edu.Groove9.TunesMaster.playlist.PlaylistActivity.java Source code

Introduction

Here is the source code for edu.Groove9.TunesMaster.playlist.PlaylistActivity.java

Source

/*
 * 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 edu.Groove9.TunesMaster.playlist;

import android.Manifest;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.support.annotation.VisibleForTesting;
import android.support.design.widget.NavigationView;
import android.support.test.espresso.IdlingResource;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
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 edu.Groove9.TunesMaster.Injection;
import edu.Groove9.TunesMaster.R;
import edu.Groove9.TunesMaster.songplayer.SongPlayerActivity;
import edu.Groove9.TunesMaster.statistics.StatisticsActivity;
import edu.Groove9.TunesMaster.util.ActivityUtils;
import edu.Groove9.TunesMaster.util.EspressoIdlingResource;

public class PlaylistActivity extends AppCompatActivity {

    private static final String CURRENT_FILTERING_KEY = "CURRENT_FILTERING_KEY";
    private final int REQUEST_WRITE_STORAGE = 42;

    private DrawerLayout mDrawerLayout;

    private PlaylistPresenter mPlaylistPresenter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.playlist_act);

        // Set up the toolbar.
        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 = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerLayout.setStatusBarBackground(R.color.colorPrimaryDark);
        NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
        if (navigationView != null) {
            setupDrawerContent(navigationView);
        }

        PlaylistFragment playlistFragment = (PlaylistFragment) getSupportFragmentManager()
                .findFragmentById(R.id.contentFrame);
        if (playlistFragment == null) {
            // Create the fragment
            playlistFragment = PlaylistFragment.newInstance();
            ActivityUtils.addFragmentToActivity(getSupportFragmentManager(), playlistFragment, R.id.contentFrame);
        }

        // Create the presenter
        mPlaylistPresenter = new PlaylistPresenter(Injection.provideUseCaseHandler(), playlistFragment,
                Injection.provideGetTasks(getApplicationContext()));

        // Load previously saved state, if available.
        if (savedInstanceState != null) {
            PlaylistFilterType currentFiltering = (PlaylistFilterType) savedInstanceState
                    .getSerializable(CURRENT_FILTERING_KEY);
            mPlaylistPresenter.setFiltering(currentFiltering);
        }

        askForPermission();
    }

    private void askForPermission() {
        boolean hasPermission = (ContextCompat.checkSelfPermission(this,
                Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED);
        if (!hasPermission) {
            ActivityCompat.requestPermissions(this, new String[] { Manifest.permission.WRITE_EXTERNAL_STORAGE },
                    REQUEST_WRITE_STORAGE);
        }
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        outState.putSerializable(CURRENT_FILTERING_KEY, mPlaylistPresenter.getFiltering());

        super.onSaveInstanceState(outState);
    }

    @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:
                    // Do nothing, we're already on that screen
                    break;
                case R.id.statistics_navigation_menu_item:
                    Intent statisticsIntent = new Intent(PlaylistActivity.this, StatisticsActivity.class);
                    statisticsIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
                    startActivity(statisticsIntent);
                    break;
                default:
                    break;
                }
                // Close the navigation drawer when an item is selected.
                menuItem.setChecked(true);
                mDrawerLayout.closeDrawers();
                return true;
            }
        });
    }

    @VisibleForTesting
    public IdlingResource getCountingIdlingResource() {
        return EspressoIdlingResource.getIdlingResource();
    }
}