diff --git a/src/composables/useDeviceDiscovery.js b/src/composables/useDeviceDiscovery.js
new file mode 100644
index 0000000..c46c478
--- /dev/null
+++ b/src/composables/useDeviceDiscovery.js
@@ -0,0 +1,102 @@
+// src/composables/useDeviceDiscovery.js  
+import { nextTick } from 'vue'
+
+/**
+ * 负责连接 multiplex WebSocket，维护 deviceInformation 列表，
+ * 并在设备出现时按顺序调用 initCanvas / initVideoStream / getSize。
+ * 获取设备的ws
+ */
+export function useDeviceDiscovery({
+    deviceInformation,   // ref([])
+    initCanvas,          // (udid) => void
+    initVideoStream,     // (udid, index) => void
+    wsActionsRef,        // () => wsActions (可能一开始是 null)
+    td                   // 你的 useTeardown 实例，可选
+}) {
+    const decoder = new TextDecoder('utf-8')
+
+    function open(url, eitwoBuffer) {
+        const ws = new WebSocket(url)
+        td && td.setMultiplexWS && td.setMultiplexWS(ws) // 交给 teardown 托管
+        ws.binaryType = 'arraybuffer'
+
+        ws.onopen = () => {
+            ws.send(eitwoBuffer) // 请求设备列表
+        }
+
+        ws.onmessage = async (event) => {
+            let data
+            try {
+                // 兼容原逻辑：先解码再清理不可见字符再 JSON 解析
+                data = JSON.parse(decoder.decode(event.data).replace(/[^\x20-\x7F]/g, ''))
+            } catch (e) {
+                console.error('[multiplex] parse error:', e)
+                return
+            }
+
+            if (data.type === 'devicelist') {
+                // 全量刷新
+                deviceInformation.value = []
+                const list = (data.data.list || []).filter(it => it.state === 'device')
+
+                for (let i = 0; i < list.length; i++) {
+                    const item = list[i]
+                    deviceInformation.value.push(item)
+
+                    await nextTick()           // 等 v-for 渲染出 <video>
+                    initCanvas(item.udid)
+                    initVideoStream(item.udid, i)
+
+                    // 延迟拉尺寸（和你原逻辑一致）
+                    setTimeout(() => {
+                        const wsActions = wsActionsRef && wsActionsRef()
+                        wsActions && wsActions.getSize && wsActions.getSize(item.udid, i)
+                    }, 2000)
+                }
+            }
+
+            else if (data.type === 'device') {
+                const d = data.data.device
+
+                if (d.state === 'offline') {
+                    // 移除离线设备
+                    const idx = deviceInformation.value.findIndex(x => x.udid === d.udid)
+                    if (idx !== -1) {
+                        deviceInformation.value.splice(idx, 1)
+                    }
+                }
+
+                else if (d.state === 'device') {
+                    // 新设备上线
+                    const exists = deviceInformation.value.some(x => x.udid === d.udid)
+                    if (!exists) {
+                        deviceInformation.value.push(d)
+                        // 稍等一会再初始化，保持与原代码行为一致
+                        setTimeout(async () => {
+                            try {
+                                const i = deviceInformation.value.length - 1
+                                await nextTick()
+                                initCanvas(d.udid)
+                                initVideoStream(d.udid, i)
+                            } catch (e) {
+                                console.warn('[multiplex] online init failed:', e)
+                            }
+                        }, 1000)
+                    }
+                }
+            }
+        }
+
+        ws.onerror = (e) => {
+            console.error('[multiplex] ws error:', e)
+        }
+
+        ws.onclose = () => {
+            // 可按需在这里做重连；现在保持与原逻辑一致不做自动重连
+        }
+
+        return ws
+    }
+
+    return { open }
+}
diff --git a/src/composables/useTouch.js b/src/composables/useTouch.js
new file mode 100644
index 0000000..bba4f47
--- /dev/null
+++ b/src/composables/useTouch.js
@@ -0,0 +1,109 @@
+// src/composables/useTouch.js  （纯 JS）
+/**
+ * 提供 sleep / tapAt / longPressAt / drag / clickxy 五个工具。
+ * clickxy 内会调用 Back、wsActionsRef、setComText、phoneXYinfoRef。
+ */
+export function useTouch({
+    deviceInformation,   // ref([]) 读取 udid
+    sendPointer,         // 来自 useCanvasPointer
+    wsActionsRef,        // () => wsActions
+    phoneXYinfoRef,      // ref([...]) 内含 id（screen坐标体系的 device id）
+    Back,                // function Back('', index)
+    setComText,          // function setComText(index)
+}) {
+
+    // 小工具：延迟
+    const sleep = (ms) => new Promise(r => setTimeout(r, ms))
+
+    // 轻点
+    async function tapAt(udid, index, x, y, holdMs = 80) {
+        sendPointer(udid, index, 0, x, y)  // down
+        await sleep(holdMs)
+        sendPointer(udid, index, 1, x, y)  // up
+    }
+
+    // 长按
+    async function longPressAt(udid, index, x, y, holdMs = 1500) {
+        sendPointer(udid, index, 0, x, y)  // down
+        await sleep(holdMs)
+        sendPointer(udid, index, 1, x, y)  // up
+    }
+
+    // 拖拽/滑动
+    async function drag(udid, index, x1, y1, x2, y2, durationMs = 300, steps = 8) {
+        sendPointer(udid, index, 0, x1, y1) // down
+        const dx = (x2 - x1) / steps
+        const dy = (y2 - y1) / steps
+        const dt = Math.max(8, Math.floor(durationMs / steps))
+        for (let i = 1; i <= steps; i++) {
+            await sleep(dt)
+            sendPointer(udid, index, 2, Math.round(x1 + dx * i), Math.round(y1 + dy * i)) // move
+        }
+        await sleep(20)
+        sendPointer(udid, index, 1, x2, y2) // up
+    }
+
+    /**
+     * clickxy：统一的“坐标点击”入口，保留你原来的 type 语义：
+     * - type===3：点击 -> 返回 -> 下滑
+     * - type===2：点击 -> 返回 -> 右滑
+     * - type===1：点击评论框后粘贴发送（setComText）
+     * - type===9：长按
+     * - 默认：普通点击
+     */
+    async function clickxy(x, y, index, type) {
+        const dev = deviceInformation.value[index]
+        const wsActions = wsActionsRef && wsActionsRef()
+        if (!dev || !dev.udid) {
+            console.error('clickxy: no udid at index', index)
+            return
+        }
+        const udid = dev.udid
+
+        try {
+            if (type === 3) {
+                await tapAt(udid, index, x, y, 80)
+                await sleep(300)
+                Back('', index)
+                await sleep(300)
+                wsActions && wsActions.slideDown && wsActions.slideDown(phoneXYinfoRef.value[index].id, index)
+                return
+            }
+
+            if (type === 2) {
+                await tapAt(udid, index, x, y, 80)
+                await sleep(300)
+                Back('', index)
+                await sleep(300)
+                wsActions && wsActions.slideRight && wsActions.slideRight(phoneXYinfoRef.value[index].id, index)
+                return
+            }
+
+            if (type === 1) {
+                await tapAt(udid, index, x, y, 80)
+                await sleep(300)
+                setComText(index) // 评论框：粘贴发送
+                return
+            }
+
+            if (type === 9) {
+                await longPressAt(udid, index, x, y, 1500)
+                return
+            }
+
+            // 默认：普通轻点
+            await tapAt(udid, index, x, y, 80)
+
+        } catch (e) {
+            console.error('clickxy error:', e)
+        }
+    }
+
+    return {
+        sleep,
+        tapAt,
+        longPressAt,
+        drag,
+        clickxy,
+    }
+}
diff --git a/src/views/VideoStream.vue b/src/views/VideoStream.vue
index 1a0c3b5..93d0b5b 100644
--- a/src/views/VideoStream.vue
+++ b/src/views/VideoStream.vue
@@ -85,8 +85,9 @@ import HostListManagerDialog from '@/components/HostListManagerDialog.vue'
 import { useMonitor } from '@/composables/useMonitor'
 import { useTeardown } from '@/composables/useTeardown'     //销毁
 import LeftToolbar from '@/components/LeftToolbar.vue' //左侧工具栏
-import { useStreams } from '@/composables/useStreams'
-
+import { useStreams } from '@/composables/useStreams' //视频流处理
+import { useDeviceDiscovery } from '@/composables/useDeviceDiscovery' //设备发现
+import { useTouch } from '@/composables/useTouch' //触摸事件
 const router = useRouter();
 let wsActions = null;
 let userdata = getUser();
@@ -318,7 +319,21 @@ const buttons = [
     }
   }
 ]
-
+//返回上一层
+const Back = (udid, index) => {
+  wslist[index].send(toBufferBtn({ "type": 0, "action": 0, "keycode": 4, "metaState": 0, "repeat": 0 }));
+  wslist[index].send(toBufferBtn({ "type": 0, "action": 1, "keycode": 4, "metaState": 0, "repeat": 0 }));
+}
+//返回首页
+const Home = (udid, index) => {
+  wslist[index].send(toBufferBtn({ "type": 0, "action": 0, "keycode": 3, "metaState": 0, "repeat": 0 }));
+  wslist[index].send(toBufferBtn({ "type": 0, "action": 1, "keycode": 3, "metaState": 0, "repeat": 0 }));
+}
+//任务视图
+const Overview = (udid, index) => {
+  wslist[index].send(toBufferBtn({ "type": 0, "action": 0, "keycode": 187, "metaState": 0, "repeat": 0 }));
+  wslist[index].send(toBufferBtn({ "type": 0, "action": 1, "keycode": 187, "metaState": 0, "repeat": 0 }));
+}
 
 // 建立 monitor
 const {
@@ -347,7 +362,13 @@ const { canvasRef, frameMeta, initCanvas, getCanvasCoordinate, sendPointer } =
     toBuffer,                   // 你已有的工具函数
     getWs: (i) => wslist[i]     // 取对应 index 的 WebSocket
   });
-
+const { sleep, tapAt, longPressAt, drag, clickxy } = useTouch({
+  deviceInformation,
+  sendPointer,
+  wsActionsRef: () => wsActions,
+  phoneXYinfoRef: phoneXYinfo,
+  Back,
+})
 
 // —— 放在变量区（deviceInformation 已经是 ref([])）——
 const pausedDevices = new Set(); // 用 UDID 做键
@@ -379,6 +400,8 @@ const { feedState, pushFrame, resetFeedState, waitForVideoEl, refreshStream } =
   openStr,
   VideoConverter, // 传入页面已引入的构造器，避免在 composable 重复引入
 })
+
+
 //````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````
 // 初始化 手机显示WebSocket 和视频流
 const initVideoStream = async (udid, index) => {
@@ -848,7 +871,13 @@ const initVideoStream = async (udid, index) => {
   //``````````````````````````````````````````````````````````````````````````````````
 };
 
-
+const { open: openDiscovery } = useDeviceDiscovery({
+  deviceInformation,
+  initCanvas,
+  initVideoStream,
+  wsActionsRef: () => wsActions,
+  td
+})
 
 // 鼠标按下事件处理
 const handleCanvasdown = (udid, e, index) => {
@@ -889,21 +918,7 @@ function alignTo(x, a = ALIGN_BASE, mode = ROUND_MODE) {
   /* nearest */         return Math.round(q) * a;
 }
 
-//返回上一层
-const Back = (udid, index) => {
-  wslist[index].send(toBufferBtn({ "type": 0, "action": 0, "keycode": 4, "metaState": 0, "repeat": 0 }));
-  wslist[index].send(toBufferBtn({ "type": 0, "action": 1, "keycode": 4, "metaState": 0, "repeat": 0 }));
-}
-//返回首页
-const Home = (udid, index) => {
-  wslist[index].send(toBufferBtn({ "type": 0, "action": 0, "keycode": 3, "metaState": 0, "repeat": 0 }));
-  wslist[index].send(toBufferBtn({ "type": 0, "action": 1, "keycode": 3, "metaState": 0, "repeat": 0 }));
-}
-//任务视图
-const Overview = (udid, index) => {
-  wslist[index].send(toBufferBtn({ "type": 0, "action": 0, "keycode": 187, "metaState": 0, "repeat": 0 }));
-  wslist[index].send(toBufferBtn({ "type": 0, "action": 1, "keycode": 187, "metaState": 0, "repeat": 0 }));
-}
+
 //回车 index手机下标   state up按下 down抬起      keycode 键
 const key = (index, state, keycode) => {
   // console.log("退格", index)
@@ -1056,87 +1071,7 @@ onUnmounted(() => {
 
 //获取设备信息
 const ObtainDeviceInformation = () => {
-  // 2. 连接 WebSocket
-  const ws = new WebSocket("ws://127.0.0.1:8000/?action=multiplex");
-  td.setMultiplexWS(ws)
-  ws.binaryType = "arraybuffer";
-  ws.onopen = () => {
-    ws.send(eitwo);
-  };
-  // 3. 处理接收到的二进制数据
-  ws.onmessage = async (event) => {
-    const data = JSON.parse(new TextDecoder('utf-8').decode(event.data).replace(/[^\x20-\x7F]/g, ''));
-    try {
-      console.log('数组', data)
-      if (data.type == "devicelist") {
-        deviceInformation.value = [];
-        const filteredList = data.data.list.filter(item => item.state === 'device');
-        //检测到设备列表时，渲染所有设备
-        for (let i = 0; i < filteredList.length; i++) {
-          const item = filteredList[i];
-          deviceInformation.value.push(item);
-          await nextTick();                   // 等 v-for 渲染出 <video>
-          initCanvas(item.udid);              // 如果它也依赖 DOM，同样要在 nextTick 之后
-          initVideoStream(item.udid, i);      // 直接使用循环变量 i
-          // getSize 建议放到 wslist[index].onopen 里最稳，
-          // 若保留延时也可以：
-          setTimeout(() => wsActions?.getSize(item.udid, i), 2000);  // 直接使用循环变量 i
-        }
-      } else if (data.type == "device") {
-        if (data.data.device.state === "offline") {
-          //监听设备信息，出现离线设备，则删除设备信息
-          deviceInformation.value.forEach((item, index) => {
-            if (item.udid === data.data.device.udid) {
-              deviceInformation.value.splice(index, 1);
-              if (index < wslist.length - 1) {
-                deviceInformation.value.forEach((item, index1) => {
-                  //关闭websocket连接
-                  wslist.forEach((item, index) => {
-                    new VideoConvertitem.close();
-                  })
-                  //重新连接websocket
-                  new Promise((resolve, reject) => {
-                    setTimeout(() => {
-                      try {
-                        initVideoStream(item.udid, index1);
-                        initCanvas(item.udid);
-                      } catch (error) {
-                        reject(error);
-                      }
-                    }, 300);
-                  });
-                })
-              }
-              console.log("deviceInformation", deviceInformation.value);
-            }
-          })
-        } else if (data.data.device.state === "device") {
-          let isrepeat = false;
-          //监听设备信息，出现新设备，则添加设备信息
-          deviceInformation.value.forEach((item, index) => {
-            if (item.udid == data.data.device.udid) {
-              isrepeat = true;
-            }
-          })
-          if (!isrepeat) {
-            deviceInformation.value.push(data.data.device);
-            new Promise((resolve, reject) => {
-              setTimeout(() => {
-                try {
-                  initVideoStream(data.data.device.udid, deviceInformation.value.length - 1);
-                  initCanvas(data.data.device.udid);
-                } catch (error) {
-                  // reject(error);
-                }
-              }, 1000);
-            });
-          }
-        };
-      }
-    } catch (e) {
-      console.error(e);
-    }
-  };
+  openDiscovery("ws://127.0.0.1:8000/?action=multiplex", eitwo)
 }
 
 //喜欢-输入评论
@@ -1259,91 +1194,6 @@ function getComArr(index, type) {
 
 
 
-// 小工具
-const sleep = (ms) => new Promise(r => setTimeout(r, ms));
-
-async function tapAt(udid, index, x, y, holdMs = 80) {
-  sendPointer(udid, index, 0, x, y);       // down
-  await sleep(holdMs);
-  sendPointer(udid, index, 1, x, y);       // up
-}
-
-async function longPressAt(udid, index, x, y, holdMs = 1500) {
-  sendPointer(udid, index, 0, x, y);       // down
-  await sleep(holdMs);
-  sendPointer(udid, index, 1, x, y);       // up
-}
-
-/** 可用于自定义滑动/拖拽（如果以后要替代 slideDown/slideRight） */
-async function drag(udid, index, x1, y1, x2, y2, durationMs = 300, steps = 8) {
-  sendPointer(udid, index, 0, x1, y1);     // down
-  const dx = (x2 - x1) / steps;
-  const dy = (y2 - y1) / steps;
-  const dt = Math.max(8, Math.floor(durationMs / steps));
-  for (let i = 1; i <= steps; i++) {
-    await sleep(dt);
-    sendPointer(udid, index, 2, Math.round(x1 + dx * i), Math.round(y1 + dy * i)); // move
-  }
-  await sleep(20);
-  sendPointer(udid, index, 1, x2, y2);     // up
-}
-
-
-// 用 pointer down/up/move 改写后的 clickxy
-async function clickxy(x, y, index, type) {
-  const udid = deviceInformation.value[index].udid;
-  if (!udid) {
-    console.error('clickxy: no udid');
-    return;
-  };
-
-  try {
-    if (type === 3) {
-      // 关注/私信后的返回和下滑
-      await tapAt(udid, index, x, y, 80);
-      await sleep(300);
-      Back('', index);
-      await sleep(300);
-      wsActions.slideDown(phoneXYinfo.value[index].id, index);
-      // 你原代码里这里还有 start(...)，如果没定义会报错；需要的话保留：
-      // await sleep(300);
-      // start(phoneXYinfo.value[index].id, index);
-      return;
-    }
-
-    if (type === 2) {
-      // 评论后的返回和右滑
-      await tapAt(udid, index, x, y, 80);
-      await sleep(300);
-      Back('', index);
-      await sleep(300);
-      wsActions.slideRight(phoneXYinfo.value[index].id, index);
-      return;
-    }
-
-    if (type === 1) {
-      // 评论框点击 -> 粘贴发送
-      await tapAt(udid, index, x, y, 80);
-      await sleep(300);
-      setComText(index);
-      return;
-    }
-
-    if (type === 9) {
-      // 长按
-      await longPressAt(udid, index, x, y, 1500);
-      return;
-    }
-
-    // 默认：普通轻点
-    await tapAt(udid, index, x, y, 80);
-
-  } catch (e) {
-    console.error('clickxy error:', e);
-  }
-}
-
-
 const reload = (opts = {}) => {
   const { onlySelected = false, hard = true } = opts;
   const targets = (onlySelected && selectedDevice.value !== 999)