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OK - Androidスタジオ3.0とYouTube APIバージョン3をプロジェクトで使用しています。 ライブラリ/ jarファイルを（このリンクを介して）プロジェクトに追加しました。 プロジェクトがコンパイルされます。YouTubeプレーヤーアクティビティでエラーが発生しました
私はこのアプリを実行して動画を選択すると、「YouTubeプレーヤーの初期化中にエラーが発生しました」というメッセージが表示されます。これは端末とエミュレータで発生します。
私はlogcatを見て、私は見つけることすべてがIDE自体にこのエラーメッセージが表示され、IDEを見て：
そして私もIDEの上部にこれを見ます：それは私が間違って行っているとどのように私は、彼らが選択されている場合、私はYouTubeの動画を再生することができますので、それを修正することができ
は何ですか？
私はここに私のYouTubeのアクティビティファイルのコードを追加しました：
import android.media.MediaPlayer;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
import android.widget.VideoView;
import com.google.android.youtube.player.YouTubeBaseActivity;
import com.google.android.youtube.player.YouTubeInitializationResult;
import com.google.android.youtube.player.YouTubePlayer;
import com.google.android.youtube.player.YouTubePlayerView;
public class YouTubePlaybackOverlayActivity extends YouTubeBaseActivity implements YouTubePlayer.OnInitializedListener {
private static String ytUrl;
public String TAG = YouTubePlaybackOverlayActivity.class.getSimpleName();
public VideoView mVideoView;
public LeanbackPlaybackState mPlaybackState = LeanbackPlaybackState.IDLE;
public static final String API_KEY = "XXXXXXXXXXXXXXXXXXXX";
private int mPosition = 0;
private long mStartTimeMillis;
private long mDuration = -1;
/**
* ATTENTION: This was auto-generated to implement the App Indexing API.
* See https://g.co/AppIndexing/AndroidStudio for more information.
*/
//private GoogleApiClient client;
@Override
public void onStart() {
super.onStart();
// // ATTENTION: This was auto-generated to implement the App Indexing API.
// // See https://g.co/AppIndexing/AndroidStudio for more information.
// client.connect();
// Action viewAction = Action.newAction(
// Action.TYPE_VIEW, // TODO: choose an action type.
// "PlaybackOverlay Page", // TODO: Define a title for the content shown.
// // TODO: If you have web page content that matches this app activity's content,
// // make sure this auto-generated web page URL is correct.
// // Otherwise, set the URL to null.
// Uri.parse("http://host/path"),
// // TODO: Make sure this auto-generated app deep link URI is correct.
// Uri.parse("android-app://software.blackstone.sunnahstreamtv/http/host/path")
// );
// AppIndex.AppIndexApi.start(client, viewAction);
}
@Override
public void onStop() {
super.onStop();
// // ATTENTION: This was auto-generated to implement the App Indexing API.
// // See https://g.co/AppIndexing/AndroidStudio for more information.
// Action viewAction = Action.newAction(
// Action.TYPE_VIEW, // TODO: choose an action type.
// "PlaybackOverlay Page", // TODO: Define a title for the content shown.
// // TODO: If you have web page content that matches this app activity's content,
// // make sure this auto-generated web page URL is correct.
// // Otherwise, set the URL to null.
// Uri.parse("http://host/path"),
// // TODO: Make sure this auto-generated app deep link URI is correct.
// Uri.parse("android-app://software.blackstone.sunnahstreamtv/http/host/path")
// );
// AppIndex.AppIndexApi.end(client, viewAction);
// client.disconnect();
}
/*
* List of various states that we can be in
*/
public enum LeanbackPlaybackState {
PLAYING, PAUSED, IDLE
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
/** attaching layout xml **/
//setContentView(R.layout.nabawi_video);
//setContentView(R.layout.activity_playback_overlay);
setContentView(R.layout.video_playback);
/** Initializing YouTube player view **/
YouTubePlayerView youTubePlayerView = (YouTubePlayerView) findViewById(R.id.youtube_player);
youTubePlayerView.initialize(API_KEY, this);
// ATTENTION: This was auto-generated to implement the App Indexing API.
// See https://g.co/AppIndexing/AndroidStudio for more information.
//client = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build();
}
// @Override
// protected void onCreate(Bundle savedInstanceState) {
// super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_playback_overlay);
//
// loadViews();
// }
@Override
public void onDestroy() {
stopPlayback();
super.onDestroy();
}
private void loadViews() {
mVideoView = (VideoView) findViewById(R.id.youtube_player);
mVideoView.setFocusable(false);
mVideoView.setFocusableInTouchMode(false);
Movie movie = (Movie) getIntent().getSerializableExtra(DetailsActivity.MOVIE);
//setVideoPath(movie.getVideoUrl());
setVideoPath(movie.getyTubeID());
ytUrl = movie.getyTubeID();
}
public void setVideoPath(String videoUrl) {
setPosition(0);
mVideoView.setVideoPath(videoUrl);
mStartTimeMillis = 0;
mDuration = Utils.getDuration(videoUrl);
}
private void stopPlayback() {
if (mVideoView != null) {
mVideoView.stopPlayback();
}
}
private void setPosition(int position) {
if (position > mDuration) {
mPosition = (int) mDuration;
} else if (position < 0) {
mPosition = 0;
mStartTimeMillis = System.currentTimeMillis();
} else {
mPosition = position;
}
mStartTimeMillis = System.currentTimeMillis();
Log.d(TAG, "position set to " + mPosition);
}
public int getPosition() {
return mPosition;
}
public void setPlaybackState(LeanbackPlaybackState playbackState) {
this.mPlaybackState = playbackState;
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_playback_overlay, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
public void playPause(boolean doPlay) {
if (mPlaybackState == LeanbackPlaybackState.IDLE) {
/* Callbacks for mVideoView */
setupCallbacks();
}
if (doPlay && mPlaybackState != LeanbackPlaybackState.PLAYING) {
mPlaybackState = LeanbackPlaybackState.PLAYING;
if (mPosition > 0) {
mVideoView.seekTo(mPosition);
}
mVideoView.start();
mStartTimeMillis = System.currentTimeMillis();
} else {
mPlaybackState = LeanbackPlaybackState.PAUSED;
int timeElapsedSinceStart = (int) (System.currentTimeMillis() - mStartTimeMillis);
setPosition(mPosition + timeElapsedSinceStart);
mVideoView.pause();
}
}
public void fastForward() {
if (mDuration != -1) {
// Fast forward 10 seconds.
setPosition(mVideoView.getCurrentPosition() + (10 * 1000));
mVideoView.seekTo(mPosition);
}
}
public void rewind() {
// rewind 10 seconds
setPosition(mVideoView.getCurrentPosition() - (10 * 1000));
mVideoView.seekTo(mPosition);
}
private void setupCallbacks() {
mVideoView.setOnErrorListener(new MediaPlayer.OnErrorListener() {
@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
mVideoView.stopPlayback();
mPlaybackState = LeanbackPlaybackState.IDLE;
return false;
}
});
mVideoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
if (mPlaybackState == LeanbackPlaybackState.PLAYING) {
mVideoView.start();
}
}
});
mVideoView.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
@Override
public void onCompletion(MediaPlayer mp) {
mPlaybackState = LeanbackPlaybackState.IDLE;
}
});
}
@Override
public void onInitializationFailure(YouTubePlayer.Provider provider, YouTubeInitializationResult result) {
Toast.makeText(this, "Failured to Initialize!", Toast.LENGTH_LONG).show();
}
@Override
public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer player, boolean wasRestored) {
/** add listeners to YouTubePlayer instance **/
player.setPlayerStateChangeListener(playerStateChangeListener);
player.setPlaybackEventListener(playbackEventListener);
player.setFullscreen(true);
player.setPlayerStyle(YouTubePlayer.PlayerStyle.CHROMELESS);
//player.play();
/** Start buffering **/
for (int i = 0; i < MovieProvider.mItems.size(); i++) {
Movie movie = (Movie) getIntent().getSerializableExtra(DetailsActivity.MOVIE);
player.loadVideo(movie.getyTubeID());
}
}
private YouTubePlayer.PlaybackEventListener playbackEventListener = new YouTubePlayer.PlaybackEventListener() {
@Override
public void onBuffering(boolean arg0) {
}
@Override
public void onPaused() {
}
@Override
public void onPlaying() {
}
@Override
public void onSeekTo(int arg0) {
}
@Override
public void onStopped() {
}
};
private YouTubePlayer.PlayerStateChangeListener playerStateChangeListener = new YouTubePlayer.PlayerStateChangeListener() {
@Override
public void onAdStarted() {
}
@Override
public void onError(YouTubePlayer.ErrorReason arg0) {
}
@Override
public void onLoaded(String arg0) {
}
@Override
public void onLoading() {
}
@Override
public void onVideoEnded() {
}
@Override
public void onVideoStarted() {
}
};
}