android - 无法实例化 com.google.android.youtube.player.YouTubePlayerView

Question

我是 android 开发的新手。我正在尝试实现 youtube Api。但是在我的 XML 文件中它显示错误“无法实例化:- com.google.android.youtube.player.YouTubePlayerView”

这是我的 MAinActivity 代码:-

public class MainActivity extends YouTubeBaseActivity {
Button b;
private YouTubePlayerView youtubeplayerview;
private YouTubePlayer.OnInitializedListener onInitializedListener;


@Override
public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
    super.onCreate(savedInstanceState, persistentState);
    setContentView(R.layout.activity_main);

    youtubeplayerview=(YouTubePlayerView)findViewById(R.id.Youtube_view);
    onInitializedListener=new YouTubePlayer.OnInitializedListener(){
        @Override
        public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer youTubePlayer, boolean b) {
            youTubePlayer.loadVideo("wvjqFy33HVA");
        }

        @Override
        public void onInitializationFailure(YouTubePlayer.Provider provider, YouTubeInitializationResult youTubeInitializationResult) {

        }
    };
    b=(Button)findViewById(R.id.button);
    b.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            youtubeplayerview.initialize("API KEY",onInitializedListener);
        }
    });
}
}

这是我的 XML 文件代码:-

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="PLAY VEDIO"
    android:id="@+id/button"
    android:layout_centerVertical="true"
    android:layout_centerHorizontal="true" />

<com.google.android.youtube.player.YouTubePlayerView
    android:layout_width="500dp"
    android:layout_height="500dp"
    android:id="@+id/Youtube_view"
    android:layout_alignParentTop="true"
    android:layout_above="@+id/button"
    android:layout_alignParentRight="true"
    android:layout_alignParentEnd="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true" />

Here is Error Screenshot

Answer 1

您是否将 YouTube Android Player API 添加到您的媒体库中？添加它解决了我的问题..尝试按照下面给出的步骤添加相同的内容:

1.从https://developers.google.com/youtube/android/player/downloads/下载YouTube Android Player API jar 文件

2.解压缩zip文件，转到libs -> YouTubeAndroidPlayerApi.jar并复制它

3.将jar文件粘贴到android studio的/app/libs/目录下

最后将编译文件('libs/YouTubeAndroidPlayerApi.jar')添加到您的应用级build.gradle文件

同步、构建并检查是否正常