diff --git a/app/src/main/java/com/casic/detector/cluster/ClusterOverlay.java b/app/src/main/java/com/casic/detector/cluster/ClusterOverlay.java
index 8aedec5..3960a9e 100644
--- a/app/src/main/java/com/casic/detector/cluster/ClusterOverlay.java
+++ b/app/src/main/java/com/casic/detector/cluster/ClusterOverlay.java
@@ -26,6 +26,7 @@
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
 
 /**
  * 整体设计采用了两个线程,一个线程用于计算组织聚合数据,一个线程负责处理Marker相关操作
@@ -38,7 +39,7 @@
     private final int clusterSize;
     private ClusterOnClickListener clusterClickListener;
     private ClusterRender clusterRender;
-    private final List<Marker> addMarkers = new ArrayList<>();
+    private final CopyOnWriteArrayList<Marker> addMarkers = new CopyOnWriteArrayList<>();
     private double clusterDistance;
     private final LruCache<Integer, BitmapDescriptor> lruCache;
     private final HandlerThread markerHandlerThread = new HandlerThread("addMarker");
@@ -112,7 +113,6 @@
         markerHandlerThread.quit();
         for (Marker marker : addMarkers) {
             marker.remove();
-
         }
         addMarkers.clear();
         lruCache.evictAll();

diff --git a/app/src/main/java/com/casic/detector/cluster/ClusterOverlay.java b/app/src/main/java/com/casic/detector/cluster/ClusterOverlay.java
index 8aedec5..3960a9e 100644
--- a/app/src/main/java/com/casic/detector/cluster/ClusterOverlay.java
+++ b/app/src/main/java/com/casic/detector/cluster/ClusterOverlay.java
@@ -26,6 +26,7 @@
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
 
 /**
  * 整体设计采用了两个线程,一个线程用于计算组织聚合数据,一个线程负责处理Marker相关操作
@@ -38,7 +39,7 @@
     private final int clusterSize;
     private ClusterOnClickListener clusterClickListener;
     private ClusterRender clusterRender;
-    private final List<Marker> addMarkers = new ArrayList<>();
+    private final CopyOnWriteArrayList<Marker> addMarkers = new CopyOnWriteArrayList<>();
     private double clusterDistance;
     private final LruCache<Integer, BitmapDescriptor> lruCache;
     private final HandlerThread markerHandlerThread = new HandlerThread("addMarker");
@@ -112,7 +113,6 @@
         markerHandlerThread.quit();
         for (Marker marker : addMarkers) {
             marker.remove();
-
         }
         addMarkers.clear();
         lruCache.evictAll();
diff --git a/app/src/main/java/com/casic/detector/view/MainActivity.kt b/app/src/main/java/com/casic/detector/view/MainActivity.kt
index 7d6b5c0..d590626 100644
--- a/app/src/main/java/com/casic/detector/view/MainActivity.kt
+++ b/app/src/main/java/com/casic/detector/view/MainActivity.kt
@@ -319,6 +319,7 @@
         uiSettings.isScaleControlsEnabled = true
         uiSettings.zoomPosition = AMapOptions.ZOOM_POSITION_RIGHT_CENTER
         uiSettings.isRotateGesturesEnabled = false//不许地图随手势旋转角度
+        uiSettings.isTiltGesturesEnabled = false//不许地图随手势倾斜
         //显示定位小蓝点
         val locationStyle = MyLocationStyle()
         locationStyle.interval(2000)