diff --git a/uitest/ets/ani/ets/@ohos.UiTest.ets b/uitest/ets/ani/ets/@ohos.UiTest.ets
index 31c17cbd0e5dad903baad676d131b2ecf57d182e..cd15a558f2583d90dc82f5c751d1196aaf73c23e 100644
--- a/uitest/ets/ani/ets/@ohos.UiTest.ets
+++ b/uitest/ets/ani/ets/@ohos.UiTest.ets
@@ -276,24 +276,6 @@ export class Component {
       });
       return promise;
     }
-    
-    scrollSearch(on: On):Promise<Component|null> {
-        let promise = new Promise<Component|null>((resolve, reject) => {
-        let promise1 = taskpool.execute(():Component|null => this.scrollSearchSync(on, true, 80));
-            promise1.then((e:NullishType)=>{
-              if (e) {
-                  let value : Component = e as Component;
-                  resolve(value);
-              } else {
-                  resolve(null)
-              }
-            }, (err: Object): void => {
-                let br = err as BusinessError<void>;
-                reject(br);
-            });
-        });
-        return promise;
-      }
   
     pinchIn(scale: double):Promise<void> {
       let promise = new Promise<void>((resolve: (value: PromiseLike<void>) => void, reject: (error: Error) => void) => {
@@ -1380,19 +1362,6 @@ export class Component {
         });
         return promise;
     }
-    
-    mouseScroll(p: Point, down: boolean, d:int, key1?: int, key2?: int): Promise<void> {
-        let promise = new Promise<void>((resolve: (value: PromiseLike<void>) => void, reject: (error: Error) => void) => {
-        let promise1 = taskpool.execute(():boolean => this.mouseScrollSync(p, down, d, key1, key2, 20));
-            promise1.then((e:NullishType)=>{
-                resolve(Promise.resolve());
-            }, (err: Error): void => {
-                let br = err as BusinessError<void>;
-                reject(br);
-            });
-        });
-        return promise;
-    }
 
     mouseScroll(p: Point, down: boolean, d:int, key1?: int, key2?: int, speed?: int): Promise<void> {
         let promise = new Promise<void>((resolve: (value: PromiseLike<void>) => void, reject: (error: Error) => void) => {
@@ -1592,8 +1561,8 @@ export class UIEventObserver {
             this.nativeUIEventObserver = UIEventObserver;
         }
     }
-    native once(type: String, callback: Callback<UIElementInfo>): void;
-
+    native onceToastShow(callback: Callback<UIElementInfo>): void;
+    native onceDialogShow(callback: Callback<UIElementInfo>): void;
 }
 
 export const ON: On = new On();
\ No newline at end of file
diff --git a/uitest/ets/ani/src/uitest_ani.cpp b/uitest/ets/ani/src/uitest_ani.cpp
index be37141a56f62617dfa8a866906f2216a212d313..71383aa623cd67a9830ec058c2621ea622991d6f 100644
--- a/uitest/ets/ani/src/uitest_ani.cpp
+++ b/uitest/ets/ani/src/uitest_ani.cpp
@@ -669,6 +669,7 @@ static ani_boolean BindOn(ani_env *env)
         return false;
     }
     static constexpr const char *SIGNATURE = "C{std.core.String}E{@ohos.UiTest.MatchPattern}:C{@ohos.UiTest.On}";
+
     std::array methods = {
         ani_native_function{"id", SIGNATURE, reinterpret_cast<void *>(id)},
         ani_native_function{"text", nullptr, reinterpret_cast<void *>(text)},
@@ -1605,9 +1606,7 @@ static ani_boolean BindDriver(ani_env *env)
         ani_native_function{"penSwipeSync", nullptr, reinterpret_cast<void *>(penSwipeSync)},
         ani_native_function{"penClickSync", nullptr, reinterpret_cast<void *>(penClickSync)},
         ani_native_function{"penDoubleClickSync", nullptr, reinterpret_cast<void *>(penDoubleClickSync)},
-        ani_native_function{"penLongClickSync",
-            "C{@ohos.UiTest.Point}C{std.core.Double}:z", reinterpret_cast<void *>(penLongClickSync)},
-        ani_native_function{"mouseScrollSync", nullptr, reinterpret_cast<void *>(mouseScrollSync)},
+        ani_native_function{"penLongClickSync", "C{@ohos.UiTest.Point}C{std.core.Double}:z", reinterpret_cast<void *>(penLongClickSync)},        ani_native_function{"mouseScrollSync", nullptr, reinterpret_cast<void *>(mouseScrollSync)},
         ani_native_function{"mouseMoveWithTrackSync", nullptr, reinterpret_cast<void *>(mouseMoveWithTrackSync)},
         ani_native_function{"mouseMoveToSync", nullptr, reinterpret_cast<void *>(mouseMoveToSync)},
         ani_native_function{"mouseDragSync", nullptr, reinterpret_cast<void *>(mouseDragSync)},
@@ -2135,17 +2134,29 @@ static ani_boolean BindComponent(ani_env *env)
     }
     return true;
 }
-static void once(ani_env *env, ani_object obj, ani_string type, ani_object callback)
+static void once(ani_env *env, ani_object obj, nlohmann::json paramList, ani_object callback)
 {
     ApiCallInfo callInfo_;
     ApiReplyInfo reply_;
     callInfo_.callerObjRef_ = aniStringToStdString(env, unwrapp(env, obj, "nativeUIEventObserver"));
     callInfo_.apiId_ = "UIEventObserver.once";
-    callInfo_.paramList_.push_back(aniStringToStdString(env, type));
+    callInfo_.paramList_ = paramList;
     UiEventObserverAni::Get().PreprocessCallOnce(env, callInfo_, obj, callback, reply_);
     Transact(callInfo_, reply_);
     UnmarshalReply(env, callInfo_, reply_);
 }
+static void onceToastShow(ani_env *env, ani_object obj, ani_object callback)
+{    
+    nlohmann::json paramList_ = nlohmann::json::array();
+    paramList_.push_back("toastShow");
+    once(env, obj, paramList_, callback);
+}
+static void onceDialogShow(ani_env *env, ani_object obj, ani_object callback)
+{
+    nlohmann::json paramList_ = nlohmann::json::array();
+    paramList_.push_back("dialogShow");
+    once(env, obj, paramList_, callback);
+}
 static ani_boolean BindUiEventObserver(ani_env *env)
 {
     ani_class cls;
@@ -2154,7 +2165,8 @@ static ani_boolean BindUiEventObserver(ani_env *env)
         return false;
     }
     std::array methods = {
-        ani_native_function{"once", nullptr, reinterpret_cast<void *>(once)},
+        ani_native_function{"onceToastShow", nullptr, reinterpret_cast<void *>(onceToastShow)},
+        ani_native_function{"onceDialogShow", nullptr, reinterpret_cast<void *>(onceDialogShow)},
     };
 
     if (ANI_OK != env->Class_BindNativeMethods(cls, methods.data(), methods.size())) {