BaseActivity.xml

BaseActivity.xml

package xxx.xxxx.xxxxx;


import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.MenuItem;
import android.widget.FrameLayout;


public abstract class BaseActivity extends AppCompatActivity {

    private static final String TAG = "BaseActivity";

    private DrawerLayout drawerLayout;
    private ActionBar supportActionBar;
    private ActionBarDrawerToggle actionBarDrawerToggle;
    private Toolbar toolbar;

    @Override
    public void setContentView(int layoutResID) {

        drawerLayout = (DrawerLayout) getLayoutInflater().inflate(R.layout.base_activity, null);
        NavigationView navigationView = drawerLayout.findViewById(R.id.navigation_view);
        FrameLayout activityContainer = drawerLayout.findViewById(R.id.contentFrame);

        getLayoutInflater().inflate(layoutResID, activityContainer, true);

        super.setContentView(drawerLayout);

        setupToolbar();

        setupNavigationDrawer();

        setupDrawerContent(navigationView);

    }

    @Override
    protected void onPostCreate(Bundle savedInstanceState) {

        super.onPostCreate(savedInstanceState);

        actionBarDrawerToggle.syncState();

    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

        Log.d(TAG, "onOptionsItemSelected " + item.toString());

        if (actionBarDrawerToggle.onOptionsItemSelected(item)) {

            return true;

        }

        switch (item.getItemId()) {

            case android.R.id.home: // Open the navigation drawer when the home icon is selected from the toolbar.

                drawerLayout.openDrawer(GravityCompat.START);

                return true;

        }

        return super.onOptionsItemSelected(item);

    }

    private void setupToolbar() {

        toolbar = findViewById(R.id.toolbar);

        setSupportActionBar(toolbar);

        supportActionBar = getSupportActionBar();

        if (supportActionBar != null) {

            supportActionBar.setTitle(R.string.action_load);
            supportActionBar.setHomeAsUpIndicator(R.drawable.ic_menu);
            supportActionBar.setDisplayHomeAsUpEnabled(true);

            Log.w(TAG, "setupToolBar: Toolbar");

        } else {

            Log.w(TAG, "setupToolBar: No Toolbar!");

        }

    }

    private void setupNavigationDrawer() {

        drawerLayout = findViewById(R.id.load_drawer_layout);

        NavigationView navigationView = findViewById(R.id.nav_view);

        actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout, toolbar, R.string.drawer_open, R.string.drawer_close){

        };

        drawerLayout.addDrawerListener(actionBarDrawerToggle);

        if (navigationView != null) {

            setupDrawerContent(navigationView);

        }

    }


    private void setupDrawerContent(NavigationView navigationView) {

        navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {


            @Override
            public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {

                if (getSupportActionBar() != null) {

                    switch (menuItem.getItemId()) {

                        case R.id.navigation_item1:
                            getSupportActionBar().setTitle("1");
                            break;
                        
                        default:
                            break;

                    }

                }

                // Close the navigation drawer when an item is selected.
                drawerLayout.closeDrawers();
                return true;

            }

        });

    }

}