feat(web): 添加系统相册操作功能

- 新增 GalleryJavascriptInterface 实现相册相关JS接口
- 新增 GalleryUtils 工具类支持图片/视频添加到相册
- 支持 Android 10+ 新存储框架的相册操作
- 实现从相册删除媒体文件功能
- 在 HttpJavascriptInterface 中集成下载文件到相册选项
- 添加相册操作结果回调和错误处理机制

Author: Ven

API_REFERENCE.md

@@ -22,6 +22,7 @@ import com.ven.assists.utils.runMain
 import com.ven.assists.web.filesystem.PathJavascriptInterface
 import com.ven.assists.web.filesystem.fileio.FileIOJavascriptInterface
 import com.ven.assists.web.filesystem.fileutils.FileUtilsJavascriptInterface
+import com.ven.assists.web.gallery.GalleryJavascriptInterface
 import com.ven.assists.web.network.HttpJavascriptInterface
 import com.ven.assists.web.ime.ImeJavascriptInterface
 import com.ven.assists.web.imageutils.ImageUtilsJavascriptInterface
@@ -121,6 +122,7 @@ open class ASWebView @JvmOverloads constructor(
     val httpJavascriptInterface = HttpJavascriptInterface(webView = this)
     val imeJavascriptInterface = ImeJavascriptInterface(webView = this)
     val imageUtilsJavascriptInterface = ImageUtilsJavascriptInterface(webView = this)
+    val galleryJavascriptInterface = GalleryJavascriptInterface(webView = this)
 
 
     val assistsServiceListener = object : AssistsServiceListener {
@@ -220,6 +222,7 @@ open class ASWebView @JvmOverloads constructor(
         addJavascriptInterface(httpJavascriptInterface, "assistsxHttp")
         addJavascriptInterface(imeJavascriptInterface, "assistsxIme")
         addJavascriptInterface(imageUtilsJavascriptInterface, "assistsxImageUtils")
+        addJavascriptInterface(galleryJavascriptInterface, "assistsxGallery")
         AssistsService.listeners.add(assistsServiceListener)
     }
 

assists-web/src/main/java/com/ven/assists/web/ASWebView.kt

@@ -0,0 +1,10 @@
+package com.ven.assists.web.gallery
+
+/**
+ * 系统相册相关的方法常量定义
+ */
+object GalleryCallMethod {
+    const val addImageToGallery = "addImageToGallery"
+    const val addVideoToGallery = "addVideoToGallery"
+    const val deleteFromGallery = "deleteFromGallery"
+}