隐藏回收器视图子项，除了我单击的那个

Question

我正在实现一个水平回收器视图，其中Pierfrancesco Soffritti的YouTubePlayerView显示一系列视频。 我添加了一个全屏侦听器，以便在单击按钮时全屏显示。 我试图做的是在全屏离开单击的子项时隐藏所有回收器视图子项，然后在退出全屏时恢复视图。 以某种方式可能吗？ 提前谢谢你

编辑

这是我的适配器类，我想在OnBind中选择我单击的Recyclerview项目并将其隐藏

public class VideoAdapter extensions RecyclerView.Adapter { 私有静态最终字符串 TAG = "视频适配器";

private List<Video> mVideos;
private Lifecycle mLifecycle;

public VideoAdapter(List<Video> mVideos, Lifecycle mLifecycle) {
this.mVideos = mVideos;
this.mLifecycle = mLifecycle;
}

@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
YouTubePlayerView youTubePlayerView = (YouTubePlayerView) LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_videos, parent, false);
mLifecycle.addObserver(youTubePlayerView);
return new ViewHolder(youTubePlayerView);
}
@Override
public void onBindViewHolder(@NonNull final ViewHolder holder, final int position) {
holder.cueVideo(mVideos.get(position).getVideoId());
}
@Override
public int getItemCount() {
if(!(mVideos == null))
return mVideos.size();
return 0;
}
public class ViewHolder extends RecyclerView.ViewHolder{
private YouTubePlayerView youTubePlayerView;
private YouTubePlayer youTubePlayer;
private String currentVideoId;
ViewHolder(YouTubePlayerView playerView) {
super(playerView);
youTubePlayerView = playerView;
youTubePlayerView.addYouTubePlayerListener(new AbstractYouTubePlayerListener() {
@Override
public void onReady(@NonNull YouTubePlayer initializedYouTubePlayer) {
youTubePlayer = initializedYouTubePlayer;
youTubePlayer.cueVideo(currentVideoId, 0);
}
});
}
void cueVideo(String videoId) {
currentVideoId = videoId;
if(youTubePlayer == null)
return;
youTubePlayer.cueVideo(videoId, 0);
}
}

}

Answer 1

我没有使用 RecyclerView，但我正在使用 LinearLayout 在我的应用程序中解决(并解决(类似的问题 - 现在我修改了我的代码只是为了 YT全屏(将其视为"假"全屏" - 您正在旋转整个布局，同时保持纵向模式：-((。

简而言之：

• 创建全屏布局并将其添加到父布局;
• 在.getPlayerUiController().setFullScreenButtonClickListener从布局中删除 YT 播放器视图(例如。trailerLayout(，并将相同的 YT 播放器视图添加到全屏布局中;
退出全屏
• 时，从全屏布局中删除 YT 播放器视图，并将相同的 YT 播放器视图添加到trailerLayout中。

除了全屏，我还添加了几行代码来覆盖后退按钮的行为，所以它会

• 不退出应用，而只将应用移至后台
在全屏
• 模式下退出全屏。

这是代码，我希望它会有所帮助：-(

• activity_main.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="@+id/fullscreen">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:id="@+id/trailer">
</LinearLayout>
</LinearLayout>

• MainActivity.kt

import android.graphics.Rect
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.view.View
import android.view.ViewGroup
import android.view.Window
import android.view.WindowManager
import android.widget.Button
import android.widget.LinearLayout
import androidx.activity.OnBackPressedCallback
import com.pierfrancescosoffritti.androidyoutubeplayer.core.player.YouTubePlayer
import com.pierfrancescosoffritti.androidyoutubeplayer.core.player.listeners.AbstractYouTubePlayerListener
import com.pierfrancescosoffritti.androidyoutubeplayer.core.player.views.YouTubePlayerView
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
this?.onBackPressedDispatcher?.addCallback(
this,
object : OnBackPressedCallback(
true
) {
override fun handleOnBackPressed() {
moveTaskToBack(true)
}
})
val trailerLayout = findViewById<LinearLayout>(R.id.trailer)
val fullScreenLayout = findViewById<LinearLayout>(R.id.fullscreen)
val youTubeButton = Button(this)
youTubeButton.text = "Load YT video"
trailerLayout.addView(youTubeButton)
youTubeButton.setOnClickListener {
val rectangle = Rect()
val window: Window = window
window.decorView.getWindowVisibleDisplayFrame(rectangle)
val statusBarHeight: Int = rectangle.top
val sizeFullscreen = statusBarHeight + supportActionBar!!.height
val fullScreenYouTubeTrailerLayout = LinearLayout(this)
fullScreenYouTubeTrailerLayout.layoutParams = LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT
)
fullScreenYouTubeTrailerLayout.orientation = LinearLayout.VERTICAL
val youTubeTrailerView = YouTubePlayerView(this)
youTubeTrailerView.getPlayerUiController().showFullscreenButton(true)
lifecycle.addObserver(youTubeTrailerView)
youTubeTrailerView.addYouTubePlayerListener(object : AbstractYouTubePlayerListener() {
override fun onReady(youTubePlayer: YouTubePlayer) {
val videoId = "VppjX4to9s4"
youTubePlayer.cueVideo(videoId, 0f)
}
})
trailerLayout.removeAllViewsInLayout()
trailerLayout.addView(youTubeButton)
trailerLayout.addView(youTubeTrailerView)
fullScreenLayout.addView(fullScreenYouTubeTrailerLayout)
this?.onBackPressedDispatcher?.addCallback(
this,
object : OnBackPressedCallback(
true
) {
override fun handleOnBackPressed() {
if (window.decorView.systemUiVisibility ==
View.SYSTEM_UI_FLAG_FULLSCREEN
) {
val w = fullScreenLayout.width - sizeFullscreen
val h = fullScreenLayout.height
fullScreenLayout.rotation = 0f
fullScreenLayout.translationX = 0f
fullScreenLayout.translationY = 0f
val lp = fullScreenLayout.layoutParams as ViewGroup.LayoutParams
lp.height = w
lp.width = h

fullScreenLayout.requestLayout()
fullScreenYouTubeTrailerLayout.removeAllViewsInLayout()
trailerLayout.addView(youTubeButton)
trailerLayout.addView(youTubeTrailerView)
youTubeTrailerView.exitFullScreen()
window.clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)
window.decorView.systemUiVisibility = View.VISIBLE
window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_VISIBLE
supportActionBar?.show()
} else moveTaskToBack(true)
}
})
youTubeTrailerView.getPlayerUiController().setFullScreenButtonClickListener {
fullScreenYouTubeTrailerLayout.layoutParams = LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT
)
if (youTubeTrailerView.isFullScreen()) {
window.clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN)
actionBar?.show()
supportActionBar?.show()
val w = fullScreenLayout.width - sizeFullscreen
val h = fullScreenLayout.height
fullScreenLayout.rotation = 0f
fullScreenLayout.translationX = 0f
fullScreenLayout.translationY = 0f
val lp = fullScreenLayout.layoutParams as ViewGroup.LayoutParams
lp.height = w
lp.width = h

fullScreenLayout.requestLayout()
fullScreenYouTubeTrailerLayout.removeAllViewsInLayout()
trailerLayout.addView(youTubeButton)
trailerLayout.addView(youTubeTrailerView)
youTubeTrailerView.exitFullScreen()
window.decorView.systemUiVisibility = View.VISIBLE
window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_VISIBLE
} else {
window.setFlags(
WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN
)
window.addFlags(
WindowManager.LayoutParams.FLAG_FULLSCREEN
)
window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_FULLSCREEN
actionBar?.hide()
supportActionBar?.hide()
val w = fullScreenLayout.width
val h = fullScreenLayout.height + sizeFullscreen
fullScreenLayout.rotation = 90f
fullScreenLayout.translationX = (w - h) / 2.toFloat()
fullScreenLayout.translationY = (h - w) / 2.toFloat()
val lp = fullScreenLayout.layoutParams as ViewGroup.LayoutParams
lp.height = w
lp.width = h

fullScreenLayout.requestLayout()
trailerLayout.removeAllViewsInLayout()
fullScreenYouTubeTrailerLayout.addView(youTubeTrailerView)
youTubeTrailerView.enterFullScreen()
}
}
}
}
}

我还有一个"屏幕方向="肖像">

• 安卓清单.xml

...
<activity android:name=".MainActivity"
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
...

对于新手，不要忘记在

• build.gradle (：app(

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