如何从youtubestandaloneplayer按下后退按钮返回上一个活动

Question

我有一项活动来显示来自youtube的视频列表。单击某个项目时，它将使用以下代码播放视频。但在紧急情况下没有任何反应。谁能告诉我如何回到以前的活动？

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public class VideoPlayer extends YouTubeBaseActivity implements YouTubePlayer.OnInitializedListener {
private String videoId;
private static final int REQ_START_STANDALONE_PLAYER = 1;
private final static String DBUG = VideoPlayer.class.getSimpleName();
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_video_player);
    Intent in = getIntent();
    videoId = in.getStringExtra("videoId");
    System.out.println("VideoId received :::"+videoId);
    Intent intent = YouTubeStandalonePlayer.createVideoIntent(this, Constants.DEVELOPER_KEY, videoId,0,false,false);
    startActivityForResult(intent, 1);
}
@Override
public void onBackPressed() {
// TODO Auto-generated method stub
    super.onBackPressed();
    Log.v(DBUG, "Back has been pressed::");
    finishActivity(REQ_START_STANDALONE_PLAYER);
    finish();
}
}

Answer 1

哦，我找到了答案。我使用intent代替初始化youtube播放器视图。

private String videoId;
private final static String DBUG = VideoPlayer.class.getSimpleName();
private YouTubePlayerView youtuber;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_video_player);
    Intent in = getIntent();
    videoId = in.getStringExtra("videoId");
    System.out.println("VideoId received :::"+videoId);
    youtuber = (YouTubePlayerView) findViewById(R.id.youtube_view);
    youtuber.initialize(Constants.DEVELOPER_KEY, this);
}
@Override
public void onInitializationSuccess(Provider arg0, YouTubePlayer arg1,
        boolean arg2) {
    // TODO Auto-generated method stub
    Log.v(DBUG, "Playing video");
    arg1.cueVideo(videoId);
}

Answer 2

尝试将onBackPressed（）改为onKeyDown（）：

    @Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
            Log.v(DBUG, "Back has been pressed::");
            finishActivity(REQ_START_STANDALONE_PLAYER);
            finish();

    return true;
}