upgrade targetSdk to 33 and upgrade minSdk to 21, replace jcenter with mavenCentral

Author: maher-linkdev

android/build.gradle

@@ -22,11 +22,11 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 30
+    compileSdkVersion 33
 
     defaultConfig {
-        minSdkVersion 16
-        targetSdkVersion 30
+        minSdkVersion 21
+        targetSdkVersion 33
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

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 30
+    compileSdkVersion 33
 
     lintOptions {
         disable 'InvalidPackage'
@@ -24,8 +24,8 @@ android {
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "flutter.plugins.contactsservice.contactsserviceexample"
-        minSdkVersion 16
-        targetSdkVersion 30
+        minSdkVersion 21
+        targetSdkVersion 33
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

example/android/build.gradle

@@ -1,7 +1,7 @@
 buildscript {
     repositories {
         google()
-        jcenter()
+        mavenCenteral()
     }
 
     dependencies {
@@ -12,7 +12,7 @@ buildscript {
 allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCenteral()
     }
 }