diff --git a/packages/uni-api/src/protocols/ui/showActionSheet.ts b/packages/uni-api/src/protocols/ui/showActionSheet.ts
index f96d2057f8382c1724d05cae516bd2e7322f7e3a..fee30c342282eef61af5885146cf4ca4cd839e6f 100644
--- a/packages/uni-api/src/protocols/ui/showActionSheet.ts
+++ b/packages/uni-api/src/protocols/ui/showActionSheet.ts
@@ -7,7 +7,7 @@ export const ShowActionSheetProtocol: ApiProtocol<API_TYPE_SHOW_ACTION_SHEET> =
       required: true,
     },
     itemColor: String,
-    // popover: Object,
+    popover: Object,
   }
 export const ShowActionSheetOptions: ApiOptions<API_TYPE_SHOW_ACTION_SHEET> = {
   formatArgs: {
diff --git a/packages/uni-api/src/service/base/eventBus.ts b/packages/uni-api/src/service/base/eventBus.ts
index 75ace632ca30f48fce4b38a90d25b6449fd86d3a..da7b917fcf6629eea0b44023c7bc846b07b454e3 100644
--- a/packages/uni-api/src/service/base/eventBus.ts
+++ b/packages/uni-api/src/service/base/eventBus.ts
@@ -13,94 +13,46 @@ import {
   EmitProtocol,
   OnceProtocol,
 } from '../../protocols/base/eventBus'
+import { Emitter } from '@dcloudio/uni-core'
 
-type EventName = string | number | symbol
-type EventCallback = (...args: any) => any
 type EventStopHandler = () => void
 
-class Emitter {
-  private eventMap: Map<EventName, Array<EventCallback>>
-
-  constructor() {
-    this.eventMap = new Map()
-  }
-
-  on = (name: EventName, callback: EventCallback): EventStopHandler => {
-    if (!this.eventMap.has(name)) {
-      this.eventMap.set(name, [])
-    }
-
-    this.eventMap.get(name)!.push(callback)
-
-    return () => this.off(name, callback)
-  }
-
-  once = (name: EventName, callback: EventCallback): EventStopHandler => {
-    const listener = (...args: any[]) => {
-      this.off(name, listener)
-      callback(...args)
-    }
-
-    this.on(name, listener)
-
-    return () => this.off(name, listener)
-  }
-
-  emit = (name: EventName, ...args: any[]): void => {
-    const cbs = this.eventMap.get(name)
-    if (cbs instanceof Array) {
-      cbs.forEach((cb) => {
-        typeof cb === 'function' && cb(...args)
-      })
-    }
-  }
-
-  off = (names?: EventName | EventName[], callback?: EventCallback): void => {
-    if (!names) {
-      this.eventMap.clear()
-      return
-    }
-    if (!(names instanceof Array)) {
-      names = [names]
-    }
-    if (typeof callback === 'function') {
-      names.forEach((name) => {
-        if (this.eventMap.has(name)) {
-          this.eventMap.set(
-            name,
-            this.eventMap.get(name)!.filter((cb) => cb !== callback)
-          )
-        }
-      })
-    } else {
-      names.forEach((name) => {
-        this.eventMap.delete(name)
-      })
-    }
-  }
-}
-
 const emitter = new Emitter()
 
 export const $on = defineSyncApi<API_TYPE_ON>(
   API_ON,
-  (type, callback): EventStopHandler => emitter.on(type, callback),
+  (name, callback): EventStopHandler => {
+    emitter.on(name, callback)
+
+    return () => emitter.off(name, callback)
+  },
   OnProtocol
 )
 export const $once = defineSyncApi<API_TYPE_ONCE>(
   API_ONCE,
-  (type, callback): EventStopHandler => emitter.once(type, callback),
+  (name, callback): EventStopHandler => {
+    emitter.once(name, callback)
+
+    return () => emitter.off(name, callback)
+  },
   OnceProtocol
 )
 export const $off = defineSyncApi<API_TYPE_OFF>(
   API_OFF,
-  (type, callback) => {
-    emitter.off(type, callback)
+  (name, callback) => {
+    if (!name) {
+      emitter.e = {}
+      return
+    }
+    if (!Array.isArray(name)) name = [name]
+    name.forEach((n) => emitter.off(n, callback))
   },
   OffProtocol
 )
 export const $emit = defineSyncApi<API_TYPE_EMIT>(
   API_EMIT,
-  emitter.emit,
+  (name, ...args: any[]) => {
+    emitter.emit(name, ...args)
+  },
   EmitProtocol
 )
diff --git a/packages/uni-api/src/service/context/canvas.ts b/packages/uni-api/src/service/context/canvas.ts
index 05ab5d7494e9aba36eebd3664a9189d62a0011d1..ccc2bbc19ecb34885ecdf94ad2bb3f8c4d4b3c1b 100644
--- a/packages/uni-api/src/service/context/canvas.ts
+++ b/packages/uni-api/src/service/context/canvas.ts
@@ -795,20 +795,21 @@ export class CanvasContext implements UniApp.CanvasContext {
 
 ;[...methods1, ...methods2].forEach(function (method) {
   function get(method: string) {
-    // @ts-ignore
-    let _this = this as CanvasContext
     switch (method) {
       case 'fill':
       case 'stroke':
         return function () {
-          _this.actions.push({
+          // @ts-ignore
+          this.actions.push({
             method: method + 'Path',
-            data: [..._this.path],
+            // @ts-ignore
+            data: [...this.path],
           })
         }
       case 'fillRect':
         return function (x: number, y: number, width: number, height: number) {
-          _this.actions.push({
+          // @ts-ignore
+          this.actions.push({
             method: 'fillPath',
             data: [
               {
@@ -820,7 +821,8 @@ export class CanvasContext implements UniApp.CanvasContext {
         }
       case 'strokeRect':
         return function (x: number, y: number, width: number, height: number) {
-          _this.actions.push({
+          // @ts-ignore
+          this.actions.push({
             method: 'strokePath',
             data: [
               {
@@ -837,7 +839,8 @@ export class CanvasContext implements UniApp.CanvasContext {
           if (typeof maxWidth === 'number') {
             data.push(maxWidth)
           }
-          _this.actions.push({
+          // @ts-ignore
+          this.actions.push({
             method,
             data,
           })
@@ -864,7 +867,7 @@ export class CanvasContext implements UniApp.CanvasContext {
             dWidth = undefined
             dHeight = undefined
           }
-          let data: ActionsItemData
+          var data
 
           function isNumber(e: any) {
             return typeof e === 'number'
@@ -888,14 +891,16 @@ export class CanvasContext implements UniApp.CanvasContext {
               : isNumber(sWidth) && isNumber(sHeight)
               ? [imageResource, sx, sy, sWidth, sHeight]
               : [imageResource, sx, sy]
-          _this.actions.push({
+          // @ts-ignore
+          this.actions.push({
             method,
             data,
           })
         }
       default:
-        return function (...data: ActionsItemData) {
-          _this.actions.push({
+        return function (...data: any) {
+          // @ts-ignore
+          this.actions.push({
             method,
             data,
           })
@@ -906,32 +911,29 @@ export class CanvasContext implements UniApp.CanvasContext {
 })
 methods3.forEach(function (method) {
   function get(method: string) {
-    // @ts-ignore
-    let _this = this as CanvasContext
     switch (method) {
       case 'setFillStyle':
       case 'setStrokeStyle':
         return function (color: string | Data) {
           if (typeof color !== 'object') {
-            _this.actions.push({
+            // @ts-ignore
+            this.actions.push({
               method,
               data: ['normal', checkColor(color)],
             })
           } else {
-            _this.actions.push({
+            // @ts-ignore
+            this.actions.push({
               method,
-              data: [
-                color.type as ActionsItemType,
-                color.data as ActionsItemType,
-                color.colorStop as ActionsItemType,
-              ],
+              data: [color.type, color.data, color.colorStop],
             })
           }
         }
       case 'setGlobalAlpha':
         return function (alpha: number) {
           alpha = Math.floor(255 * parseFloat(alpha as unknown as string))
-          _this.actions.push({
+          // @ts-ignore
+          this.actions.push({
             method,
             data: [alpha],
           })
@@ -943,41 +945,52 @@ methods3.forEach(function (method) {
           blur: number,
           color: string
         ) {
-          let _color = checkColor(color)
-          _this.actions.push({
+          color = checkColor(color) as any
+          // @ts-ignore
+          this.actions.push({
             method,
             data: [offsetX, offsetY, blur, color],
           })
-          _this.state.shadowBlur = blur
-          _this.state.shadowColor = _color
-          _this.state.shadowOffsetX = offsetX
-          _this.state.shadowOffsetY = offsetY
+          // @ts-ignore
+          this.state.shadowBlur = blur
+          // @ts-ignore
+          this.state.shadowColor = color
+          // @ts-ignore
+          this.state.shadowOffsetX = offsetX
+          // @ts-ignore
+          this.state.shadowOffsetY = offsetY
         }
       case 'setLineDash':
         return function (pattern: Array<number> | undefined, offset: number) {
           pattern = pattern || [0, 0]
           offset = offset || 0
-          _this.actions.push({
+          // @ts-ignore
+          this.actions.push({
             method,
             data: [pattern, offset],
           })
-          _this.state.lineDash = pattern
+          // @ts-ignore
+          this.state.lineDash = pattern
         }
       case 'setFontSize':
         return function (fontSize: number) {
-          _this.state.font = _this.state.font.replace(
+          // @ts-ignore
+          this.state.font = this.state.font.replace(
             /\d+\.?\d*px/,
             fontSize + 'px'
           )
-          _this.state.fontSize = fontSize
-          _this.actions.push({
+          // @ts-ignore
+          this.state.fontSize = fontSize
+          // @ts-ignore
+          this.actions.push({
             method,
             data: [fontSize],
           })
         }
       default:
-        return function (...data: ActionsItemData) {
-          _this.actions.push({
+        return function (...data: any) {
+          // @ts-ignore
+          this.actions.push({
             method,
             data,
           })
diff --git a/packages/uni-core/src/helpers/TinyEmitter.js b/packages/uni-core/src/helpers/TinyEmitter.ts
similarity index 66%
rename from packages/uni-core/src/helpers/TinyEmitter.js
rename to packages/uni-core/src/helpers/TinyEmitter.ts
index c59aa445710e17e89499b5822f5d74c9c7af1b6f..3543b64b7a202ab58370d5f46879c6e506aec2cf 100644
--- a/packages/uni-core/src/helpers/TinyEmitter.js
+++ b/packages/uni-core/src/helpers/TinyEmitter.ts
@@ -1,10 +1,22 @@
-function E() {
+interface E {
+  e: Data
+  on: (name: EventName, callback: EventCallback, ctx?: any) => this
+  once: (name: EventName, callback: EventCallback, ctx?: any) => this
+  emit: (name: EventName, ...args: any[]) => this
+  off: (name: EventName, callback?: EventCallback) => this
+}
+
+const E = function () {
   // Keep this empty so it's easier to inherit from
   // (via https://github.com/lipsmack from https://github.com/scottcorgan/tiny-emitter/issues/3)
-}
+} as unknown as { new (): E }
+
+// export type EventName = string | number | symbol
+export type EventName = string
+export type EventCallback = Function
 
 E.prototype = {
-  on: function (name, callback, ctx) {
+  on: function (name: EventName, callback: EventCallback, ctx?: any) {
     var e = this.e || (this.e = {})
 
     ;(e[name] || (e[name] = [])).push({
@@ -15,7 +27,7 @@ E.prototype = {
     return this
   },
 
-  once: function (name, callback, ctx) {
+  once: function (name: EventName, callback: EventCallback, ctx?: any) {
     var self = this
     function listener() {
       self.off(name, listener)
@@ -26,7 +38,7 @@ E.prototype = {
     return this.on(name, listener, ctx)
   },
 
-  emit: function (name) {
+  emit: function (name: EventName) {
     var data = [].slice.call(arguments, 1)
     var evtArr = ((this.e || (this.e = {}))[name] || []).slice()
     var i = 0
@@ -39,7 +51,7 @@ E.prototype = {
     return this
   },
 
-  off: function (name, callback) {
+  off: function (name: EventName, callback?: EventCallback) {
     var e = this.e || (this.e = {})
     var evts = e[name]
     var liveEvents = []
diff --git a/packages/uni-core/src/helpers/index.ts b/packages/uni-core/src/helpers/index.ts
index d52c8ec9899057e3a09db2b118ceb71a97201366..63d591b8bdd438b77133d8eb51266bad2dab845b 100644
--- a/packages/uni-core/src/helpers/index.ts
+++ b/packages/uni-core/src/helpers/index.ts
@@ -5,3 +5,4 @@ export * from './page'
 export * from './scroll'
 export * from './getRealRoute'
 export * from './callbacks'
+export { default as Emitter } from './TinyEmitter'
diff --git a/packages/uni-h5/dist/uni-h5.cjs.js b/packages/uni-h5/dist/uni-h5.cjs.js
index 0dcd7984ea66acedd6fa9a26d3d6772094f222d2..5c8d3a9757c2d35e379142b438d9c3c4634ac528 100644
--- a/packages/uni-h5/dist/uni-h5.cjs.js
+++ b/packages/uni-h5/dist/uni-h5.cjs.js
@@ -115,8 +115,8 @@ const initI18nVideoMsgsOnce = /* @__PURE__ */ uniShared.once(() => {
     i18n.add(uniI18n.LOCALE_ZH_HANT, normalizeMessages(name, {danmu: "\u5F48\u5E55", volume: "\u97F3\u91CF"}));
   }
 });
-function E() {
-}
+const E = function() {
+};
 E.prototype = {
   on: function(name, callback2, ctx) {
     var e2 = this.e || (this.e = {});
diff --git a/packages/uni-h5/dist/uni-h5.es.js b/packages/uni-h5/dist/uni-h5.es.js
index bdeeb06cf4c11fa52d1af18e4cf68ea2c2797771..525ca5eef0fd88e8abce27c62f8a61d2e6e37d23 100644
--- a/packages/uni-h5/dist/uni-h5.es.js
+++ b/packages/uni-h5/dist/uni-h5.es.js
@@ -188,8 +188,8 @@ const initI18nVideoMsgsOnce = /* @__PURE__ */ once(() => {
     i18n.add(LOCALE_ZH_HANT, normalizeMessages(name, {danmu: "\u5F48\u5E55", volume: "\u97F3\u91CF"}));
   }
 });
-function E() {
-}
+const E = function() {
+};
 E.prototype = {
   on: function(name, callback2, ctx) {
     var e2 = this.e || (this.e = {});
@@ -2010,61 +2010,27 @@ const EmitProtocol = [
     required: true
   }
 ];
-class Emitter {
-  constructor() {
-    this.on = (name, callback2) => {
-      if (!this.eventMap.has(name)) {
-        this.eventMap.set(name, []);
-      }
-      this.eventMap.get(name).push(callback2);
-      return () => this.off(name, callback2);
-    };
-    this.once = (name, callback2) => {
-      const listener2 = (...args) => {
-        this.off(name, listener2);
-        callback2(...args);
-      };
-      this.on(name, listener2);
-      return () => this.off(name, listener2);
-    };
-    this.emit = (name, ...args) => {
-      const cbs = this.eventMap.get(name);
-      if (cbs instanceof Array) {
-        cbs.forEach((cb) => {
-          typeof cb === "function" && cb(...args);
-        });
-      }
-    };
-    this.off = (names, callback2) => {
-      if (!names) {
-        this.eventMap.clear();
-        return;
-      }
-      if (!(names instanceof Array)) {
-        names = [names];
-      }
-      if (typeof callback2 === "function") {
-        names.forEach((name) => {
-          if (this.eventMap.has(name)) {
-            this.eventMap.set(name, this.eventMap.get(name).filter((cb) => cb !== callback2));
-          }
-        });
-      } else {
-        names.forEach((name) => {
-          this.eventMap.delete(name);
-        });
-      }
-    };
-    this.eventMap = new Map();
+const emitter = new E();
+const $on = /* @__PURE__ */ defineSyncApi(API_ON, (name, callback2) => {
+  emitter.on(name, callback2);
+  return () => emitter.off(name, callback2);
+}, OnProtocol);
+const $once = /* @__PURE__ */ defineSyncApi(API_ONCE, (name, callback2) => {
+  emitter.once(name, callback2);
+  return () => emitter.off(name, callback2);
+}, OnceProtocol);
+const $off = /* @__PURE__ */ defineSyncApi(API_OFF, (name, callback2) => {
+  if (!name) {
+    emitter.e = {};
+    return;
   }
-}
-const emitter = new Emitter();
-const $on = /* @__PURE__ */ defineSyncApi(API_ON, (type, callback2) => emitter.on(type, callback2), OnProtocol);
-const $once = /* @__PURE__ */ defineSyncApi(API_ONCE, (type, callback2) => emitter.once(type, callback2), OnceProtocol);
-const $off = /* @__PURE__ */ defineSyncApi(API_OFF, (type, callback2) => {
-  emitter.off(type, callback2);
+  if (!Array.isArray(name))
+    name = [name];
+  name.forEach((n) => emitter.off(n, callback2));
 }, OffProtocol);
-const $emit = /* @__PURE__ */ defineSyncApi(API_EMIT, emitter.emit, EmitProtocol);
+const $emit = /* @__PURE__ */ defineSyncApi(API_EMIT, (name, ...args) => {
+  emitter.emit(name, ...args);
+}, EmitProtocol);
 const validator = [
   {
     name: "id",
@@ -2853,19 +2819,18 @@ class CanvasContext {
 }
 [...methods1, ...methods2].forEach(function(method) {
   function get(method2) {
-    let _this = this;
     switch (method2) {
       case "fill":
       case "stroke":
         return function() {
-          _this.actions.push({
+          this.actions.push({
             method: method2 + "Path",
-            data: [..._this.path]
+            data: [...this.path]
           });
         };
       case "fillRect":
         return function(x, y, width, height) {
-          _this.actions.push({
+          this.actions.push({
             method: "fillPath",
             data: [
               {
@@ -2877,7 +2842,7 @@ class CanvasContext {
         };
       case "strokeRect":
         return function(x, y, width, height) {
-          _this.actions.push({
+          this.actions.push({
             method: "strokePath",
             data: [
               {
@@ -2894,7 +2859,7 @@ class CanvasContext {
           if (typeof maxWidth === "number") {
             data.push(maxWidth);
           }
-          _this.actions.push({
+          this.actions.push({
             method: method2,
             data
           });
@@ -2911,7 +2876,7 @@ class CanvasContext {
             dWidth = void 0;
             dHeight = void 0;
           }
-          let data;
+          var data;
           function isNumber(e2) {
             return typeof e2 === "number";
           }
@@ -2926,14 +2891,14 @@ class CanvasContext {
             dWidth,
             dHeight
           ] : isNumber(sWidth) && isNumber(sHeight) ? [imageResource, sx, sy, sWidth, sHeight] : [imageResource, sx, sy];
-          _this.actions.push({
+          this.actions.push({
             method: method2,
             data
           });
         };
       default:
         return function(...data) {
-          _this.actions.push({
+          this.actions.push({
             method: method2,
             data
           });
@@ -2944,69 +2909,64 @@ class CanvasContext {
 });
 methods3.forEach(function(method) {
   function get(method2) {
-    let _this = this;
     switch (method2) {
       case "setFillStyle":
       case "setStrokeStyle":
         return function(color) {
           if (typeof color !== "object") {
-            _this.actions.push({
+            this.actions.push({
               method: method2,
               data: ["normal", checkColor(color)]
             });
           } else {
-            _this.actions.push({
+            this.actions.push({
               method: method2,
-              data: [
-                color.type,
-                color.data,
-                color.colorStop
-              ]
+              data: [color.type, color.data, color.colorStop]
             });
           }
         };
       case "setGlobalAlpha":
         return function(alpha) {
           alpha = Math.floor(255 * parseFloat(alpha));
-          _this.actions.push({
+          this.actions.push({
             method: method2,
             data: [alpha]
           });
         };
       case "setShadow":
         return function(offsetX, offsetY, blur, color) {
-          let _color = checkColor(color);
-          _this.actions.push({
+          color = checkColor(color);
+          this.actions.push({
             method: method2,
             data: [offsetX, offsetY, blur, color]
           });
-          _this.state.shadowBlur = blur;
-          _this.state.shadowColor = _color;
-          _this.state.shadowOffsetX = offsetX;
-          _this.state.shadowOffsetY = offsetY;
+          this.state.shadowBlur = blur;
+          this.state.shadowColor = color;
+          this.state.shadowOffsetX = offsetX;
+          this.state.shadowOffsetY = offsetY;
         };
       case "setLineDash":
         return function(pattern, offset) {
           pattern = pattern || [0, 0];
           offset = offset || 0;
-          _this.actions.push({
+          this.actions.push({
             method: method2,
             data: [pattern, offset]
           });
-          _this.state.lineDash = pattern;
+          this.state.lineDash = pattern;
         };
       case "setFontSize":
         return function(fontSize) {
-          _this.state.font = _this.state.font.replace(/\d+\.?\d*px/, fontSize + "px");
-          _this.state.fontSize = fontSize;
-          _this.actions.push({
+          this.state.font = this.state.font.replace(/\d+\.?\d*px/, fontSize + "px");
+          this.state.fontSize = fontSize;
+          this.actions.push({
             method: method2,
             data: [fontSize]
           });
         };
       default:
         return function(...data) {
-          _this.actions.push({
+          this.actions.push({
             method: method2,
             data
           });
@@ -3846,7 +3806,8 @@ const ShowActionSheetProtocol = {
     type: Array,
     required: true
   },
-  itemColor: String
+  itemColor: String,
+  popover: Object
 };
 const ShowActionSheetOptions = {
   formatArgs: {