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.distantfuture.castcompanionlibrary.lib.cast.player; import android.app.Activity; import android.app.FragmentManager; import android.graphics.Bitmap; import android.graphics.drawable.BitmapDrawable; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.support.v4.app.FragmentActivity; 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; import com.distantfuture.castcompanionlibrary.lib.R; import com.distantfuture.castcompanionlibrary.lib.cast.VideoCastManager; import com.distantfuture.castcompanionlibrary.lib.cast.exceptions.CastException; import com.distantfuture.castcompanionlibrary.lib.cast.exceptions.NoConnectionException; import com.distantfuture.castcompanionlibrary.lib.cast.exceptions.TransientNetworkDisconnectionException; import com.distantfuture.castcompanionlibrary.lib.utils.CastUtils; import com.google.android.gms.cast.MediaInfo; import com.google.android.gms.cast.MediaStatus; /** * 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 FragmentActivity implements IVideoCastController { private static final String TAG = CastUtils.makeLogTag(VideoCastControllerActivity.class); private VideoCastManager mCastManager; private View mPageView; private ImageView mPlayPause; private TextView mStart; private TextView mEnd; private SeekBar mSeekbar; private TextView mLine1; private TextView mLine2; private ProgressBar mLoading; private float mVolumeIncrement; private View mControllers; private Drawable mPauseDrawable; private Drawable mPlayDrawable; private Drawable mStopDrawable; private OnVideoCastControllerListener mListener; private int mStreamType; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.cast_activity); loadAndSetupViews(); mVolumeIncrement = CastUtils.getFloatFromPreference(this, VideoCastManager.PREFS_KEY_VOLUME_INCREMENT); try { mCastManager = VideoCastManager.getInstance(this); } catch (CastException e) { // logged already } setupActionBar(); Bundle extras = getIntent().getExtras(); if (null == extras) { finish(); return; } FragmentManager fm = getFragmentManager(); VideoCastControllerFragment mediaAuthFragment = (VideoCastControllerFragment) fm.findFragmentByTag("task"); // if fragment is null, it means this is the first time, so create it if (mediaAuthFragment == null) { mediaAuthFragment = VideoCastControllerFragment.newInstance(extras); fm.beginTransaction().add(mediaAuthFragment, "task").commit(); mListener = mediaAuthFragment; setOnVideoCastControllerChangedListener(mListener); } else { mListener = mediaAuthFragment; 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, this, false); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { if (item.getItemId() == android.R.id.home) { finish(); } return true; } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (mVolumeIncrement == Float.MIN_VALUE) { return false; } if (keyCode == KeyEvent.KEYCODE_VOLUME_UP) { onVolumeChange(mVolumeIncrement); } else if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) { onVolumeChange(-(double) mVolumeIncrement); } else { return super.onKeyDown(keyCode, event); } return true; } private void onVolumeChange(double volumeIncrement) { if (mCastManager == null) { return; } try { mCastManager.incrementVolume(volumeIncrement); } catch (Exception e) { CastUtils.LOGE(TAG, "onVolumeChange() Failed to change volume", e); CastUtils.showErrorDialog(VideoCastControllerActivity.this, R.string.failed_setting_volume); } } @Override protected void onResume() { CastUtils.LOGD(TAG, "onResume() was called"); try { mCastManager = VideoCastManager.getInstance(VideoCastControllerActivity.this); } catch (CastException e) { // logged already } super.onResume(); } private void loadAndSetupViews() { 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); mPageView = findViewById(R.id.pageView); mPlayPause = (ImageView) findViewById(R.id.imageView1); 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); mPlayPause.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { try { mListener.onPlayPauseClicked(v); } catch (TransientNetworkDisconnectionException e) { CastUtils.LOGE(TAG, "Failed to toggle playback due to temporary network issue", e); CastUtils.showErrorDialog(VideoCastControllerActivity.this, R.string.failed_no_connection_trans); } catch (NoConnectionException e) { CastUtils.LOGE(TAG, "Failed to toggle playback due to network issues", e); CastUtils.showErrorDialog(VideoCastControllerActivity.this, R.string.failed_no_connection); } catch (Exception e) { CastUtils.LOGE(TAG, "Failed to toggle playback due to other issues", e); CastUtils.showErrorDialog(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) { CastUtils.LOGE(TAG, "Failed to complete seek", e); finish(); } } @Override public void onStartTrackingTouch(SeekBar seekBar) { try { if (null != mListener) { mListener.onStartTrackingTouch(seekBar); } } catch (Exception e) { CastUtils.LOGE(TAG, "Failed to start seek", e); finish(); } } @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { mStart.setText(CastUtils.formatMillis(progress)); try { if (null != mListener) { mListener.onProgressChanged(seekBar, progress, fromUser); } } catch (Exception e) { CastUtils.LOGE(TAG, "Failed to set teh progress result", e); } } }); } private void setupActionBar() { getActionBar().setDisplayHomeAsUpEnabled(true); getActionBar().setDisplayUseLogoEnabled(false); getActionBar().setDisplayShowHomeEnabled(false); getActionBar().setDisplayShowTitleEnabled(true); getActionBar().setTitle(" "); // without a title, the "<" won't show getActionBar().setBackgroundDrawable(getResources().getDrawable(R.drawable.actionbar_bg_gradient_light)); } @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; mEnd.setVisibility(visibility); mSeekbar.setVisibility(visibility); } @Override public void setPlaybackStatus(int 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(CastUtils.formatMillis(position)); mEnd.setText(CastUtils.formatMillis(duration)); } @Override public void setImage(Bitmap bitmap) { if (null != bitmap) { mPageView.setBackground(new BitmapDrawable(getResources(), bitmap)); } } @Override public void setLine1(String text) { mLine1.setText(text); } @Override public void setLine2(String 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(); } }