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Apache License
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package com.andrewq.planets.tv; // w w w.jav a 2s. c om import android.app.Activity; import android.content.Intent; import android.media.MediaPlayer; import android.media.MediaPlayer.OnCompletionListener; import android.media.MediaPlayer.OnErrorListener; import android.media.MediaPlayer.OnPreparedListener; import android.os.Bundle; import android.os.Handler; import android.util.DisplayMetrics; import android.util.Log; import android.view.KeyEvent; import android.view.MenuItem; import android.view.View; import android.widget.ImageView; import android.widget.ProgressBar; import android.widget.RelativeLayout.LayoutParams; import android.widget.SeekBar; import android.widget.TextView; import android.widget.VideoView; import java.util.Timer; import java.util.TimerTask; public class PlayerActivity extends Activity { private static final String TAG = "PlayerActivity"; private static final int HIDE_CONTROLLER_TIME = 5000; private static final int SEEKBAR_DELAY_TIME = 100; private static final int SEEKBAR_INTERVAL_TIME = 1000; private static final int MIN_SCRUB_TIME = 3000; private static final int SCRUB_SEGMENT_DIVISOR = 30; private static final double MEDIA_BAR_TOP_MARGIN = 0.8; private static final double MEDIA_BAR_RIGHT_MARGIN = 0.2; private static final double MEDIA_BAR_BOTTOM_MARGIN = 0.0; private static final double MEDIA_BAR_LEFT_MARGIN = 0.2; private static final double MEDIA_BAR_HEIGHT = 0.1; private static final double MEDIA_BAR_WIDTH = 0.9; private final Handler mHandler = new Handler(); private VideoView mVideoView; private TextView mStartText; private TextView mEndText; private SeekBar mSeekbar; private ImageView mPlayPause; private ProgressBar mLoading; private View mControllers; private View mContainer; private Timer mSeekbarTimer; private Timer mControllersTimer; private PlaybackState mPlaybackState; private Planet mSelectedPlanet; private boolean mShouldStartPlayback; private boolean mControlersVisible; View.OnClickListener mPlayPauseHandler = new View.OnClickListener() { public void onClick(View v) { Log.d(TAG, "clicked play pause button"); if (!mControlersVisible) { updateControlersVisibility(true); } if (mPlaybackState == PlaybackState.PAUSED) { mPlaybackState = PlaybackState.PLAYING; updatePlayButton(mPlaybackState); mVideoView.start(); startControllersTimer(); } else { mVideoView.pause(); mPlaybackState = PlaybackState.PAUSED; updatePlayButton(PlaybackState.PAUSED); stopControllersTimer(); } } }; private int mDuration; private DisplayMetrics mMetrics; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_player); mMetrics = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(mMetrics); loadViews(); setupController(); setupControlsCallbacks(); startVideoPlayer(); updateMetadata(true); } private void startVideoPlayer() { Bundle b = getIntent().getExtras(); mSelectedPlanet = (Planet) getIntent().getSerializableExtra(getResources().getString(R.string.movie)); if (null != b) { mShouldStartPlayback = b.getBoolean(getResources().getString(R.string.should_start)); int startPosition = b.getInt(getResources().getString(R.string.start_position), 0); if (mShouldStartPlayback) { mPlaybackState = PlaybackState.PLAYING; updatePlayButton(mPlaybackState); if (startPosition > 0) { mVideoView.seekTo(startPosition); } mVideoView.start(); mPlayPause.requestFocus(); startControllersTimer(); } else { updatePlaybackLocation(); mPlaybackState = PlaybackState.PAUSED; updatePlayButton(mPlaybackState); } } } private void updatePlaybackLocation() { if (mPlaybackState == PlaybackState.PLAYING || mPlaybackState == PlaybackState.BUFFERING) { startControllersTimer(); } else { stopControllersTimer(); } } private void play(int position) { startControllersTimer(); mVideoView.seekTo(position); mVideoView.start(); restartSeekBarTimer(); } private void stopSeekBarTimer() { Log.d(TAG, "Stopped TrickPlay Timer"); if (null != mSeekbarTimer) { mSeekbarTimer.cancel(); } } private void restartSeekBarTimer() { stopSeekBarTimer(); mSeekbarTimer = new Timer(); mSeekbarTimer.scheduleAtFixedRate(new UpdateSeekbarTask(), SEEKBAR_DELAY_TIME, SEEKBAR_INTERVAL_TIME); } private void stopControllersTimer() { if (null != mControllersTimer) { mControllersTimer.cancel(); } } private void startControllersTimer() { if (null != mControllersTimer) { mControllersTimer.cancel(); } mControllersTimer = new Timer(); mControllersTimer.schedule(new HideControllersTask(), HIDE_CONTROLLER_TIME); } private void updateControlersVisibility(boolean show) { if (show) { mControllers.setVisibility(View.VISIBLE); } else { mControllers.setVisibility(View.INVISIBLE); } } @Override protected void onPause() { super.onPause(); Log.d(TAG, "onPause() was called"); if (null != mSeekbarTimer) { mSeekbarTimer.cancel(); mSeekbarTimer = null; } if (null != mControllersTimer) { mControllersTimer.cancel(); } mVideoView.pause(); mPlaybackState = PlaybackState.PAUSED; updatePlayButton(PlaybackState.PAUSED); } @Override protected void onStop() { Log.d(TAG, "onStop() was called"); super.onStop(); } @Override protected void onDestroy() { Log.d(TAG, "onDestroy() is called"); stopControllersTimer(); stopSeekBarTimer(); super.onDestroy(); } @Override protected void onStart() { Log.d(TAG, "onStart was called"); super.onStart(); } @Override protected void onResume() { Log.d(TAG, "onResume() was called"); super.onResume(); } private void setupController() { int w = (int) (mMetrics.widthPixels * MEDIA_BAR_WIDTH); int h = (int) (mMetrics.heightPixels * MEDIA_BAR_HEIGHT); int marginLeft = (int) (mMetrics.widthPixels * MEDIA_BAR_LEFT_MARGIN); int marginTop = (int) (mMetrics.heightPixels * MEDIA_BAR_TOP_MARGIN); int marginRight = (int) (mMetrics.widthPixels * MEDIA_BAR_RIGHT_MARGIN); int marginBottom = (int) (mMetrics.heightPixels * MEDIA_BAR_BOTTOM_MARGIN); LayoutParams lp = new LayoutParams(w, h); lp.setMargins(marginLeft, marginTop, marginRight, marginBottom); mControllers.setLayoutParams(lp); mStartText.setText(getResources().getString(R.string.init_text)); mEndText.setText(getResources().getString(R.string.init_text)); } private void setupControlsCallbacks() { mVideoView.setOnErrorListener(new OnErrorListener() { @Override public boolean onError(MediaPlayer mp, int what, int extra) { String msg = ""; if (extra == MediaPlayer.MEDIA_ERROR_TIMED_OUT) { msg = getString(R.string.video_error_media_load_timeout); } else if (what == MediaPlayer.MEDIA_ERROR_SERVER_DIED) { msg = getString(R.string.video_error_server_unaccessible); } else { msg = getString(R.string.video_error_unknown_error); } mVideoView.stopPlayback(); mPlaybackState = PlaybackState.IDLE; return false; } }); mVideoView.setOnPreparedListener(new OnPreparedListener() { @Override public void onPrepared(MediaPlayer mp) { Log.d(TAG, "onPrepared is reached"); mDuration = mp.getDuration(); mEndText.setText(Utils.formatMillis(mDuration)); mSeekbar.setMax(mDuration); restartSeekBarTimer(); } }); mVideoView.setOnCompletionListener(new OnCompletionListener() { @Override public void onCompletion(MediaPlayer mp) { stopSeekBarTimer(); mPlaybackState = PlaybackState.IDLE; updatePlayButton(PlaybackState.IDLE); mControllersTimer = new Timer(); mControllersTimer.schedule(new BackToDetailTask(), HIDE_CONTROLLER_TIME); } }); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { int currentPos = 0; int delta = (int) (mDuration / SCRUB_SEGMENT_DIVISOR); if (delta < MIN_SCRUB_TIME) delta = MIN_SCRUB_TIME; Log.v("keycode", "duration " + mDuration + " delta:" + delta); if (!mControlersVisible) { updateControlersVisibility(true); } switch (keyCode) { case KeyEvent.KEYCODE_DPAD_CENTER: return true; case KeyEvent.KEYCODE_DPAD_DOWN: return true; case KeyEvent.KEYCODE_DPAD_LEFT: currentPos = mVideoView.getCurrentPosition(); currentPos -= delta; if (currentPos > 0) play(currentPos); return true; case KeyEvent.KEYCODE_DPAD_RIGHT: currentPos = mVideoView.getCurrentPosition(); currentPos += delta; if (currentPos < mDuration) play(currentPos); return true; case KeyEvent.KEYCODE_DPAD_UP: return true; } return super.onKeyDown(keyCode, event); } private void updateSeekbar(int position, int duration) { mSeekbar.setProgress(position); mSeekbar.setMax(duration); mStartText.setText(Utils.formatMillis(position)); mEndText.setText(Utils.formatMillis(duration)); } private void updatePlayButton(PlaybackState state) { switch (state) { case PLAYING: mLoading.setVisibility(View.INVISIBLE); mPlayPause.setVisibility(View.VISIBLE); mPlayPause.setImageDrawable( getResources().getDrawable(R.drawable.ic_pause_playcontrol_normal)); break; case PAUSED: case IDLE: mLoading.setVisibility(View.INVISIBLE); mPlayPause.setVisibility(View.VISIBLE); mPlayPause.setImageDrawable( getResources().getDrawable(R.drawable.ic_play_playcontrol_normal)); break; case BUFFERING: mPlayPause.setVisibility(View.INVISIBLE); mLoading.setVisibility(View.VISIBLE); break; default: break; } } /* * @Override public boolean onKeyDown(int keyCode, KeyEvent event) { return * super.onKeyDown(keyCode, event); } */ private void updateMetadata(boolean visible) { mVideoView.invalidate(); } @Override public boolean onOptionsItemSelected(MenuItem item) { return true; } private void loadViews() { mVideoView = (VideoView) findViewById(R.id.videoView); mStartText = (TextView) findViewById(R.id.startText); mEndText = (TextView) findViewById(R.id.endText); mSeekbar = (SeekBar) findViewById(R.id.seekBar); mPlayPause = (ImageView) findViewById(R.id.playpause); mLoading = (ProgressBar) findViewById(R.id.progressBar); mControllers = findViewById(R.id.controllers); mContainer = findViewById(R.id.container); mVideoView.setOnClickListener(mPlayPauseHandler); } /* * List of various states that we can be in */ public static enum PlaybackState { PLAYING, PAUSED, BUFFERING, IDLE; } private class HideControllersTask extends TimerTask { @Override public void run() { mHandler.post(new Runnable() { @Override public void run() { updateControlersVisibility(false); mControlersVisible = false; } }); } } private class UpdateSeekbarTask extends TimerTask { @Override public void run() { mHandler.post(new Runnable() { @Override public void run() { int currentPos = 0; currentPos = mVideoView.getCurrentPosition(); updateSeekbar(currentPos, mDuration); } }); } } private class BackToDetailTask extends TimerTask { @Override public void run() { mHandler.post(new Runnable() { @Override public void run() { Intent intent = new Intent(PlayerActivity.this, DetailsActivity.class); intent.putExtra(getResources().getString(R.string.movie), mSelectedPlanet); startActivity(intent); } }); } } }