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.
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