Clean code

app/src/leanback/java/com/fongmi/android/tv/ui/activity/VideoActivity.java

@@ -415,11 +415,10 @@ public class VideoActivity extends BaseActivity implements CustomKeyDownVod.List
 
     private void setDanmuView() {
         int maxLine = Setting.getDanmuLine(3);
-        int danmuSpeed = Setting.getDanmuSpeed();
         mPlayers.setDanmuView(mBinding.danmaku);
+        float[] range = {2.4f, 1.8f, 1.2f, 0.8f};
+        float speed = range[Setting.getDanmuSpeed()];
         float alpha = Setting.getDanmuAlpha() / 100.0f;
-        float[] speedRange = {2.4f, 1.8f, 1.2f, 0.8f };
-        float speed = danmuSpeed < speedRange.length ? speedRange[danmuSpeed] : 1.2f;
         HashMap<Integer, Integer> maxLines = new HashMap<>();
         maxLines.put(BaseDanmaku.TYPE_FIX_TOP, maxLine);
         maxLines.put(BaseDanmaku.TYPE_SCROLL_RL, maxLine);

app/src/main/java/com/fongmi/android/tv/Setting.java

@@ -258,7 +258,7 @@ public class Setting {
     }
 
     public static int getDanmuSpeed() {
-        return Prefers.getInt("danmu_speed", 2);
+        return Math.min(Math.max(Prefers.getInt("danmu_speed", 2), 0), 3);
     }
 
     public static void putDanmuSpeed(int speed) {

app/src/mobile/java/com/fongmi/android/tv/ui/activity/VideoActivity.java

@@ -413,11 +413,10 @@ public class VideoActivity extends BaseActivity implements Clock.Callback, Custo
 
     private void setDanmuView() {
         int maxLine = Setting.getDanmuLine(2);
-        int danmuSpeed = Setting.getDanmuSpeed();
         mPlayers.setDanmuView(mBinding.danmaku);
+        float[] range = {2.4f, 1.8f, 1.2f, 0.8f};
+        float speed = range[Setting.getDanmuSpeed()];
         float alpha = Setting.getDanmuAlpha() / 100.0f;
-        float[] speedRange = {2.4f, 1.8f, 1.2f, 0.8f };
-        float speed = danmuSpeed < speedRange.length ? speedRange[danmuSpeed] : 1.2f;
         HashMap<Integer, Integer> maxLines = new HashMap<>();
         maxLines.put(BaseDanmaku.TYPE_FIX_TOP, maxLine);
         maxLines.put(BaseDanmaku.TYPE_SCROLL_RL, maxLine);