AbstractTimeoutActivity

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.SystemClock;

/* AbstractTimeOutActivity is subclassed by the activities which need to timeout. */

public class AbstractTimeoutActivity extends AbstractActivity {

    public static final String TIMEOUT_TIME = "timeout time";
    //Disconnect timeout is set in milliseconds
    public static final long DISCONNECT_TIMEOUT = 15 * 60 * 1000;
    private long timeoutTime;
    private Handler timeoutHandler = new Handler();
    private Runnable disconnectCallback = new Runnable() {
        @Override
        public void run() {
            startSignIn();

        }
    };

    private void startSignIn() {
        getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE).edit().putBoolean(IS_LOGGED_OUT, true).commit();
        RSAApplication app = getRSAApplication();
        Intent intent = new Intent(AbstractTimeoutActivity.this, SignInActivity.class);
        intent.putExtra(TIMEOUT_REACHED, true);
        intent.putExtra(TIMEOUT_USER, app.getUsername());
        startActivity(intent);
        finish();
    }

    public void resetDisconnectTimer() {
        timeoutHandler.removeCallbacks(disconnectCallback);
        timeoutTime = System.currentTimeMillis() + DISCONNECT_TIMEOUT;
        timeoutHandler.postAtTime(disconnectCallback, SystemClock.uptimeMillis() + DISCONNECT_TIMEOUT);
    }

    public void stopDisconnectTimer() {
        timeoutHandler.removeCallbacks(disconnectCallback);
    }

    @Override
    public void onUserInteraction() {
        resetDisconnectTimer();
    }

    @Override
    public void onResume() {
        super.onResume();

        resetDisconnectTimer();
        if (getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE).getBoolean(IS_LOGGED_OUT, true)) {
            //startSignIn();
            finish();
        } else if (System.currentTimeMillis() > getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE).getLong(TIMEOUT_TIME, 0))
            startSignIn();

    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE).edit().putLong(TIMEOUT_TIME, System.currentTimeMillis() + DISCONNECT_TIMEOUT).commit();
    }

    @Override
    public void onStop() {
        super.onStop();
        stopDisconnectTimer();
        getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE).edit().putLong(TIMEOUT_TIME, timeoutTime).commit();
    }


}