fix:【光环助手】同步正式环境问题-帮助视频问题 https://jira.shanqu.cc/browse/GHZS-3532

module_common/src/main/java/com/gh/gamecenter/common/utils/LeftPagerSnapHelper.java

@@ -4,6 +4,7 @@ import android.view.View;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.OrientationHelper;
 import androidx.recyclerview.widget.PagerSnapHelper;
 import androidx.recyclerview.widget.RecyclerView;
@@ -61,4 +62,29 @@ public class LeftPagerSnapHelper extends PagerSnapHelper {
         }
         return mHorizontalHelper;
     }
+
+    @Nullable
+    @Override
+    public View findSnapView(RecyclerView.LayoutManager layoutManager) {
+        OrientationHelper helper = layoutManager.canScrollHorizontally() ? getHorizontalHelper(layoutManager) : getVerticalHelper(layoutManager);
+        if (layoutManager instanceof LinearLayoutManager) {
+            int firstChildPosition = ((LinearLayoutManager) layoutManager).findFirstVisibleItemPosition();
+            if (firstChildPosition == RecyclerView.NO_POSITION) {
+                return null;
+            }
+
+            if (((LinearLayoutManager) layoutManager).findLastCompletelyVisibleItemPosition() == layoutManager.getItemCount() - 1) {
+                return null;
+            }
+
+            View firstChildView = layoutManager.findViewByPosition(firstChildPosition);
+            if (helper.getDecoratedEnd(firstChildView) >= helper.getDecoratedMeasurement(firstChildView) / 2 && helper.getDecoratedEnd(firstChildView) > 0) {
+                return firstChildView;
+            } else {
+                return layoutManager.findViewByPosition(firstChildPosition + 1);
+            }
+        } else {
+            return null;
+        }
+    }
 }