Android app restarts when opened by clicking app icon

Question

Scenario :

I open my app by clicking icon, do something, navigate through activities, pause the app by clicking home button.

Case 1:

If I

Answer 1

Try to replace you splash Activity code with this code..

public class Splash extends Activity {

protected boolean _active = true;
protected int _splashTime = 2000;

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.splash);

    Thread splashTread = new Thread() {
        @Override
        public void run() {
            try {
                int waited = 0;
                while (_active && (waited < _splashTime)) {
                    sleep(100);
                    if (_active) {
                        waited += 100;
                    }
                }
            } catch (InterruptedException e) {
                e.toString();
            } finally {
                Intent intent = new Intent(getApplicationContext(),
                        MainActivity.class);
                startActivity(intent);
                finish();
            }
        }
    };

    splashTread.start();
}

@Override
protected void onPause() {
    super.onPause();
}

@Override
public void onBackPressed() {
    // TODO Auto-generated method stub
//      super.onBackPressed();
}
}