diff --git a/hrp/config.go b/hrp/config.go
index 1884368b..99ebcbad 100644
--- a/hrp/config.go
+++ b/hrp/config.go
@@ -5,6 +5,7 @@ import (
 	"time"
 
 	"github.com/httprunner/httprunner/v4/hrp/internal/builtin"
+	"github.com/httprunner/httprunner/v4/hrp/internal/uixt"
 )
 
 // NewConfig returns a new constructed testcase config with specified testcase name.
@@ -29,7 +30,8 @@ type TConfig struct {
 	ParametersSetting *TParamsConfig         `json:"parameters_setting,omitempty" yaml:"parameters_setting,omitempty"`
 	ThinkTimeSetting  *ThinkTimeConfig       `json:"think_time,omitempty" yaml:"think_time,omitempty"`
 	WebSocketSetting  *WebSocketConfig       `json:"websocket,omitempty" yaml:"websocket,omitempty"`
-	IOS               []*WDAOptions          `json:"ios,omitempty" yaml:"ios,omitempty"`
+	IOS               []*uixt.WDAOptions     `json:"ios,omitempty" yaml:"ios,omitempty"`
+	Android           []*uixt.UIAOptions     `json:"android,omitempty" yaml:"android,omitempty"`
 	Timeout           float64                `json:"timeout,omitempty" yaml:"timeout,omitempty"` // global timeout in seconds
 	Export            []string               `json:"export,omitempty" yaml:"export,omitempty"`
 	Weight            int                    `json:"weight,omitempty" yaml:"weight,omitempty"`
@@ -100,8 +102,8 @@ func (c *TConfig) SetWebSocket(times, interval, timeout, size int64) *TConfig {
 	return c
 }
 
-func (c *TConfig) SetIOS(options ...WDAOption) *TConfig {
-	wdaOptions := &WDAOptions{}
+func (c *TConfig) SetIOS(options ...uixt.WDAOption) *TConfig {
+	wdaOptions := &uixt.WDAOptions{}
 	for _, option := range options {
 		option(wdaOptions)
 	}
diff --git a/hrp/internal/uixt/android.go b/hrp/internal/uixt/android.go
new file mode 100644
index 00000000..64c90179
--- /dev/null
+++ b/hrp/internal/uixt/android.go
@@ -0,0 +1 @@
+package uixt
diff --git a/hrp/internal/uixt/drag.go b/hrp/internal/uixt/drag.go
index 0fc7fa64..510b5915 100644
--- a/hrp/internal/uixt/drag.go
+++ b/hrp/internal/uixt/drag.go
@@ -27,6 +27,6 @@ func (dExt *DriverExt) DragOffsetFloat(pathname string, toX, toY, xOffset, yOffs
 	fromX := x + width*xOffset
 	fromY := y + height*yOffset
 
-	return dExt.WebDriver.DragFloat(fromX, fromY, toX, toY,
+	return dExt.Driver.DragFloat(fromX, fromY, toX, toY,
 		gwda.WithPressDuration(pressForDuration[0]))
 }
diff --git a/hrp/internal/uixt/ext.go b/hrp/internal/uixt/ext.go
index d27d3815..76ffc417 100644
--- a/hrp/internal/uixt/ext.go
+++ b/hrp/internal/uixt/ext.go
@@ -2,6 +2,7 @@ package uixt
 
 import (
 	"bytes"
+	"encoding/json"
 	"fmt"
 	"image"
 	"image/jpeg"
@@ -12,12 +13,90 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
+	"time"
 
 	"github.com/electricbubble/gwda"
 	"github.com/pkg/errors"
 	"github.com/rs/zerolog/log"
 )
 
+type MobileMethod string
+
+const (
+	AppInstall          MobileMethod = "install"
+	AppUninstall        MobileMethod = "uninstall"
+	AppStart            MobileMethod = "app_start"
+	AppLaunch           MobileMethod = "app_launch"            // 等待 app 打开并堵塞到 app 首屏加载完成，可以传入 app 的启动参数、环境变量
+	AppLaunchUnattached MobileMethod = "app_launch_unattached" // 只负责通知打开 app，不堵塞等待，不可传入启动参数
+	AppTerminate        MobileMethod = "app_terminate"
+	AppStop             MobileMethod = "app_stop"
+	CtlScreenShot       MobileMethod = "screenshot"
+	CtlSleep            MobileMethod = "sleep"
+	CtlStartCamera      MobileMethod = "camera_start" // alias for app_launch camera
+	CtlStopCamera       MobileMethod = "camera_stop"  // alias for app_terminate camera
+	RecordStart         MobileMethod = "record_start"
+	RecordStop          MobileMethod = "record_stop"
+
+	// UI validation
+	SelectorName       string = "ui_name"
+	SelectorLabel      string = "ui_label"
+	SelectorOCR        string = "ui_ocr"
+	SelectorImage      string = "ui_image"
+	AssertionExists    string = "exists"
+	AssertionNotExists string = "not_exists"
+
+	// UI handling
+	ACTION_Home        MobileMethod = "home"
+	ACTION_TapXY       MobileMethod = "tap_xy"
+	ACTION_TapByOCR    MobileMethod = "tap_ocr"
+	ACTION_TapByCV     MobileMethod = "tap_cv"
+	ACTION_Tap         MobileMethod = "tap"
+	ACTION_DoubleTapXY MobileMethod = "double_tap_xy"
+	ACTION_DoubleTap   MobileMethod = "double_tap"
+	ACTION_Swipe       MobileMethod = "swipe"
+	ACTION_Input       MobileMethod = "input"
+
+	// custom actions
+	ACTION_SwipeToTapApp  MobileMethod = "swipe_to_tap_app"  // swipe left & right to find app and tap
+	ACTION_SwipeToTapText MobileMethod = "swipe_to_tap_text" // swipe up & down to find text and tap
+)
+
+type MobileAction struct {
+	Method MobileMethod `json:"method,omitempty" yaml:"method,omitempty"`
+	Params interface{}  `json:"params,omitempty" yaml:"params,omitempty"`
+
+	Identifier          string `json:"identifier,omitempty" yaml:"identifier,omitempty"`                     // used to identify the action in log
+	MaxRetryTimes       int    `json:"max_retry_times,omitempty" yaml:"max_retry_times,omitempty"`           // max retry times
+	Timeout             int    `json:"timeout,omitempty" yaml:"timeout,omitempty"`                           // TODO: wait timeout in seconds for mobile action
+	IgnoreNotFoundError bool   `json:"ignore_NotFoundError,omitempty" yaml:"ignore_NotFoundError,omitempty"` // ignore error if target element not found
+}
+
+type ActionOption func(o *MobileAction)
+
+func WithIdentifier(identifier string) ActionOption {
+	return func(o *MobileAction) {
+		o.Identifier = identifier
+	}
+}
+
+func WithMaxRetryTimes(maxRetryTimes int) ActionOption {
+	return func(o *MobileAction) {
+		o.MaxRetryTimes = maxRetryTimes
+	}
+}
+
+func WithTimeout(timeout int) ActionOption {
+	return func(o *MobileAction) {
+		o.Timeout = timeout
+	}
+}
+
+func WithIgnoreNotFoundError(ignoreError bool) ActionOption {
+	return func(o *MobileAction) {
+		o.IgnoreNotFoundError = ignoreError
+	}
+}
+
 // TemplateMatchMode is the type of the template matching operation.
 type TemplateMatchMode int
 
@@ -41,27 +120,29 @@ func WithThreshold(threshold float64) CVOption {
 }
 
 type DriverExt struct {
-	gwda.WebDriver
+	Driver          gwda.WebDriver
 	windowSize      gwda.Size
 	frame           *bytes.Buffer
 	doneMjpegStream chan bool
 	scale           float64
 	host            string
+	StartTime       time.Time // used to associate screenshots name
+	ScreenShots     []string  // save screenshots path
 
 	CVArgs
 }
 
 func extend(driver gwda.WebDriver) (dExt *DriverExt, err error) {
-	dExt = &DriverExt{WebDriver: driver}
+	dExt = &DriverExt{Driver: driver}
 	dExt.doneMjpegStream = make(chan bool, 1)
 
 	// get device window size
-	dExt.windowSize, err = dExt.WebDriver.WindowSize()
+	dExt.windowSize, err = dExt.Driver.WindowSize()
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to get windows size")
 	}
 
-	if dExt.scale, err = dExt.Scale(); err != nil {
+	if dExt.scale, err = dExt.Driver.Scale(); err != nil {
 		return nil, err
 	}
 
@@ -129,7 +210,7 @@ func (dExt *DriverExt) takeScreenShot() (raw *bytes.Buffer, err error) {
 	if dExt.frame != nil {
 		return dExt.frame, nil
 	}
-	if raw, err = dExt.WebDriver.Screenshot(); err != nil {
+	if raw, err = dExt.Driver.Screenshot(); err != nil {
 		log.Error().Err(err).Msgf("screenshot failed: %v", err)
 		return nil, err
 	}
@@ -206,7 +287,7 @@ func (dExt *DriverExt) FindUIElement(param string) (ele gwda.WebElement, err err
 		}
 	}
 
-	return dExt.WebDriver.FindElement(selector)
+	return dExt.Driver.FindElement(selector)
 }
 
 func (dExt *DriverExt) FindUIRectInUIKit(search string) (x, y, width, height float64, err error) {
@@ -225,18 +306,18 @@ func (dExt *DriverExt) MappingToRectInUIKit(rect image.Rectangle) (x, y, width,
 }
 
 func (dExt *DriverExt) PerformTouchActions(touchActions *gwda.TouchActions) error {
-	return dExt.PerformAppiumTouchActions(touchActions)
+	return dExt.Driver.PerformAppiumTouchActions(touchActions)
 }
 
 func (dExt *DriverExt) PerformActions(actions *gwda.W3CActions) error {
-	return dExt.PerformW3CActions(actions)
+	return dExt.Driver.PerformW3CActions(actions)
 }
 
 func (dExt *DriverExt) IsNameExist(name string) bool {
 	selector := gwda.BySelector{
 		LinkText: gwda.NewElementAttribute().WithName(name),
 	}
-	_, err := dExt.FindElement(selector)
+	_, err := dExt.Driver.FindElement(selector)
 	return err == nil
 }
 
@@ -244,7 +325,7 @@ func (dExt *DriverExt) IsLabelExist(label string) bool {
 	selector := gwda.BySelector{
 		LinkText: gwda.NewElementAttribute().WithLabel(label),
 	}
-	_, err := dExt.FindElement(selector)
+	_, err := dExt.Driver.FindElement(selector)
 	return err == nil
 }
 
@@ -257,3 +338,225 @@ func (dExt *DriverExt) IsImageExist(text string) bool {
 	_, _, _, _, err := dExt.FindImageRectInUIKit(text)
 	return err == nil
 }
+
+var errActionNotImplemented = errors.New("UI action not implemented")
+
+func (dExt *DriverExt) DoAction(action MobileAction) error {
+	log.Info().Str("method", string(action.Method)).Interface("params", action.Params).Msg("start iOS UI action")
+
+	switch action.Method {
+	case AppInstall:
+		// TODO
+		return errActionNotImplemented
+	case AppLaunch:
+		if bundleId, ok := action.Params.(string); ok {
+			return dExt.Driver.AppLaunch(bundleId)
+		}
+		return fmt.Errorf("invalid %s params, should be bundleId(string), got %v",
+			AppLaunch, action.Params)
+	case AppLaunchUnattached:
+		if bundleId, ok := action.Params.(string); ok {
+			return dExt.Driver.AppLaunchUnattached(bundleId)
+		}
+		return fmt.Errorf("invalid %s params, should be bundleId(string), got %v",
+			AppLaunchUnattached, action.Params)
+	case ACTION_SwipeToTapApp:
+		if appName, ok := action.Params.(string); ok {
+			var x, y, width, height float64
+			findApp := func(d *DriverExt) error {
+				var err error
+				x, y, width, height, err = d.FindTextByOCR(appName)
+				return err
+			}
+			foundAppAction := func(d *DriverExt) error {
+				// click app to launch
+				return d.Driver.TapFloat(x+width*0.5, y+height*0.5-20)
+			}
+
+			// go to home screen
+			if err := dExt.Driver.Homescreen(); err != nil {
+				return errors.Wrap(err, "go to home screen failed")
+			}
+
+			// swipe to first screen
+			for i := 0; i < 5; i++ {
+				dExt.SwipeRight()
+			}
+
+			// default to retry 5 times
+			if action.MaxRetryTimes == 0 {
+				action.MaxRetryTimes = 5
+			}
+			// swipe next screen until app found
+			return dExt.SwipeUntil("left", findApp, foundAppAction, action.MaxRetryTimes)
+		}
+		return fmt.Errorf("invalid %s params, should be app name(string), got %v",
+			ACTION_SwipeToTapApp, action.Params)
+	case ACTION_SwipeToTapText:
+		if text, ok := action.Params.(string); ok {
+			var x, y, width, height float64
+			findText := func(d *DriverExt) error {
+				var err error
+				x, y, width, height, err = d.FindTextByOCR(text)
+				return err
+			}
+			foundTextAction := func(d *DriverExt) error {
+				// tap text
+				return d.Driver.TapFloat(x+width*0.5, y+height*0.5)
+			}
+
+			// default to retry 10 times
+			if action.MaxRetryTimes == 0 {
+				action.MaxRetryTimes = 10
+			}
+			// swipe until live room found
+			return dExt.SwipeUntil("up", findText, foundTextAction, action.MaxRetryTimes)
+		}
+		return fmt.Errorf("invalid %s params, should be app text(string), got %v",
+			ACTION_SwipeToTapText, action.Params)
+	case AppTerminate:
+		if bundleId, ok := action.Params.(string); ok {
+			success, err := dExt.Driver.AppTerminate(bundleId)
+			if err != nil {
+				return errors.Wrap(err, "failed to terminate app")
+			}
+			if !success {
+				log.Warn().Str("bundleId", bundleId).Msg("app was not running")
+			}
+			return nil
+		}
+		return fmt.Errorf("app_terminate params should be bundleId(string), got %v", action.Params)
+	case ACTION_Home:
+		return dExt.Driver.Homescreen()
+	case ACTION_TapXY:
+		if location, ok := action.Params.([]float64); ok {
+			// relative x,y of window size: [0.5, 0.5]
+			if len(location) != 2 {
+				return fmt.Errorf("invalid tap location params: %v", location)
+			}
+			return dExt.TapXY(location[0], location[1], action.Identifier)
+		}
+		return fmt.Errorf("invalid %s params: %v", ACTION_TapXY, action.Params)
+	case ACTION_Tap:
+		if param, ok := action.Params.(string); ok {
+			return dExt.Tap(param, action.Identifier, action.IgnoreNotFoundError)
+		}
+		return fmt.Errorf("invalid %s params: %v", ACTION_Tap, action.Params)
+	case ACTION_TapByOCR:
+		if ocrText, ok := action.Params.(string); ok {
+			return dExt.TapByOCR(ocrText, action.Identifier, action.IgnoreNotFoundError)
+		}
+		return fmt.Errorf("invalid %s params: %v", ACTION_TapByOCR, action.Params)
+	case ACTION_TapByCV:
+		if imagePath, ok := action.Params.(string); ok {
+			return dExt.TapByCV(imagePath, action.Identifier, action.IgnoreNotFoundError)
+		}
+		return fmt.Errorf("invalid %s params: %v", ACTION_TapByCV, action.Params)
+	case ACTION_DoubleTapXY:
+		if location, ok := action.Params.([]float64); ok {
+			// relative x,y of window size: [0.5, 0.5]
+			if len(location) != 2 {
+				return fmt.Errorf("invalid tap location params: %v", location)
+			}
+			return dExt.DoubleTapXY(location[0], location[1])
+		}
+		return fmt.Errorf("invalid %s params: %v", ACTION_DoubleTapXY, action.Params)
+	case ACTION_DoubleTap:
+		if param, ok := action.Params.(string); ok {
+			return dExt.DoubleTap(param)
+		}
+		return fmt.Errorf("invalid %s params: %v", ACTION_DoubleTap, action.Params)
+	case ACTION_Swipe:
+		if positions, ok := action.Params.([]float64); ok {
+			// relative fromX, fromY, toX, toY of window size: [0.5, 0.9, 0.5, 0.1]
+			if len(positions) != 4 {
+				return fmt.Errorf("invalid swipe params [fromX, fromY, toX, toY]: %v", positions)
+			}
+			return dExt.SwipeRelative(
+				positions[0], positions[1], positions[2], positions[3], action.Identifier)
+		}
+		if direction, ok := action.Params.(string); ok {
+			return dExt.SwipeTo(direction, action.Identifier)
+		}
+		return fmt.Errorf("invalid %s params: %v", ACTION_Swipe, action.Params)
+	case ACTION_Input:
+		// input text on current active element
+		// append \n to send text with enter
+		// send \b\b\b to delete 3 chars
+		param := fmt.Sprintf("%v", action.Params)
+		return dExt.Driver.SendKeys(param)
+	case CtlSleep:
+		if param, ok := action.Params.(json.Number); ok {
+			seconds, _ := param.Float64()
+			time.Sleep(time.Duration(seconds*1000) * time.Millisecond)
+			return nil
+		} else if param, ok := action.Params.(float64); ok {
+			time.Sleep(time.Duration(param*1000) * time.Millisecond)
+			return nil
+		}
+		return fmt.Errorf("invalid sleep params: %v(%T)", action.Params, action.Params)
+	case CtlScreenShot:
+		// take snapshot
+		log.Info().Msg("take snapshot for current screen")
+		screenshotPath, err := dExt.ScreenShot(fmt.Sprintf("%d_screenshot_%d",
+			dExt.StartTime.Unix(), time.Now().Unix()))
+		if err != nil {
+			return errors.Wrap(err, "take screenshot failed")
+		}
+		log.Info().Str("path", screenshotPath).Msg("take screenshot")
+		dExt.ScreenShots = append(dExt.ScreenShots, screenshotPath)
+		return err
+	case CtlStartCamera:
+		// start camera, alias for app_launch com.apple.camera
+		return dExt.Driver.AppLaunch("com.apple.camera")
+	case CtlStopCamera:
+		// stop camera, alias for app_terminate com.apple.camera
+		success, err := dExt.Driver.AppTerminate("com.apple.camera")
+		if err != nil {
+			return errors.Wrap(err, "failed to terminate camera")
+		}
+		if !success {
+			log.Warn().Msg("camera was not running")
+		}
+		return nil
+	}
+	return nil
+}
+
+func (dExt *DriverExt) DoValidation(check, assert, expected string, message ...string) bool {
+	var exists bool
+	if assert == AssertionExists {
+		exists = true
+	} else {
+		exists = false
+	}
+	var result bool
+	switch check {
+	case SelectorName:
+		result = (dExt.IsNameExist(expected) == exists)
+	case SelectorLabel:
+		result = (dExt.IsLabelExist(expected) == exists)
+	case SelectorOCR:
+		result = (dExt.IsOCRExist(expected) == exists)
+	case SelectorImage:
+		result = (dExt.IsImageExist(expected) == exists)
+	}
+
+	if !result {
+		if message == nil {
+			message = []string{""}
+		}
+		log.Error().
+			Str("assert", assert).
+			Str("expect", expected).
+			Str("msg", message[0]).
+			Msg("validate UI failed")
+		return false
+	}
+
+	log.Info().
+		Str("assert", assert).
+		Str("expect", expected).
+		Msg("validate UI success")
+	return true
+}
diff --git a/hrp/internal/uixt/interface.go b/hrp/internal/uixt/interface.go
new file mode 100644
index 00000000..b788c6e1
--- /dev/null
+++ b/hrp/internal/uixt/interface.go
@@ -0,0 +1,4 @@
+package uixt
+
+type WebDriver interface {
+}
diff --git a/hrp/internal/uixt/init.go b/hrp/internal/uixt/ios.go
similarity index 93%
rename from hrp/internal/uixt/init.go
rename to hrp/internal/uixt/ios.go
index 4c6b39e7..d79caf27 100644
--- a/hrp/internal/uixt/init.go
+++ b/hrp/internal/uixt/ios.go
@@ -28,6 +28,10 @@ const (
 	dismissAlertButtonSelector = "**/XCUIElementTypeButton[`label IN {'不允许','暂不'}`]"
 )
 
+type Options interface {
+	UUID() string
+}
+
 type WDAOptions struct {
 	UDID      string `json:"udid,omitempty" yaml:"udid,omitempty"`
 	Port      int    `json:"port,omitempty" yaml:"port,omitempty"`
@@ -35,6 +39,10 @@ type WDAOptions struct {
 	LogOn     bool   `json:"log_on,omitempty" yaml:"log_on,omitempty"`
 }
 
+func (o WDAOptions) UUID() string {
+	return o.UDID
+}
+
 type WDAOption func(*WDAOptions)
 
 func WithUDID(udid string) WDAOption {
@@ -100,7 +108,7 @@ func InitWDAClient(options *WDAOptions) (*DriverExt, error) {
 	if err != nil {
 		return nil, errors.Wrap(err, "failed to extend gwda.WebDriver")
 	}
-	settings, err := driverExt.SetAppiumSettings(map[string]interface{}{
+	settings, err := driverExt.Driver.SetAppiumSettings(map[string]interface{}{
 		"snapshotMaxDepth":          snapshotMaxDepth,
 		"acceptAlertButtonSelector": acceptAlertButtonSelector,
 	})
@@ -111,7 +119,7 @@ func InitWDAClient(options *WDAOptions) (*DriverExt, error) {
 
 	driverExt.host = fmt.Sprintf("http://127.0.0.1:%d", targetDevice.Port)
 	if options.LogOn {
-		err = driverExt.StartWDALog("hrp_wda_log")
+		err = driverExt.StartLogRecording("hrp_wda_log")
 		if err != nil {
 			return nil, err
 		}
@@ -125,7 +133,7 @@ type wdaResponse struct {
 	SessionID string `json:"sessionId"`
 }
 
-func (dExt *DriverExt) StartWDALog(identifier string) error {
+func (dExt *DriverExt) StartLogRecording(identifier string) error {
 	log.Info().Msg("start WDA log recording")
 	data := map[string]interface{}{"action": "start", "type": 2, "identifier": identifier}
 	_, err := dExt.triggerWDALog(data)
@@ -136,7 +144,7 @@ func (dExt *DriverExt) StartWDALog(identifier string) error {
 	return nil
 }
 
-func (dExt *DriverExt) GetWDALog() (string, error) {
+func (dExt *DriverExt) GetLogs() (string, error) {
 	log.Info().Msg("stop WDA log recording")
 	data := map[string]interface{}{"action": "stop"}
 	reply, err := dExt.triggerWDALog(data)
diff --git a/hrp/internal/uixt/ocr_test.go b/hrp/internal/uixt/ocr_test.go
index 928b39a2..922c9e0b 100644
--- a/hrp/internal/uixt/ocr_test.go
+++ b/hrp/internal/uixt/ocr_test.go
@@ -14,5 +14,5 @@ func TestDriverExtOCR(t *testing.T) {
 	checkErr(t, err)
 
 	t.Logf("x: %v, y: %v, width: %v, height: %v", x, y, width, height)
-	driverExt.WebDriver.TapFloat(x+width*0.5, y+height*0.5-20)
+	driverExt.Driver.TapFloat(x+width*0.5, y+height*0.5-20)
 }
diff --git a/hrp/internal/uixt/opencv_on.go b/hrp/internal/uixt/opencv_on.go
index 81afe225..326e9277 100644
--- a/hrp/internal/uixt/opencv_on.go
+++ b/hrp/internal/uixt/opencv_on.go
@@ -69,7 +69,7 @@ func (dExt *DriverExt) Debug(dm DebugMode) {
 
 func (dExt *DriverExt) OnlyOnceThreshold(threshold float64) (newExt *DriverExt) {
 	newExt = new(DriverExt)
-	newExt.WebDriver = dExt.WebDriver
+	newExt.Driver = dExt.Driver
 	newExt.scale = dExt.scale
 	newExt.matchMode = dExt.matchMode
 	newExt.threshold = threshold
@@ -78,7 +78,7 @@ func (dExt *DriverExt) OnlyOnceThreshold(threshold float64) (newExt *DriverExt)
 
 func (dExt *DriverExt) OnlyOnceMatchMode(matchMode TemplateMatchMode) (newExt *DriverExt) {
 	newExt = new(DriverExt)
-	newExt.WebDriver = dExt.WebDriver
+	newExt.Driver = dExt.Driver
 	newExt.scale = dExt.scale
 	newExt.matchMode = matchMode
 	newExt.threshold = dExt.threshold
diff --git a/hrp/internal/uixt/swipe.go b/hrp/internal/uixt/swipe.go
index 5454682a..4d29e05b 100644
--- a/hrp/internal/uixt/swipe.go
+++ b/hrp/internal/uixt/swipe.go
@@ -2,6 +2,7 @@ package uixt
 
 import (
 	"fmt"
+	"time"
 
 	"github.com/electricbubble/gwda"
 	"github.com/rs/zerolog/log"
@@ -32,9 +33,9 @@ func (dExt *DriverExt) SwipeRelative(fromX, fromY, toX, toY float64, identifier
 			"enable": true,
 			"data":   identifier[0],
 		})
-		dExt.WebDriver.SwipeFloat(fromX, fromY, toX, toY, option)
+		dExt.Driver.SwipeFloat(fromX, fromY, toX, toY, option)
 	}
-	return dExt.WebDriver.SwipeFloat(fromX, fromY, toX, toY)
+	return dExt.Driver.SwipeFloat(fromX, fromY, toX, toY)
 }
 
 func (dExt *DriverExt) SwipeTo(direction string, identifier ...string) (err error) {
@@ -82,6 +83,8 @@ func (dExt *DriverExt) SwipeUntil(direction string, condition FindCondition, act
 		if err := dExt.SwipeTo(direction); err != nil {
 			log.Error().Err(err).Msgf("swipe %s failed", direction)
 		}
+		// wait for swipe done
+		time.Sleep(500 * time.Millisecond)
 	}
 	return fmt.Errorf("swipe %s %d times, match condition failed", direction, maxTimes)
 }
diff --git a/hrp/internal/uixt/swipe_test.go b/hrp/internal/uixt/swipe_test.go
index 9f4390d6..cb25b76c 100644
--- a/hrp/internal/uixt/swipe_test.go
+++ b/hrp/internal/uixt/swipe_test.go
@@ -16,10 +16,10 @@ func TestSwipeUntil(t *testing.T) {
 	}
 	foundAppAction := func(d *DriverExt) error {
 		// click app, launch douyin
-		return d.TapFloat(x+width*0.5, y+height*0.5-20)
+		return d.Driver.TapFloat(x+width*0.5, y+height*0.5-20)
 	}
 
-	driverExt.Homescreen()
+	driverExt.Driver.Homescreen()
 
 	// swipe to first screen
 	for i := 0; i < 5; i++ {
@@ -37,7 +37,7 @@ func TestSwipeUntil(t *testing.T) {
 	}
 	foundLiveAction := func(d *DriverExt) error {
 		// enter live room
-		return d.TapFloat(x+width*0.5, y+height*0.5)
+		return d.Driver.TapFloat(x+width*0.5, y+height*0.5)
 	}
 
 	// swipe until live room found
diff --git a/hrp/internal/uixt/tap.go b/hrp/internal/uixt/tap.go
index 9a522825..ac6c51fc 100644
--- a/hrp/internal/uixt/tap.go
+++ b/hrp/internal/uixt/tap.go
@@ -12,9 +12,9 @@ func (dExt *DriverExt) tapFloat(x, y float64, identifier string) error {
 			"enable": true,
 			"data":   identifier,
 		})
-		return dExt.WebDriver.TapFloat(x, y, option)
+		return dExt.Driver.TapFloat(x, y, option)
 	}
-	return dExt.WebDriver.TapFloat(x, y)
+	return dExt.Driver.TapFloat(x, y)
 }
 
 func (dExt *DriverExt) TapXY(x, y float64, identifier string) error {
@@ -83,7 +83,7 @@ func (dExt *DriverExt) DoubleTapXY(x, y float64) error {
 
 	x = x * float64(dExt.windowSize.Width)
 	y = y * float64(dExt.windowSize.Height)
-	return dExt.WebDriver.DoubleTapFloat(x, y)
+	return dExt.Driver.DoubleTapFloat(x, y)
 }
 
 func (dExt *DriverExt) DoubleTap(param string) (err error) {
@@ -102,7 +102,7 @@ func (dExt *DriverExt) DoubleTapOffset(param string, xOffset, yOffset float64) (
 		return err
 	}
 
-	return dExt.WebDriver.DoubleTapFloat(x+width*xOffset, y+height*yOffset)
+	return dExt.Driver.DoubleTapFloat(x+width*xOffset, y+height*yOffset)
 }
 
 // TapWithNumber sends one or more taps
diff --git a/hrp/internal/uixt/touch.go b/hrp/internal/uixt/touch.go
index 6c06ae81..fe455507 100644
--- a/hrp/internal/uixt/touch.go
+++ b/hrp/internal/uixt/touch.go
@@ -13,7 +13,7 @@ func (dExt *DriverExt) ForceTouchOffset(pathname string, pressure, xOffset, yOff
 		return err
 	}
 
-	return dExt.ForceTouchFloat(x+width*xOffset, y+height*yOffset, pressure, duration[0])
+	return dExt.Driver.ForceTouchFloat(x+width*xOffset, y+height*yOffset, pressure, duration[0])
 }
 
 func (dExt *DriverExt) TouchAndHold(pathname string, duration ...float64) (err error) {
@@ -29,5 +29,5 @@ func (dExt *DriverExt) TouchAndHoldOffset(pathname string, xOffset, yOffset floa
 		return err
 	}
 
-	return dExt.TouchAndHoldFloat(x+width*xOffset, y+height*yOffset, duration[0])
+	return dExt.Driver.TouchAndHoldFloat(x+width*xOffset, y+height*yOffset, duration[0])
 }
diff --git a/hrp/response.go b/hrp/response.go
index 42c7e9e1..33fe48e7 100644
--- a/hrp/response.go
+++ b/hrp/response.go
@@ -16,6 +16,7 @@ import (
 
 	"github.com/httprunner/httprunner/v4/hrp/internal/builtin"
 	"github.com/httprunner/httprunner/v4/hrp/internal/json"
+	"github.com/httprunner/httprunner/v4/hrp/internal/uixt"
 )
 
 var fieldTags = []string{"proto", "status_code", "headers", "cookies", "body", textExtractorSubRegexp}
@@ -272,3 +273,38 @@ func (v *responseObject) searchRegexp(expr string) interface{} {
 	log.Error().Str("expr", expr).Msg("search regexp failed")
 	return expr
 }
+
+func validateUI(ud *uixt.DriverExt, iValidators []interface{}) (validateResults []*ValidationResult, err error) {
+	for _, iValidator := range iValidators {
+		validator, ok := iValidator.(Validator)
+		if !ok {
+			return nil, errors.New("validator type error")
+		}
+
+		validataResult := &ValidationResult{
+			Validator:   validator,
+			CheckResult: "fail",
+		}
+
+		// parse check value
+		if !strings.HasPrefix(validator.Check, "ui_") {
+			validataResult.CheckResult = "skip"
+			log.Warn().Interface("validator", validator).Msg("skip validator")
+			validateResults = append(validateResults, validataResult)
+			continue
+		}
+
+		expected, ok := validator.Expect.(string)
+		if !ok {
+			return nil, errors.New("validator expect should be string")
+		}
+
+		if !ud.DoValidation(validator.Check, validator.Assert, expected, validator.Message) {
+			return validateResults, errors.New("step validation failed")
+		}
+
+		validataResult.CheckResult = "pass"
+		validateResults = append(validateResults, validataResult)
+	}
+	return validateResults, nil
+}
diff --git a/hrp/runner.go b/hrp/runner.go
index a34783fa..dfb02551 100644
--- a/hrp/runner.go
+++ b/hrp/runner.go
@@ -20,6 +20,7 @@ import (
 
 	"github.com/httprunner/httprunner/v4/hrp/internal/builtin"
 	"github.com/httprunner/httprunner/v4/hrp/internal/sdk"
+	"github.com/httprunner/httprunner/v4/hrp/internal/uixt"
 )
 
 // Run starts to run API test with default configs.
@@ -71,7 +72,7 @@ type HRPRunner struct {
 	httpClient    *http.Client
 	http2Client   *http.Client
 	wsDialer      *websocket.Dialer
-	wdaClients    map[string]*uiDriver // wda client used for iOS UI automation, key is udid
+	uiClients     map[string]*uixt.DriverExt // UI automation clients for iOS and Android, key is udid/serial
 }
 
 // SetClientTransport configures transport of http client for high concurrency load testing
@@ -384,13 +385,19 @@ func (r *testCaseRunner) parseConfig() error {
 	}
 	r.parametersIterator = parametersIterator
 
-	// init iOS WDA clients
+	// init iOS/Android clients
 	for _, iosDeviceConfig := range r.parsedConfig.IOS {
-		_, err := r.hrpRunner.InitWDAClient(iosDeviceConfig)
+		_, err := r.hrpRunner.initUIClient(iosDeviceConfig)
 		if err != nil {
 			return errors.Wrap(err, "init iOS WDA client failed")
 		}
 	}
+	for _, androidDeviceConfig := range r.parsedConfig.Android {
+		_, err := r.hrpRunner.initUIClient(androidDeviceConfig)
+		if err != nil {
+			return errors.Wrap(err, "init Android UIAutomator client failed")
+		}
+	}
 
 	return nil
 }
diff --git a/hrp/session.go b/hrp/session.go
index 359981b7..d640f2f2 100644
--- a/hrp/session.go
+++ b/hrp/session.go
@@ -164,8 +164,8 @@ func (r *SessionRunner) GetSummary() *TestCaseSummary {
 	caseSummary.InOut.ConfigVars = r.parsedConfig.Variables
 
 	logs := make(map[string]string)
-	for udid, client := range r.hrpRunner.wdaClients {
-		log, err := client.GetWDALog()
+	for udid, client := range r.hrpRunner.uiClients {
+		log, err := client.GetLogs()
 		if err != nil {
 			logs[udid] = err.Error()
 		} else {
diff --git a/hrp/step.go b/hrp/step.go
index 02a43262..f3585e40 100644
--- a/hrp/step.go
+++ b/hrp/step.go
@@ -1,5 +1,7 @@
 package hrp
 
+import "github.com/httprunner/httprunner/v4/hrp/internal/uixt"
+
 type StepType string
 
 const (
@@ -14,83 +16,13 @@ const (
 	stepTypeIOS         StepType = "ios"
 )
 
-type MobileMethod string
-
-const (
-	appInstall          MobileMethod = "install"
-	appUninstall        MobileMethod = "uninstall"
-	appStart            MobileMethod = "app_start"
-	appLaunch           MobileMethod = "app_launch"            // 等待 app 打开并堵塞到 app 首屏加载完成，可以传入 app 的启动参数、环境变量
-	appLaunchUnattached MobileMethod = "app_launch_unattached" // 只负责通知打开 app，不堵塞等待，不可传入启动参数
-	appTerminate        MobileMethod = "app_terminate"
-	appStop             MobileMethod = "app_stop"
-	ctlScreenShot       MobileMethod = "screenshot"
-	ctlSleep            MobileMethod = "sleep"
-	ctlStartCamera      MobileMethod = "camera_start" // alias for app_launch camera
-	ctlStopCamera       MobileMethod = "camera_stop"  // alias for app_terminate camera
-	recordStart         MobileMethod = "record_start"
-	recordStop          MobileMethod = "record_stop"
-
-	// UI handling
-	uiHome        MobileMethod = "home"
-	uiTapXY       MobileMethod = "tap_xy"
-	uiTapByOCR    MobileMethod = "tap_ocr"
-	uiTapByCV     MobileMethod = "tap_cv"
-	uiTap         MobileMethod = "tap"
-	uiDoubleTapXY MobileMethod = "double_tap_xy"
-	uiDoubleTap   MobileMethod = "double_tap"
-	uiSwipe       MobileMethod = "swipe"
-	uiInput       MobileMethod = "input"
-
-	// UI validation
-	uiSelectorName     string = "ui_name"
-	uiSelectorLabel    string = "ui_label"
-	uiSelectorOCR      string = "ui_ocr"
-	uiSelectorImage    string = "ui_image"
-	assertionExists    string = "exists"
-	assertionNotExists string = "not_exists"
-
-	// custom actions
-	swipeToTapApp  MobileMethod = "swipe_to_tap_app"  // swipe left & right to find app and tap
-	swipeToTapText MobileMethod = "swipe_to_tap_text" // swipe up & down to find text and tap
+var (
+	WithIdentifier          = uixt.WithIdentifier
+	WithMaxRetryTimes       = uixt.WithMaxRetryTimes
+	WithTimeout             = uixt.WithTimeout
+	WithIgnoreNotFoundError = uixt.WithIgnoreNotFoundError
 )
 
-type MobileAction struct {
-	Method MobileMethod `json:"method,omitempty" yaml:"method,omitempty"`
-	Params interface{}  `json:"params,omitempty" yaml:"params,omitempty"`
-
-	Identifier          string `json:"identifier,omitempty" yaml:"identifier,omitempty"`                     // used to identify the action in log
-	MaxRetryTimes       int    `json:"max_retry_times,omitempty" yaml:"max_retry_times,omitempty"`           // max retry times
-	Timeout             int    `json:"timeout,omitempty" yaml:"timeout,omitempty"`                           // TODO: wait timeout in seconds for mobile action
-	IgnoreNotFoundError bool   `json:"ignore_NotFoundError,omitempty" yaml:"ignore_NotFoundError,omitempty"` // ignore error if target element not found
-}
-
-type ActionOption func(o *MobileAction)
-
-func WithIdentifier(identifier string) ActionOption {
-	return func(o *MobileAction) {
-		o.Identifier = identifier
-	}
-}
-
-func WithMaxRetryTimes(maxRetryTimes int) ActionOption {
-	return func(o *MobileAction) {
-		o.MaxRetryTimes = maxRetryTimes
-	}
-}
-
-func WithTimeout(timeout int) ActionOption {
-	return func(o *MobileAction) {
-		o.Timeout = timeout
-	}
-}
-
-func WithIgnoreNotFoundError(ignoreError bool) ActionOption {
-	return func(o *MobileAction) {
-		o.IgnoreNotFoundError = ignoreError
-	}
-}
-
 type StepResult struct {
 	Name        string                 `json:"name" yaml:"name"`                                   // step name
 	StepType    StepType               `json:"step_type" yaml:"step_type"`                         // step type, testcase/request/transaction/rendezvous
diff --git a/hrp/step_android_ui.go b/hrp/step_android_ui.go
index abc1a9be..b6f44c97 100644
--- a/hrp/step_android_ui.go
+++ b/hrp/step_android_ui.go
@@ -1,11 +1,17 @@
 package hrp
 
-import "fmt"
+import (
+	"fmt"
+	"time"
+
+	"github.com/httprunner/httprunner/v4/hrp/internal/uixt"
+	"github.com/rs/zerolog/log"
+)
 
 type AndroidStep struct {
-	MobileAction
-	Serial  string         `json:"serial,omitempty" yaml:"serial,omitempty"`
-	Actions []MobileAction `json:"actions,omitempty" yaml:"actions,omitempty"`
+	uixt.UIAOptions `yaml:",inline"` // inline refers to https://pkg.go.dev/gopkg.in/yaml.v3#Marshal
+	uixt.MobileAction
+	Actions []uixt.MobileAction `json:"actions,omitempty" yaml:"actions,omitempty"`
 }
 
 // StepAndroid implements IStep interface.
@@ -14,117 +20,117 @@ type StepAndroid struct {
 }
 
 func (s *StepAndroid) Serial(serial string) *StepAndroid {
-	s.step.Android.Serial = serial
+	s.step.Android.SerialNumber = serial
 	return &StepAndroid{step: s.step}
 }
 
 func (s *StepAndroid) InstallApp(path string) *StepAndroid {
-	s.step.Android.Actions = append(s.step.Android.Actions, MobileAction{
-		Method: appInstall,
+	s.step.Android.Actions = append(s.step.Android.Actions, uixt.MobileAction{
+		Method: uixt.AppInstall,
 		Params: path,
 	})
 	return &StepAndroid{step: s.step}
 }
 
 func (s *StepAndroid) StartAppByIntent(activity string) *StepAndroid {
-	s.step.Android.Actions = append(s.step.Android.Actions, MobileAction{
-		Method: appStart,
+	s.step.Android.Actions = append(s.step.Android.Actions, uixt.MobileAction{
+		Method: uixt.AppStart,
 		Params: activity,
 	})
 	return &StepAndroid{step: s.step}
 }
 
 func (s *StepAndroid) StartCamera() *StepAndroid {
-	s.step.Android.Actions = append(s.step.Android.Actions, MobileAction{
-		Method: ctlStartCamera,
+	s.step.Android.Actions = append(s.step.Android.Actions, uixt.MobileAction{
+		Method: uixt.CtlStartCamera,
 		Params: nil,
 	})
 	return &StepAndroid{step: s.step}
 }
 
 func (s *StepAndroid) StopCamera() *StepAndroid {
-	s.step.Android.Actions = append(s.step.Android.Actions, MobileAction{
-		Method: ctlStopCamera,
+	s.step.Android.Actions = append(s.step.Android.Actions, uixt.MobileAction{
+		Method: uixt.CtlStopCamera,
 		Params: nil,
 	})
 	return &StepAndroid{step: s.step}
 }
 
 func (s *StepAndroid) StartRecording() *StepAndroid {
-	s.step.Android.Actions = append(s.step.Android.Actions, MobileAction{
-		Method: recordStart,
+	s.step.Android.Actions = append(s.step.Android.Actions, uixt.MobileAction{
+		Method: uixt.RecordStart,
 		Params: nil,
 	})
 	return &StepAndroid{step: s.step}
 }
 
 func (s *StepAndroid) StopRecording() *StepAndroid {
-	s.step.Android.Actions = append(s.step.Android.Actions, MobileAction{
-		Method: recordStop,
+	s.step.Android.Actions = append(s.step.Android.Actions, uixt.MobileAction{
+		Method: uixt.RecordStop,
 		Params: nil,
 	})
 	return &StepAndroid{step: s.step}
 }
 
 func (s *StepAndroid) Tap(params interface{}) *StepAndroid {
-	s.step.Android.Actions = append(s.step.Android.Actions, MobileAction{
-		Method: uiTap,
+	s.step.Android.Actions = append(s.step.Android.Actions, uixt.MobileAction{
+		Method: uixt.ACTION_Tap,
 		Params: params,
 	})
 	return &StepAndroid{step: s.step}
 }
 
 func (s *StepAndroid) DoubleTap(params interface{}) *StepAndroid {
-	s.step.Android.Actions = append(s.step.Android.Actions, MobileAction{
-		Method: uiDoubleTap,
+	s.step.Android.Actions = append(s.step.Android.Actions, uixt.MobileAction{
+		Method: uixt.ACTION_DoubleTap,
 		Params: params,
 	})
 	return &StepAndroid{step: s.step}
 }
 
 func (s *StepAndroid) Swipe(sx, sy, ex, ey int) *StepAndroid {
-	s.step.Android.Actions = append(s.step.Android.Actions, MobileAction{
-		Method: uiSwipe,
+	s.step.Android.Actions = append(s.step.Android.Actions, uixt.MobileAction{
+		Method: uixt.ACTION_Swipe,
 		Params: []int{sx, sy, ex, ey},
 	})
 	return &StepAndroid{step: s.step}
 }
 
 func (s *StepAndroid) SwipeUp() *StepAndroid {
-	s.step.Android.Actions = append(s.step.Android.Actions, MobileAction{
-		Method: uiSwipe,
+	s.step.Android.Actions = append(s.step.Android.Actions, uixt.MobileAction{
+		Method: uixt.ACTION_Swipe,
 		Params: "up",
 	})
 	return &StepAndroid{step: s.step}
 }
 
 func (s *StepAndroid) SwipeDown() *StepAndroid {
-	s.step.Android.Actions = append(s.step.Android.Actions, MobileAction{
-		Method: uiSwipe,
+	s.step.Android.Actions = append(s.step.Android.Actions, uixt.MobileAction{
+		Method: uixt.ACTION_Swipe,
 		Params: "down",
 	})
 	return &StepAndroid{step: s.step}
 }
 
 func (s *StepAndroid) SwipeLeft() *StepAndroid {
-	s.step.Android.Actions = append(s.step.Android.Actions, MobileAction{
-		Method: uiSwipe,
+	s.step.Android.Actions = append(s.step.Android.Actions, uixt.MobileAction{
+		Method: uixt.ACTION_Swipe,
 		Params: "left",
 	})
 	return &StepAndroid{step: s.step}
 }
 
 func (s *StepAndroid) SwipeRight() *StepAndroid {
-	s.step.Android.Actions = append(s.step.Android.Actions, MobileAction{
-		Method: uiSwipe,
+	s.step.Android.Actions = append(s.step.Android.Actions, uixt.MobileAction{
+		Method: uixt.ACTION_Swipe,
 		Params: "right",
 	})
 	return &StepAndroid{step: s.step}
 }
 
 func (s *StepAndroid) Input(text string) *StepAndroid {
-	s.step.Android.Actions = append(s.step.Android.Actions, MobileAction{
-		Method: uiInput,
+	s.step.Android.Actions = append(s.step.Android.Actions, uixt.MobileAction{
+		Method: uixt.ACTION_Input,
 		Params: text,
 	})
 	return &StepAndroid{step: s.step}
@@ -160,8 +166,8 @@ type StepAndroidValidation struct {
 
 func (s *StepAndroidValidation) AssertNameExists(expectedName string, msg ...string) *StepAndroidValidation {
 	v := Validator{
-		Check:  uiSelectorName,
-		Assert: assertionExists,
+		Check:  uixt.SelectorName,
+		Assert: uixt.AssertionExists,
 		Expect: expectedName,
 	}
 	if len(msg) > 0 {
@@ -175,8 +181,8 @@ func (s *StepAndroidValidation) AssertNameExists(expectedName string, msg ...str
 
 func (s *StepAndroidValidation) AssertNameNotExists(expectedName string, msg ...string) *StepAndroidValidation {
 	v := Validator{
-		Check:  uiSelectorName,
-		Assert: assertionNotExists,
+		Check:  uixt.SelectorName,
+		Assert: uixt.AssertionNotExists,
 		Expect: expectedName,
 	}
 	if len(msg) > 0 {
@@ -204,12 +210,83 @@ func (s *StepAndroidValidation) Run(r *SessionRunner) (*StepResult, error) {
 	return runStepAndroid(r, s.step)
 }
 
-func runStepAndroid(r *SessionRunner, step *TStep) (stepResult *StepResult, err error) {
+func runStepAndroid(s *SessionRunner, step *TStep) (stepResult *StepResult, err error) {
 	stepResult = &StepResult{
 		Name:        step.Name,
 		StepType:    stepTypeAndroid,
 		Success:     false,
 		ContentSize: 0,
 	}
+	screenshots := make([]string, 0)
+
+	// init uiaClient driver
+	uiaClient, err := s.hrpRunner.initUIClient(&step.Android.UIAOptions)
+	if err != nil {
+		return
+	}
+	uiaClient.StartTime = s.startTime
+
+	defer func() {
+		attachments := make(map[string]interface{})
+		if err != nil {
+			attachments["error"] = err.Error()
+		}
+
+		// save attachments
+		screenshots = append(screenshots, uiaClient.ScreenShots...)
+		attachments["screenshots"] = screenshots
+		stepResult.Attachments = attachments
+
+		// update summary
+		s.summary.Records = append(s.summary.Records, stepResult)
+		s.summary.Stat.Total += 1
+		if stepResult.Success {
+			s.summary.Stat.Successes += 1
+		} else {
+			s.summary.Stat.Failures += 1
+			// update summary result to failed
+			s.summary.Success = false
+		}
+	}()
+
+	// prepare actions
+	var actions []uixt.MobileAction
+	if step.Android.Actions == nil {
+		actions = []uixt.MobileAction{
+			{
+				Method: step.Android.Method,
+				Params: step.Android.Params,
+			},
+		}
+	} else {
+		actions = step.Android.Actions
+	}
+
+	// run actions
+	for _, action := range actions {
+		if err := uiaClient.DoAction(action); err != nil {
+			return stepResult, err
+		}
+	}
+
+	// take snapshot
+	screenshotPath, err := uiaClient.ScreenShot(
+		fmt.Sprintf("%d_validate_%d", uiaClient.StartTime.Unix(), time.Now().Unix()))
+	if err != nil {
+		log.Warn().Err(err).Str("step", step.Name).Msg("take screenshot failed")
+	} else {
+		log.Info().Str("path", screenshotPath).Msg("take screenshot before validation")
+		screenshots = append(screenshots, screenshotPath)
+	}
+
+	// validate
+	validateResults, err := validateUI(uiaClient, step.Validators)
+	if err != nil {
+		return
+	}
+	sessionData := newSessionData()
+	sessionData.Validators = validateResults
+	stepResult.Data = sessionData
+	stepResult.Success = true
 	return stepResult, nil
 }
diff --git a/hrp/step_ios_ui.go b/hrp/step_ios_ui.go
index 836e1049..7a6a4327 100644
--- a/hrp/step_ios_ui.go
+++ b/hrp/step_ios_ui.go
@@ -1,22 +1,14 @@
 package hrp
 
 import (
-	"encoding/json"
 	"fmt"
-	"strings"
 	"time"
 
-	"github.com/pkg/errors"
 	"github.com/rs/zerolog/log"
 
 	"github.com/httprunner/httprunner/v4/hrp/internal/uixt"
 )
 
-type (
-	WDAOptions = uixt.WDAOptions
-	WDAOption  = uixt.WDAOption
-)
-
 var (
 	WithUDID      = uixt.WithUDID
 	WithPort      = uixt.WithPort
@@ -25,9 +17,9 @@ var (
 )
 
 type IOSStep struct {
-	WDAOptions   `yaml:",inline"` // inline refers to https://pkg.go.dev/gopkg.in/yaml.v3#Marshal
-	MobileAction `yaml:",inline"`
-	Actions      []MobileAction `json:"actions,omitempty" yaml:"actions,omitempty"`
+	uixt.WDAOptions   `yaml:",inline"` // inline refers to https://pkg.go.dev/gopkg.in/yaml.v3#Marshal
+	uixt.MobileAction `yaml:",inline"`
+	Actions           []uixt.MobileAction `json:"actions,omitempty" yaml:"actions,omitempty"`
 }
 
 // StepIOS implements IStep interface.
@@ -41,49 +33,49 @@ func (s *StepIOS) UDID(udid string) *StepIOS {
 }
 
 func (s *StepIOS) InstallApp(path string) *StepIOS {
-	s.step.IOS.Actions = append(s.step.IOS.Actions, MobileAction{
-		Method: appInstall,
+	s.step.IOS.Actions = append(s.step.IOS.Actions, uixt.MobileAction{
+		Method: uixt.AppInstall,
 		Params: path,
 	})
 	return s
 }
 
 func (s *StepIOS) AppLaunch(bundleId string) *StepIOS {
-	s.step.IOS.Actions = append(s.step.IOS.Actions, MobileAction{
-		Method: appLaunch,
+	s.step.IOS.Actions = append(s.step.IOS.Actions, uixt.MobileAction{
+		Method: uixt.AppLaunch,
 		Params: bundleId,
 	})
 	return s
 }
 
 func (s *StepIOS) AppLaunchUnattached(bundleId string) *StepIOS {
-	s.step.IOS.Actions = append(s.step.IOS.Actions, MobileAction{
-		Method: appLaunchUnattached,
+	s.step.IOS.Actions = append(s.step.IOS.Actions, uixt.MobileAction{
+		Method: uixt.AppLaunchUnattached,
 		Params: bundleId,
 	})
 	return s
 }
 
 func (s *StepIOS) AppTerminate(bundleId string) *StepIOS {
-	s.step.IOS.Actions = append(s.step.IOS.Actions, MobileAction{
-		Method: appTerminate,
+	s.step.IOS.Actions = append(s.step.IOS.Actions, uixt.MobileAction{
+		Method: uixt.AppTerminate,
 		Params: bundleId,
 	})
 	return s
 }
 
 func (s *StepIOS) Home() *StepIOS {
-	s.step.IOS.Actions = append(s.step.IOS.Actions, MobileAction{
-		Method: uiHome,
+	s.step.IOS.Actions = append(s.step.IOS.Actions, uixt.MobileAction{
+		Method: uixt.ACTION_Home,
 		Params: nil,
 	})
 	return &StepIOS{step: s.step}
 }
 
 // TapXY taps the point {X,Y}, X & Y is percentage of coordinates
-func (s *StepIOS) TapXY(x, y float64, options ...ActionOption) *StepIOS {
-	action := MobileAction{
-		Method: uiTapXY,
+func (s *StepIOS) TapXY(x, y float64, options ...uixt.ActionOption) *StepIOS {
+	action := uixt.MobileAction{
+		Method: uixt.ACTION_TapXY,
 		Params: []float64{x, y},
 	}
 	for _, option := range options {
@@ -94,9 +86,9 @@ func (s *StepIOS) TapXY(x, y float64, options ...ActionOption) *StepIOS {
 }
 
 // Tap taps on the target element
-func (s *StepIOS) Tap(params string, options ...ActionOption) *StepIOS {
-	action := MobileAction{
-		Method: uiTap,
+func (s *StepIOS) Tap(params string, options ...uixt.ActionOption) *StepIOS {
+	action := uixt.MobileAction{
+		Method: uixt.ACTION_Tap,
 		Params: params,
 	}
 	for _, option := range options {
@@ -107,9 +99,9 @@ func (s *StepIOS) Tap(params string, options ...ActionOption) *StepIOS {
 }
 
 // Tap taps on the target element by OCR recognition
-func (s *StepIOS) TapByOCR(ocrText string, options ...ActionOption) *StepIOS {
-	action := MobileAction{
-		Method: uiTapByOCR,
+func (s *StepIOS) TapByOCR(ocrText string, options ...uixt.ActionOption) *StepIOS {
+	action := uixt.MobileAction{
+		Method: uixt.ACTION_TapByOCR,
 		Params: ocrText,
 	}
 	for _, option := range options {
@@ -120,9 +112,9 @@ func (s *StepIOS) TapByOCR(ocrText string, options ...ActionOption) *StepIOS {
 }
 
 // Tap taps on the target element by CV recognition
-func (s *StepIOS) TapByCV(imagePath string, options ...ActionOption) *StepIOS {
-	action := MobileAction{
-		Method: uiTapByCV,
+func (s *StepIOS) TapByCV(imagePath string, options ...uixt.ActionOption) *StepIOS {
+	action := uixt.MobileAction{
+		Method: uixt.ACTION_TapByCV,
 		Params: imagePath,
 	}
 	for _, option := range options {
@@ -134,16 +126,16 @@ func (s *StepIOS) TapByCV(imagePath string, options ...ActionOption) *StepIOS {
 
 // DoubleTapXY double taps the point {X,Y}, X & Y is percentage of coordinates
 func (s *StepIOS) DoubleTapXY(x, y float64) *StepIOS {
-	s.step.IOS.Actions = append(s.step.IOS.Actions, MobileAction{
-		Method: uiDoubleTapXY,
+	s.step.IOS.Actions = append(s.step.IOS.Actions, uixt.MobileAction{
+		Method: uixt.ACTION_DoubleTapXY,
 		Params: []float64{x, y},
 	})
 	return &StepIOS{step: s.step}
 }
 
-func (s *StepIOS) DoubleTap(params string, options ...ActionOption) *StepIOS {
-	action := MobileAction{
-		Method: uiDoubleTap,
+func (s *StepIOS) DoubleTap(params string, options ...uixt.ActionOption) *StepIOS {
+	action := uixt.MobileAction{
+		Method: uixt.ACTION_DoubleTap,
 		Params: params,
 	}
 	for _, option := range options {
@@ -153,9 +145,9 @@ func (s *StepIOS) DoubleTap(params string, options ...ActionOption) *StepIOS {
 	return &StepIOS{step: s.step}
 }
 
-func (s *StepIOS) Swipe(sx, sy, ex, ey int, options ...ActionOption) *StepIOS {
-	action := MobileAction{
-		Method: uiSwipe,
+func (s *StepIOS) Swipe(sx, sy, ex, ey int, options ...uixt.ActionOption) *StepIOS {
+	action := uixt.MobileAction{
+		Method: uixt.ACTION_Swipe,
 		Params: []int{sx, sy, ex, ey},
 	}
 	for _, option := range options {
@@ -165,9 +157,9 @@ func (s *StepIOS) Swipe(sx, sy, ex, ey int, options ...ActionOption) *StepIOS {
 	return &StepIOS{step: s.step}
 }
 
-func (s *StepIOS) SwipeUp(options ...ActionOption) *StepIOS {
-	action := MobileAction{
-		Method: uiSwipe,
+func (s *StepIOS) SwipeUp(options ...uixt.ActionOption) *StepIOS {
+	action := uixt.MobileAction{
+		Method: uixt.ACTION_Swipe,
 		Params: "up",
 	}
 	for _, option := range options {
@@ -177,9 +169,9 @@ func (s *StepIOS) SwipeUp(options ...ActionOption) *StepIOS {
 	return &StepIOS{step: s.step}
 }
 
-func (s *StepIOS) SwipeDown(options ...ActionOption) *StepIOS {
-	action := MobileAction{
-		Method: uiSwipe,
+func (s *StepIOS) SwipeDown(options ...uixt.ActionOption) *StepIOS {
+	action := uixt.MobileAction{
+		Method: uixt.ACTION_Swipe,
 		Params: "down",
 	}
 	for _, option := range options {
@@ -189,9 +181,9 @@ func (s *StepIOS) SwipeDown(options ...ActionOption) *StepIOS {
 	return &StepIOS{step: s.step}
 }
 
-func (s *StepIOS) SwipeLeft(options ...ActionOption) *StepIOS {
-	action := MobileAction{
-		Method: uiSwipe,
+func (s *StepIOS) SwipeLeft(options ...uixt.ActionOption) *StepIOS {
+	action := uixt.MobileAction{
+		Method: uixt.ACTION_Swipe,
 		Params: "left",
 	}
 	for _, option := range options {
@@ -201,9 +193,9 @@ func (s *StepIOS) SwipeLeft(options ...ActionOption) *StepIOS {
 	return &StepIOS{step: s.step}
 }
 
-func (s *StepIOS) SwipeRight(options ...ActionOption) *StepIOS {
-	action := MobileAction{
-		Method: uiSwipe,
+func (s *StepIOS) SwipeRight(options ...uixt.ActionOption) *StepIOS {
+	action := uixt.MobileAction{
+		Method: uixt.ACTION_Swipe,
 		Params: "right",
 	}
 	for _, option := range options {
@@ -213,9 +205,9 @@ func (s *StepIOS) SwipeRight(options ...ActionOption) *StepIOS {
 	return &StepIOS{step: s.step}
 }
 
-func (s *StepIOS) SwipeToTapApp(appName string, options ...ActionOption) *StepIOS {
-	action := MobileAction{
-		Method: swipeToTapApp,
+func (s *StepIOS) SwipeToTapApp(appName string, options ...uixt.ActionOption) *StepIOS {
+	action := uixt.MobileAction{
+		Method: uixt.ACTION_SwipeToTapApp,
 		Params: appName,
 	}
 	for _, option := range options {
@@ -225,9 +217,9 @@ func (s *StepIOS) SwipeToTapApp(appName string, options ...ActionOption) *StepIO
 	return &StepIOS{step: s.step}
 }
 
-func (s *StepIOS) SwipeToTapText(text string, options ...ActionOption) *StepIOS {
-	action := MobileAction{
-		Method: swipeToTapText,
+func (s *StepIOS) SwipeToTapText(text string, options ...uixt.ActionOption) *StepIOS {
+	action := uixt.MobileAction{
+		Method: uixt.ACTION_SwipeToTapText,
 		Params: text,
 	}
 	for _, option := range options {
@@ -238,8 +230,8 @@ func (s *StepIOS) SwipeToTapText(text string, options ...ActionOption) *StepIOS
 }
 
 func (s *StepIOS) Input(text string) *StepIOS {
-	s.step.IOS.Actions = append(s.step.IOS.Actions, MobileAction{
-		Method: uiInput,
+	s.step.IOS.Actions = append(s.step.IOS.Actions, uixt.MobileAction{
+		Method: uixt.ACTION_Input,
 		Params: text,
 	})
 	return &StepIOS{step: s.step}
@@ -268,32 +260,32 @@ func (s *StepIOS) Times(n int) *StepIOS {
 
 // Sleep specify sleep seconds after last action
 func (s *StepIOS) Sleep(n float64) *StepIOS {
-	s.step.IOS.Actions = append(s.step.IOS.Actions, MobileAction{
-		Method: ctlSleep,
+	s.step.IOS.Actions = append(s.step.IOS.Actions, uixt.MobileAction{
+		Method: uixt.CtlSleep,
 		Params: n,
 	})
 	return &StepIOS{step: s.step}
 }
 
 func (s *StepIOS) ScreenShot() *StepIOS {
-	s.step.IOS.Actions = append(s.step.IOS.Actions, MobileAction{
-		Method: ctlScreenShot,
+	s.step.IOS.Actions = append(s.step.IOS.Actions, uixt.MobileAction{
+		Method: uixt.CtlScreenShot,
 		Params: nil,
 	})
 	return &StepIOS{step: s.step}
 }
 
 func (s *StepIOS) StartCamera() *StepIOS {
-	s.step.IOS.Actions = append(s.step.IOS.Actions, MobileAction{
-		Method: ctlStartCamera,
+	s.step.IOS.Actions = append(s.step.IOS.Actions, uixt.MobileAction{
+		Method: uixt.CtlStartCamera,
 		Params: nil,
 	})
 	return &StepIOS{step: s.step}
 }
 
 func (s *StepIOS) StopCamera() *StepIOS {
-	s.step.IOS.Actions = append(s.step.IOS.Actions, MobileAction{
-		Method: ctlStopCamera,
+	s.step.IOS.Actions = append(s.step.IOS.Actions, uixt.MobileAction{
+		Method: uixt.CtlStopCamera,
 		Params: nil,
 	})
 	return &StepIOS{step: s.step}
@@ -329,8 +321,8 @@ type StepIOSValidation struct {
 
 func (s *StepIOSValidation) AssertNameExists(expectedName string, msg ...string) *StepIOSValidation {
 	v := Validator{
-		Check:  uiSelectorName,
-		Assert: assertionExists,
+		Check:  uixt.SelectorName,
+		Assert: uixt.AssertionExists,
 		Expect: expectedName,
 	}
 	if len(msg) > 0 {
@@ -344,8 +336,8 @@ func (s *StepIOSValidation) AssertNameExists(expectedName string, msg ...string)
 
 func (s *StepIOSValidation) AssertNameNotExists(expectedName string, msg ...string) *StepIOSValidation {
 	v := Validator{
-		Check:  uiSelectorName,
-		Assert: assertionNotExists,
+		Check:  uixt.SelectorName,
+		Assert: uixt.AssertionNotExists,
 		Expect: expectedName,
 	}
 	if len(msg) > 0 {
@@ -359,8 +351,8 @@ func (s *StepIOSValidation) AssertNameNotExists(expectedName string, msg ...stri
 
 func (s *StepIOSValidation) AssertLabelExists(expectedLabel string, msg ...string) *StepIOSValidation {
 	v := Validator{
-		Check:  uiSelectorLabel,
-		Assert: assertionExists,
+		Check:  uixt.SelectorLabel,
+		Assert: uixt.AssertionExists,
 		Expect: expectedLabel,
 	}
 	if len(msg) > 0 {
@@ -374,8 +366,8 @@ func (s *StepIOSValidation) AssertLabelExists(expectedLabel string, msg ...strin
 
 func (s *StepIOSValidation) AssertLabelNotExists(expectedLabel string, msg ...string) *StepIOSValidation {
 	v := Validator{
-		Check:  uiSelectorLabel,
-		Assert: assertionNotExists,
+		Check:  uixt.SelectorLabel,
+		Assert: uixt.AssertionNotExists,
 		Expect: expectedLabel,
 	}
 	if len(msg) > 0 {
@@ -389,8 +381,8 @@ func (s *StepIOSValidation) AssertLabelNotExists(expectedLabel string, msg ...st
 
 func (s *StepIOSValidation) AssertOCRExists(expectedText string, msg ...string) *StepIOSValidation {
 	v := Validator{
-		Check:  uiSelectorOCR,
-		Assert: assertionExists,
+		Check:  uixt.SelectorOCR,
+		Assert: uixt.AssertionExists,
 		Expect: expectedText,
 	}
 	if len(msg) > 0 {
@@ -404,8 +396,8 @@ func (s *StepIOSValidation) AssertOCRExists(expectedText string, msg ...string)
 
 func (s *StepIOSValidation) AssertOCRNotExists(expectedText string, msg ...string) *StepIOSValidation {
 	v := Validator{
-		Check:  uiSelectorOCR,
-		Assert: assertionNotExists,
+		Check:  uixt.SelectorOCR,
+		Assert: uixt.AssertionNotExists,
 		Expect: expectedText,
 	}
 	if len(msg) > 0 {
@@ -419,8 +411,8 @@ func (s *StepIOSValidation) AssertOCRNotExists(expectedText string, msg ...strin
 
 func (s *StepIOSValidation) AssertImageExists(expectedImagePath string, msg ...string) *StepIOSValidation {
 	v := Validator{
-		Check:  uiSelectorImage,
-		Assert: assertionExists,
+		Check:  uixt.SelectorImage,
+		Assert: uixt.AssertionExists,
 		Expect: expectedImagePath,
 	}
 	if len(msg) > 0 {
@@ -434,8 +426,8 @@ func (s *StepIOSValidation) AssertImageExists(expectedImagePath string, msg ...s
 
 func (s *StepIOSValidation) AssertImageNotExists(expectedImagePath string, msg ...string) *StepIOSValidation {
 	v := Validator{
-		Check:  uiSelectorImage,
-		Assert: assertionNotExists,
+		Check:  uixt.SelectorImage,
+		Assert: uixt.AssertionNotExists,
 		Expect: expectedImagePath,
 	}
 	if len(msg) > 0 {
@@ -463,35 +455,37 @@ func (s *StepIOSValidation) Run(r *SessionRunner) (*StepResult, error) {
 	return runStepIOS(r, s.step)
 }
 
-func (r *HRPRunner) InitWDAClient(options *WDAOptions) (client *uiDriver, err error) {
+func (r *HRPRunner) initUIClient(options uixt.Options) (client *uixt.DriverExt, err error) {
+	uuid := options.UUID()
+
 	// avoid duplicate init
-	if options.UDID == "" && len(r.wdaClients) == 1 {
-		for _, v := range r.wdaClients {
+	if uuid == "" && len(r.uiClients) == 1 {
+		for _, v := range r.uiClients {
 			return v, nil
 		}
 	}
 
 	// avoid duplicate init
-	if options.UDID != "" {
-		if client, ok := r.wdaClients[options.UDID]; ok {
+	if uuid != "" {
+		if client, ok := r.uiClients[uuid]; ok {
 			return client, nil
 		}
 	}
 
-	driverExt, err := uixt.InitWDAClient(options)
+	if wdaOptions, ok := options.(*uixt.WDAOptions); ok {
+		client, err = uixt.InitWDAClient(wdaOptions)
+	} else if uiaOptions, ok := options.(*uixt.UIAOptions); ok {
+		client, err = uixt.InitUIAClient(uiaOptions)
+	}
 	if err != nil {
 		return nil, err
 	}
 
-	client = &uiDriver{
-		DriverExt: *driverExt,
-	}
-
 	// cache wda client
-	if r.wdaClients == nil {
-		r.wdaClients = make(map[string]*uiDriver)
+	if r.uiClients == nil {
+		r.uiClients = make(map[string]*uixt.DriverExt)
 	}
-	r.wdaClients[options.UDID] = client
+	r.uiClients[uuid] = client
 
 	return client, nil
 }
@@ -506,11 +500,11 @@ func runStepIOS(s *SessionRunner, step *TStep) (stepResult *StepResult, err erro
 	screenshots := make([]string, 0)
 
 	// init wdaClient driver
-	wdaClient, err := s.hrpRunner.InitWDAClient(&step.IOS.WDAOptions)
+	wdaClient, err := s.hrpRunner.initUIClient(&step.IOS.WDAOptions)
 	if err != nil {
 		return
 	}
-	wdaClient.startTime = s.startTime
+	wdaClient.StartTime = s.startTime
 
 	defer func() {
 		attachments := make(map[string]interface{})
@@ -519,7 +513,7 @@ func runStepIOS(s *SessionRunner, step *TStep) (stepResult *StepResult, err erro
 		}
 
 		// save attachments
-		screenshots = append(screenshots, wdaClient.screenShots...)
+		screenshots = append(screenshots, wdaClient.ScreenShots...)
 		attachments["screenshots"] = screenshots
 		stepResult.Attachments = attachments
 
@@ -536,9 +530,9 @@ func runStepIOS(s *SessionRunner, step *TStep) (stepResult *StepResult, err erro
 	}()
 
 	// prepare actions
-	var actions []MobileAction
+	var actions []uixt.MobileAction
 	if step.IOS.Actions == nil {
-		actions = []MobileAction{
+		actions = []uixt.MobileAction{
 			{
 				Method: step.IOS.Method,
 				Params: step.IOS.Params,
@@ -550,14 +544,14 @@ func runStepIOS(s *SessionRunner, step *TStep) (stepResult *StepResult, err erro
 
 	// run actions
 	for _, action := range actions {
-		if err := wdaClient.doAction(action); err != nil {
+		if err := wdaClient.DoAction(action); err != nil {
 			return stepResult, err
 		}
 	}
 
 	// take snapshot
-	screenshotPath, err := wdaClient.DriverExt.ScreenShot(
-		fmt.Sprintf("%d_validate_%d", wdaClient.startTime.Unix(), time.Now().Unix()))
+	screenshotPath, err := wdaClient.ScreenShot(
+		fmt.Sprintf("%d_validate_%d", wdaClient.StartTime.Unix(), time.Now().Unix()))
 	if err != nil {
 		log.Warn().Err(err).Str("step", step.Name).Msg("take screenshot failed")
 	} else {
@@ -566,7 +560,7 @@ func runStepIOS(s *SessionRunner, step *TStep) (stepResult *StepResult, err erro
 	}
 
 	// validate
-	validateResults, err := wdaClient.doValidation(step.Validators)
+	validateResults, err := validateUI(wdaClient, step.Validators)
 	if err != nil {
 		return
 	}
@@ -576,257 +570,3 @@ func runStepIOS(s *SessionRunner, step *TStep) (stepResult *StepResult, err erro
 	stepResult.Success = true
 	return stepResult, nil
 }
-
-var errActionNotImplemented = errors.New("UI action not implemented")
-
-type uiDriver struct {
-	uixt.DriverExt
-
-	startTime   time.Time // used to associate screenshots name
-	screenShots []string  // save screenshots path
-}
-
-func (ud *uiDriver) doAction(action MobileAction) error {
-	log.Info().Str("method", string(action.Method)).Interface("params", action.Params).Msg("start iOS UI action")
-
-	switch action.Method {
-	case appInstall:
-		// TODO
-		return errActionNotImplemented
-	case appLaunch:
-		if bundleId, ok := action.Params.(string); ok {
-			return ud.AppLaunch(bundleId)
-		}
-		return fmt.Errorf("invalid %s params, should be bundleId(string), got %v",
-			appLaunch, action.Params)
-	case appLaunchUnattached:
-		if bundleId, ok := action.Params.(string); ok {
-			return ud.AppLaunchUnattached(bundleId)
-		}
-		return fmt.Errorf("invalid %s params, should be bundleId(string), got %v",
-			appLaunchUnattached, action.Params)
-	case swipeToTapApp:
-		if appName, ok := action.Params.(string); ok {
-			var x, y, width, height float64
-			findApp := func(d *uixt.DriverExt) error {
-				var err error
-				x, y, width, height, err = d.FindTextByOCR(appName)
-				return err
-			}
-			foundAppAction := func(d *uixt.DriverExt) error {
-				// click app to launch
-				return d.TapFloat(x+width*0.5, y+height*0.5-20)
-			}
-
-			// go to home screen
-			if err := ud.WebDriver.Homescreen(); err != nil {
-				return errors.Wrap(err, "go to home screen failed")
-			}
-
-			// swipe to first screen
-			for i := 0; i < 5; i++ {
-				ud.SwipeRight()
-			}
-
-			// default to retry 5 times
-			if action.MaxRetryTimes == 0 {
-				action.MaxRetryTimes = 5
-			}
-			// swipe next screen until app found
-			return ud.SwipeUntil("left", findApp, foundAppAction, action.MaxRetryTimes)
-		}
-		return fmt.Errorf("invalid %s params, should be app name(string), got %v",
-			swipeToTapApp, action.Params)
-	case swipeToTapText:
-		if text, ok := action.Params.(string); ok {
-			var x, y, width, height float64
-			findText := func(d *uixt.DriverExt) error {
-				var err error
-				x, y, width, height, err = d.FindTextByOCR(text)
-				return err
-			}
-			foundTextAction := func(d *uixt.DriverExt) error {
-				// tap text
-				return d.TapFloat(x+width*0.5, y+height*0.5)
-			}
-
-			// default to retry 10 times
-			if action.MaxRetryTimes == 0 {
-				action.MaxRetryTimes = 10
-			}
-			// swipe until live room found
-			return ud.SwipeUntil("up", findText, foundTextAction, action.MaxRetryTimes)
-		}
-		return fmt.Errorf("invalid %s params, should be app text(string), got %v",
-			swipeToTapText, action.Params)
-	case appTerminate:
-		if bundleId, ok := action.Params.(string); ok {
-			success, err := ud.AppTerminate(bundleId)
-			if err != nil {
-				return errors.Wrap(err, "failed to terminate app")
-			}
-			if !success {
-				log.Warn().Str("bundleId", bundleId).Msg("app was not running")
-			}
-			return nil
-		}
-		return fmt.Errorf("app_terminate params should be bundleId(string), got %v", action.Params)
-	case uiHome:
-		return ud.Homescreen()
-	case uiTapXY:
-		if location, ok := action.Params.([]float64); ok {
-			// relative x,y of window size: [0.5, 0.5]
-			if len(location) != 2 {
-				return fmt.Errorf("invalid tap location params: %v", location)
-			}
-			return ud.TapXY(location[0], location[1], action.Identifier)
-		}
-		return fmt.Errorf("invalid %s params: %v", uiTapXY, action.Params)
-	case uiTap:
-		if param, ok := action.Params.(string); ok {
-			return ud.Tap(param, action.Identifier, action.IgnoreNotFoundError)
-		}
-		return fmt.Errorf("invalid %s params: %v", uiTap, action.Params)
-	case uiTapByOCR:
-		if ocrText, ok := action.Params.(string); ok {
-			return ud.TapByOCR(ocrText, action.Identifier, action.IgnoreNotFoundError)
-		}
-		return fmt.Errorf("invalid %s params: %v", uiTapByOCR, action.Params)
-	case uiTapByCV:
-		if imagePath, ok := action.Params.(string); ok {
-			return ud.TapByCV(imagePath, action.Identifier, action.IgnoreNotFoundError)
-		}
-		return fmt.Errorf("invalid %s params: %v", uiTapByCV, action.Params)
-	case uiDoubleTapXY:
-		if location, ok := action.Params.([]float64); ok {
-			// relative x,y of window size: [0.5, 0.5]
-			if len(location) != 2 {
-				return fmt.Errorf("invalid tap location params: %v", location)
-			}
-			return ud.DoubleTapXY(location[0], location[1])
-		}
-		return fmt.Errorf("invalid %s params: %v", uiDoubleTapXY, action.Params)
-	case uiDoubleTap:
-		if param, ok := action.Params.(string); ok {
-			return ud.DoubleTap(param)
-		}
-		return fmt.Errorf("invalid %s params: %v", uiDoubleTap, action.Params)
-	case uiSwipe:
-		if positions, ok := action.Params.([]float64); ok {
-			// relative fromX, fromY, toX, toY of window size: [0.5, 0.9, 0.5, 0.1]
-			if len(positions) != 4 {
-				return fmt.Errorf("invalid swipe params [fromX, fromY, toX, toY]: %v", positions)
-			}
-			return ud.SwipeRelative(
-				positions[0], positions[1], positions[2], positions[3], action.Identifier)
-		}
-		if direction, ok := action.Params.(string); ok {
-			return ud.SwipeTo(direction, action.Identifier)
-		}
-		return fmt.Errorf("invalid %s params: %v", uiSwipe, action.Params)
-	case uiInput:
-		// input text on current active element
-		// append \n to send text with enter
-		// send \b\b\b to delete 3 chars
-		param := fmt.Sprintf("%v", action.Params)
-		return ud.SendKeys(param)
-	case ctlSleep:
-		if param, ok := action.Params.(json.Number); ok {
-			seconds, _ := param.Float64()
-			time.Sleep(time.Duration(seconds*1000) * time.Millisecond)
-			return nil
-		} else if param, ok := action.Params.(float64); ok {
-			time.Sleep(time.Duration(param*1000) * time.Millisecond)
-			return nil
-		}
-		return fmt.Errorf("invalid sleep params: %v(%T)", action.Params, action.Params)
-	case ctlScreenShot:
-		// take snapshot
-		log.Info().Msg("take snapshot for current screen")
-		screenshotPath, err := ud.ScreenShot(fmt.Sprintf("%d_screenshot_%d",
-			ud.startTime.Unix(), time.Now().Unix()))
-		if err != nil {
-			return errors.Wrap(err, "take screenshot failed")
-		}
-		log.Info().Str("path", screenshotPath).Msg("take screenshot")
-		ud.screenShots = append(ud.screenShots, screenshotPath)
-		return err
-	case ctlStartCamera:
-		// start camera, alias for app_launch com.apple.camera
-		return ud.AppLaunch("com.apple.camera")
-	case ctlStopCamera:
-		// stop camera, alias for app_terminate com.apple.camera
-		success, err := ud.AppTerminate("com.apple.camera")
-		if err != nil {
-			return errors.Wrap(err, "failed to terminate camera")
-		}
-		if !success {
-			log.Warn().Msg("camera was not running")
-		}
-		return nil
-	}
-	return nil
-}
-
-func (ud *uiDriver) doValidation(iValidators []interface{}) (validateResults []*ValidationResult, err error) {
-	for _, iValidator := range iValidators {
-		validator, ok := iValidator.(Validator)
-		if !ok {
-			return nil, errors.New("validator type error")
-		}
-
-		validataResult := &ValidationResult{
-			Validator:   validator,
-			CheckResult: "fail",
-		}
-
-		// parse check value
-		if !strings.HasPrefix(validator.Check, "ui_") {
-			validataResult.CheckResult = "skip"
-			log.Warn().Interface("validator", validator).Msg("skip validator")
-			validateResults = append(validateResults, validataResult)
-			continue
-		}
-
-		expected, ok := validator.Expect.(string)
-		if !ok {
-			return nil, errors.New("validator expect should be string")
-		}
-
-		var exists bool
-		if validator.Assert == assertionExists {
-			exists = true
-		} else {
-			exists = false
-		}
-		var result bool
-		switch validator.Check {
-		case uiSelectorName:
-			result = (ud.IsNameExist(expected) == exists)
-		case uiSelectorLabel:
-			result = (ud.IsLabelExist(expected) == exists)
-		case uiSelectorOCR:
-			result = (ud.IsOCRExist(expected) == exists)
-		case uiSelectorImage:
-			result = (ud.IsImageExist(expected) == exists)
-		}
-
-		if result {
-			log.Info().
-				Str("assert", validator.Assert).
-				Str("expect", expected).
-				Msg("validate UI success")
-			validataResult.CheckResult = "pass"
-			validateResults = append(validateResults, validataResult)
-		} else {
-			log.Error().
-				Str("assert", validator.Assert).
-				Str("expect", expected).
-				Str("msg", validator.Message).
-				Msg("validate UI failed")
-			validateResults = append(validateResults, validataResult)
-			return validateResults, errors.New("step validation failed")
-		}
-	}
-	return validateResults, nil
-}