diff --git a/app/src/leanback/java/com/fongmi/android/tv/ui/activity/VideoActivity.java b/app/src/leanback/java/com/fongmi/android/tv/ui/activity/VideoActivity.java
index f2fa60cf0..d8a217dba 100644
--- a/app/src/leanback/java/com/fongmi/android/tv/ui/activity/VideoActivity.java
+++ b/app/src/leanback/java/com/fongmi/android/tv/ui/activity/VideoActivity.java
@@ -358,6 +358,8 @@ public class VideoActivity extends BaseActivity implements CustomKeyDownVod.List
         mBinding.control.opening.setDownListener(this::onOpeningSub);
         mBinding.control.loop.setOnClickListener(view -> onLoop());
         mBinding.control.danmu.setOnClickListener(view -> onDanmu());
+        mBinding.control.danmu.setUpListener(this::onDanmuAdd);
+        mBinding.control.danmu.setDownListener(this::onDanmuSub);
         mBinding.control.next.setOnClickListener(view -> checkNext());
         mBinding.control.prev.setOnClickListener(view -> checkPrev());
         mBinding.control.episodes.setOnClickListener(view -> onEpisodes());
@@ -452,19 +454,24 @@ public class VideoActivity extends BaseActivity implements CustomKeyDownVod.List
         setSubtitle(16);
     }
 
-    private void setDanmuView() {
-        int maxLine = Setting.getDanmuLine(3);
-        mPlayers.setDanmuView(mBinding.danmaku);
+    private void setDanmuViewSettings() {
         float[] range = {2.4f, 1.8f, 1.2f, 0.8f};
         float speed = range[Setting.getDanmuSpeed()];
         float alpha = Setting.getDanmuAlpha() / 100.0f;
-        float sizeScale = Setting.getDanmuSize();
+        float sizeScale = isFullscreen() ? 1.2f * Setting.getDanmuSize() : 0.8f * Setting.getDanmuSize();
+        int maxLine = Setting.getDanmuLine(3);
         HashMap<Integer, Integer> maxLines = new HashMap<>();
         maxLines.put(BaseDanmaku.TYPE_FIX_TOP, maxLine);
         maxLines.put(BaseDanmaku.TYPE_SCROLL_RL, maxLine);
         maxLines.put(BaseDanmaku.TYPE_SCROLL_LR, maxLine);
         maxLines.put(BaseDanmaku.TYPE_FIX_BOTTOM, maxLine);
-        mDanmakuContext.setDanmakuStyle(IDisplayer.DANMAKU_STYLE_STROKEN, 3).setMaximumLines(maxLines).setScrollSpeedFactor(speed).setDanmakuTransparency(alpha).setDanmakuMargin(12).setScaleTextSize(sizeScale);
+        mDanmakuContext.setMaximumLines(maxLines).setScrollSpeedFactor(speed).setDanmakuTransparency(alpha).setScaleTextSize(sizeScale);
+    }
+
+    private void setDanmuView() {
+        mPlayers.setDanmuView(mBinding.danmaku);
+        setDanmuViewSettings();
+        mDanmakuContext.setDanmakuStyle(IDisplayer.DANMAKU_STYLE_STROKEN, 3).setDanmakuMargin(8);
         mBinding.control.danmu.setActivated(Setting.isDanmu());
     }
 
@@ -881,6 +888,22 @@ public class VideoActivity extends BaseActivity implements CustomKeyDownVod.List
         showDanmu();
     }
 
+    private void onDanmuAdd() {
+        int line = Setting.getDanmuLine(3);
+        line = Math.min(line + 1, 15);
+        Setting.putDanmuLine(line);
+        mBinding.control.danmu.setText(line + ResUtil.getString(R.string.lines));
+        setDanmuViewSettings();
+    }
+
+    private void onDanmuSub() {
+        int line = Setting.getDanmuLine(3);
+        line = Math.max(line - 1, 1);
+        Setting.putDanmuLine(line);
+        mBinding.control.danmu.setText(line + ResUtil.getString(R.string.lines));
+        setDanmuViewSettings();
+    }
+
     private void showDanmu() {
         if (Setting.isDanmu()) mBinding.danmaku.show();
         else mBinding.danmaku.hide();
@@ -1104,11 +1127,27 @@ public class VideoActivity extends BaseActivity implements CustomKeyDownVod.List
         mBinding.widget.center.setVisibility(View.GONE);
     }
 
+    private void setControlNextFocus() {
+        int count = mBinding.control.actionLayout.getChildCount();
+        for(int i=0; i<count-1; i++) {
+            View btn = mBinding.control.actionLayout.getChildAt(i);
+            if (btn == null || !isVisible(btn)) continue;
+            for(int j=i+1; j<count; j++) {
+                View next = mBinding.control.actionLayout.getChildAt(j);
+                if (next == null || !isVisible(next)) continue;
+                btn.setNextFocusRightId(next.getId());
+                next.setNextFocusLeftId(btn.getId());
+                break;
+            }
+        }
+    }
+
     private void showControl(View view) {
         mBinding.control.danmu.setVisibility(mBinding.danmaku.isPrepared() ? View.VISIBLE : View.GONE);
         mBinding.control.getRoot().setVisibility(View.VISIBLE);
         mBinding.control.episodes.setVisibility(Setting.getFullscreenMenuKey() == 0 ? View.VISIBLE : View.GONE);
         view.requestFocus();
+        setControlNextFocus();
         setR1Callback();
     }
 
diff --git a/app/src/leanback/res/layout/view_control_vod.xml b/app/src/leanback/res/layout/view_control_vod.xml
index 8edf812a3..3421da778 100644
--- a/app/src/leanback/res/layout/view_control_vod.xml
+++ b/app/src/leanback/res/layout/view_control_vod.xml
@@ -214,7 +214,7 @@
                 android:textSize="14sp"
                 tools:text="00:00" />
 
-            <TextView
+            <com.fongmi.android.tv.ui.custom.CustomUpDownView
                 android:id="@+id/danmu"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
diff --git a/app/src/main/java/com/fongmi/android/tv/player/Players.java b/app/src/main/java/com/fongmi/android/tv/player/Players.java
index 3cc0e9068..3a78d0f96 100644
--- a/app/src/main/java/com/fongmi/android/tv/player/Players.java
+++ b/app/src/main/java/com/fongmi/android/tv/player/Players.java
@@ -325,8 +325,8 @@ public class Players implements Player.Listener, IMediaPlayer.Listener, Analytic
 
     public String addSpeed() {
         float speed = getSpeed();
-        float addon = speed >= 2 ? 1f : 0.1f;
-        speed = speed >= 5 ? 0.2f : Math.min(speed + addon, 5.0f);
+        float addon = speed >= 2 ? 1f : 0.25f;
+        speed = speed >= 5 ? 0.25f : Math.min(speed + addon, 5.0f);
         return setSpeed(speed);
     }
 
diff --git a/app/src/mobile/java/com/fongmi/android/tv/ui/activity/VideoActivity.java b/app/src/mobile/java/com/fongmi/android/tv/ui/activity/VideoActivity.java
index 86bd40ba5..b8ab85b67 100644
--- a/app/src/mobile/java/com/fongmi/android/tv/ui/activity/VideoActivity.java
+++ b/app/src/mobile/java/com/fongmi/android/tv/ui/activity/VideoActivity.java
@@ -420,11 +420,11 @@ public class VideoActivity extends BaseActivity implements Clock.Callback, Custo
     }
 
     public void setDanmuViewSettings() {
-        int maxLine = Setting.getDanmuLine(2);
         float[] range = {2.4f, 1.8f, 1.2f, 0.8f};
         float speed = range[Setting.getDanmuSpeed()];
         float alpha = Setting.getDanmuAlpha() / 100.0f;
         float sizeScale = Setting.getDanmuSize();
+        int maxLine = Setting.getDanmuLine(2);
         HashMap<Integer, Integer> maxLines = new HashMap<>();
         maxLines.put(BaseDanmaku.TYPE_FIX_TOP, maxLine);
         maxLines.put(BaseDanmaku.TYPE_SCROLL_RL, maxLine);