diff --git a/.gitignore b/.gitignore
index 7ecebb4..a5304a0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+.idea
 .DS_Store
 .dart_tool/
 
diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
deleted file mode 100644
index 30aa626..0000000
--- a/.idea/codeStyles/Project.xml
+++ /dev/null
@@ -1,29 +0,0 @@
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\ No newline at end of file
diff --git a/.idea/libraries/Dart_SDK.xml b/.idea/libraries/Dart_SDK.xml
deleted file mode 100644
index 198919e..0000000
--- a/.idea/libraries/Dart_SDK.xml
+++ /dev/null
@@ -1,19 +0,0 @@
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\ No newline at end of file
diff --git a/.idea/libraries/Flutter_Plugins.xml b/.idea/libraries/Flutter_Plugins.xml
deleted file mode 100644
index 53449da..0000000
--- a/.idea/libraries/Flutter_Plugins.xml
+++ /dev/null
@@ -1,9 +0,0 @@
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\ No newline at end of file
diff --git a/.idea/libraries/Flutter_for_Android.xml b/.idea/libraries/Flutter_for_Android.xml
deleted file mode 100644
index ac24036..0000000
--- a/.idea/libraries/Flutter_for_Android.xml
+++ /dev/null
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diff --git a/.idea/misc.xml b/.idea/misc.xml
deleted file mode 100644
index b3d52f2..0000000
--- a/.idea/misc.xml
+++ /dev/null
@@ -1,29 +0,0 @@
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diff --git a/.idea/modules.xml b/.idea/modules.xml
deleted file mode 100644
index aab32e0..0000000
--- a/.idea/modules.xml
+++ /dev/null
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diff --git a/.idea/runConfigurations/example_lib_main_dart.xml b/.idea/runConfigurations/example_lib_main_dart.xml
deleted file mode 100644
index 5fd9159..0000000
--- a/.idea/runConfigurations/example_lib_main_dart.xml
+++ /dev/null
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diff --git a/.idea/vcs.xml b/.idea/vcs.xml
deleted file mode 100644
index 94a25f7..0000000
--- a/.idea/vcs.xml
+++ /dev/null
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\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
deleted file mode 100644
index bfd77b7..0000000
--- a/.idea/workspace.xml
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@@ -1,787 +0,0 @@
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-        <state relative-caret-position="1234">
-          <caret line="365" column="44" lean-forward="false" selection-start-line="365" selection-start-column="44" selection-end-line="365" selection-end-column="44" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/../../flutter/.pub-cache/hosted/pub.flutter-io.cn/vector_math-2.0.6/lib/src/vector_math_64/vector3.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="-181">
-          <caret line="7" column="6" lean-forward="false" selection-start-line="7" selection-start-column="6" selection-end-line="7" selection-end-column="6" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/../../flutter/.pub-cache/hosted/pub.flutter-io.cn/vector_math-2.0.6/lib/src/vector_math_64/matrix4.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="158">
-          <caret line="1119" column="5" lean-forward="false" selection-start-line="1119" selection-start-column="5" selection-end-line="1119" selection-end-column="5" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/../../flutter/packages/flutter/lib/src/services/platform_channel.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="138">
-          <caret line="277" column="0" lean-forward="false" selection-start-line="277" selection-start-column="0" selection-end-line="277" selection-end-column="0" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/lib/src/location.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="101">
-          <caret line="11" column="25" lean-forward="false" selection-start-line="11" selection-start-column="25" selection-end-line="11" selection-end-column="25" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/../../flutter/packages/flutter/lib/src/widgets/pages.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="-1370">
-          <caret line="10" column="15" lean-forward="false" selection-start-line="10" selection-start-column="15" selection-end-line="10" selection-end-column="15" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/../../flutter/packages/flutter/lib/src/material/page.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="158">
-          <caret line="98" column="21" lean-forward="false" selection-start-line="98" selection-start-column="8" selection-end-line="98" selection-end-column="21" />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/android/src/main/java/com/jzoom/flutteramap/AMapView.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="90">
-          <caret line="10" column="0" lean-forward="true" selection-start-line="10" selection-start-column="0" selection-end-line="10" selection-end-column="0" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/android/src/main/java/com/jzoom/flutteramap/AMapActivity.java">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="222">
-          <caret line="20" column="5" lean-forward="false" selection-start-line="20" selection-start-column="5" selection-end-line="20" selection-end-column="5" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/lib/flutter_amap.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="150">
-          <caret line="25" column="16" lean-forward="false" selection-start-line="25" selection-start-column="16" selection-end-line="25" selection-end-column="16" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/ROADMAP.md">
-      <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
-        <state split_layout="SPLIT">
-          <first_editor relative-caret-position="0">
-            <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
-            <folding />
-          </first_editor>
-          <second_editor />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/flutter_amap.iml">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="0">
-          <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/flutter_amap_android.iml">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="0">
-          <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/README.md">
-      <provider selected="true" editor-type-id="split-provider[text-editor;markdown-preview-editor]">
-        <state split_layout="SPLIT">
-          <first_editor relative-caret-position="103">
-            <caret line="32" column="23" lean-forward="false" selection-start-line="32" selection-start-column="23" selection-end-line="32" selection-end-column="23" />
-            <folding />
-          </first_editor>
-          <second_editor />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/example/lib/second_page.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="286">
-          <caret line="30" column="20" lean-forward="false" selection-start-line="30" selection-start-column="20" selection-end-line="30" selection-end-column="20" />
-          <folding>
-            <element signature="e#0#39#0" expanded="false" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/../../flutter/packages/flutter/lib/src/widgets/overlay.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="-1328">
-          <caret line="54" column="6" lean-forward="false" selection-start-line="54" selection-start-column="6" selection-end-line="54" selection-end-column="6" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/../../flutter/packages/flutter/lib/src/material/app.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="279">
-          <caret line="89" column="53" lean-forward="false" selection-start-line="89" selection-start-column="36" selection-end-line="89" selection-end-column="53" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/../../flutter/packages/flutter/lib/src/widgets/navigator.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="119">
-          <caret line="319" column="6" lean-forward="false" selection-start-line="319" selection-start-column="6" selection-end-line="319" selection-end-column="6" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/example/lib/main.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="-1323">
-          <caret line="26" column="0" lean-forward="true" selection-start-line="26" selection-start-column="0" selection-end-line="26" selection-end-column="0" />
-          <folding>
-            <element signature="e#0#39#0" expanded="true" />
-          </folding>
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/lib/src/amap_view.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="159">
-          <caret line="372" column="36" lean-forward="true" selection-start-line="372" selection-start-column="36" selection-end-line="372" selection-end-column="36" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/../../flutter/packages/flutter/lib/src/widgets/framework.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="159">
-          <caret line="1849" column="9" lean-forward="false" selection-start-line="1849" selection-start-column="9" selection-end-line="1849" selection-end-column="9" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/../../flutter/packages/flutter/lib/src/rendering/object.dart">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="218">
-          <caret line="2568" column="5" lean-forward="true" selection-start-line="2568" selection-start-column="5" selection-end-line="2568" selection-end-column="5" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-  </component>
-</project>
\ No newline at end of file
diff --git a/android/build.gradle b/android/build.gradle
index d7e7fff..25b6f6b 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -8,7 +8,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.5.0'
     }
 }
 
@@ -22,17 +22,17 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 27
+    compileSdkVersion 28
 
     defaultConfig {
         minSdkVersion 16
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
     lintOptions {
         disable 'InvalidPackage'
     }
 }
 dependencies {
-    compile 'com.amap.api:3dmap:6.0.0'
-    compile 'com.android.support:appcompat-v7:27.1.1'
+    implementation 'com.amap.api:3dmap:6.0.0'
+    implementation 'androidx.appcompat:appcompat:1.0.2'
 }
\ No newline at end of file
diff --git a/android/src/main/java/com/jzoom/flutteramap/AMapActivity.java b/android/src/main/java/com/jzoom/flutteramap/AMapActivity.java
index c5fced6..782ef3d 100644
--- a/android/src/main/java/com/jzoom/flutteramap/AMapActivity.java
+++ b/android/src/main/java/com/jzoom/flutteramap/AMapActivity.java
@@ -1,8 +1,9 @@
 package com.jzoom.flutteramap;
 
 import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v7.app.AppCompatActivity;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
 
 public class AMapActivity extends AppCompatActivity {
 
diff --git a/example/android/.gitignore b/example/android/.gitignore
index 65b7315..32a2d32 100644
--- a/example/android/.gitignore
+++ b/example/android/.gitignore
@@ -1,3 +1,4 @@
+.idea
 *.iml
 *.class
 .gradle
diff --git a/example/android/.idea/caches/build_file_checksums.ser b/example/android/.idea/caches/build_file_checksums.ser
deleted file mode 100644
index ee5696d..0000000
Binary files a/example/android/.idea/caches/build_file_checksums.ser and /dev/null differ
diff --git a/example/android/.idea/codeStyles/Project.xml b/example/android/.idea/codeStyles/Project.xml
deleted file mode 100644
index 30aa626..0000000
--- a/example/android/.idea/codeStyles/Project.xml
+++ /dev/null
@@ -1,29 +0,0 @@
-<component name="ProjectCodeStyleConfiguration">
-  <code_scheme name="Project" version="173">
-    <Objective-C-extensions>
-      <file>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Import" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Macro" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Typedef" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Enum" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Constant" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Global" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Struct" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="FunctionPredecl" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Function" />
-      </file>
-      <class>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Property" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Synthesize" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InitMethod" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="StaticMethod" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InstanceMethod" />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="DeallocMethod" />
-      </class>
-      <extensions>
-        <pair source="cpp" header="h" fileNamingConvention="NONE" />
-        <pair source="c" header="h" fileNamingConvention="NONE" />
-      </extensions>
-    </Objective-C-extensions>
-  </code_scheme>
-</component>
\ No newline at end of file
diff --git a/example/android/.idea/gradle.xml b/example/android/.idea/gradle.xml
deleted file mode 100644
index 2d66ad5..0000000
--- a/example/android/.idea/gradle.xml
+++ /dev/null
@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="GradleSettings">
-    <option name="linkedExternalProjectsSettings">
-      <GradleProjectSettings>
-        <option name="distributionType" value="DEFAULT_WRAPPED" />
-        <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="modules">
-          <set>
-            <option value="$PROJECT_DIR$/../../android" />
-            <option value="$PROJECT_DIR$" />
-            <option value="$PROJECT_DIR$/app" />
-          </set>
-        </option>
-        <option name="resolveModulePerSourceSet" value="false" />
-      </GradleProjectSettings>
-    </option>
-  </component>
-</project>
\ No newline at end of file
diff --git a/example/android/.idea/misc.xml b/example/android/.idea/misc.xml
deleted file mode 100644
index 99202cc..0000000
--- a/example/android/.idea/misc.xml
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="NullableNotNullManager">
-    <option name="myDefaultNullable" value="android.support.annotation.Nullable" />
-    <option name="myDefaultNotNull" value="android.support.annotation.NonNull" />
-    <option name="myNullables">
-      <value>
-        <list size="5">
-          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.Nullable" />
-          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nullable" />
-          <item index="2" class="java.lang.String" itemvalue="javax.annotation.CheckForNull" />
-          <item index="3" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.Nullable" />
-          <item index="4" class="java.lang.String" itemvalue="android.support.annotation.Nullable" />
-        </list>
-      </value>
-    </option>
-    <option name="myNotNulls">
-      <value>
-        <list size="4">
-          <item index="0" class="java.lang.String" itemvalue="org.jetbrains.annotations.NotNull" />
-          <item index="1" class="java.lang.String" itemvalue="javax.annotation.Nonnull" />
-          <item index="2" class="java.lang.String" itemvalue="edu.umd.cs.findbugs.annotations.NonNull" />
-          <item index="3" class="java.lang.String" itemvalue="android.support.annotation.NonNull" />
-        </list>
-      </value>
-    </option>
-  </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/build/classes" />
-  </component>
-  <component name="ProjectType">
-    <option name="id" value="Android" />
-  </component>
-</project>
\ No newline at end of file
diff --git a/example/android/.idea/modules.xml b/example/android/.idea/modules.xml
deleted file mode 100644
index e878fcf..0000000
--- a/example/android/.idea/modules.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/android.iml" filepath="$PROJECT_DIR$/android.iml" />
-      <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
-      <module fileurl="file://$PROJECT_DIR$/../../android/flutter_amap.iml" filepath="$PROJECT_DIR$/../../android/flutter_amap.iml" />
-    </modules>
-  </component>
-</project>
\ No newline at end of file
diff --git a/example/android/.idea/runConfigurations.xml b/example/android/.idea/runConfigurations.xml
deleted file mode 100644
index 7f68460..0000000
--- a/example/android/.idea/runConfigurations.xml
+++ /dev/null
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="RunConfigurationProducerService">
-    <option name="ignoredProducers">
-      <set>
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
-      </set>
-    </option>
-  </component>
-</project>
\ No newline at end of file
diff --git a/example/android/app/build.gradle b/example/android/app/build.gradle
index 7ad40b0..f323a6c 100644
--- a/example/android/app/build.gradle
+++ b/example/android/app/build.gradle
@@ -15,7 +15,7 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 27
+    compileSdkVersion 28
 
     lintOptions {
         disable 'InvalidPackage'
@@ -40,10 +40,10 @@ android {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "com.jzoom.flutteramapexample"
         minSdkVersion 16
-        targetSdkVersion 27
+        targetSdkVersion 28
         versionCode 1
         versionName "1.0"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 
 
     }
@@ -67,6 +67,7 @@ flutter {
 
 dependencies {
     testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'com.android.support.test:runner:1.0.1'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+    implementation 'androidx.appcompat:appcompat:1.0.2'
+    androidTestImplementation 'androidx.test:runner:1.2.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
 }
diff --git a/example/android/app/src/main/AndroidManifest.xml b/example/android/app/src/main/AndroidManifest.xml
index c29b746..bb52d25 100644
--- a/example/android/app/src/main/AndroidManifest.xml
+++ b/example/android/app/src/main/AndroidManifest.xml
@@ -1,4 +1,5 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="com.jzoom.flutteramapexample">
 
     <!-- The INTERNET permission is required for development. Specifically,
@@ -15,9 +16,6 @@
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
     <uses-permission android:name="android.permission.CHANGE_CONFIGURATION" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
-     
-
-
     <!-- io.flutter.app.FlutterApplication is an android.app.Application that
          calls FlutterMain.startInitialization(this); in its onCreate method.
          In most cases you can leave this as-is, but you if you want to provide
@@ -26,7 +24,8 @@
     <application
         android:name="io.flutter.app.FlutterApplication"
         android:label="flutter_amap_example"
-        android:icon="@mipmap/ic_launcher">
+        android:icon="@mipmap/ic_launcher"
+        tools:ignore="GoogleAppIndexingWarning">
         <meta-data
             android:name="com.amap.api.v2.apikey"
             android:value="9f583b6d4c5a1f05120fbde2c117d18b" />
@@ -52,6 +51,7 @@
             </intent-filter>
         </activity>
 
-        <activity android:name="com.jzoom.flutteramap.AMapActivity" android:theme="@style/Theme.AppCompat.Light.DarkActionBar"/>
+        <activity android:name="com.jzoom.flutteramap.AMapActivity"
+            android:theme="@style/Theme.AppCompat.Light.DarkActionBar"/>
     </application>
 </manifest>
diff --git a/example/android/build.gradle b/example/android/build.gradle
index 4476887..e0d7ae2 100644
--- a/example/android/build.gradle
+++ b/example/android/build.gradle
@@ -5,7 +5,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.5.0'
     }
 }
 
diff --git a/example/android/gradle/wrapper/gradle-wrapper.properties b/example/android/gradle/wrapper/gradle-wrapper.properties
index aa901e1..b7b5706 100644
--- a/example/android/gradle/wrapper/gradle-wrapper.properties
+++ b/example/android/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Fri Jun 23 08:50:38 CEST 2017
+#Fri Aug 30 16:05:43 BRT 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip