...

app/src/main/java/com/base/browserwhite/ui/activity/mediabrowser/MediaVideoDetailActivity.kt

 package com.base.browserwhite.ui.activity.mediabrowser
 
 import android.graphics.Color
+import android.widget.SeekBar
+import android.widget.SeekBar.OnSeekBarChangeListener
+import androidx.activity.addCallback
 import androidx.core.view.updatePadding
+import androidx.lifecycle.lifecycleScope
 import androidx.media3.common.MediaItem
+import androidx.media3.common.Player
 import androidx.media3.exoplayer.ExoPlayer
 import com.base.browserwhite.databinding.ActivityMediaVideoDetailBinding
 import com.base.browserwhite.ui.activity.BaseActivity
 import com.base.browserwhite.utils.BarUtils
 import com.base.browserwhite.utils.LogEx
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.isActive
+import kotlinx.coroutines.launch
 
 class MediaVideoDetailActivity : BaseActivity<ActivityMediaVideoDetailBinding>() {
     private val TAG = "MediaVideoDetailActivity"
@@ -16,6 +26,8 @@ class MediaVideoDetailActivity : BaseActivity<ActivityMediaVideoDetailBinding>()
         ActivityMediaVideoDetailBinding.inflate(layoutInflater)
     }
     private lateinit var player: ExoPlayer
+    private var job: Job? = null
+    private var playEnd: Boolean = false
 
     override fun initView() {
         BarUtils.setStatusBarLightMode(this, true)
@@ -31,17 +43,122 @@ class MediaVideoDetailActivity : BaseActivity<ActivityMediaVideoDetailBinding>()
         val mediaItem = MediaItem.fromUri(uri)
 
         player.setMediaItem(mediaItem)
+//        player.playWhenReady = false
+        player.addListener(object : Player.Listener {
+            override fun onIsPlayingChanged(isPlaying: Boolean) {
+                super.onIsPlayingChanged(isPlaying)
+                binding.ivPlayPause.isSelected = isPlaying
+            }
+
+            override fun onPlaybackStateChanged(playbackState: Int) {
+                super.onPlaybackStateChanged(playbackState)
+                LogEx.logDebug(TAG, "playbackState=$playbackState")
+                //2,3,4
+                if (playbackState == Player.STATE_READY) {
+                    playEnd = false
+                    if (job == null) {
+                        job = upDatePositionJob()
+                    }
+                    // 获取总时长
+                    binding.root.post {
+                        val duration = player.duration
+                        binding.seekbar.max = duration.toInt()
+                        binding.tvDuration.text = duration.toTimeString()
+                    }
+
+                } else if (playbackState == Player.STATE_ENDED) {
+                    playEnd = true
+                    job?.cancel()
+                    job = null
+                }
+            }
+
+            override fun onPositionDiscontinuity(oldPosition: Player.PositionInfo, newPosition: Player.PositionInfo, reason: Int) {
+                super.onPositionDiscontinuity(oldPosition, newPosition, reason)
+                // 播放位置发生不连续变化
+            }
+
+        })
         player.prepare()
         player.play()
+
+    }
+
+    fun upDatePositionJob() = lifecycleScope.launch(Dispatchers.Main) {
+        while (isActive) {
+            val currentPosition = player.currentPosition
+            binding.seekbar.progress = currentPosition.toInt()
+            binding.tvCurrentPosition.text = currentPosition.toTimeString()
+            delay(100)
+        }
+    }
+
+    override fun initListener() {
+        super.initListener()
+
+        onBackPressedDispatcher.addCallback {
+            finishToMain()
+        }
+        binding.ivFanhui.setOnClickListener {
+            onBackPressedDispatcher.onBackPressed()
+        }
+
+        binding.ivPlayPause.setOnClickListener {
+            if (player.isPlaying) {
+                player.pause()
+                job?.cancel()
+                job = null
+            } else {
+                if (playEnd) {
+                    player.seekTo(0)
+                } else {
+                    player.play()
+                    if (job == null) {
+                        job = upDatePositionJob()
+                    }
+                }
+            }
+        }
+        binding.seekbar.setOnSeekBarChangeListener(object : OnSeekBarChangeListener {
+            override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
+                if (fromUser) {
+                    player.seekTo(progress.toLong())
+                }
+            }
+
+            override fun onStartTrackingTouch(seekBar: SeekBar?) {
+            }
+
+            override fun onStopTrackingTouch(seekBar: SeekBar?) {
+
+            }
+        })
     }
 
     override fun onPause() {
         super.onPause()
         player.pause()
+
+        job?.cancel()
+        job = null
     }
 
     override fun onResume() {
         super.onResume()
-        player.play()
+        if (player.isPlaying && job == null) {
+            job = upDatePositionJob()
+        }
+    }
+
+    fun Long.toTimeString(): String {
+        val seconds = this / 1000
+        val minutes = seconds / 60
+        val hours = minutes / 60
+
+        val secondsStr = if (seconds % 60 < 10) "0${seconds % 60}" else "${seconds % 60}"
+        val minutesStr = if (minutes % 60 < 10) "0${minutes % 60}" else "${minutes % 60}"
+        val hoursStr = if (hours < 10) "0$hours" else hours.toString()
+
+        return if (hours > 0) "$hoursStr:$minutesStr:$secondsStr" else "$minutesStr:$secondsStr"
     }
 }
\ No newline at end of file

app/src/main/res/drawable/bg_play_pause.xml

+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item android:drawable="@mipmap/bofang" android:state_selected="false" />
+    <item android:drawable="@mipmap/zanting" android:state_selected="true" />
+</selector>
\ No newline at end of file

app/src/main/res/drawable/bg_seekbar_progress.xml

+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <solid android:color="#8C8C8C" />
+    <corners android:radius="2.5dp" />
+    <size android:height="5dp" />
+</shape>
\ No newline at end of file

app/src/main/res/drawable/bg_seekbar_thumb.xml

+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="oval">
+
+    <solid android:color="@color/white" />
+    <size
+        android:width="13dp"
+        android:height="13dp" />
+</shape>
\ No newline at end of file

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

@@ -57,16 +57,51 @@
         app:use_controller="false" />
 
 
-    <FrameLayout
-        android:background="@drawable/bg_1a1a1a_25"
+    <LinearLayout
         android:layout_width="345dp"
         android:layout_height="55dp"
         android:layout_marginBottom="45dp"
+        android:background="@drawable/bg_1a1a1a_25"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent">
 
-    </FrameLayout>
+        <ImageView
+            android:id="@+id/iv_play_pause"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_vertical"
+            android:layout_marginStart="22dp"
+            android:src="@drawable/bg_play_pause"
+            tools:ignore="ContentDescription" />
+
+        <TextView
+            android:id="@+id/tv_current_position"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_vertical"
+            android:layout_marginStart="10dp"
+            android:textColor="@color/white"
+            tools:text="00:00" />
+
+        <SeekBar
+            android:id="@+id/seekbar"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_vertical"
+            android:layout_weight="1"
+            android:progressDrawable="@drawable/bg_seekbar_progress"
+            android:thumb="@drawable/bg_seekbar_thumb" />
+
+        <TextView
+            android:id="@+id/tv_duration"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_vertical"
+            android:layout_marginEnd="20dp"
+            android:textColor="@color/white"
+            tools:text="00:00" />
+    </LinearLayout>
 
 
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file