Activity Maps restarts every time I minimize

Question

Well, on android 4.2.1 is working, but on another device with android 4.2.2 it restarts, IE, does not save the state of Activity, this problem only appears with the activitys that use map, in other works quiet. Below is the beginning of the Activity header.

   public class Map_Activity extends FragmentActivity implements
            GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, OnMapReadyCallback
            , com.google.android.gms.location.LocationListener, ActivityCompat.OnRequestPermissionsResultCallback {


        @Override
        protected void onCreate(Bundle bundle) {
            super.onCreate(bundle);
            setContentView(R.layout.activity_map_);

Answer 1

What happens is this, when the application loses focus, it starts a cycle that is part of the Lifecycle of an Android application, when an Activity is no longer visible (nor in the foreground) the method onStop is called this means that from this moment, the system (whose management has some version changes to Android version) may decide to destroy this Activity (calling the method onDestroy()).

Android Life Cicle:

When the system destroys your Activity, it stores the state of the Activity in the Bundles, for that all Views need to have Ids to be identified.

However, not always Android hits, and restores everything as you want, so if it is important that Activity keeps certain behavior, the ideal is that you do not depend on Android to do this and ensure that in any version, your view will maintain the behavior.

So you need to overwrite the method onSaveInstanceState and onRestoreInstanceState, and process the data saved in onCreate

Example:

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);
}


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState); // Always call the superclass first

    // Check whether we're recreating a previously destroyed instance
    if (savedInstanceState != null) {
        // Restore value of members from saved state
        mCurrentScore = savedInstanceState.getInt(STATE_SCORE);
        mCurrentLevel = savedInstanceState.getInt(STATE_LEVEL);
    } else {
        // Probably initialize members with default values for a new instance
    }
    ...
}

public void onRestoreInstanceState(Bundle savedInstanceState) {
    // Always call the superclass so it can restore the view hierarchy
    super.onRestoreInstanceState(savedInstanceState);

    // Restore state members from saved instance
    mCurrentScore = savedInstanceState.getInt(STATE_SCORE);
    mCurrentLevel = savedInstanceState.getInt(STATE_LEVEL);
}

Source Android Docs.