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 com.syncedsynapse.kore2.ui; import android.content.Intent; import android.graphics.Point; import android.os.Bundle; import android.os.Handler; import android.preference.PreferenceManager; import android.support.v4.view.ViewPager; import android.support.v4.widget.DrawerLayout; import android.support.v7.widget.Toolbar; import android.text.TextUtils; import android.view.KeyEvent; import android.view.Menu; import android.view.MenuItem; import android.view.ViewTreeObserver; import android.widget.ImageView; import android.widget.Toast; import com.syncedsynapse.kore2.R; import com.syncedsynapse.kore2.Settings; import com.syncedsynapse.kore2.host.HostConnectionObserver; import com.syncedsynapse.kore2.host.HostManager; import com.syncedsynapse.kore2.jsonrpc.ApiCallback; import com.syncedsynapse.kore2.jsonrpc.method.Application; import com.syncedsynapse.kore2.jsonrpc.method.AudioLibrary; import com.syncedsynapse.kore2.jsonrpc.method.Input; import com.syncedsynapse.kore2.jsonrpc.method.System; import com.syncedsynapse.kore2.jsonrpc.method.VideoLibrary; import com.syncedsynapse.kore2.jsonrpc.type.GlobalType; import com.syncedsynapse.kore2.jsonrpc.type.ListType; import com.syncedsynapse.kore2.jsonrpc.type.PlayerType; import com.syncedsynapse.kore2.service.NotificationService; import com.syncedsynapse.kore2.ui.hosts.AddHostActivity; import com.syncedsynapse.kore2.ui.views.CirclePageIndicator; import com.syncedsynapse.kore2.utils.LogUtils; import com.syncedsynapse.kore2.utils.TabsAdapter; import com.syncedsynapse.kore2.utils.UIUtils; import butterknife.ButterKnife; import butterknife.InjectView; public class RemoteActivity extends BaseActivity implements HostConnectionObserver.PlayerEventsObserver, NowPlayingFragment.NowPlayingListener, SendTextDialogFragment.SendTextDialogListener { private static final String TAG = LogUtils.makeLogTag(RemoteActivity.class); /** * Host manager singleton */ private HostManager hostManager = null; /** * To register for observing host events */ private HostConnectionObserver hostConnectionObserver; private NavigationDrawerFragment navigationDrawerFragment; @InjectView(R.id.background_image) ImageView backgroundImage; @InjectView(R.id.pager_indicator) CirclePageIndicator pageIndicator; @InjectView(R.id.pager) ViewPager viewPager; @InjectView(R.id.default_toolbar) Toolbar toolbar; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Set default values for the preferences PreferenceManager.setDefaultValues(this, R.xml.preferences, false); setContentView(R.layout.activity_remote); ButterKnife.inject(this); hostManager = HostManager.getInstance(this); // Check if we have any hosts setup if (hostManager.getHostInfo() == null) { final Intent intent = new Intent(this, AddHostActivity.class); intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); finish(); } // Set up the drawer. navigationDrawerFragment = (NavigationDrawerFragment) getSupportFragmentManager() .findFragmentById(R.id.navigation_drawer); navigationDrawerFragment.setUp(R.id.navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout)); // Set up pager and fragments TabsAdapter tabsAdapter = new TabsAdapter(this, getSupportFragmentManager()) .addTab(NowPlayingFragment.class, null, R.string.now_playing, 1) .addTab(RemoteFragment.class, null, R.string.remote, 2) .addTab(PlaylistFragment.class, null, R.string.playlist, 3); viewPager.setAdapter(tabsAdapter); pageIndicator.setViewPager(viewPager); pageIndicator.setOnPageChangeListener(defaultOnPageChangeListener); viewPager.setCurrentItem(1); viewPager.setOffscreenPageLimit(2); setupActionBar(); // // Setup system bars and content padding // setupSystemBarsColors(); // // Set the padding of views. // // Only set top and right, to allow bottom to overlap in each fragment // UIUtils.setPaddingForSystemBars(this, viewPager, true, true, false); // UIUtils.setPaddingForSystemBars(this, pageIndicator, true, true, false); } @Override public void onResume() { super.onResume(); hostConnectionObserver = hostManager.getHostConnectionObserver(); hostConnectionObserver.registerPlayerObserver(this, true); // Force a refresh, mainly to update the time elapsed on the fragments hostConnectionObserver.forceRefreshResults(); } @Override public void onPause() { super.onPause(); hostConnectionObserver.unregisterPlayerObserver(this); hostConnectionObserver = null; } /** * Override hardware volume keys and send to Kodi */ @Override public boolean dispatchKeyEvent(KeyEvent event) { // Check whether we should intercept this boolean useVolumeKeys = PreferenceManager.getDefaultSharedPreferences(this).getBoolean( Settings.KEY_PREF_USE_HARDWARE_VOLUME_KEYS, Settings.DEFAULT_PREF_USE_HARDWARE_VOLUME_KEYS); if (useVolumeKeys) { int action = event.getAction(); int keyCode = event.getKeyCode(); switch (keyCode) { case KeyEvent.KEYCODE_VOLUME_UP: if (action == KeyEvent.ACTION_DOWN) { new Application.SetVolume(GlobalType.IncrementDecrement.INCREMENT) .execute(hostManager.getConnection(), null, null); } return true; case KeyEvent.KEYCODE_VOLUME_DOWN: if (action == KeyEvent.ACTION_DOWN) { new Application.SetVolume(GlobalType.IncrementDecrement.DECREMENT) .execute(hostManager.getConnection(), null, null); } return true; } } return super.dispatchKeyEvent(event); } @Override public boolean onCreateOptionsMenu(Menu menu) { if (!navigationDrawerFragment.isDrawerOpen()) { // Only show items in the action bar relevant to this screen if the drawer is not showing. // Otherwise, let the drawer decide what to show in the action bar. getMenuInflater().inflate(R.menu.remote, menu); } return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. switch (item.getItemId()) { case R.id.action_wake_up: UIUtils.sendWolAsync(this, hostManager.getHostInfo()); return true; case R.id.action_quit: Application.Quit actionQuit = new Application.Quit(); // Fire and forget actionQuit.execute(hostManager.getConnection(), null, null); return true; case R.id.action_suspend: System.Suspend actionSuspend = new System.Suspend(); // Fire and forget actionSuspend.execute(hostManager.getConnection(), null, null); return true; case R.id.action_shutdown: System.Shutdown actionShutdown = new System.Shutdown(); // Fire and forget actionShutdown.execute(hostManager.getConnection(), null, null); return true; case R.id.send_text: SendTextDialogFragment dialog = SendTextDialogFragment.newInstance(getString(R.string.send_text)); dialog.show(getSupportFragmentManager(), null); return true; case R.id.toggle_fullscreen: // GUI.SetFullscreen actionSetFullscreen = new GUI.SetFullscreen(); Input.ExecuteAction actionSetFullscreen = new Input.ExecuteAction(Input.ExecuteAction.TOGGLEFULLSCREEN); actionSetFullscreen.execute(hostManager.getConnection(), null, null); return true; case R.id.clean_video_library: VideoLibrary.Clean actionCleanVideo = new VideoLibrary.Clean(); actionCleanVideo.execute(hostManager.getConnection(), null, null); return true; case R.id.clean_audio_library: AudioLibrary.Clean actionCleanAudio = new AudioLibrary.Clean(); actionCleanAudio.execute(hostManager.getConnection(), null, null); return true; case R.id.update_video_library: VideoLibrary.Scan actionScanVideo = new VideoLibrary.Scan(); actionScanVideo.execute(hostManager.getConnection(), null, null); return true; case R.id.update_audio_library: AudioLibrary.Scan actionScanAudio = new AudioLibrary.Scan(); actionScanAudio.execute(hostManager.getConnection(), null, null); return true; default: break; } return super.onOptionsItemSelected(item); } /** * Issue commands to update the Audio and Video libraries, sequentially */ private void updateLibraries() { final Handler callbackHandler = new Handler(); VideoLibrary.Scan actionScanVideo = new VideoLibrary.Scan(); actionScanVideo.execute(hostManager.getConnection(), new ApiCallback<String>() { @Override public void onSucess(String result) { // Great, now update the Audio library AudioLibrary.Scan actionScanAudio = new AudioLibrary.Scan(); actionScanAudio.execute(hostManager.getConnection(), null, callbackHandler); } @Override public void onError(int errorCode, String description) { } }, callbackHandler); } /** * Callbacks from Send text dialog */ public void onSendTextFinished(String text, boolean done) { Input.SendText action = new Input.SendText(text, done); action.execute(hostManager.getConnection(), null, null); } public void onSendTextCancel() { // Nothing to do } private void setupActionBar() { setToolbarTitle(toolbar, 1); setSupportActionBar(toolbar); } private void setToolbarTitle(Toolbar toolbar, int position) { if (toolbar != null) { switch (position) { case 0: toolbar.setTitle(R.string.now_playing); break; case 1: toolbar.setTitle(R.string.remote); break; case 2: toolbar.setTitle(R.string.playlist); break; } } } // Default page change listener, that doesn't scroll images ViewPager.OnPageChangeListener defaultOnPageChangeListener = new ViewPager.OnPageChangeListener() { @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { setToolbarTitle(toolbar, position); } @Override public void onPageScrollStateChanged(int state) { } }; /** * Sets or clear the image background * @param url Image url */ private void setImageViewBackground(String url) { if (url != null) { Point displaySize = new Point(); getWindowManager().getDefaultDisplay().getSize(displaySize); UIUtils.loadImageIntoImageview(hostManager, url, backgroundImage, displaySize.x, displaySize.y / 2); final int pixelsPerPage = displaySize.x / 4; backgroundImage.getViewTreeObserver().addOnPreDrawListener(new ViewTreeObserver.OnPreDrawListener() { @Override public boolean onPreDraw() { backgroundImage.getViewTreeObserver().removeOnPreDrawListener(this); // Position the image int offsetX = (viewPager.getCurrentItem() - 1) * pixelsPerPage; backgroundImage.scrollTo(offsetX, 0); pageIndicator.setOnPageChangeListener(new ViewPager.OnPageChangeListener() { @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { int offsetX = (int) ((position - 1 + positionOffset) * pixelsPerPage); backgroundImage.scrollTo(offsetX, 0); } @Override public void onPageSelected(int position) { setToolbarTitle(toolbar, position); } @Override public void onPageScrollStateChanged(int state) { } }); return true; } }); } else { backgroundImage.setImageDrawable(null); pageIndicator.setOnPageChangeListener(defaultOnPageChangeListener); } } /** * HostConnectionObserver.PlayerEventsObserver interface callbacks */ private String lastImageUrl = null; public void playerOnPlay(PlayerType.GetActivePlayersReturnType getActivePlayerResult, PlayerType.PropertyValue getPropertiesResult, ListType.ItemsAll getItemResult) { String imageUrl = (TextUtils.isEmpty(getItemResult.fanart)) ? getItemResult.thumbnail : getItemResult.fanart; if ((imageUrl != null) && !imageUrl.equals(lastImageUrl)) { setImageViewBackground(imageUrl); } lastImageUrl = imageUrl; // Check whether we should show a notification boolean showNotification = PreferenceManager.getDefaultSharedPreferences(this) .getBoolean(Settings.KEY_PREF_SHOW_NOTIFICATION, Settings.DEFAULT_PREF_SHOW_NOTIFICATION); if (showNotification) { // Let's start the notification service LogUtils.LOGD(TAG, "Starting notification service"); startService(new Intent(this, NotificationService.class)); } } public void playerOnPause(PlayerType.GetActivePlayersReturnType getActivePlayerResult, PlayerType.PropertyValue getPropertiesResult, ListType.ItemsAll getItemResult) { playerOnPlay(getActivePlayerResult, getPropertiesResult, getItemResult); } public void playerOnStop() { if (lastImageUrl != null) { setImageViewBackground(null); } lastImageUrl = null; } public void playerNoResultsYet() { // Do nothing } public void playerOnConnectionError(int errorCode, String description) { playerOnStop(); } public void systemOnQuit() { Toast.makeText(this, R.string.xbmc_quit, Toast.LENGTH_SHORT).show(); playerOnStop(); } public void inputOnInputRequested(String title, String type, String value) { SendTextDialogFragment dialog = SendTextDialogFragment.newInstance(title); dialog.show(getSupportFragmentManager(), null); } public void observerOnStopObserving() { } /** * Now playing fragment listener */ public void SwitchToRemotePanel() { viewPager.setCurrentItem(1); } }