【问题标题】:Android: When watching a youtube video fullscreen I press back and the Activity finishAndroid:当全屏观看 youtube 视频时,我按下回,活动结束
【发布时间】:2013-03-28 19:36:01
【问题描述】:

我已经阅读了所有关于从 YouTube 视频中退出全屏的方法是按下回,但在我的 Activity 中它不是这样工作的,但我希望它这样做。

我把代码发给你:

public class MainActivity extends YouTubeFailureRecoveryActivity {
    public static String prefix = "https://gdata.youtube.com/feeds/api/playlists/";
    public static String sufix = "?v=2&alt=jsonc";

    private String myPlayList = "PLZGKlf2ZwY7ua0C2oeUaXQKeLKNGy3mkh";

    private VideosListFragment videosFragment;

    // The next video to play
    private Video actualVideo;

    // This is the handler that receives the response when the YouTube read
    private Handler responseHandler;


    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        videosFragment = (VideosListFragment) getFragmentManager().findFragmentById(R.id.videosListView);
        getUserYouTubeFeed();

    }

    @Override
    public void onInitializationSuccess(YouTubePlayer.Provider provider,
            YouTubePlayer player, boolean wasRestored) {
        if (!wasRestored) {
            player.loadVideo(actualVideo.getVideoId());
        }
    }

    @Override
    protected YouTubePlayer.Provider getYouTubePlayerProvider() {
        return (YouTubePlayerFragment) getFragmentManager().findFragmentById(
                R.id.youtube_fragment);
    }

    public void getUserYouTubeFeed() {
        responseHandler = new Handler() {
            public void handleMessage(Message msg) {
                populateListWithVideos(msg);
            };
        };
        // We start a new AsyncTask that does its work on its own thread
        // We pass in a handler that will be called when the task has finished
        LoadPlayListElements bgTask = new LoadPlayListElements(responseHandler);
        bgTask.execute(myPlayList);

    }

    /**
     * This method retrieves the Library of videos from the task and passes them
     * to our ListView
     * 
     * @param msg
     */
    private void populateListWithVideos(Message msg) {
        Library lib = (Library) msg.getData().get(
                LoadPlayListElements.LIBRARY);
        VideosAdapter videos = new VideosAdapter(this, lib.getVideos());
        videosFragment.setListAdapter(videos);
    }

    @Override
    protected void onStop() {
        // Make sure we null our handler when the activity has stopped
        responseHandler = null;
        super.onStop();
    }

    public void setVideo(Video _item, boolean _activate) {
        actualVideo = _item;
        if (_activate){
            YouTubePlayerFragment fragment = (YouTubePlayerFragment) getFragmentManager()
                    .findFragmentById(R.id.youtube_fragment);
            if (fragment != null && fragment.isInLayout()) {
                fragment.initialize(DeveloperKey.DEVELOPER_KEY, this);
            }
        }
    }
}

和布局:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin" >

    <fragment
        android:id="@+id/videosListView"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:layout_marginTop="?android:attr/actionBarSize"
        class="com.vivoenmimundo.sc2hotsepicreplays.ui.phone.fragment.VideosListFragment" >
    </fragment>

    <fragment
      android:name="com.google.android.youtube.player.YouTubePlayerFragment"
      android:id="@+id/youtube_fragment"
      android:layout_width="0dp"
      android:layout_height="wrap_content"
      android:layout_weight="2"
      android:layout_gravity="center_vertical"/>
</LinearLayout>

有什么想法吗?我尽量不做任何太奇怪的事情,只是从 YouTube 的 API 示例中复制/粘贴。

【问题讨论】:

标签: android fullscreen android-youtube-api


【解决方案1】:

如前所述,这是正确的行为 - 因为玩家在片段中,所以我必须通过以下方式抓住后退按钮:

@Override
public void onBackPressed() {
    if (fullScreen){
        videoPlayer.setFullscreen(false);
    } else{
        super.onBackPressed();
    }
}

并像这样设置我的“fullScreen”布尔值:

@Override
public void onInitializationSuccess(YouTubePlayer.Provider provider,
        YouTubePlayer player, boolean wasRestored) {
    if (!wasRestored) {
        showPlayer();
        videoPlayer = player;
        videoPlayer.setOnFullscreenListener(new OnFullscreenListener() {

            @Override
            public void onFullscreen(boolean _isFullScreen) {
                fullScreen = _isFullScreen;
            }
        });
        videoPlayer.loadVideo(actualVideo.getVideoId());
    }
}

谢谢大家!

【讨论】:

  • 如何在 onBackPressed 方法中访问 videoPlayer?我尝试了同样的方法,但得到了这个 NullPointerException: Attempt to invoke interface method 'void com.google.android.youtube.player.YouTubePlayer.setFullscreen(boolean)' on a null object reference
  • 将 videoplayer 对象放入 onInitializationSuccess 方法内的字段变量中
  • 这在片段中不起作用。由于 onBackPressed 方法在片段中不可用。
【解决方案2】:

第 1 步:按照 Nhano 的答案 16

第 2 步:在您的 Menifest YoutubeActivity 标签中添加以下行。

android:configChanges="orientation|screenSize"

这个解决方案对我有用..

【讨论】:

    【解决方案3】:

    您可以尝试检测后退按钮按下并自定义定义它的作用。

    // Sets functionality of the hard buttons on the device
    @Override 
    public boolean onKeyUp(int keyCode, KeyEvent event)
    {
        if (keyCode == KeyEvent.KEYCODE_BACK) {
            // Custom define what you want to happen
        }
        return true;
    }
    

    【讨论】:

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