diff --git a/app/src/main/java/com/casic/smarttube/utils/CenterMarkerView.java b/app/src/main/java/com/casic/smarttube/utils/CenterMarkerView.java
deleted file mode 100644
index 7e110ed..0000000
--- a/app/src/main/java/com/casic/smarttube/utils/CenterMarkerView.java
+++ /dev/null
@@ -1,131 +0,0 @@
-package com.casic.smarttube.utils;
-
-import android.content.Context;
-import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
-import android.graphics.Point;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.widget.TextView;
-
-import com.amap.api.maps.AMap;
-import com.amap.api.maps.model.BitmapDescriptorFactory;
-import com.amap.api.maps.model.LatLng;
-import com.amap.api.maps.model.Marker;
-import com.amap.api.maps.model.MarkerOptions;
-import com.amap.api.maps.model.animation.Animation;
-import com.amap.api.maps.model.animation.ScaleAnimation;
-import com.amap.api.services.core.AMapException;
-import com.amap.api.services.core.LatLonPoint;
-import com.amap.api.services.geocoder.GeocodeResult;
-import com.amap.api.services.geocoder.GeocodeSearch;
-import com.amap.api.services.geocoder.RegeocodeQuery;
-import com.amap.api.services.geocoder.RegeocodeResult;
-import com.casic.smarttube.R;
-
-public class CenterMarkerView {
-
-    private final Context context;
-    private Marker centerMarker;
-    private LatLng latLng;
-    private GeocodeSearch geocoderSearch;
-
-    public CenterMarkerView(Context context) {
-        this.context = context;
-        try {
-            geocoderSearch = new GeocodeSearch(context);
-        } catch (AMapException e) {
-            e.printStackTrace();
-        }
-    }
-
-    public void addCenterMarker(AMap aMap) {
-        MarkerOptions options = new MarkerOptions();
-        //对应Marker.setIcon方法  设置Marker的图片
-        options.icon(BitmapDescriptorFactory.fromResource(R.mipmap.map_pin));
-        //设置infoWindow与锚点的相对位置
-        options.anchor(0.5F, 1);
-        //拿到地图中心点的坐标。
-        LatLng latLng = aMap.getCameraPosition().target;
-        //把中心点的坐标转换成屏幕像素位置
-        Point screenPosition = aMap.getProjection().toScreenLocation(latLng);
-        //在地图上添加Marker并获取到Marker.
-        centerMarker = aMap.addMarker(options);
-        //给marker设置像素位置。
-        centerMarker.setPositionByPixels(screenPosition.x, screenPosition.y);
-        centerMarker.setAnchor(0.5F, 1);
-    }
-
-    public void initInfoWindowsView(AMap aMap) {
-        aMap.setInfoWindowAdapter(new AMap.InfoWindowAdapter() {
-            @Override
-            public View getInfoWindow(Marker marker) {
-                View infoWindow = LayoutInflater.from(context).inflate(R.layout.map_info_window, null);
-                TextView locationView = infoWindow.findViewById(R.id.locationView);
-                RegeocodeQuery queryParam = new RegeocodeQuery(
-                        new LatLonPoint(latLng.latitude, latLng.longitude),
-                        200f,
-                        GeocodeSearch.AMAP
-                );
-                geocoderSearch.getFromLocationAsyn(queryParam);
-                geocoderSearch.setOnGeocodeSearchListener(new GeocodeSearch.OnGeocodeSearchListener() {
-                    @Override
-                    public void onRegeocodeSearched(RegeocodeResult regeocodeResult, int code) {
-                        if (code == 1000) {
-                            //手动换行
-                            String address = regeocodeResult.getRegeocodeAddress().getFormatAddress();
-                            StringBuilder temp = new StringBuilder();
-                            if (address.length() > 20) {
-                                temp.append(address.substring(0, 20)).append("\r\n").append(address.substring(20));
-                            } else {
-                                temp.append(address);
-                            }
-                            locationView.setText(temp);
-                        }
-                    }
-
-                    @Override
-                    public void onGeocodeSearched(GeocodeResult geocodeResult, int i) {
-
-                    }
-                });
-                return infoWindow;
-            }
-
-            @Override
-            public View getInfoContents(Marker marker) {
-                return null;
-            }
-        });
-    }
-
-    public void showInfoWindow(LatLng latLng) {
-        this.latLng = latLng;
-        if (null != centerMarker) {
-            //缩放动画
-            Animation scaleAnimation = new ScaleAnimation(1F, 1F, 0.75F, 1F);
-            //时间设置短点
-            scaleAnimation.setDuration(500);
-            centerMarker.setAnimation(scaleAnimation);
-            centerMarker.startAnimation();
-
-            centerMarker.showInfoWindow();
-        }
-    }
-
-
-    public void hideCenterMarkerInfoWindow() {
-        centerMarker.hideInfoWindow();
-        if (null != centerMarker) {
-            Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(), R.mipmap.map_pin);
-            centerMarker.setIcon(BitmapDescriptorFactory.fromBitmap(bitmap));
-        }
-    }
-
-    public void destroy() {
-        if (null != centerMarker) {
-            centerMarker.destroy();
-            centerMarker.showInfoWindow();
-        }
-    }
-}

diff --git a/app/src/main/java/com/casic/smarttube/utils/CenterMarkerView.java b/app/src/main/java/com/casic/smarttube/utils/CenterMarkerView.java
deleted file mode 100644
index 7e110ed..0000000
--- a/app/src/main/java/com/casic/smarttube/utils/CenterMarkerView.java
+++ /dev/null
@@ -1,131 +0,0 @@
-package com.casic.smarttube.utils;
-
-import android.content.Context;
-import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
-import android.graphics.Point;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.widget.TextView;
-
-import com.amap.api.maps.AMap;
-import com.amap.api.maps.model.BitmapDescriptorFactory;
-import com.amap.api.maps.model.LatLng;
-import com.amap.api.maps.model.Marker;
-import com.amap.api.maps.model.MarkerOptions;
-import com.amap.api.maps.model.animation.Animation;
-import com.amap.api.maps.model.animation.ScaleAnimation;
-import com.amap.api.services.core.AMapException;
-import com.amap.api.services.core.LatLonPoint;
-import com.amap.api.services.geocoder.GeocodeResult;
-import com.amap.api.services.geocoder.GeocodeSearch;
-import com.amap.api.services.geocoder.RegeocodeQuery;
-import com.amap.api.services.geocoder.RegeocodeResult;
-import com.casic.smarttube.R;
-
-public class CenterMarkerView {
-
-    private final Context context;
-    private Marker centerMarker;
-    private LatLng latLng;
-    private GeocodeSearch geocoderSearch;
-
-    public CenterMarkerView(Context context) {
-        this.context = context;
-        try {
-            geocoderSearch = new GeocodeSearch(context);
-        } catch (AMapException e) {
-            e.printStackTrace();
-        }
-    }
-
-    public void addCenterMarker(AMap aMap) {
-        MarkerOptions options = new MarkerOptions();
-        //对应Marker.setIcon方法  设置Marker的图片
-        options.icon(BitmapDescriptorFactory.fromResource(R.mipmap.map_pin));
-        //设置infoWindow与锚点的相对位置
-        options.anchor(0.5F, 1);
-        //拿到地图中心点的坐标。
-        LatLng latLng = aMap.getCameraPosition().target;
-        //把中心点的坐标转换成屏幕像素位置
-        Point screenPosition = aMap.getProjection().toScreenLocation(latLng);
-        //在地图上添加Marker并获取到Marker.
-        centerMarker = aMap.addMarker(options);
-        //给marker设置像素位置。
-        centerMarker.setPositionByPixels(screenPosition.x, screenPosition.y);
-        centerMarker.setAnchor(0.5F, 1);
-    }
-
-    public void initInfoWindowsView(AMap aMap) {
-        aMap.setInfoWindowAdapter(new AMap.InfoWindowAdapter() {
-            @Override
-            public View getInfoWindow(Marker marker) {
-                View infoWindow = LayoutInflater.from(context).inflate(R.layout.map_info_window, null);
-                TextView locationView = infoWindow.findViewById(R.id.locationView);
-                RegeocodeQuery queryParam = new RegeocodeQuery(
-                        new LatLonPoint(latLng.latitude, latLng.longitude),
-                        200f,
-                        GeocodeSearch.AMAP
-                );
-                geocoderSearch.getFromLocationAsyn(queryParam);
-                geocoderSearch.setOnGeocodeSearchListener(new GeocodeSearch.OnGeocodeSearchListener() {
-                    @Override
-                    public void onRegeocodeSearched(RegeocodeResult regeocodeResult, int code) {
-                        if (code == 1000) {
-                            //手动换行
-                            String address = regeocodeResult.getRegeocodeAddress().getFormatAddress();
-                            StringBuilder temp = new StringBuilder();
-                            if (address.length() > 20) {
-                                temp.append(address.substring(0, 20)).append("\r\n").append(address.substring(20));
-                            } else {
-                                temp.append(address);
-                            }
-                            locationView.setText(temp);
-                        }
-                    }
-
-                    @Override
-                    public void onGeocodeSearched(GeocodeResult geocodeResult, int i) {
-
-                    }
-                });
-                return infoWindow;
-            }
-
-            @Override
-            public View getInfoContents(Marker marker) {
-                return null;
-            }
-        });
-    }
-
-    public void showInfoWindow(LatLng latLng) {
-        this.latLng = latLng;
-        if (null != centerMarker) {
-            //缩放动画
-            Animation scaleAnimation = new ScaleAnimation(1F, 1F, 0.75F, 1F);
-            //时间设置短点
-            scaleAnimation.setDuration(500);
-            centerMarker.setAnimation(scaleAnimation);
-            centerMarker.startAnimation();
-
-            centerMarker.showInfoWindow();
-        }
-    }
-
-
-    public void hideCenterMarkerInfoWindow() {
-        centerMarker.hideInfoWindow();
-        if (null != centerMarker) {
-            Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(), R.mipmap.map_pin);
-            centerMarker.setIcon(BitmapDescriptorFactory.fromBitmap(bitmap));
-        }
-    }
-
-    public void destroy() {
-        if (null != centerMarker) {
-            centerMarker.destroy();
-            centerMarker.showInfoWindow();
-        }
-    }
-}
diff --git a/app/src/main/java/com/casic/smarttube/utils/CenterMarkerView.kt b/app/src/main/java/com/casic/smarttube/utils/CenterMarkerView.kt
new file mode 100644
index 0000000..7e110ed
--- /dev/null
+++ b/app/src/main/java/com/casic/smarttube/utils/CenterMarkerView.kt
@@ -0,0 +1,131 @@
+package com.casic.smarttube.utils;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.Point;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.TextView;
+
+import com.amap.api.maps.AMap;
+import com.amap.api.maps.model.BitmapDescriptorFactory;
+import com.amap.api.maps.model.LatLng;
+import com.amap.api.maps.model.Marker;
+import com.amap.api.maps.model.MarkerOptions;
+import com.amap.api.maps.model.animation.Animation;
+import com.amap.api.maps.model.animation.ScaleAnimation;
+import com.amap.api.services.core.AMapException;
+import com.amap.api.services.core.LatLonPoint;
+import com.amap.api.services.geocoder.GeocodeResult;
+import com.amap.api.services.geocoder.GeocodeSearch;
+import com.amap.api.services.geocoder.RegeocodeQuery;
+import com.amap.api.services.geocoder.RegeocodeResult;
+import com.casic.smarttube.R;
+
+public class CenterMarkerView {
+
+    private final Context context;
+    private Marker centerMarker;
+    private LatLng latLng;
+    private GeocodeSearch geocoderSearch;
+
+    public CenterMarkerView(Context context) {
+        this.context = context;
+        try {
+            geocoderSearch = new GeocodeSearch(context);
+        } catch (AMapException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public void addCenterMarker(AMap aMap) {
+        MarkerOptions options = new MarkerOptions();
+        //对应Marker.setIcon方法  设置Marker的图片
+        options.icon(BitmapDescriptorFactory.fromResource(R.mipmap.map_pin));
+        //设置infoWindow与锚点的相对位置
+        options.anchor(0.5F, 1);
+        //拿到地图中心点的坐标。
+        LatLng latLng = aMap.getCameraPosition().target;
+        //把中心点的坐标转换成屏幕像素位置
+        Point screenPosition = aMap.getProjection().toScreenLocation(latLng);
+        //在地图上添加Marker并获取到Marker.
+        centerMarker = aMap.addMarker(options);
+        //给marker设置像素位置。
+        centerMarker.setPositionByPixels(screenPosition.x, screenPosition.y);
+        centerMarker.setAnchor(0.5F, 1);
+    }
+
+    public void initInfoWindowsView(AMap aMap) {
+        aMap.setInfoWindowAdapter(new AMap.InfoWindowAdapter() {
+            @Override
+            public View getInfoWindow(Marker marker) {
+                View infoWindow = LayoutInflater.from(context).inflate(R.layout.map_info_window, null);
+                TextView locationView = infoWindow.findViewById(R.id.locationView);
+                RegeocodeQuery queryParam = new RegeocodeQuery(
+                        new LatLonPoint(latLng.latitude, latLng.longitude),
+                        200f,
+                        GeocodeSearch.AMAP
+                );
+                geocoderSearch.getFromLocationAsyn(queryParam);
+                geocoderSearch.setOnGeocodeSearchListener(new GeocodeSearch.OnGeocodeSearchListener() {
+                    @Override
+                    public void onRegeocodeSearched(RegeocodeResult regeocodeResult, int code) {
+                        if (code == 1000) {
+                            //手动换行
+                            String address = regeocodeResult.getRegeocodeAddress().getFormatAddress();
+                            StringBuilder temp = new StringBuilder();
+                            if (address.length() > 20) {
+                                temp.append(address.substring(0, 20)).append("\r\n").append(address.substring(20));
+                            } else {
+                                temp.append(address);
+                            }
+                            locationView.setText(temp);
+                        }
+                    }
+
+                    @Override
+                    public void onGeocodeSearched(GeocodeResult geocodeResult, int i) {
+
+                    }
+                });
+                return infoWindow;
+            }
+
+            @Override
+            public View getInfoContents(Marker marker) {
+                return null;
+            }
+        });
+    }
+
+    public void showInfoWindow(LatLng latLng) {
+        this.latLng = latLng;
+        if (null != centerMarker) {
+            //缩放动画
+            Animation scaleAnimation = new ScaleAnimation(1F, 1F, 0.75F, 1F);
+            //时间设置短点
+            scaleAnimation.setDuration(500);
+            centerMarker.setAnimation(scaleAnimation);
+            centerMarker.startAnimation();
+
+            centerMarker.showInfoWindow();
+        }
+    }
+
+
+    public void hideCenterMarkerInfoWindow() {
+        centerMarker.hideInfoWindow();
+        if (null != centerMarker) {
+            Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(), R.mipmap.map_pin);
+            centerMarker.setIcon(BitmapDescriptorFactory.fromBitmap(bitmap));
+        }
+    }
+
+    public void destroy() {
+        if (null != centerMarker) {
+            centerMarker.destroy();
+            centerMarker.showInfoWindow();
+        }
+    }
+}