Android 与Youtube播放器支持片段抗争
我试图在一个片段中使用Youtube播放器支持片段,但应用程序总是崩溃(NullPointerException),我还没有找到任何类似的帖子来修复它 我已经导入了android.support.v4.app.Fragment,所以这应该不是问题所在 这就是我的片段类的外观:Android 与Youtube播放器支持片段抗争,android,android-fragments,youtube,youtube-api,android-youtube-api,Android,Android Fragments,Youtube,Youtube Api,Android Youtube Api,我试图在一个片段中使用Youtube播放器支持片段,但应用程序总是崩溃(NullPointerException),我还没有找到任何类似的帖子来修复它 我已经导入了android.support.v4.app.Fragment,所以这应该不是问题所在 这就是我的片段类的外观: package com.example.activitydetector; import com.google.android.youtube.player.YouTubeBaseActivity; import com.
package com.example.activitydetector;
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.YouTubePlayer.OnInitializedListener;
import com.google.android.youtube.player.YouTubePlayer.Provider;
import com.google.android.youtube.player.YouTubePlayerFragment;
import com.google.android.youtube.player.YouTubePlayerSupportFragment;
import com.google.android.youtube.player.YouTubePlayerView;
import systemManager.SystemManager;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.Toast;
public class GuidelinesFragment extends YouTubePlayerSupportFragment {
SystemManager sm;
YouTubePlayerView youTubeView;
String URL_VIDEO = "CaA-k1l0xa4";
String KEY_DEVELOPER = "AIzaSyBIIs0u0NXhsZguv8nCNvSzUmflTt7K1Ek";
public GuidelinesFragment() {
super();
// TODO Auto-generated constructor stub
}
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
}
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.youtube, container, false);
YouTubePlayerSupportFragment youTubePlayerSupportFragment = (YouTubePlayerSupportFragment) getFragmentManager().findFragmentById(R.id.youtubeplayerfragment);
youTubePlayerSupportFragment.initialize(KEY_DEVELOPER, new OnInitializedListener() {
@Override
public void onInitializationSuccess(Provider arg0, YouTubePlayer arg1,
boolean arg2) {
// TODO Auto-generated method stub
arg1.cueVideo(URL_VIDEO);
}
@Override
public void onInitializationFailure(Provider arg0,
YouTubeInitializationResult arg1) {
// TODO Auto-generated method stub
}
});
return view;
}
}
这是我完全简单的“Youtube”布局:
任何帮助或暗示都将不胜感激。我已经浪费了大约4个小时没有运气了。我以前遇到过这个问题,我相信这个问题是由于试图膨胀YouTubePlayerSupportFragment布局造成的。我通过创建如下片段解决了我的问题:
public class PlayerYouTubeFrag extends YouTubePlayerSupportFragment {
private String currentVideoID = "video_id";
private YouTubePlayer activePlayer;
public static PlayerYouTubeFrag newInstance(String url) {
PlayerYouTubeFrag playerYouTubeFrag = new PlayerYouTubeFrag();
Bundle bundle = new Bundle();
bundle.putString("url", url);
playerYouTubeFrag.setArguments(bundle);
return playerYouTubeFrag;
}
private void init() {
initialize(DeveloperKey.DEVELOPER_KEY, new OnInitializedListener() {
@Override
public void onInitializationFailure(Provider arg0, YouTubeInitializationResult arg1) {
}
@Override
public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer player, boolean wasRestored) {
activePlayer = player;
activePlayer.setPlayerStyle(YouTubePlayer.PlayerStyle.DEFAULT);
if (!wasRestored) {
activePlayer.loadVideo(getArguments().getString("url"), 0);
}
}
});
}
@Override
public void onYouTubeVideoPaused() {
activePlayer.pause();
}
}
PlayerYouTubeFrag myFragment = PlayerYouTubeFrag.newInstance("video_id");
getSupportFragmentManager().beginTransaction().replace(R.id.video_container, myFragment).commit();
然后调用片段的一个实例,如下所示:
public class PlayerYouTubeFrag extends YouTubePlayerSupportFragment {
private String currentVideoID = "video_id";
private YouTubePlayer activePlayer;
public static PlayerYouTubeFrag newInstance(String url) {
PlayerYouTubeFrag playerYouTubeFrag = new PlayerYouTubeFrag();
Bundle bundle = new Bundle();
bundle.putString("url", url);
playerYouTubeFrag.setArguments(bundle);
return playerYouTubeFrag;
}
private void init() {
initialize(DeveloperKey.DEVELOPER_KEY, new OnInitializedListener() {
@Override
public void onInitializationFailure(Provider arg0, YouTubeInitializationResult arg1) {
}
@Override
public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer player, boolean wasRestored) {
activePlayer = player;
activePlayer.setPlayerStyle(YouTubePlayer.PlayerStyle.DEFAULT);
if (!wasRestored) {
activePlayer.loadVideo(getArguments().getString("url"), 0);
}
}
});
}
@Override
public void onYouTubeVideoPaused() {
activePlayer.pause();
}
}
PlayerYouTubeFrag myFragment = PlayerYouTubeFrag.newInstance("video_id");
getSupportFragmentManager().beginTransaction().replace(R.id.video_container, myFragment).commit();
在我的例子中,
video\u container
是一个空框架布局。CzarMatt把它钉死了。不过,为了补充他的答案,不要忘记需要调用init()
方法。为此,请遵循CzarMatt的代码并添加一行:
public static PlayerYouTubeFrag newInstance(String url) {
PlayerYouTubeFrag playerYouTubeFrag = new PlayerYouTubeFrag();
Bundle bundle = new Bundle();
bundle.putString("url", url);
playerYouTubeFrag.setArguments(bundle);
playerYouTubeFrag.init(); //This line right here
return playerYouTubeFrag;
}
此外,我确信人们会遇到与我相同的问题,尽管扎马特在上面提到了这一点,只是重申一下,当你传递视频的URL时,你没有传递youtube的URL 也就是说,使用:
“youtube.com/watch?v=z7PYqhABiSo&feature=youtu.be”
您只传递了视频ID
即使用:“z7PYqhABiSo”
因为它是Google自己的文档,它知道如何使用id播放它。@Cristiana214可能会实例化一个新片段并传递一个新的视频id。然后调用片段管理器替换另一个容器,传递新创建的片段。@CzarMatt我无法运行您在调用实例上方发布的代码“getSupportFragmentManager()”在重做中,您忘记了一件事,这是使其工作所必需的(至少对我来说是这样)就在下面一行:“playerYouTubeFrag.setArguments(bundle);,您需要添加:“playerYouTubeFrag.init();“。这将初始化init()类,该类将启动视频。此外,由于我确信人们会遇到与我相同的问题,因此当您传入视频的URL时,您没有传入youtube URL(即:”),您只传入视频ID(即:“z7PYqhABiSo”)。由于它是谷歌自己的文档,它知道如何使用id来播放它。@CzarMatt为什么Onyoutubevideo有@Override注释?YouTubePlayerSupportFragment中没有这样的方法。