Update gradle version

permission_handler/android/build.gradle

 group 'com.baseflow.permissionhandler'
-version '1.0-SNAPSHOT'
+version '1.0'
 def args = ["-Xlint:deprecation","-Xlint:unchecked","-Werror"]
 
 buildscript {
     repositories {
         google()
-        jcenter()
-        maven { url 'https://maven.google.com' }
+        mavenCentral()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.2'
+        classpath 'com.android.tools.build:gradle:4.1.0'
     }
 }
 
 rootProject.allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 }
 
@@ -30,24 +29,12 @@ apply plugin: 'com.android.library'
 android {
     compileSdkVersion 31
 
-    defaultConfig {
-        minSdkVersion 16
-        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
-    }
-    lintOptions {
-        disable 'InvalidPackage'
-    }
     compileOptions {
-        sourceCompatibility = '1.8'
-        targetCompatibility = '1.8'
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
     }
-}
 
-dependencies {
-    implementation 'androidx.annotation:annotation:1.2.0'
-    implementation 'androidx.core:core:1.6.0'
-}
-
-repositories {
-    google()
+    defaultConfig {
+        minSdkVersion 16
+    }
 }
\ No newline at end of file

permission_handler/example/android/app/build.gradle

@@ -27,11 +27,13 @@ apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 android {
     compileSdkVersion 31
 
-    lintOptions {
-        disable 'InvalidPackage'
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
     }
 
     defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "com.baseflow.permissionhandler.example"
         minSdkVersion 16
         targetSdkVersion 31

permission_handler/example/android/build.gradle

 buildscript {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.2'
+        classpath 'com.android.tools.build:gradle:4.1.0'
     }
 }
 
 allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 }
 
 rootProject.buildDir = '../build'
 subprojects {
     project.buildDir = "${rootProject.buildDir}/${project.name}"
-}
-subprojects {
     project.evaluationDependsOn(':app')
 }
 

permission_handler/example/android/gradle.properties

 org.gradle.jvmargs=-Xmx1536M
-android.enableJetifier=true
 android.useAndroidX=true
+android.enableJetifier=true

permission_handler/example/android/gradle/wrapper/gradle-wrapper.properties

-#Thu May 16 14:57:52 BST 2019
+#Fri Jun 23 08:50:38 CEST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-all.zip