diff --git a/gallery/src/player_ability_slice.cpp b/gallery/src/player_ability_slice.cpp
index b7fdfe26f502f3e71a16e032120a97a83b58a25f..2e2e0376115716595d2e2f5e16c6e172d42d6af2 100755
--- a/gallery/src/player_ability_slice.cpp
+++ b/gallery/src/player_ability_slice.cpp
@@ -238,7 +238,8 @@ void PlayerAbilitySlice::SetUpProgress(int64_t duration)
     slider_->SetRange(SLIDER_WIDTH, 0);
     slider_->SetValue(0);
     slider_->SetKnobWidth(KNOB_WIDTH);
-    slider_->SetSliderRadius(SLIDER_HEIGHT, SLIDER_HEIGHT, KNOB_WIDTH / 2); // 2: half
+    slider_->SetSliderRadius(SLIDER_HEIGHT, SLIDER_HEIGHT);
+    slider_->SetKnobRadius(KNOB_WIDTH / 2); // 2: half
     slider_->SetKnobStyle(STYLE_BACKGROUND_COLOR, Color::White().full);
     slider_->SetBackgroundStyle(STYLE_BACKGROUND_COLOR, 0x1A888888);
     slider_->SetBackgroundStyle(STYLE_BACKGROUND_OPA, 90); // 90: opacity is 90