4k

app/src/main/java/com/tv/browser/BrowserActivity.kt

@@ -144,10 +144,12 @@ class BrowserActivity : AppCompatActivity(), RemoteControlCallback {
     @Volatile private var contentFilterActive: Boolean = false
 
     /**
-     * 已切到原生 / 外部播放器、网页视频被暂停：期间拒绝网页的子资源请求（shouldInterceptRequest 在后台线程读取）。
+     * 已切到原生 / 外部播放器或退到后台、网页视频被暂停：期间拒绝网页的子资源请求（shouldInterceptRequest 在后台线程读取）。
      * 网页播放器暂停后仍会继续缓冲分片（部分站点还带 P2P 加速），会和原生播放器抢网速；回到本页或打开新页面时解除。
      */
     @Volatile private var webMediaSuspended: Boolean = false
+    /** 当前 Activity 是否处于前台可见状态（onResume ~ onPause），供后台网络拦截与页面完成回调判断是否立即暂停网页媒体 */
+    @Volatile private var isActivityResumed: Boolean = false
 
     /** 防跳转劫持：用户最近一次真实点击的链接与时间（JS 线程写入，UI 线程读取） */
     @Volatile private var lastUserLink: String? = null
@@ -316,10 +318,10 @@ class BrowserActivity : AppCompatActivity(), RemoteControlCallback {
                 request: WebResourceRequest?
             ): WebResourceResponse? {
                 val reqUrl = request?.url?.toString() ?: return null
-                // 原生 / 外部播放器播放中：网页不再加载任何子资源（分片、清单刷新、P2P 回源、广告轮询），把网速留给播放器
+                // 原生 / 外部播放器播放中或已退到后台：网页不再加载任何子资源（分片、清单刷新、P2P 回源、广告轮询），把网速留给播放器或避免后台偷跑
                 if (request.isForMainFrame) {
-                    webMediaSuspended = false
+                    if (isActivityResumed) webMediaSuspended = false
-                } else if (webMediaSuspended) {
+                } else if (webMediaSuspended || !isActivityResumed) {
                     return VideoSnifferHelper.createRejectedResponse()
                 }
                 // 0. 记录请求头，原生播放器回放时使用（Referer / UA 等）
@@ -376,6 +378,10 @@ class BrowserActivity : AppCompatActivity(), RemoteControlCallback {
                 // 强力过滤：隐藏可疑动图 / 色情博彩广告
                 updateContentFilterState(url)
                 if (contentFilterActive) view?.evaluateJavascript(ContentFilterHelper.JS_CONTENT_FILTER, null)
+                if (!isActivityResumed) {
+                    suspendWebMedia()
+                    view?.onPause()
+                }
             }
 
             override fun onPageCommitVisible(view: WebView?, url: String?) {
@@ -385,6 +391,10 @@ class BrowserActivity : AppCompatActivity(), RemoteControlCallback {
                 injectDesktopModeFallback(view)
                 // 新页面首帧可见时再注入一次，尽量在广告图显示前隐藏
                 if (contentFilterActive) view?.evaluateJavascript(ContentFilterHelper.JS_CONTENT_FILTER, null)
+                if (!isActivityResumed) {
+                    suspendWebMedia()
+                    view?.onPause()
+                }
             }
 
             override fun onPageFinished(view: WebView?, url: String?) {
@@ -404,6 +414,10 @@ class BrowserActivity : AppCompatActivity(), RemoteControlCallback {
                 view?.evaluateJavascript(VideoSnifferHelper.JS_SITE_ADAPTER_MACCMS, null)
                 url?.let { injectUserScripts(it) }
                 url?.let { historyRepository.add(it, currentPageTitle.ifEmpty { it }) }
+                if (!isActivityResumed) {
+                    suspendWebMedia()
+                    view?.onPause()
+                }
             }
 
             @Deprecated("Deprecated in Java")
@@ -2554,8 +2568,12 @@ class BrowserActivity : AppCompatActivity(), RemoteControlCallback {
 
     override fun onResume() {
         super.onResume()
-        // 从原生 / 外部播放器回来：恢复网页加载
+        isActivityResumed = true
-        if (::webView.isInitialized) resumeWebMediaIfSuspended()
+        // 从后台或原生 / 外部播放器回来：恢复 WebView 与网页加载
+        if (::webView.isInitialized) {
+            webView.onResume()
+            resumeWebMediaIfSuspended()
+        }
         // 从播放器返回首页时刷新追剧列表（进度 / 下一集）
         if (isOnHomePage && ::binding.isInitialized) updateContinueWatchingBanner()
         // 自愈：回到前台时重新计算光标显示状态
@@ -2563,10 +2581,25 @@ class BrowserActivity : AppCompatActivity(), RemoteControlCallback {
     }
 
     override fun onPause() {
+        isActivityResumed = false
         cancelAutoPlay(markHandled = true)
+        if (::webView.isInitialized) {
+            suspendWebMedia()
+            webView.onPause()
+        }
         super.onPause()
     }
 
+    override fun onStop() {
+        isActivityResumed = false
+        cancelAutoPlay(markHandled = true)
+        if (::webView.isInitialized) {
+            suspendWebMedia()
+            webView.onPause()
+        }
+        super.onStop()
+    }
+
     @Deprecated("Deprecated in Java")
     override fun onBackPressed() {
         // 自动接管播放倒计时中：返回键只取消倒计时

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

@@ -94,6 +94,8 @@ class PlayerActivity : AppCompatActivity() {
     /** 当前片源是否已做过片头检查 / 已触发片尾 */
     private var introChecked = false
     private var outroTriggered = false
+    /** 是否已退到后台（按 Home 键等触发 onPause / onStop，非画中画状态）：防止后台异步解析完成后自动出声播放 */
+    private var isInBackground = false
 
     /** 下一集预解析：独立的后台解析器（VideoResolver 一个实例同时只能解析一个页面） */
     private var preloadResolver: VideoResolver? = null
@@ -250,6 +252,8 @@ class PlayerActivity : AppCompatActivity() {
     private fun initPlayer() {
         val p = ExoPlayer.Builder(this, createRenderersFactory())
             .setLoadControl(PlayerTuning.buildLoadControl())
+            .setAudioAttributes(androidx.media3.common.AudioAttributes.DEFAULT, true)
+            .setHandleAudioBecomingNoisy(true)
             .build()
         p.addAnalyticsListener(diagnostics)
         binding.playerView.player = p
@@ -407,16 +411,20 @@ class PlayerActivity : AppCompatActivity() {
         p.setMediaSource(mediaSource, startPos)
         p.setPlaybackSpeed(speeds[currentSpeedIndex])
         p.prepare()
-        p.playWhenReady = true
+        val canPlayNow = !isInBackground
+        p.playWhenReady = canPlayNow
+        if (!canPlayNow) p.pause()
         if (carried <= 0 && record != null && startPos > 0) showFeedback("已自动续播至 ${record.formatPosition()}")
 
-        Log.d(TAG, "play: ${source.url} hls=${source.isHls} headers=${source.headers.keys}")
+        Log.d(TAG, "play: ${source.url} hls=${source.isHls} canPlayNow=$canPlayNow headers=${source.headers.keys}")
         lastSavedSec = 0
         suppressSave = false
         introChecked = false
         outroTriggered = false
         mainHandler.removeCallbacks(updateProgressRunnable)
-        mainHandler.post(updateProgressRunnable)
+        if (canPlayNow) mainHandler.post(updateProgressRunnable)
+        updatePlayPauseButtonText()
+        updatePauseOverlay()
         updateEpisodeUi()
         showOsdTemporarily()
     }
@@ -456,7 +464,11 @@ class PlayerActivity : AppCompatActivity() {
     private fun handlePlayerError(error: PlaybackException) {
         binding.playerLoading.visibility = View.GONE
         val cause = PlayerSsl.rootCauseText(error)
-        Log.e(TAG, "playback error: ${error.errorCodeName} cause=$cause", error)
+        Log.e(TAG, "playback error: ${error.errorCodeName} cause=$cause inBg=$isInBackground", error)
+        if (isInBackground) {
+            pauseForBackground()
+            return
+        }
         val page = currentPageUrl
         // 证书 / SSL 握手失败：网页会忽略证书错误继续播，原生播放器这里同样放宽后重试一次
         if (PlayerSsl.isSslError(error) && PlayerSsl.enableLenient()) {
@@ -711,6 +723,7 @@ class PlayerActivity : AppCompatActivity() {
     }
 
     private fun maybeSkipOutro(current: Long, duration: Long) {
+        if (isInBackground || player?.isPlaying != true) return
         if (outroTriggered || duration <= 0 || !hasNextEpisode()) return
         val outro = AppSettings.getSkip(this, skipKey()).outroMs
         if (outro <= 0 || outro >= duration) return
@@ -1209,17 +1222,19 @@ class PlayerActivity : AppCompatActivity() {
     override fun onUserLeaveHint() {
         super.onUserLeaveHint()
         val inPip = Build.VERSION.SDK_INT >= Build.VERSION_CODES.N && isInPictureInPictureMode
-        if (!inPip) pauseForBackground()
+        if (!inPip) {
+            isInBackground = true
+            pauseForBackground()
+        }
     }
 
     /** 切到后台时暂停播放，并同步按钮文字 / 暂停浮层，回到前台时保持暂停状态 */
     private fun pauseForBackground() {
         val p = player ?: return
-        if (p.playWhenReady) {
+        p.playWhenReady = false
-            p.pause()
+        p.pause()
-            updatePlayPauseButtonText()
+        updatePlayPauseButtonText()
-            updatePauseOverlay()
+        updatePauseOverlay()
-        }
         saveCurrentProgress()
     }
 
@@ -1431,17 +1446,30 @@ class PlayerActivity : AppCompatActivity() {
 
     override fun onResume() {
         super.onResume()
+        isInBackground = false
         hideSystemUI()
+        if (currentSource != null) {
+            mainHandler.removeCallbacks(updateProgressRunnable)
+            mainHandler.post(updateProgressRunnable)
+        }
     }
 
     override fun onPause() {
         super.onPause()
         val inPip = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) isInPictureInPictureMode else false
-        if (!inPip) pauseForBackground() else saveCurrentProgress()
+        if (!inPip) {
+            isInBackground = true
+            pauseForBackground()
+        } else {
+            saveCurrentProgress()
+        }
     }
 
     override fun onStop() {
         super.onStop()
+        isInBackground = true
+        mainHandler.removeCallbacks(updateProgressRunnable)
+        cancelPreload()
         // 兜底：任何情况下界面完全不可见（含关闭画中画小窗）都暂停，避免后台继续出声
         pauseForBackground()
     }

app/src/main/java/com/tv/browser/VideoSnifferHelper.kt

@@ -325,13 +325,20 @@ object VideoSnifferHelper {
                     };
                 }
             } catch (e) {}
-            // 记录页面里的 hls.js 实例：切到原生播放器时 stopLoad()，否则网页播放器暂停后仍会在后台继续缓冲分片，和原生播放器抢网速
+            // 记录页面里的 hls.js 实例：切到原生播放器或退到后台时 stopLoad()，否则网页播放器暂停后仍会在后台继续缓冲分片，和原生播放器抢网速
             var hlsList = [];
+            var mediaSuspended = false;
             function trackHls(h) {
                 try {
-                    if (!h || hlsList.indexOf(h) >= 0) return;
+                    if (!h) return;
-                    hlsList.push(h);
+                    if (hlsList.indexOf(h) < 0) {
-                    if (hlsList.length > 20) hlsList.shift();
+                        hlsList.push(h);
+                        if (hlsList.length > 20) hlsList.shift();
+                    }
+                    if (mediaSuspended && !h.__tvSuspended && typeof h.stopLoad === 'function') {
+                        h.stopLoad();
+                        h.__tvSuspended = true;
+                    }
                 } catch (e) {}
             }
             function wrapHls(H) {
@@ -372,6 +379,27 @@ object VideoSnifferHelper {
                     });
                 }
             } catch (e) {}
+            try {
+                var origPlay = HTMLMediaElement.prototype.play;
+                if (typeof origPlay === 'function') {
+                    HTMLMediaElement.prototype.play = function() {
+                        if (mediaSuspended) {
+                            try { this.pause(); } catch (_) {}
+                            return window.Promise ? Promise.resolve() : undefined;
+                        }
+                        return origPlay.apply(this, arguments);
+                    };
+                }
+                function onMediaPlay(ev) {
+                    if (!mediaSuspended) return;
+                    var t = ev && ev.target;
+                    if (t && typeof t.pause === 'function') {
+                        try { t.pause(); } catch (_) {}
+                    }
+                }
+                document.addEventListener('play', onMediaPlay, true);
+                document.addEventListener('playing', onMediaPlay, true);
+            } catch (e) {}
             try {
                 window.addEventListener('message', function(e) {
                     try {
@@ -379,6 +407,7 @@ object VideoSnifferHelper {
                         if (!data || (data.__tvcmd !== 'pause' && data.__tvcmd !== 'resume')) return;
                         var i;
                         if (data.__tvcmd === 'pause') {
+                            mediaSuspended = true;
                             var vs = document.querySelectorAll('video,audio');
                             for (i = 0; i < vs.length; i++) { try { vs[i].pause(); } catch (_) {} }
                             // 暂停后 hls.js 仍会缓冲到上限（不少站点设到几分钟），停止加载，回到网页时再恢复
@@ -386,6 +415,7 @@ object VideoSnifferHelper {
                                 try { if (!hlsList[i].__tvSuspended) { hlsList[i].stopLoad(); hlsList[i].__tvSuspended = true; } } catch (_) {}
                             }
                         } else {
+                            mediaSuspended = false;
                             for (i = 0; i < hlsList.length; i++) {
                                 try { if (hlsList[i].__tvSuspended) { hlsList[i].__tvSuspended = false; hlsList[i].startLoad(); } } catch (_) {}
                             }
@@ -408,7 +438,13 @@ object VideoSnifferHelper {
                 for (var k = 0; k < fs.length; k++) { try { pauseIn(fs[k].contentDocument); } catch (e) {} }
             }
             try { pauseIn(document); } catch (e) {}
-            try { window.postMessage({ __tvcmd: 'pause' }, '*'); } catch (e) {}
+            var cmd = { __tvcmd: 'pause' };
+            try { window.postMessage(cmd, '*'); } catch (e) {}
+            try {
+                for (var j = 0; j < window.frames.length; j++) {
+                    try { window.frames[j].postMessage(cmd, '*'); } catch (e) {}
+                }
+            } catch (e) {}
         })();
     """.trimIndent()
 

app/src/main/java/com/tv/browser/VideoWebActivity.kt

@@ -1,9 +1,8 @@
 package com.tv.browser
 
 import android.annotation.SuppressLint
-import android.content.Intent
 import android.os.Bundle
-import android.webkit.WebSettings
+import android.view.ViewGroup
 import android.webkit.WebView
 import androidx.appcompat.app.AppCompatActivity
 import com.tv.browser.databinding.ActivityVideoWebBinding
@@ -13,10 +12,12 @@ import com.tv.browser.databinding.ActivityVideoWebBinding
  */
 class VideoWebActivity : AppCompatActivity() {
 
+    private lateinit var binding: ActivityVideoWebBinding
+
     @SuppressLint("SetJavaScriptEnabled")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        val binding = ActivityVideoWebBinding.inflate(layoutInflater)
+        binding = ActivityVideoWebBinding.inflate(layoutInflater)
         setContentView(binding.root)
 
         val url = intent.getStringExtra(EXTRA_VIDEO_URL) ?: ""
@@ -59,6 +60,44 @@ class VideoWebActivity : AppCompatActivity() {
         )
     }
 
+    override fun onResume() {
+        super.onResume()
+        if (::binding.isInitialized) {
+            binding.webView.onResume()
+        }
+    }
+
+    override fun onPause() {
+        if (::binding.isInitialized) {
+            try {
+                binding.webView.evaluateJavascript(VideoSnifferHelper.JS_PAUSE_ALL_MEDIA, null)
+                binding.webView.onPause()
+            } catch (_: Exception) { }
+        }
+        super.onPause()
+    }
+
+    override fun onStop() {
+        if (::binding.isInitialized) {
+            try {
+                binding.webView.evaluateJavascript(VideoSnifferHelper.JS_PAUSE_ALL_MEDIA, null)
+                binding.webView.onPause()
+            } catch (_: Exception) { }
+        }
+        super.onStop()
+    }
+
+    override fun onDestroy() {
+        if (::binding.isInitialized) {
+            try {
+                binding.webView.stopLoading()
+                (binding.webView.parent as? ViewGroup)?.removeView(binding.webView)
+                binding.webView.destroy()
+            } catch (_: Exception) { }
+        }
+        super.onDestroy()
+    }
+
     private fun escapeHtmlAttr(s: String): String {
         return s.replace("&", "&")
             .replace("\"", """)