I have temporarily found out a workaround for it. Initializing the arrays
and hashmaps to null at change of activity wont work as i have many
activities and all of them need to share these Data structures.
Thanks,
Alok
On Sat, Jan 2, 2010 at 10:20 PM, Yousuf Faheem <yousuf.syed....@gmail.com>wrote:
> Hi,
>
> Try initiallizing them to null before the change of activity takes place or
> at the start of home activity. Since your application is not closed(scope of
> the static objects), the static objects are there in memory allocated to
> that process and hence retain the value that you give.
>
> Thanks & Regards,
> Yousuf Syed
>
>
>
>
> On Sat, Jan 2, 2010 at 2:27 AM, Alok Kulkarni <kulsu...@gmail.com> wrote:
>
>> Hi guys, I am facing a problem in my application.
>> I have a few static arrays and Hashmaps in my app which i fill in when my
>> Activity starts.Then this activity later launches another Activity. Now
>> user presses Home button of Back button and again restarts the app, even
>> then the static objects remain in memory. I beleive this is default android
>> behaviour.
>> I have an example app.
>> package com.cm.test;
>>
>> import java.util.HashMap;
>>
>> import android.app.Activity;
>> import android.os.Bundle;
>> import android.util.Log;
>>
>> public class MyActivity extends Activity {
>> public static HashMap<String, String> hMap = new HashMap<String,
>> String>();
>>
>> /** Called when the activity is first created. */
>> @Override
>> public void onCreate(Bundle savedInstanceState) {
>> super.onCreate(savedInstanceState);
>> setContentView(R.layout.main);
>> Log.i("***","Hash map size = "+hMap.size());
>>
>> hMap.put("Alok","Alokkkk");
>> hMap.put("Jitu","Jituuuu");
>>
>> Log.i("***","Activity onCreate() called");
>> }
>> @Override
>> public void onDestroy()
>> {
>> Log.i("***","Activity onDestroy() called");
>> super.onDestroy();
>>
>> }
>>
>>
>> @Override
>> public void onResume()
>> {
>> super.onResume();
>> Log.i("***","Activity onResume() called");
>> }
>> @Override
>> public void onStop()
>> {
>>
>> super.onStop();
>>
>> Log.i("***","Activity onStop() called");
>> }
>>
>> }
>> Output First time is Size = 0. for 1st launch, Next for every launch ,
>> HashMap size is 2... If i use ArrayList , the size of ArrayList goes on
>> increasing.
>> I dont want this to happen.One thing was that to clear the HashMap in
>> onDestroy() or in onStop() in case user presses Home button. But my Activity
>> launches another ListActivity in it. So the alternae option is to clear the
>> Hashmaps in onDestroy() | onStop() of this activity.
>> I am not much clear when the Activity exits. From the posts that i have
>> read i found few things here
>> http://groups.google.com/group/android-developers/browse_thread/thread/4c1b8955ebfd5799?pli=1
>> The manifest part android:clearTaskOnLaunch=true does not work in my case.
>> What do you people suggest in this case?
>> Thanks,
>> Alok.
>>
>> --
>> You received this message because you are subscribed to the Google
>> Groups "Android Beginners" group.
>>
>> NEW! Try asking and tagging your question on Stack Overflow at
>> http://stackoverflow.com/questions/tagged/android
>>
>>
>> To unsubscribe from this group, send email to
>> android-beginners+unsubscr...@googlegroups.com<android-beginners%2bunsubscr...@googlegroups.com>
>>
>> For more options, visit this group at
>> http://groups.google.com/group/android-beginners?hl=en
>>
>
> --
> You received this message because you are subscribed to the Google
> Groups "Android Beginners" group.
>
> NEW! Try asking and tagging your question on Stack Overflow at
> http://stackoverflow.com/questions/tagged/android
>
>
> To unsubscribe from this group, send email to
> android-beginners+unsubscr...@googlegroups.com<android-beginners%2bunsubscr...@googlegroups.com>
>
> For more options, visit this group at
> http://groups.google.com/group/android-beginners?hl=en
>
--
You received this message because you are subscribed to the Google
Groups "Android Beginners" group.
NEW! Try asking and tagging your question on Stack Overflow at
http://stackoverflow.com/questions/tagged/android
To unsubscribe from this group, send email to
android-beginners+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-beginners?hl=en
