fix: 修复视频播放发热问题 - WebView暂停/销毁、亮度恢复

app/src/main/java/com/videoapp/tv/PlayerActivity.kt

@@ -80,6 +80,12 @@ class PlayerActivity : AppCompatActivity() {
     private var startVolume = 0
     private var maxVolume = 0
     private val indicatorHideHandler = Handler(Looper.getMainLooper())
+    private var savedBrightness = 0f
+    private val webViewClient = object : WebViewClient() {
+        override fun onPageFinished(view: WebView, url: String) {
+            showLoading(false)
+        }
+    }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -104,6 +110,8 @@ class PlayerActivity : AppCompatActivity() {
         resumePosition = if (intent.hasExtra("resume_position")) intent.getLongExtra("resume_position", 0) else null
 
         maxVolume = audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC)
+        savedBrightness = window.attributes.screenBrightness
+        if (savedBrightness < 0) savedBrightness = -1f
 
         btnClose.setOnClickListener { finish() }
 
@@ -324,6 +332,7 @@ class PlayerActivity : AppCompatActivity() {
 
     private fun playWithExoPlayer(url: String) {
         playerWebView.visibility = View.GONE
+        playerWebView.onPause()
         playerView.visibility = View.VISIBLE
         showLoading(false)
 
@@ -345,17 +354,13 @@ class PlayerActivity : AppCompatActivity() {
         stopPositionSaving()
         playerView.visibility = View.GONE
         playerWebView.visibility = View.VISIBLE
+        playerWebView.onResume()
         showLoading(false)
 
         playerWebView.settings.javaScriptEnabled = true
         playerWebView.settings.domStorageEnabled = true
         playerWebView.settings.mediaPlaybackRequiresUserGesture = false
-        playerWebView.webViewClient = object : WebViewClient() {
-            override fun onPageFinished(view: WebView, url: String) {
-                super.onPageFinished(view, url)
-                showLoading(false)
-            }
-        }
+        playerWebView.webViewClient = webViewClient
         playerWebView.loadUrl(url)
     }
 
@@ -465,15 +470,29 @@ class PlayerActivity : AppCompatActivity() {
         super.onPause()
         saveCurrentPosition()
         stopPositionSaving()
+        playerWebView.onPause()
         exoPlayer?.playWhenReady = false
     }
 
+    override fun onResume() {
+        super.onResume()
+        if (playerWebView.visibility == View.VISIBLE) {
+            playerWebView.onResume()
+        }
+    }
+
     override fun onDestroy() {
         super.onDestroy()
         saveCurrentPosition()
         stopPositionSaving()
         hideHandler.removeCallbacks(hideRunnable)
+        indicatorHideHandler.removeCallbacksAndMessages(null)
+        if (savedBrightness >= 0) {
+            window.attributes.screenBrightness = savedBrightness
+        }
         exoPlayer?.release()
         exoPlayer = null
+        playerWebView.stopLoading()
+        playerWebView.destroy()
     }
 }