hours and downloading the Android sources  I have finally come to a solution   If you look at the Activity class  you will see  that finish   method only sends back the result if there is a mParent property set to null  Otherwise the result is lost   public void finish         if  mParent    null            int resultCode          Intent resultData          synchronized  this                resultCode   mResultCode              resultData   mResultData                    if  Config LOGV  Log v TAG   Finishing self  token     mToken           try               if  ActivityManagerNative getDefault                    finishActivity mToken  resultCode  resultData                     mFinished   true                          catch  RemoteException e                   Empty                 else           mParent finishFromChild this             So my solution is to set result to the parent activity if present  like that   Intent data   new Intent           if  getParent      null        setResult Activity RESULT OK  data     else       getParent   setResult Activity RESULT OK  data     finish      I hope that will be helpful if someone looks for this problem workaround again

User · Answer

You could implement a onActivityResult in Class B as well and launch Class C using startActivityForResult  Once you get the result in Class B then set the result there  for Class A  based on the result from Class C  I haven t tried this out but I think this should work   Another thing to look out for is that Activity A should not be a singleInstance activity  For startActivityForResult to work your Class B needs to be a sub activity to Activity A and that is not possible in a single instance activity  the new Activity  Class B  starts in a new task

User · Answer

Intent FLAG ACTIVITY FORWARD RESULT      If set and this intent is being used to launch a new activity from an   existing one  then the reply target of the existing activity will be   transfered to the new activity

User · Answer

http   tylenoly wordpress com 2010 10 27 how-to-finish-activity-with-results   With a slight modification for  param result      Start Activity    public void onClick View v        Intent intent   new Intent Intent ACTION VIEW       intent setClassName  com thinoo ActivityTest    com thinoo ActivityTest NewActivity        startActivityForResult intent 90        Called when the second activity s finished    protected void onActivityResult int requestCode  int resultCode  Intent data        switch requestCode        case 90          if  resultCode    RESULT OK                Bundle res   data getExtras                String result   res getString  param result                Log d  FIRST    result   result                     break           private void finishWithResult         Bundle conData   new Bundle        conData putString  param result    Thanks Thanks        Intent intent   new Intent        intent putExtras conData       setResult RESULT OK  intent       finish

[android] How to return a result (startActivityForResult) from a TabHost Activity?

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