考虑到我在列表视图中有一个对象，其中有一个YouTube videoId作为参数之一。我知道如何使用OnItemClickListener以及如何通过意图传递额外的信息。当我进入接收活动时，必须在onCreate方法中调用intent.getStringExtra（“ key”）。当我调用cueVideo（videoId）方法时，我需要在另一个方法onInitializationSuccess中检索到videoId。您不仅可以解释该怎么做，还可以解释为什么我可以理解自己的成长。
public class PlayVideo extends YouTubeBaseActivity
implements YouTubePlayer.OnInitializedListener{
private String GOOGLE_API_KEY = "AIzaSyCKcPfcvaFtN_izxXg7lzEcKVdF0A-7y1Q";
String VIDEO_ID = "ZHAe-SaplCw";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_play_video);
YouTubePlayerView playerView = (YouTubePlayerView) findViewById(R.id.player_view);
playerView.initialize(GOOGLE_API_KEY, this);
//Get videoId from current ListView Object
Intent getVideoId = getIntent();
String videoId = getVideoId.getStringExtra("videoIdExtra");
}
@Override
public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer youTubePlayer, boolean wasRestored) {
Toast.makeText(this, "Video Playing", Toast.LENGTH_SHORT).show();
youTubePlayer.setPlayerStateChangeListener(playerStateChangeListener);
youTubePlayer.setPlaybackEventListener(playbackEventListener);
if(!wasRestored){
youTubePlayer.cueVideo(VIDEO_ID);
}
}
private YouTubePlayer.PlaybackEventListener playbackEventListener = new YouTubePlayer.PlaybackEventListener() {
@Override
public void onPlaying() {
}
@Override
public void onPaused() {
}
@Override
public void onStopped() {
}
@Override
public void onBuffering(boolean b) {
}
@Override
public void onSeekTo(int i) {
}
};
YouTubePlayer.PlayerStateChangeListener playerStateChangeListener = new YouTubePlayer.PlayerStateChangeListener() {
@Override
public void onLoading() {
}
@Override
public void onLoaded(String s) {
}
@Override
public void onAdStarted() {
}
@Override
public void onVideoStarted() {
}
@Override
public void onVideoEnded() {
}
@Override
public void onError(YouTubePlayer.ErrorReason errorReason) {
}
};
@Override
public void onInitializationFailure(YouTubePlayer.Provider provider, YouTubeInitializationResult youTubeInitializationResult) {
Toast.makeText(this, "Play Failed", Toast.LENGTH_SHORT).show();
}
}
最佳答案
声明一个成员变量，或者只是在其他方法中调用getIntent并在那里获取ID。
您能解释为什么吗？
因为您想使用onCreate之外的值