列表支持前后视频预加载

app/src/main/java/com/gamedog/vididin/main/fragments/HomeFragment.kt

@@ -241,9 +241,10 @@ class HomeFragment : AppViewsFragment<ViewBinding, UiState, ViewModel>(), OnSwit
                     handleEventOneVideoSwiped()
                 }
 
-                // Preload next N videos
+                // Preload next N videos and keep previous N videos
                 val preloadCount = 3
                 for (i in 1..preloadCount) {
+                    // Next N
                     val nextPos = position + i
                     if (nextPos < mViewPagerAdapter.itemCount) {
                         val nextFragment = mViewPagerAdapter.getFragmentByIndex(nextPos)
@@ -251,22 +252,35 @@ class HomeFragment : AppViewsFragment<ViewBinding, UiState, ViewModel>(), OnSwit
                             nextFragment.preloadVideo()
                         }
                     }
-                }
+                    
-
+                    // Prev N (Keep them ready for playback)
-                // Release players for previous fragments to save memory
-                // We keep 'preloadCount' fragments after current, and maybe 0 before?
-                // But offscreenPageLimit keeps them in memory. We should release their heavy resources.
-                val offscreenLimit = 3
-                for (i in 1..offscreenLimit) {
                     val prevPos = position - i
                     if (prevPos >= 0) {
                         val prevFragment = mViewPagerAdapter.getFragmentByIndex(prevPos)
                         if (prevFragment != null && prevFragment is HomeItemFragment) {
-                            prevFragment.releasePlayer()
+                            prevFragment.preloadVideo()
                         }
                     }
                 }
 
+                // Release players outside of the window (position - preloadCount - 1)
+                val releasePosBefore = position - preloadCount - 1
+                if (releasePosBefore >= 0) {
+                    val prevFragment = mViewPagerAdapter.getFragmentByIndex(releasePosBefore)
+                    if (prevFragment != null && prevFragment is HomeItemFragment) {
+                        prevFragment.releasePlayer()
+                    }
+                }
+                
+                // Release players outside of the window (position + preloadCount + 1)
+                val releasePosAfter = position + preloadCount + 1
+                if (releasePosAfter < mViewPagerAdapter.itemCount) {
+                     val nextFragment = mViewPagerAdapter.getFragmentByIndex(releasePosAfter)
+                     if (nextFragment != null && nextFragment is HomeItemFragment) {
+                         nextFragment.releasePlayer()
+                     }
+                }
+
                 // load more
                 if (mViewPagerAdapter.itemCount > 0 && position >= mViewPagerAdapter.itemCount - 3) {
                     lifecycleScope.launch {

app/src/main/java/com/gamedog/vididin/main/fragments/home/fragment/HomeItemFragment.kt

@@ -93,17 +93,23 @@ class HomeItemFragment : AppViewsEmptyViewModelFragment<ViewBinding>() {
 
     }
 
+    override fun onSaveInstanceState(outState: Bundle) {
+        super.onSaveInstanceState(outState)
+        outState.putFloat("curPlayedSecond", mCurPlayedSecond)
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        if (savedInstanceState != null) {
+            mCurPlayedSecond = savedInstanceState.getFloat("curPlayedSecond", 0f)
+        }
+    }
+
     override fun onDestroy() {
         super.onDestroy()
         mMaskBitmap?.recycle()
     }
 
-
-
-
-
-
-
     fun playVideo() {
         mIsPreloading = false
         binding?.playerContainer?.isVisible = true
@@ -174,19 +180,21 @@ class HomeItemFragment : AppViewsEmptyViewModelFragment<ViewBinding>() {
             mPlayerView?.enableAutomaticInitialization = true
         }
 
+//        val playerUiController = MyPlayerControlView(mPlayerView!!)
+//        mPlayerView!!.setCustomPlayerUi(playerUiController.rootView)
+        mPlayerView!!.removeViews(1, mPlayerView!!.childCount - 1)
+
         mPlayerView!!.addYouTubePlayerListener(object : AbstractYouTubePlayerListener() {
-            override fun onReady(@NonNull youTubePlayer: YouTubePlayer) {
+            override fun onReady(youTubePlayer: YouTubePlayer) {
                 mPlayer = youTubePlayer
-                val playerUiController = MyPlayerControlView(mPlayerView!!, youTubePlayer)
-                mPlayerView!!.setCustomPlayerUi(playerUiController.rootView)
 
                 if (mPendingPlay) {
-                    mPlayer?.loadVideo(mVideoData!!.id, 0f)
+                    mPlayer?.loadVideo(mVideoData!!.id, mCurPlayedSecond)
                 } else if (mIsPreloading) {
                     mPlayer?.mute()
-                    mPlayer?.loadVideo(mVideoData!!.id, 0f)
+                    mPlayer?.loadVideo(mVideoData!!.id, mCurPlayedSecond)
                 } else {
-                    mPlayer?.cueVideo(mVideoData!!.id, 0f)
+                    mPlayer?.cueVideo(mVideoData!!.id, mCurPlayedSecond)
                 }
             }
 
@@ -232,6 +240,7 @@ class HomeItemFragment : AppViewsEmptyViewModelFragment<ViewBinding>() {
                     PlayerConstants.PlayerState.ENDED  -> {
                         togglePlayingState(false)
                         if (!mIsPreloading) {
+                            mCurPlayedSecond = 0f
                             mPlayer?.loadVideo(mVideoData!!.id, 0f)
                         }
                     }
@@ -272,9 +281,9 @@ class HomeItemFragment : AppViewsEmptyViewModelFragment<ViewBinding>() {
     private fun togglePlayingState1(isPlaying: Boolean) {
         if (mIsPlaying != isPlaying) {
             mIsPlaying = isPlaying
-            if (mIsPlaying) {
+//            if (mIsPlaying) {
-                binding?.circlePb?.isVisible = false
+//                binding?.circlePb?.isVisible = false
-            }
+//            }
 
             binding?.ivMask?.isVisible = !mIsPlaying
             // Ensure playerContainer is visible when playing OR preloading (masked)
@@ -295,7 +304,7 @@ class HomeItemFragment : AppViewsEmptyViewModelFragment<ViewBinding>() {
     private fun switchState2Play() {
         mThumbHandler.removeCallbacksAndMessages(null)
 
-        binding?.circlePb?.isVisible = false
+//        binding?.circlePb?.isVisible = false
         binding?.ivMask?.isVisible = false
         binding?.playerContainer?.isVisible = true
         hidePlayIconAnim()
@@ -305,7 +314,7 @@ class HomeItemFragment : AppViewsEmptyViewModelFragment<ViewBinding>() {
     private fun switchState2Pause() {
         binding?.ivMask?.isVisible = true
         binding?.playerContainer?.isVisible = false
-        showPlayIconAnim()
+//        showPlayIconAnim()
         mTickerTimer.pause()
     }
 
@@ -369,6 +378,7 @@ class HomeItemFragment : AppViewsEmptyViewModelFragment<ViewBinding>() {
 
 
     private fun hidePlayIconAnim() {
+        return
         if (!binding?.playIcon!!.isVisible) {
             return
         }
@@ -404,6 +414,7 @@ class HomeItemFragment : AppViewsEmptyViewModelFragment<ViewBinding>() {
     }
 
     private fun showPlayIconAnim() {
+        return
         with (binding?.playIcon!!) {
             visibility = View.VISIBLE
 

app/src/main/java/com/gamedog/vididin/widget/MyPlayerControlView.kt

@@ -21,13 +21,14 @@ import com.pierfrancescosoffritti.androidyoutubeplayer.core.customui.menu.YouTub
 import com.pierfrancescosoffritti.androidyoutubeplayer.core.customui.utils.FadeViewHelper
 import com.pierfrancescosoffritti.androidyoutubeplayer.core.customui.views.YouTubePlayerSeekBar
 import com.pierfrancescosoffritti.androidyoutubeplayer.core.customui.views.YouTubePlayerSeekBarListener
+import com.pierfrancescosoffritti.androidyoutubeplayer.core.player.listeners.YouTubePlayerCallback
 import kotlin.jvm.javaClass
 
 
 class MyPlayerControlView(
     private val youTubePlayerView: YouTubePlayerView,
-    private val youTubePlayer: YouTubePlayer
 ) : PlayerUiController {
+     var youTubePlayer: YouTubePlayer? = null
 
     val rootView: View = View.inflate(youTubePlayerView.context, R.layout.layout_player_controller, null)
 
@@ -133,16 +134,25 @@ class MyPlayerControlView(
 
         onMenuButtonClickListener = View.OnClickListener { youTubePlayerMenu.show(menuButton) }
 
-        initClickListeners()
+        youTubePlayerView.getYouTubePlayerWhenReady(object : YouTubePlayerCallback{
+            override fun onYouTubePlayer(youTubePlayer: YouTubePlayer) {
+                this@MyPlayerControlView.youTubePlayer = youTubePlayer
+                initClickListeners()
+            }
+        })
+
     }
 
-    private fun initClickListeners() {
-        youTubePlayer.addListener(youtubePlayerSeekBar)
-        youTubePlayer.addListener(fadeControlsContainer)
-        youTubePlayer.addListener(youTubePlayerStateListener)
 
-        youtubePlayerSeekBar.youtubePlayerSeekBarListener = object : YouTubePlayerSeekBarListener {
+    private fun initClickListeners() {
-            override fun seekTo(time: Float) = youTubePlayer.seekTo(time)
+        youTubePlayer?.addListener(youtubePlayerSeekBar)
+        youTubePlayer?.addListener(fadeControlsContainer)
+        youTubePlayer?.addListener(youTubePlayerStateListener)
+
+        youTubePlayer?.let {
+            youtubePlayerSeekBar.youtubePlayerSeekBarListener = object : YouTubePlayerSeekBarListener {
+                override fun seekTo(time: Float) = it.seekTo(time)
+            }
         }
         panel.setOnClickListener { fadeControlsContainer.toggleVisibility() }
         playPauseButton.setOnClickListener { onPlayButtonPressed() }
@@ -270,9 +280,9 @@ class MyPlayerControlView(
 
     private fun onPlayButtonPressed() {
         if (isPlaying)
-            youTubePlayer.pause()
+            youTubePlayer?.pause()
         else
-            youTubePlayer.play()
+            youTubePlayer?.play()
     }
 
     private fun updateState(state: PlayerConstants.PlayerState) {

app/src/main/res/layout/vididinapp_feature_home_item_layout.xml

@@ -8,44 +8,43 @@
         android:id="@+id/player_container"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:layout_gravity="center"/>
+        android:layout_gravity="center" />
 
     <androidx.appcompat.widget.AppCompatImageView
         android:id="@+id/iv_mask"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
+        android:layout_gravity="center"
         android:background="#00000000"
-        android:clickable="false"
+        android:clickable="false" />
-        android:layout_gravity="center"/>
 
     <View
         android:id="@+id/click_mask_view"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:clickable="true"
         android:layout_marginBottom="30dp"
-        />
+        android:clickable="true" />
 
 
     <androidx.appcompat.widget.AppCompatImageView
         android:id="@+id/play_icon"
         android:layout_width="100dp"
         android:layout_height="100dp"
+        android:layout_gravity="center"
         android:padding="20dp"
         android:src="@mipmap/icon_play"
-        android:visibility="gone"
+        android:visibility="gone" />
-        android:layout_gravity="center"/>
 
 
     <LinearLayout
         android:id="@+id/bottom_container"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:orientation="vertical"
+        android:layout_gravity="bottom"
         android:layout_marginVertical="25dp"
         android:layout_marginLeft="15dp"
         android:layout_marginRight="80dp"
-        android:layout_gravity="bottom">
+        android:orientation="vertical">
 
         <TextView
             android:id="@+id/tv_video_from"
@@ -53,34 +52,34 @@
             android:layout_height="wrap_content"
             android:singleLine="true"
             android:text="From"
-            android:textSize="15sp"
+            android:textColor="@color/white"
-            android:textColor="@color/white" />
+            android:textSize="15sp" />
 
         <FrameLayout
             android:layout_width="match_parent"
             android:layout_height="wrap_content">
+
             <TextView
                 android:id="@+id/tv_video_intro"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
                 android:layout_marginTop="5dp"
-                android:text="introduce"
+                android:layout_marginEnd="45dp"
                 android:clickable="false"
                 android:maxLines="2"
-                android:layout_marginEnd="45dp"
+                android:text="introduce"
-                android:textSize="15sp"
+                android:textColor="@color/white_al80"
-                android:textColor="@color/white_al80" />
+                android:textSize="15sp" />
 
             <androidx.appcompat.widget.AppCompatImageView
                 android:id="@+id/iv_intro_expand"
                 android:layout_width="40dp"
                 android:layout_height="40dp"
+                android:layout_gravity="right|bottom"
                 android:paddingHorizontal="10dp"
                 android:paddingVertical="5dp"
-                android:layout_gravity="right|bottom"
                 android:src="@mipmap/arrow_up"
-                android:visibility="gone"
+                android:visibility="gone" />
-                />
         </FrameLayout>
     </LinearLayout>
 
@@ -89,18 +88,17 @@
         android:id="@+id/progress_bar_player"
         android:layout_width="match_parent"
         android:layout_height="3dp"
-        android:layout_marginBottom="16dp"
-        android:layout_marginHorizontal="15dp"
         android:layout_gravity="bottom"
-        />
+        android:layout_marginHorizontal="15dp"
+        android:layout_marginBottom="16dp" />
 
     <ProgressBar
         android:id="@+id/circle_pb"
+        style="?android:attr/progressBarStyleLarge"
         android:layout_width="35dp"
         android:layout_height="35dp"
         android:layout_gravity="center"
         android:indeterminateTint="@android:color/white"
-        style="?android:attr/progressBarStyleLarge"
+        android:visibility="gone" />
-        />
 
 </FrameLayout>