Java tutorial
/* * Copyright 2015 Synced Synapse. All rights reserved. * * 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 org.xbmc.kore.ui; import android.annotation.TargetApi; import android.content.Intent; import android.os.Bundle; import android.support.v4.app.FragmentTransaction; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBar; import android.support.v7.widget.Toolbar; import android.transition.TransitionInflater; import android.view.Menu; import android.view.MenuItem; import android.view.Window; import org.xbmc.kore.R; import org.xbmc.kore.utils.LogUtils; import org.xbmc.kore.utils.Utils; /** * Controls the presentation of Live TV/Radio and recordings information (list, details) * All the information is presented by specific fragments */ public class PVRActivity extends BaseActivity implements PVRChannelsListFragment.OnPVRChannelSelectedListener { private static final String TAG = LogUtils.makeLogTag(PVRActivity.class); public static final String CHANNELID = "channel_id"; public static final String CHANNELTITLE = "channel_title"; public static final String CHANNELGROUPID = "channelgroupid"; public static final String CHANNELGROUPTITLE = "channelgrouptitle"; private static final String LISTFRAGMENTTAG = "listfragmenttag"; private int selectedChannelId = -1; private String selectedChannelTitle = null; private int selectedChannelGroupId = -1; private String selectedChannelGroupTitle = null; private NavigationDrawerFragment navigationDrawerFragment; @TargetApi(21) @Override protected void onCreate(Bundle savedInstanceState) { // Request transitions on lollipop if (Utils.isLollipopOrLater()) { getWindow().requestFeature(Window.FEATURE_CONTENT_TRANSITIONS); } super.onCreate(savedInstanceState); setContentView(R.layout.activity_generic_media); // Set up the drawer. navigationDrawerFragment = (NavigationDrawerFragment) getSupportFragmentManager() .findFragmentById(R.id.navigation_drawer); navigationDrawerFragment.setUp(R.id.navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout)); if (savedInstanceState == null) { PVRListFragment pvrListFragment = new PVRListFragment(); // Setup animations if (Utils.isLollipopOrLater()) { pvrListFragment.setExitTransition(null); pvrListFragment.setReenterTransition( TransitionInflater.from(this).inflateTransition(android.R.transition.fade)); } getSupportFragmentManager().beginTransaction() .add(R.id.fragment_container, pvrListFragment, LISTFRAGMENTTAG).commit(); } else { selectedChannelId = savedInstanceState.getInt(CHANNELID, -1); selectedChannelTitle = savedInstanceState.getString(CHANNELTITLE, null); selectedChannelGroupId = savedInstanceState.getInt(CHANNELGROUPID, -1); selectedChannelGroupTitle = savedInstanceState.getString(CHANNELGROUPTITLE, null); } setupActionBar(selectedChannelGroupTitle, selectedChannelTitle); } @Override public void onResume() { super.onResume(); } @Override public void onPause() { super.onPause(); } @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); outState.putInt(CHANNELID, selectedChannelId); outState.putString(CHANNELTITLE, selectedChannelTitle); outState.putInt(CHANNELGROUPID, selectedChannelGroupId); outState.putString(CHANNELGROUPTITLE, selectedChannelGroupTitle); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.media_info, menu); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.action_show_remote: // Starts remote Intent launchIntent = new Intent(this, RemoteActivity.class).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP); startActivity(launchIntent); return true; case android.R.id.home: // If showing detail view, back up to list if (selectedChannelId != -1) { selectedChannelId = -1; selectedChannelTitle = null; setupActionBar(selectedChannelGroupTitle, null); getSupportFragmentManager().popBackStack(); return true; } else if (selectedChannelGroupId != -1) { selectedChannelGroupId = -1; selectedChannelGroupTitle = null; setupActionBar(null, null); PVRListFragment fragment = (PVRListFragment) getSupportFragmentManager() .findFragmentByTag(LISTFRAGMENTTAG); if (fragment != null) { fragment.onBackPressed(); } return true; } break; default: break; } return super.onOptionsItemSelected(item); } @Override public void onBackPressed() { boolean handled = false; // If we are showing details in portrait, clear selected and show action bar if (selectedChannelId != -1) { selectedChannelId = -1; selectedChannelTitle = null; setupActionBar(selectedChannelGroupTitle, null); } else { if (selectedChannelGroupId != -1) { selectedChannelGroupId = -1; selectedChannelGroupTitle = null; setupActionBar(null, null); } PVRListFragment fragment = (PVRListFragment) getSupportFragmentManager() .findFragmentByTag(LISTFRAGMENTTAG); if (fragment != null) { handled = fragment.onBackPressed(); } } if (!handled) super.onBackPressed(); } private boolean drawerIndicatorIsArrow = false; private void setupActionBar(String channelGroupTitle, String channelTitle) { Toolbar toolbar = (Toolbar) findViewById(R.id.default_toolbar); setSupportActionBar(toolbar); ActionBar actionBar = getSupportActionBar(); if (actionBar == null) return; actionBar.setDisplayHomeAsUpEnabled(true); if ((channelTitle != null) || (channelGroupTitle != null)) { if (!drawerIndicatorIsArrow) { navigationDrawerFragment.animateDrawerToggle(true); drawerIndicatorIsArrow = true; } actionBar.setTitle(channelTitle == null ? channelGroupTitle : channelTitle); } else { if (drawerIndicatorIsArrow) { navigationDrawerFragment.animateDrawerToggle(false); drawerIndicatorIsArrow = false; } actionBar.setTitle(R.string.pvr); } } /** * Callback from list fragment when the channel guide should be displayed. * Setup action bar and repolace list fragment * @param channelId Channel selected * @param channelTitle Title */ @TargetApi(21) public void onChannelGuideSelected(int channelId, String channelTitle) { selectedChannelId = channelId; selectedChannelTitle = channelTitle; // Replace list fragment PVRChannelEPGListFragment pvrEPGFragment = PVRChannelEPGListFragment.newInstance(channelId); FragmentTransaction fragTrans = getSupportFragmentManager().beginTransaction(); // Set up transitions if (Utils.isLollipopOrLater()) { pvrEPGFragment.setEnterTransition( TransitionInflater.from(this).inflateTransition(R.transition.media_details)); pvrEPGFragment.setReturnTransition(null); } else { fragTrans.setCustomAnimations(R.anim.fragment_details_enter, 0, R.anim.fragment_list_popenter, 0); } fragTrans.replace(R.id.fragment_container, pvrEPGFragment).addToBackStack(null).commit(); setupActionBar(selectedChannelGroupTitle, selectedChannelTitle); } /** * Callback from list fragment when a channel group is selected * Just setup action bar * @param channelGroupId Channel group selected * @param channelGroupTitle Title */ public void onChannelGroupSelected(int channelGroupId, String channelGroupTitle) { selectedChannelGroupId = channelGroupId; selectedChannelGroupTitle = channelGroupTitle; setupActionBar(selectedChannelGroupTitle, selectedChannelTitle); } }