Java tutorial
/* * Copyright (C) 2014 Google Inc. 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.google.sample.castcompanionlibrary.cast.player; import static com.google.sample.castcompanionlibrary.utils.LogUtils.LOGD; import static com.google.sample.castcompanionlibrary.utils.LogUtils.LOGE; import com.google.android.gms.cast.MediaInfo; import com.google.android.gms.cast.MediaStatus; import com.google.sample.castcompanionlibrary.R; import com.google.sample.castcompanionlibrary.cast.VideoCastManager; import com.google.sample.castcompanionlibrary.cast.exceptions.CastException; import com.google.sample.castcompanionlibrary.cast.exceptions.NoConnectionException; import com.google.sample.castcompanionlibrary.cast.exceptions.TransientNetworkDisconnectionException; import com.google.sample.castcompanionlibrary.cast.tracks.ui.TracksChooserDialog; import com.google.sample.castcompanionlibrary.utils.LogUtils; import com.google.sample.castcompanionlibrary.utils.Utils; import android.app.Activity; import android.graphics.Bitmap; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentTransaction; import android.support.v7.app.ActionBarActivity; import android.support.v7.widget.Toolbar; import android.view.KeyEvent; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.widget.ImageView; import android.widget.ProgressBar; import android.widget.SeekBar; import android.widget.SeekBar.OnSeekBarChangeListener; import android.widget.TextView; /** * This class provides an {@link Activity} that clients can easily add to their applications to * provide an out-of-the-box remote player when a video is casting to a cast device. * {@link VideoCastManager} can manage the lifecycle and presentation of this activity. * <p> * This activity provides a number of controllers for managing the playback of the remote content: * play/pause (or play/stop when a live stream is used) and seekbar (for non-live streams). * <p> * Clients who need to perform a pre-authorization process for playback can register a * {@link IMediaAuthListener} by calling * {@link VideoCastManager#startCastControllerActivity(android.content.Context, * IMediaAuthService)}. * In that case, this activity manages starting the {@link IMediaAuthService} and will register a * listener to handle the result. */ public class VideoCastControllerActivity extends ActionBarActivity implements IVideoCastController { private static final String TAG = LogUtils.makeLogTag(VideoCastControllerActivity.class); private VideoCastManager mCastManager; private ImageView mPlayPause; private TextView mLiveText; private TextView mStart; private TextView mEnd; private SeekBar mSeekbar; private TextView mLine1; private TextView mLine2; private ProgressBar mLoading; private ImageView mClosedCaptionIcon; private float mVolumeIncrement; private View mControllers; private Drawable mPauseDrawable; private Drawable mPlayDrawable; private Drawable mStopDrawable; private VideoCastControllerFragment mVideoCastControllerFragment; private OnVideoCastControllerListener mListener; private int mStreamType; public static final float DEFAULT_VOLUME_INCREMENT = 0.05f; private ImageView mBackgroundImage; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.cast_activity); loadAndSetupViews(); mVolumeIncrement = Utils.getFloatFromPreference(this, VideoCastManager.PREFS_KEY_VOLUME_INCREMENT); if (mVolumeIncrement == Float.MIN_VALUE) { mVolumeIncrement = DEFAULT_VOLUME_INCREMENT; } try { mCastManager = VideoCastManager.getInstance(); } catch (CastException e) { // logged already finish(); } setupActionBar(); Bundle extras = getIntent().getExtras(); if (null == extras) { finish(); return; } FragmentManager fm = getSupportFragmentManager(); mVideoCastControllerFragment = (VideoCastControllerFragment) fm.findFragmentByTag("task"); // if fragment is null, it means this is the first time, so create it if (mVideoCastControllerFragment == null) { mVideoCastControllerFragment = VideoCastControllerFragment.newInstance(extras); fm.beginTransaction().add(mVideoCastControllerFragment, "task").commit(); mListener = mVideoCastControllerFragment; setOnVideoCastControllerChangedListener(mListener); } else { mListener = mVideoCastControllerFragment; mListener.onConfigurationChanged(); } } @Override public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); getMenuInflater().inflate(R.menu.cast_player_menu, menu); mCastManager.addMediaRouterButton(menu, R.id.media_route_menu_item); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { if (item.getItemId() == android.R.id.home) { finish(); } return true; } @Override public boolean dispatchKeyEvent(KeyEvent event) { if (mCastManager.onDispatchVolumeKeyEvent(event, mVolumeIncrement)) { return true; } return super.dispatchKeyEvent(event); } @Override protected void onResume() { LOGD(TAG, "onResume() was called"); try { mCastManager = VideoCastManager.getInstance(); } catch (CastException e) { // logged already } super.onResume(); } private void loadAndSetupViews() { mBackgroundImage = (ImageView) findViewById(R.id.background_image); mPauseDrawable = getResources().getDrawable(R.drawable.ic_av_pause_dark); mPlayDrawable = getResources().getDrawable(R.drawable.ic_av_play_dark); mStopDrawable = getResources().getDrawable(R.drawable.ic_av_stop_dark); mPlayPause = (ImageView) findViewById(R.id.imageView1); mLiveText = (TextView) findViewById(R.id.liveText); mStart = (TextView) findViewById(R.id.startText); mEnd = (TextView) findViewById(R.id.endText); mSeekbar = (SeekBar) findViewById(R.id.seekBar1); mLine1 = (TextView) findViewById(R.id.textView1); mLine2 = (TextView) findViewById(R.id.textView2); mLoading = (ProgressBar) findViewById(R.id.progressBar1); mControllers = findViewById(R.id.controllers); mClosedCaptionIcon = (ImageView) findViewById(R.id.cc); updateClosedCaption(CC_DISABLED); mPlayPause.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { try { mListener.onPlayPauseClicked(v); } catch (TransientNetworkDisconnectionException e) { LOGE(TAG, "Failed to toggle playback due to temporary network issue", e); Utils.showToast(VideoCastControllerActivity.this, R.string.failed_no_connection_trans); } catch (NoConnectionException e) { LOGE(TAG, "Failed to toggle playback due to network issues", e); Utils.showToast(VideoCastControllerActivity.this, R.string.failed_no_connection); } catch (Exception e) { LOGE(TAG, "Failed to toggle playback due to other issues", e); Utils.showToast(VideoCastControllerActivity.this, R.string.failed_perform_action); } } }); mSeekbar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() { @Override public void onStopTrackingTouch(SeekBar seekBar) { try { if (null != mListener) { mListener.onStopTrackingTouch(seekBar); } } catch (Exception e) { LOGE(TAG, "Failed to complete seek", e); finish(); } } @Override public void onStartTrackingTouch(SeekBar seekBar) { try { if (null != mListener) { mListener.onStartTrackingTouch(seekBar); } } catch (Exception e) { LOGE(TAG, "Failed to start seek", e); finish(); } } @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { mStart.setText(Utils.formatMillis(progress)); try { if (null != mListener) { mListener.onProgressChanged(seekBar, progress, fromUser); } } catch (Exception e) { LOGE(TAG, "Failed to set the progress result", e); } } }); mClosedCaptionIcon.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { try { showTracksChooserDialog(); } catch (TransientNetworkDisconnectionException e) { LOGE(TAG, "Failed to get the media", e); } catch (NoConnectionException e) { LOGE(TAG, "Failed to get the media", e); } } }); } private void showTracksChooserDialog() throws TransientNetworkDisconnectionException, NoConnectionException { FragmentTransaction transaction = getSupportFragmentManager().beginTransaction(); Fragment prev = getSupportFragmentManager().findFragmentByTag("dialog"); if (prev != null) { transaction.remove(prev); } transaction.addToBackStack(null); // Create and show the dialog. TracksChooserDialog dialogFragment = TracksChooserDialog .newInstance(mCastManager.getRemoteMediaInformation()); dialogFragment.show(transaction, "dialog"); } private void setupActionBar() { Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); toolbar.setTitle(""); setSupportActionBar(toolbar); getSupportActionBar().setDisplayHomeAsUpEnabled(true); } @Override public void showLoading(boolean visible) { mLoading.setVisibility(visible ? View.VISIBLE : View.INVISIBLE); } // -------------- IVideoCastController implementation ---------------- // @Override public void adjustControllersForLiveStream(boolean isLive) { int visibility = isLive ? View.INVISIBLE : View.VISIBLE; mLiveText.setVisibility(isLive ? View.VISIBLE : View.INVISIBLE); mStart.setVisibility(visibility); mEnd.setVisibility(visibility); mSeekbar.setVisibility(visibility); } @Override public void updateClosedCaption(int status) { switch (status) { case CC_ENABLED: mClosedCaptionIcon.setVisibility(View.VISIBLE); mClosedCaptionIcon.setEnabled(true); break; case CC_DISABLED: mClosedCaptionIcon.setVisibility(View.VISIBLE); mClosedCaptionIcon.setEnabled(false); break; case CC_HIDDEN: mClosedCaptionIcon.setVisibility(View.GONE); break; } } @Override public void setPlaybackStatus(int state) { LOGD(TAG, "setPlaybackStatus(): state = " + state); switch (state) { case MediaStatus.PLAYER_STATE_PLAYING: mLoading.setVisibility(View.INVISIBLE); mPlayPause.setVisibility(View.VISIBLE); if (mStreamType == MediaInfo.STREAM_TYPE_LIVE) { mPlayPause.setImageDrawable(mStopDrawable); } else { mPlayPause.setImageDrawable(mPauseDrawable); } mLine2.setText(getString(R.string.casting_to_device, mCastManager.getDeviceName())); mControllers.setVisibility(View.VISIBLE); break; case MediaStatus.PLAYER_STATE_PAUSED: mControllers.setVisibility(View.VISIBLE); mLoading.setVisibility(View.INVISIBLE); mPlayPause.setVisibility(View.VISIBLE); mPlayPause.setImageDrawable(mPlayDrawable); mLine2.setText(getString(R.string.casting_to_device, mCastManager.getDeviceName())); break; case MediaStatus.PLAYER_STATE_IDLE: mLoading.setVisibility(View.INVISIBLE); mPlayPause.setImageDrawable(mPlayDrawable); mPlayPause.setVisibility(View.VISIBLE); mLine2.setText(getString(R.string.casting_to_device, mCastManager.getDeviceName())); break; case MediaStatus.PLAYER_STATE_BUFFERING: mPlayPause.setVisibility(View.INVISIBLE); mLoading.setVisibility(View.VISIBLE); mLine2.setText(getString(R.string.loading)); break; default: break; } } @Override public void updateSeekbar(int position, int duration) { mSeekbar.setProgress(position); mSeekbar.setMax(duration); mStart.setText(Utils.formatMillis(position)); mEnd.setText(Utils.formatMillis(duration)); } @SuppressWarnings("deprecation") @Override public void setImage(Bitmap bitmap) { if (null != bitmap) { mBackgroundImage.setImageBitmap(bitmap); } } @Override public void setLine1(String text) { if (null == text) { text = ""; } mLine1.setText(text); } @Override public void setLine2(String text) { if (null == text) { text = ""; } mLine2.setText(text); } @Override public void setOnVideoCastControllerChangedListener(OnVideoCastControllerListener listener) { if (null != listener) { this.mListener = listener; } } @Override public void setStreamType(int streamType) { this.mStreamType = streamType; } @Override public void updateControllersStatus(boolean enabled) { mControllers.setVisibility(enabled ? View.VISIBLE : View.INVISIBLE); if (enabled) { adjustControllersForLiveStream(mStreamType == MediaInfo.STREAM_TYPE_LIVE); } } @Override public void closeActivity() { finish(); } }