What is the reason that your HashMap and arrays are static? Perhaps
they are a component of each instance of your Activity, rather than
having a single HashMap and arrays for all instances?
On Jan 2, 12:27 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
> herehttp://groups.google.com/group/android-developers/browse_thread/threa...
> The manifest part android:clearTaskOnLaunch=true does not work in my case.
> What do you people suggest in this case?
> Thanks,
> Alok.
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