in todoapp/app/src/main/java/com/example/android/architecture/blueprints/todoapp/tasks/TasksActivity.java [37:64]
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tasks_act);
// Set up the toolbar.
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ActionBar ab = getSupportActionBar();
ab.setHomeAsUpIndicator(R.drawable.ic_menu);
ab.setDisplayHomeAsUpEnabled(true);
// Set up the navigation drawer.
mDrawerLayout = findViewById(R.id.drawer_layout);
mDrawerLayout.setStatusBarBackground(R.color.colorPrimaryDark);
NavigationView navigationView = findViewById(R.id.nav_view);
if (navigationView != null) {
setupDrawerContent(navigationView);
}
TasksFragment tasksFragment =
(TasksFragment) getSupportFragmentManager().findFragmentById(R.id.contentFrame);
if (tasksFragment == null) {
// Create the fragment
tasksFragment = TasksFragment.newInstance();
ActivityUtils.addFragmentToActivity(
getSupportFragmentManager(), tasksFragment, R.id.contentFrame);
}
}