Question

I have button.Onclicking button it cals->choose Browser->on choosing Browser it loads my Url.
on coming back from browser,all my previous locally set variable value are cleared.Variables have have values that are initialized with them.
for ex:

i=0.

inside method i assign i=10

call browser now //
i use this code to call browser

Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(strUrl));

intent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);

startActivity(Intent.createChooser(intent, "Choose browser"));

it loads Url//

now on coming back to activity

Varialble (i) value becomes 0.

Answer 1

You need to understand the lifecycle of an Activity a little better. When you leave and return from an Activity state is not automatically persisted.

Android Lifecycle: http://developer.android.com/training/basics/activity-lifecycle/index.html

You should use onSavedInstanceState to restore your state when you return to your Activity. This is the code example the (linked) docs give:

static final String STATE_SCORE = "playerScore";
static final String STATE_LEVEL = "playerLevel";
...

@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
    // Save the user's current game state
    savedInstanceState.putInt(STATE_SCORE, mCurrentScore);
    savedInstanceState.putInt(STATE_LEVEL, mCurrentLevel);

    // Always call the superclass so it can save the view hierarchy state
    super.onSaveInstanceState(savedInstanceState);
}