diff --git a/hrp/pkg/uixt/android_adb_driver.go b/hrp/pkg/uixt/android_adb_driver.go
index cec901b5..94686fe9 100644
--- a/hrp/pkg/uixt/android_adb_driver.go
+++ b/hrp/pkg/uixt/android_adb_driver.go
@@ -295,8 +295,21 @@ func (ad *adbDriver) DoubleTap(x, y int) error {
 }
 
 func (ad *adbDriver) DoubleTapFloat(x, y float64) (err error) {
-	err = errDriverNotImplemented
-	return
+	// adb shell input tap x y
+	xStr := fmt.Sprintf("%.1f", x)
+	yStr := fmt.Sprintf("%.1f", y)
+	_, err = ad.adbClient.RunShellCommand(
+		"input", "tap", xStr, yStr)
+	if err != nil {
+		return errors.Wrap(err, fmt.Sprintf("tap <%s, %s> failed", xStr, yStr))
+	}
+	time.Sleep(time.Duration(100) * time.Millisecond)
+	_, err = ad.adbClient.RunShellCommand(
+		"input", "tap", xStr, yStr)
+	if err != nil {
+		return errors.Wrap(err, fmt.Sprintf("tap <%s, %s> failed", xStr, yStr))
+	}
+	return nil
 }
 
 func (ad *adbDriver) TouchAndHold(x, y int, second ...float64) (err error) {
diff --git a/hrp/pkg/uixt/android_device.go b/hrp/pkg/uixt/android_device.go
index 87c54671..61e3bd5b 100644
--- a/hrp/pkg/uixt/android_device.go
+++ b/hrp/pkg/uixt/android_device.go
@@ -195,10 +195,6 @@ func (dev *AndroidDevice) Init() error {
 	return nil
 }
 
-func (dev *AndroidDevice) System() string {
-	return "android"
-}
-
 func (dev *AndroidDevice) UUID() string {
 	return dev.SerialNumber
 }
diff --git a/hrp/pkg/uixt/android_uia2_driver.go b/hrp/pkg/uixt/android_uia2_driver.go
index c7d7056e..b5747fb5 100644
--- a/hrp/pkg/uixt/android_uia2_driver.go
+++ b/hrp/pkg/uixt/android_uia2_driver.go
@@ -286,6 +286,32 @@ func (ud *uiaDriver) Orientation() (orientation Orientation, err error) {
 	return
 }
 
+func (ud *uiaDriver) DoubleTap(x, y int) error {
+	return ud.DoubleFloatTap(float64(x), float64(y))
+}
+
+func (ud *uiaDriver) DoubleFloatTap(x, y float64) error {
+	data := map[string]interface{}{
+		"actions": []interface{}{
+			map[string]interface{}{
+				"type":       "pointer",
+				"parameters": map[string]string{"pointerType": "touch"},
+				"id":         "touch",
+				"actions": []interface{}{
+					map[string]interface{}{"type": "pointerMove", "duration": 0, "x": x, "y": y, "origin": "viewport"},
+					map[string]interface{}{"type": "pointerDown", "duration": 0, "button": 0},
+					map[string]interface{}{"type": "pointerUp", "duration": 0, "button": 0},
+					map[string]interface{}{"type": "pointerDown", "duration": 0, "button": 0},
+					map[string]interface{}{"type": "pointerUp", "duration": 0, "button": 0},
+				},
+			},
+		},
+	}
+
+	_, err := ud.httpPOST(data, "/session", ud.sessionId, "actions/tap")
+	return err
+}
+
 func (ud *uiaDriver) Tap(x, y int, options ...ActionOption) error {
 	return ud.TapFloat(float64(x), float64(y), options...)
 }
diff --git a/hrp/pkg/uixt/video_crawler.go b/hrp/pkg/uixt/video_crawler.go
index 8af4d8a7..0ff06cf3 100644
--- a/hrp/pkg/uixt/video_crawler.go
+++ b/hrp/pkg/uixt/video_crawler.go
@@ -457,9 +457,10 @@ func (vc *VideoCrawler) getCurrentVideo() (video *Video, err error) {
 }
 
 func (vc *VideoCrawler) getLivePreviewProb() float64 {
-	if vc.driverExt.Device.System() == "ios" {
+	if _, ok := vc.driverExt.Device.(*IOSDevice); ok {
 		return 0.5326
-	} else if vc.driverExt.Device.System() == "android" {
+	}
+	if _, ok := vc.driverExt.Device.(*AndroidDevice); ok {
 		return 0.3414
 	}
 	return -1