Java tutorial
/* * Copyright 2016, The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.sukenda.todoapp.module.task.statistics; import android.content.Intent; import android.os.Build; import android.os.Bundle; 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.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.view.MenuItem; import com.sukenda.todoapp.Injection; import com.sukenda.todoapp.R; import com.sukenda.todoapp.module.task.tasks.TasksActivity; import com.sukenda.todoapp.util.ActivityUtils; /** * Show statistics for tasks. */ public class StatisticsActivity extends AppCompatActivity { private DrawerLayout mDrawerLayout; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.statistics_act); // Set up the toolbar. Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); ActionBar actionBar = getSupportActionBar(); assert actionBar != null; actionBar.setTitle(R.string.statistics_title); actionBar.setHomeAsUpIndicator(R.drawable.ic_menu); actionBar.setDisplayHomeAsUpEnabled(true); // Set up the navigation drawer. mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); assert mDrawerLayout != null; mDrawerLayout.setStatusBarBackground(R.color.colorPrimaryDark); NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view); if (navigationView != null) { setupDrawerContent(navigationView); } StatisticsFragment statisticsFragment = (StatisticsFragment) getSupportFragmentManager() .findFragmentById(R.id.contentFrame); if (statisticsFragment == null) { statisticsFragment = StatisticsFragment.newInstance(); ActivityUtils.addFragmentToActivity(getSupportFragmentManager(), statisticsFragment, R.id.contentFrame); } new StatisticsPresenter(Injection.provideTasksRepository(getApplicationContext()), statisticsFragment); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case android.R.id.home: // Open the navigation drawer when the home icon is selected from the toolbar. mDrawerLayout.openDrawer(GravityCompat.START); return true; } return super.onOptionsItemSelected(item); } private void setupDrawerContent(NavigationView navigationView) { navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() { @Override public boolean onNavigationItemSelected(MenuItem menuItem) { switch (menuItem.getItemId()) { case R.id.list_navigation_menu_item: Intent intent = new Intent(StatisticsActivity.this, TasksActivity.class); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); } startActivity(intent); break; case R.id.statistics_navigation_menu_item: // Do nothing, we're already on that screen break; default: break; } // Close the navigation drawer when an item is selected. menuItem.setChecked(true); mDrawerLayout.closeDrawers(); return true; } }); } }