代码整理

README.md

@@ -8,11 +8,7 @@
 ## 准备工作
 * 登录[高德开放平台官网](https://lbs.amap.com/)申请ApiKey。Android平台申请配置key请参考[Android获取key](https://lbs.amap.com/api/poi-sdk-android/develop/create-project/get-key/?sug_index=2), iOS平台申请配置请参考[iOS获取key](https://lbs.amap.com/api/poi-sdk-ios/develop/create-project/get-key/?sug_index=1)。
 * 引入高德地图SDK，Android平台请参考[Android Sudio配置工程](https://lbs.amap.com/api/android-sdk/guide/create-project/android-studio-create-project), iOS平台请参考[ios安装地图SDK](https://lbs.amap.com/api/ios-sdk/guide/create-project/cocoapods)
-* iOS端插件使用特殊配置:Flutter 1.22.0 之前(之后的版本可以不添加该配置)，iOS端的UiKitView还只是preview状态, 默认是不支持的, 需要手动打开开关, 需要在iOS工程的info.plist添加如下配置:
+
-``` XML
-<key>io.flutter.embedded_views_preview</key>
-<string>YES</string>
-```
 
 ## 使用示例
 ``` Dart
@@ -20,7 +16,7 @@ import 'package:amap_map_example/base_page.dart';
 import 'package:flutter/material.dart';
 
 import 'package:amap_map/amap_map.dart';
-import 'package:amap_map/amap_map.dart';
+import 'package:x_amap_base/x_amap_base.dart';
 
 class ShowMapPage extends BasePage {
   ShowMapPage(String title, String subTitle) : super(title, subTitle);
@@ -40,7 +36,6 @@ class _ShowMapPageState extends State<_ShowMapPageBody> {
     target: LatLng(39.909187, 116.397451),
     zoom: 10.0,
   );
-  List<Widget> _approvalNumberWidget = List<Widget>();
   @override
   Widget build(BuildContext context) {
     final AMapWidget map = AMapWidget(
@@ -50,25 +45,11 @@ class _ShowMapPageState extends State<_ShowMapPageBody> {
 
     return ConstrainedBox(
       constraints: BoxConstraints.expand(),
-      child: Stack(
+      child: Container(
-        alignment: Alignment.center,
-        children: [
-          Container(
         height: MediaQuery.of(context).size.height,
         width: MediaQuery.of(context).size.width,
         child: map,
       ),
-          Positioned(
-              right: 10,
-              bottom: 15,
-              child: Container(
-                alignment: Alignment.centerLeft,
-                child: Column(
-                    mainAxisAlignment: MainAxisAlignment.start,
-                    children: _approvalNumberWidget),
-              ))
-        ],
-      ),
     );
   }
 
@@ -76,29 +57,9 @@ class _ShowMapPageState extends State<_ShowMapPageBody> {
   void onMapCreated(AMapController controller) {
     setState(() {
       _mapController = controller;
-      getApprovalNumber();
     });
   }
 
-  /// 获取审图号
-  void getApprovalNumber() async {
-    //普通地图审图号
-    String mapContentApprovalNumber =
-        await _mapController?.getMapContentApprovalNumber();
-    //卫星地图审图号
-    String satelliteImageApprovalNumber =
-        await _mapController?.getSatelliteImageApprovalNumber();
-    setState(() {
-      if (null != mapContentApprovalNumber) {
-        _approvalNumberWidget.add(Text(mapContentApprovalNumber));
-      }
-      if (null != satelliteImageApprovalNumber) {
-        _approvalNumberWidget.add(Text(satelliteImageApprovalNumber));
-      }
-    });
-    print('地图审图号（普通地图）: $mapContentApprovalNumber');
-    print('地图审图号（卫星地图): $satelliteImageApprovalNumber');
-  }
 }
 
 ```

android/build.gradle

@@ -1,21 +1,21 @@
-group 'com.amap.flutter.amap_map'
+group 'com.amap.flutter.map'
 version '1.0'
 
 buildscript {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath 'com.android.tools.build:gradle:3.5.3'
     }
 }
 
 rootProject.allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 }
 

android/src/main/AndroidManifest.xml

@@ -1,3 +1 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+<manifest package="com.amap.flutter.map"></manifest>
-  package="com.amap.flutter.amap_map">
-</manifest>

android/src/main/java/com/amap/flutter/map/AMapFlutterMapPlugin.java

@@ -9,7 +9,6 @@ import androidx.lifecycle.LifecycleOwner;
 
 import com.amap.flutter.map.utils.LogUtil;
 
-
 import io.flutter.embedding.engine.plugins.FlutterPlugin;
 import io.flutter.embedding.engine.plugins.activity.ActivityAware;
 import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding;
@@ -23,10 +22,11 @@ public class AMapFlutterMapPlugin implements
         FlutterPlugin,
         ActivityAware {
     private static final String CLASS_NAME = "AMapFlutterMapPlugin";
-    private FlutterPluginBinding pluginBinding;
+    private static final String VIEW_TYPE = "com.amap.flutter.map";
     private Lifecycle lifecycle;
 
-    private static final String VIEW_TYPE = "com.amap.flutter.map";
+    public AMapFlutterMapPlugin() {
+    }
 
     public static void registerWith(PluginRegistry.Registrar registrar) {
         LogUtil.i(CLASS_NAME, "registerWith=====>");
@@ -58,15 +58,11 @@ public class AMapFlutterMapPlugin implements
         }
     }
 
-    public AMapFlutterMapPlugin() {
-    }
-
     // FlutterPlugin
 
     @Override
     public void onAttachedToEngine(@NonNull FlutterPluginBinding binding) {
         LogUtil.i(CLASS_NAME, "onAttachedToEngine==>");
-        pluginBinding = binding;
         binding
                 .getPlatformViewRegistry()
                 .registerViewFactory(
@@ -85,7 +81,6 @@ public class AMapFlutterMapPlugin implements
     @Override
     public void onDetachedFromEngine(@NonNull FlutterPluginBinding binding) {
         LogUtil.i(CLASS_NAME, "onDetachedFromEngine==>");
-        pluginBinding = null;
     }
 
 

android/src/main/java/com/amap/flutter/map/AMapOptionsBuilder.java

@@ -2,7 +2,6 @@ package com.amap.flutter.map;
 
 import android.content.Context;
 
-
 import com.amap.api.maps.AMapOptions;
 import com.amap.api.maps.model.CameraPosition;
 import com.amap.api.maps.model.CustomMapStyleOptions;
@@ -11,7 +10,6 @@ import com.amap.api.maps.model.MyLocationStyle;
 import com.amap.flutter.map.core.AMapOptionsSink;
 import com.amap.flutter.map.utils.LogUtil;
 
-
 import java.util.List;
 
 import io.flutter.plugin.common.BinaryMessenger;

android/src/main/java/com/amap/flutter/map/AMapPlatformView.java

@@ -42,18 +42,14 @@ public class AMapPlatformView
         PlatformView {
     private static final String CLASS_NAME = "AMapPlatformView";
     private final MethodChannel methodChannel;
-
+    private final Map<String, MyMethodCallHandler> myMethodCallHandlerMap;
     private MapController mapController;
     private MarkersController markersController;
     private PolylinesController polylinesController;
     private PolygonsController polygonsController;
-
     private TextureMapView mapView;
-
     private boolean disposed = false;
 
-    private final Map<String, MyMethodCallHandler> myMethodCallHandlerMap;
-
     AMapPlatformView(int id,
                      Context context,
                      BinaryMessenger binaryMessenger,

android/src/main/java/com/amap/flutter/map/AMapPlatformViewFactory.java

@@ -23,6 +23,7 @@ class AMapPlatformViewFactory extends PlatformViewFactory {
     private static final String CLASS_NAME = "AMapPlatformViewFactory";
     private final BinaryMessenger binaryMessenger;
     private final LifecycleProvider lifecycleProvider;
+
     AMapPlatformViewFactory(BinaryMessenger binaryMessenger,
                             LifecycleProvider lifecycleProvider) {
         super(StandardMessageCodec.INSTANCE);

android/src/main/java/com/amap/flutter/map/MyMethodCallHandler.java

@@ -2,7 +2,6 @@ package com.amap.flutter.map;
 
 import androidx.annotation.NonNull;
 
-
 import io.flutter.plugin.common.MethodCall;
 import io.flutter.plugin.common.MethodChannel;
 
@@ -14,10 +13,12 @@ import io.flutter.plugin.common.MethodChannel;
  */
 public interface MyMethodCallHandler {
 
-    public void doMethodCall(@NonNull MethodCall call, @NonNull MethodChannel.Result result);
+    void doMethodCall(@NonNull MethodCall call, @NonNull MethodChannel.Result result);
+
     /**
      * 获取注册的{@link io.flutter.plugin.common.MethodCall#method}
+     *
      * @return
      */
-    public abstract String[] getRegisterMethodIdArray();
+    String[] getRegisterMethodIdArray();
 }

android/src/main/java/com/amap/flutter/map/ProxyLifecycleProvider.java

@@ -20,8 +20,7 @@ import com.amap.flutter.map.utils.LogUtil;
 public class ProxyLifecycleProvider
         implements
         Application.ActivityLifecycleCallbacks,
-        LifecycleOwner,
+        LifecycleOwner {
-        LifecycleProvider {
     private static final String CLASS_NAME = "ProxyLifecycleProvider";
     private final LifecycleRegistry lifecycle = new LifecycleRegistry(this);
     private final int registrarActivityHashCode;

android/src/main/java/com/amap/flutter/map/core/AMapOptionsSink.java

@@ -4,7 +4,6 @@ import com.amap.api.maps.model.CameraPosition;
 import com.amap.api.maps.model.CustomMapStyleOptions;
 import com.amap.api.maps.model.LatLngBounds;
 import com.amap.api.maps.model.MyLocationStyle;
-import com.amap.api.maps.model.MyTrafficStyle;
 
 /**
  * @author whm

android/src/main/java/com/amap/flutter/map/core/MapController.java

@@ -3,7 +3,6 @@ package com.amap.flutter.map.core;
 import android.graphics.Bitmap;
 import android.location.Location;
 
-
 import androidx.annotation.NonNull;
 
 import com.amap.api.maps.AMap;
@@ -43,16 +42,15 @@ public class MapController
         AMap.OnMapClickListener,
         AMap.OnMapLongClickListener,
         AMap.OnPOIClickListener {
+    private static final String CLASS_NAME = "MapController";
     private static boolean hasStarted = false;
     private final MethodChannel methodChannel;
     private final AMap amap;
     private final TextureMapView mapView;
-    private MethodChannel.Result mapReadyResult;
     protected int[] myArray = {};
-
+    private MethodChannel.Result mapReadyResult;
-    private static final String CLASS_NAME = "MapController";
-
     private boolean mapLoaded = false;
+    private boolean myLocationShowing = false;
 
     public MapController(MethodChannel methodChannel, TextureMapView mapView) {
         this.methodChannel = methodChannel;
@@ -72,7 +70,6 @@ public class MapController
         return Const.METHOD_ID_LIST_FOR_MAP;
     }
 
-
     @Override
     public void doMethodCall(@NonNull MethodCall call, @NonNull MethodChannel.Result result) {
         LogUtil.i(CLASS_NAME, "doMethodCall===>" + call.method);
@@ -89,38 +86,27 @@ public class MapController
                 mapReadyResult = result;
                 break;
             case Const.METHOD_MAP_SATELLITE_IMAGE_APPROVAL_NUMBER:
-                if (null != amap) {
                 result.success(amap.getSatelliteImageApprovalNumber());
-                }
                 break;
             case Const.METHOD_MAP_CONTENT_APPROVAL_NUMBER:
-                if (null != amap) {
                 result.success(amap.getMapContentApprovalNumber());
-                }
                 break;
             case Const.METHOD_MAP_UPDATE:
-                if (amap != null) {
                 ConvertUtil.interpretAMapOptions(call.argument("options"), this);
                 result.success(ConvertUtil.cameraPositionToMap(getCameraPosition()));
-                }
                 break;
             case Const.METHOD_MAP_MOVE_CAMERA:
-                if (null != amap) {
                 final CameraUpdate cameraUpdate = ConvertUtil.toCameraUpdate(call.argument("cameraUpdate"));
                 final Object animatedObject = call.argument("animated");
                 final Object durationObject = call.argument("duration");
 
                 moveCamera(cameraUpdate, animatedObject, durationObject);
-                }
                 break;
             case Const.METHOD_MAP_SET_RENDER_FPS:
-                if (null != amap) {
                 amap.setRenderFps((Integer) call.argument("fps"));
                 result.success(null);
-                }
                 break;
             case Const.METHOD_MAP_TAKE_SNAPSHOT:
-                if (amap != null) {
                 final MethodChannel.Result _result = result;
                 amap.getMapScreenShot(new AMap.OnMapScreenShotListener() {
                     @Override
@@ -137,13 +123,10 @@ public class MapController
 
                     }
                 });
-                }
                 break;
             case Const.METHOD_MAP_CLEAR_DISK:
-                if (null != amap) {
                 amap.removecache();
                 result.success(null);
-                }
                 break;
             default:
                 LogUtil.w(CLASS_NAME, "onMethodCall not find methodId:" + call.method);
@@ -187,8 +170,6 @@ public class MapController
         }
     }
 
-    private boolean myLocationShowing = false;
-
     @Override
     public void setMyLocationStyle(MyLocationStyle myLocationStyle) {
         if (null != amap) {

android/src/main/java/com/amap/flutter/map/overlays/AbstractOverlayController.java

@@ -1,13 +1,8 @@
 package com.amap.flutter.map.overlays;
 
-import androidx.annotation.NonNull;
-
 import com.amap.api.maps.AMap;
-import com.amap.api.maps.TextureMapView;
 
-import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 
 import io.flutter.plugin.common.MethodChannel;
@@ -23,6 +18,7 @@ public abstract class AbstractOverlayController<T> {
     protected final Map<String, String> idMapByOverlyId;
     protected final MethodChannel methodChannel;
     protected final AMap amap;
+
     public AbstractOverlayController(MethodChannel methodChannel, AMap amap) {
         this.methodChannel = methodChannel;
         this.amap = amap;

android/src/main/java/com/amap/flutter/map/overlays/marker/MarkerController.java

@@ -36,6 +36,11 @@ class MarkerController implements MarkerOptionsSink {
         return null;
     }
 
+    @Override
+    public void setPosition(LatLng position) {
+        marker.setPosition(position);
+    }
+
     @Override
     public void setAlpha(float alpha) {
         marker.setAlpha(alpha);
@@ -71,11 +76,6 @@ class MarkerController implements MarkerOptionsSink {
         marker.setSnippet(snippet);
     }
 
-    @Override
-    public void setPosition(LatLng position) {
-        marker.setPosition(position);
-    }
-
     @Override
     public void setRotation(float rotation) {
         marker.setRotateAngle(rotation);

android/src/main/java/com/amap/flutter/map/overlays/marker/MarkerUtil.java

@@ -2,7 +2,6 @@ package com.amap.flutter.map.overlays.marker;
 
 import android.text.TextUtils;
 
-import com.amap.flutter.map.overlays.marker.MarkerOptionsSink;
 import com.amap.flutter.map.utils.ConvertUtil;
 
 import java.util.List;

android/src/main/java/com/amap/flutter/map/overlays/marker/MarkersController.java

@@ -5,12 +5,10 @@ import android.text.TextUtils;
 import androidx.annotation.NonNull;
 
 import com.amap.api.maps.AMap;
-import com.amap.api.maps.TextureMapView;
 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.Poi;
-import com.amap.api.maps.model.Polyline;
 import com.amap.flutter.map.MyMethodCallHandler;
 import com.amap.flutter.map.overlays.AbstractOverlayController;
 import com.amap.flutter.map.utils.Const;

android/src/main/java/com/amap/flutter/map/overlays/polygon/PolygonController.java

@@ -3,7 +3,6 @@ package com.amap.flutter.map.overlays.polygon;
 import com.amap.api.maps.model.AMapPara;
 import com.amap.api.maps.model.LatLng;
 import com.amap.api.maps.model.Polygon;
-import com.amap.api.maps.model.PolygonOptions;
 
 import java.util.List;
 
@@ -17,6 +16,7 @@ class PolygonController implements PolygonOptionsSink{
 
     private final Polygon polygon;
     private final String id;
+
     PolygonController(Polygon polygon) {
         this.polygon = polygon;
         this.id = polygon.getId();

android/src/main/java/com/amap/flutter/map/overlays/polygon/PolygonOptionsBuilder.java

@@ -1,11 +1,8 @@
 package com.amap.flutter.map.overlays.polygon;
 
 import com.amap.api.maps.model.AMapPara;
-import com.amap.api.maps.model.BitmapDescriptor;
 import com.amap.api.maps.model.LatLng;
 import com.amap.api.maps.model.PolygonOptions;
-import com.amap.api.maps.model.PolylineOptions;
-import com.amap.flutter.map.overlays.polyline.PolylineOptionsSink;
 
 import java.util.List;
 
@@ -17,6 +14,7 @@ import java.util.List;
  */
 class PolygonOptionsBuilder implements PolygonOptionsSink {
     final PolygonOptions polygonOptions;
+
     PolygonOptionsBuilder() {
         polygonOptions = new PolygonOptions();
         //必须设置为true，否则会出现线条转折处出现断裂的现象

android/src/main/java/com/amap/flutter/map/overlays/polygon/PolygonUtil.java

@@ -1,7 +1,6 @@
 package com.amap.flutter.map.overlays.polygon;
 
 import com.amap.api.maps.model.AMapPara;
-import com.amap.flutter.map.overlays.polyline.PolylineOptionsSink;
 import com.amap.flutter.map.utils.ConvertUtil;
 
 import java.util.Map;

android/src/main/java/com/amap/flutter/map/overlays/polygon/PolygonsController.java

@@ -51,7 +51,6 @@ public class PolygonsController
     }
 
     /**
-     *
      * @param methodCall
      * @param result
      */

android/src/main/java/com/amap/flutter/map/overlays/polyline/PolylineController.java

@@ -16,6 +16,7 @@ import java.util.List;
 class PolylineController implements PolylineOptionsSink {
     final Polyline polyline;
     final String polylineId;
+
     PolylineController(Polyline polyline) {
         this.polyline = polyline;
         this.polylineId = polyline.getId();
@@ -30,6 +31,7 @@ class PolylineController implements PolylineOptionsSink {
             polyline.remove();
         }
     }
+
     @Override
     public void setPoints(List<LatLng> points) {
         polyline.setPoints(points);

android/src/main/java/com/amap/flutter/map/overlays/polyline/PolylineOptionsBuilder.java

@@ -1,6 +1,5 @@
 package com.amap.flutter.map.overlays.polyline;
 
-import com.amap.api.maps.model.AMapPara;
 import com.amap.api.maps.model.BitmapDescriptor;
 import com.amap.api.maps.model.LatLng;
 import com.amap.api.maps.model.PolylineOptions;

android/src/main/java/com/amap/flutter/map/overlays/polyline/PolylinesController.java

@@ -5,7 +5,6 @@ import android.text.TextUtils;
 import androidx.annotation.NonNull;
 
 import com.amap.api.maps.AMap;
-import com.amap.api.maps.TextureMapView;
 import com.amap.api.maps.model.Polyline;
 import com.amap.api.maps.model.PolylineOptions;
 import com.amap.flutter.map.MyMethodCallHandler;
@@ -68,7 +67,6 @@ public class PolylinesController
     }
 
     /**
-     *
      * @param methodCall
      * @param result
      */
@@ -145,5 +143,4 @@ public class PolylinesController
     }
 
 
-
 }

android/src/main/java/com/amap/flutter/map/utils/ConvertUtil.java

@@ -7,6 +7,8 @@ import android.graphics.Point;
 import android.location.Location;
 import android.text.TextUtils;
 
+import androidx.annotation.NonNull;
+
 import com.amap.api.maps.AMap;
 import com.amap.api.maps.CameraUpdate;
 import com.amap.api.maps.CameraUpdateFactory;
@@ -28,8 +30,6 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-import androidx.annotation.NonNull;
-
 import io.flutter.view.FlutterMain;
 
 /**
@@ -41,7 +41,7 @@ import io.flutter.view.FlutterMain;
 public class ConvertUtil {
 
     private static final String CLASS_NAME = "ConvertUtil";
-
+    private static final int[] LocationTypeMap = new int[]{MyLocationStyle.LOCATION_TYPE_SHOW, MyLocationStyle.LOCATION_TYPE_FOLLOW, MyLocationStyle.LOCATION_TYPE_LOCATION_ROTATE};
     public static float density;
     private static String apiKey;
 
@@ -138,7 +138,6 @@ public class ConvertUtil {
         }
     }
 
-
     private static Point toPoint(Object o) {
         final List<?> data = toList(o);
         return new Point(toPixels(data.get(0)), toPixels(data.get(1)));
@@ -297,8 +296,6 @@ public class ConvertUtil {
         return customMapStyleOptions;
     }
 
-    private static final int[] LocationTypeMap = new int[]{MyLocationStyle.LOCATION_TYPE_SHOW, MyLocationStyle.LOCATION_TYPE_FOLLOW, MyLocationStyle.LOCATION_TYPE_LOCATION_ROTATE};
-
     private static MyLocationStyle toMyLocationStyle(Object o, float density) {
         final Map<?, ?> map = toMap(o);
         final MyLocationStyle myLocationStyle = new MyLocationStyle();

android/src/main/java/com/amap/flutter/map/utils/LogUtil.java

@@ -10,13 +10,15 @@ import android.util.Log;
  * @since
  */
 public class LogUtil {
-    public static boolean isDebugMode = false;
     private static final String TAG = "AMapFlutter_";
+    public static boolean isDebugMode = false;
+
     public static void i(String className, String message) {
         if (isDebugMode) {
             Log.i(TAG + className, message);
         }
     }
+
     public static void d(String className, String message) {
         if (isDebugMode) {
             Log.d(TAG + className, message);

example/android/app/build.gradle

@@ -25,7 +25,7 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 29
+    compileSdkVersion 33
 
     lintOptions {
         disable 'InvalidPackage'
@@ -35,7 +35,7 @@ android {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "com.amap.flutter.amap_map_example"
         minSdkVersion flutter.minSdkVersion
-        targetSdkVersion 29
+        targetSdkVersion 33
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
     }

example/android/app/src/main/AndroidManifest.xml

@@ -13,19 +13,20 @@
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+
     <application
         android:name="${applicationName}"
-        android:label="amap_map_example"
+        android:icon="@mipmap/ic_launcher"
-        android:icon="@mipmap/ic_launcher">
+        android:label="amap_map_example">
         <!-- <meta-data
             android:name="com.amap.api.v2.apikey"
             android:value="900f72eeee0f21e435cebb0ef155582a" /> -->
         <activity
             android:name=".MainActivity"
-            android:launchMode="singleTop"
-            android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
             android:windowSoftInputMode="adjustResize">
             <!-- Specifies an Android theme to apply to this Activity as soon as
                  the Android process has started. This theme is visible to the user
@@ -33,8 +34,7 @@
                  to determine the Window background behind the Flutter UI. -->
             <meta-data
                 android:name="io.flutter.embedding.android.NormalTheme"
-              android:resource="@style/NormalTheme"
+                android:resource="@style/NormalTheme" />
-              />
             <!-- Displays an Android View that continues showing the launch screen
                  Drawable until Flutter paints its first frame, then this splash
                  screen fades out. A splash screen is useful to avoid any visual
@@ -42,8 +42,7 @@
                  Flutter's first frame. -->
             <meta-data
                 android:name="io.flutter.embedding.android.SplashScreenDrawable"
-              android:resource="@drawable/launch_background"
+                android:resource="@drawable/launch_background" />
-              />
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />

example/android/app/src/main/res/drawable/launch_background.xml

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?><!-- Modify this file to customize your launch splash screen -->
-<!-- Modify this file to customize your launch splash screen -->
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:drawable="@android:color/white" />
 

example/android/build.gradle

@@ -5,7 +5,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath 'com.android.tools.build:gradle:4.2.2'
     }
 }