将YouTubePlayerSupportFragment片段添加到片段事务中时类型不匹配

Question

我正在尝试在自己创建的片段中使用YouTubePlayerSupportFragment。当尝试将其添加到childFragmentManager的片段事务中时，出现类型转换错误，提示该对象的类型需要为Fragment而不是YouTubePlayerSupportFragment。我将其添加到片段事务中，以便可以选择何时隐藏或显示片段。除非与Kotlin有关，否则我在网上看到的所有用Java编写的内容的工作方式都与我的代码相同。

Fragment.xml

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <fragment
        android:id="@+id/youtube_player_fragment"
        android:name="com.google.android.youtube.player.YouTubePlayerSupportFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

Fragment.kt

import android.os.Bundle
import android.text.SpannableString
import android.text.style.BulletSpan
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.ImageView
import android.widget.LinearLayout
import android.widget.TextView
import android.widget.Toast
import androidx.fragment.app.Fragment
import com.google.android.youtube.player.YouTubeInitializationResult
import com.google.android.youtube.player.YouTubePlayer
import com.google.android.youtube.player.YouTubePlayerSupportFragment
class ExpandedItemFragment(private val hasVideo: Boolean) : Fragment(), YouTubePlayer.OnInitializedListener {
    private lateinit var mosquitoVideo: YouTubePlayerSupportFragment

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        return inflater.inflate(
            R.layout.expanded_item, container, false
        )
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        initializeLayout()
    }

    private fun initializeLayout() {
        mosquitoVideo = YouTubePlayerSupportFragment.newInstance()
        childFragmentManager.beginTransaction()
            .add(R.id.youtube_player_fragment, mosquitoVideo) //Type cast error happening here
        if (hasVideo) {
            mosquitoVideo.initialize(getString(R.string.google_api_key), this)
        }
    }
override fun onInitializationSuccess(
        provider: YouTubePlayer.Provider,
        youTubePlayer: YouTubePlayer,
        b: Boolean
    ) {
        if (!b) {
            youTubePlayer.cueVideo("rD8SmacBUcU")
        }
    }

    override fun onInitializationFailure(
        provider: YouTubePlayer.Provider,
        youTubeInitializationResult: YouTubeInitializationResult
    ) {
        Toast.makeText(activity, "Youtube video failed to play", Toast.LENGTH_SHORT).show()
    }

Answer 1

尝试在此处使用此组件以实现网络框架https://github.com/PierfrancescoSoffritti/android-youtube-player

添加到build.grandle

dependencies {
     implementation 'com.pierfrancescosoffritti.androidyoutubeplayer:core:10.0.5'
        }

添加到您的XML

<com.pierfrancescosoffritti.androidyoutubeplayer.core.player.views.YouTubePlayerView
        android:id="@+id/youtube_player_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
       />

加载视频

YouTubePlayerView youTubePlayerView = findViewById(R.id.youtube_player_view);


youTubePlayerView.addYouTubePlayerListener(new AbstractYouTubePlayerListener() {
  @Override
  public void onReady(@NonNull YouTubePlayer youTubePlayer) {
    String videoId = "rD8SmacBUcU";
    youTubePlayer.loadVideo(videoId, 0);
  }
});