MainActivity.java

package mil.nga.giat.asam;

import java.io.IOException;

import mil.nga.giat.asam.db.AsamDbHelper;
import mil.nga.giat.asam.map.AllAsamsMapTabletActivity;
import mil.nga.giat.asam.util.AsamConstants;
import mil.nga.giat.asam.util.AsamLog;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.app.FragmentActivity;

import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;


public class MainActivity extends FragmentActivity {
    
    private GoogleMap mMapUI;
    private boolean mApplicationLaunching;
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        mApplicationLaunching = false;
        setUpMapIfNeeded();
    }
    
    @Override
    protected void onResume() {
        super.onResume();
        setUpMapIfNeeded();
    }
    
    private void setUpMapIfNeeded() {
        if (mMapUI == null) {
            SupportMapFragment mapFragment = (SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.main_map_view_ui);
            mMapUI = mapFragment.getMap();
            if (mMapUI != null) {
                getSupportFragmentManager().beginTransaction().hide(mapFragment).commit();
                launchApplication();
            }
        }
    }
    
    private void launchApplication() {
        
        if (mApplicationLaunching) {
            return;
        }
        mApplicationLaunching = true;
        
        // Make a pre-initialized database if necessary.
        AsamDbHelper dbHelper = new AsamDbHelper(this);
        if (!dbHelper.doesSeededAsamDbExist()) {
            try {
                dbHelper.initializeSeededAsamDb();
            }
            catch (IOException caught) {
                AsamLog.e("Error creating DB", caught);
            }
        }
        
        // Launch to the correct screen.
        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
        boolean hideDisclaimer = preferences.getBoolean(AsamConstants.HIDE_DISCLAIMER_KEY, false);
        Intent intent = null;
        if (isTablet()) {
            intent = new Intent(this, AllAsamsMapTabletActivity.class);
            intent.putExtra(AsamConstants.TABLET_IS_LAUNCHING_KEY, true);
        }
        else if (!hideDisclaimer) {
            intent = new Intent(this, DisclaimerActivity.class);
        }
        else {
            intent = new Intent(this, LaunchScreenActivity.class);
        }
        startActivity(intent);
        finish();
    }

    private boolean isTablet() {
        return getResources().getBoolean(R.bool.is_tablet);
    }
}