Update gradle version

app/build.gradle

@@ -1,12 +1,10 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 22
-    buildToolsVersion '26.0.2'
+    compileSdkVersion 33
     defaultConfig {
-        applicationId "io.github.webbluetoothcg.bletestperipheral"
         minSdkVersion 21
-        targetSdkVersion 22
+        targetSdkVersion 33
         versionCode 10
         versionName '10.0'
     }
@@ -25,5 +23,5 @@ android {
 }
 
 dependencies {
-    compile fileTree(include: ['*.jar'], dir: 'libs')
-}
+    implementation fileTree(include: ['*.jar'], dir: 'libs')
+}

app/src/main/AndroidManifest.xml

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
+<?xml version="1.0" encoding="utf-8"?><!--
   Copyright 2015 Google Inc. All rights reserved.
 
   Licensed under the Apache License, Version 2.0 (the "License");
@@ -15,18 +14,19 @@
   limitations under the License.
 -->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="io.github.webbluetoothcg.bletestperipheral" >
+    package="io.github.webbluetoothcg.bletestperipheral">
 
-    <uses-permission android:name="android.permission.BLUETOOTH"/>
-    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
+    <uses-permission android:name="android.permission.BLUETOOTH" />
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
 
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
-        android:theme="@style/AppTheme" >
+        android:theme="@style/AppTheme">
         <activity
             android:name=".Peripherals"
+            android:exported="true"
             android:label="@string/app_name">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -35,9 +35,9 @@
             </intent-filter>
         </activity>
         <activity
-                android:name=".Peripheral"
-                android:label="@string/title_activity_peripheral"
-                android:parentActivityName=".Peripherals"/>
+            android:name=".Peripheral"
+            android:label="@string/title_activity_peripheral"
+            android:parentActivityName=".Peripherals" />
     </application>
 
 </manifest>

build.gradle

@@ -2,11 +2,12 @@
 
 buildscript {
     repositories {
-        jcenter()
+        mavenCentral()
+        google()
         maven { url 'https://maven.google.com' }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.0'
+        classpath 'com.android.tools.build:gradle:7.4.2'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -15,6 +16,7 @@ buildscript {
 
 allprojects {
     repositories {
-        jcenter()
+        mavenCentral()
+        google()
     }
-}
+}

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,5 @@
-#Tue Nov 07 13:33:09 AEDT 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-bin.zip
 zipStoreBase=GRADLE_USER_HOME
-zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+zipStorePath=wrapper/dists