[Feature][XElement][Android] Add video element support

Add a dedicated Android LynxXElement:Video module backed by Media3, including video element registration, PlayerView-based rendering, play/pause/stop/seek UI methods, configurable playback props, and event callbacks for first frame, playing, paused, stopped, timeupdate, ended, looped, buffering, and error states.

Expose the new element through the TS xelement type definitions, wire it into the Android explorer/xelement build, and add an integration demo plus Android E2E cases that exercise playback controls and loop behavior.

Author: usczz

explorer/android/lynx_explorer/build.gradle

@@ -131,6 +131,7 @@ dependencies {
     implementation project(':LynxXElement:Refresh')
     implementation project(':LynxXElement:BlurView')
     implementation project(':LynxXElement:WebView')
+    implementation project(':LynxXElement:Video')
 
     kapt project(':LynxProcessor')
     compileOnly project(':LynxProcessor')

explorer/android/settings.gradle

@@ -66,6 +66,8 @@ include ':LynxXElement:BlurView'
 project(":LynxXElement:BlurView").projectDir = new File(rootProject.projectDir, '../../platform/android/lynx_xelement/lynx_xelement_blur_view')
 include ':LynxXElement:WebView'
 project(":LynxXElement:WebView").projectDir = new File(rootProject.projectDir, '../../platform/android/lynx_xelement/lynx_xelement_webview')
+include ':LynxXElement:Video'
+project(":LynxXElement:Video").projectDir = new File(rootProject.projectDir, '../../platform/android/lynx_xelement/lynx_xelement_video')
 
 include ':ServiceAPI'
 project(':ServiceAPI').projectDir = new File(rootProject.projectDir, '../../platform/android/service_api')

platform/android/lynx_xelement/lynx_xelement/build.gradle

@@ -44,6 +44,7 @@ dependencies {
     implementation project(':LynxXElement:Markdown')
     implementation project(':LynxXElement:BlurView')
     implementation project(':LynxXElement:WebView')
+    implementation project(':LynxXElement:Video')
     implementation 'io.github.scwang90:refresh-layout-kernel:3.0.0-alpha'
     compileOnly project(":LynxAndroid")
     compileOnly project(":LynxProcessor")

platform/android/lynx_xelement/lynx_xelement/src/main/java/com/lynx/xelement/LynxUIVideoAutoRegistry.kt

@@ -0,0 +1,14 @@
+// Copyright 2026 The Lynx Authors. All rights reserved.
+// Licensed under the Apache License Version 2.0 that can be found in the
+// LICENSE file in the root directory of this source tree.
+
+package com.lynx.xelement
+
+import com.lynx.tasm.behavior.LynxBehavior
+import com.lynx.tasm.behavior.LynxContext
+import com.lynx.tasm.behavior.LynxGeneratorName
+import com.lynx.xelement.video.LynxUIVideo
+
+@LynxGeneratorName(packageName = "com.lynx.xelement")
+@LynxBehavior(tagName = ["video"], isCreateAsync = false)
+open class LynxUIVideoAutoRegistry(context: LynxContext) : LynxUIVideo(context) {}

platform/android/lynx_xelement/lynx_xelement_video/build.gradle

@@ -0,0 +1,43 @@
+// Copyright 2026 The Lynx Authors. All rights reserved.
+// Licensed under the Apache License Version 2.0 that can be found in the
+// LICENSE file in the root directory of this source tree.
+apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
+apply from: file("../ext.gradle")
+
+android {
+    compileSdkVersion rootProject.ext.compileSdkVersion
+
+    defaultConfig {
+        minSdkVersion min_sdk_version
+        targetSdkVersion target_sdk_version
+        versionCode 1
+        versionName "1.0"
+        consumerProguardFiles 'consumer-rules.pro'
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation("androidx.media3:media3-exoplayer:1.0.2") {
+        exclude group: 'com.google.guava', module: 'guava'
+    }
+    implementation("androidx.media3:media3-ui:1.0.2") {
+        exclude group: 'com.google.guava', module: 'guava'
+    }
+    implementation 'com.google.guava:guava:31.1-android'
+    compileOnly 'androidx.annotation:annotation:1.1.0'
+}

platform/android/lynx_xelement/lynx_xelement_video/consumer-rules.pro

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.lynx.xelement.video">
+</manifest>