feat: Upgrade to build gradle 7.0.2

app/build.gradle

@@ -1,15 +1,14 @@
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
-apply plugin: 'kotlin-android-extensions'
 apply plugin: 'kotlin-kapt'
 
 android {
-    compileSdkVersion 29
-    buildToolsVersion "29.0.2"
+    compileSdkVersion 31
+    buildToolsVersion "31.0.0"
     defaultConfig {
         applicationId "com.github.adriankuta"
         minSdkVersion 23
-        targetSdkVersion 29
+        targetSdkVersion 31
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
@@ -20,6 +19,9 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+    buildFeatures {
+        viewBinding true
+    }
     dataBinding {
         enabled = true
     }
@@ -28,11 +30,11 @@ android {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
-    implementation 'androidx.appcompat:appcompat:1.1.0'
-    implementation 'androidx.core:core-ktx:1.1.0'
-    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'androidx.appcompat:appcompat:1.3.1'
+    implementation 'androidx.core:core-ktx:1.6.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
     implementation 'com.github.adriankuta:expandable-recyclerView:1.0.0'
-    testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
 }

app/src/main/AndroidManifest.xml

@@ -9,7 +9,8 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".MainActivity">
+        <activity android:name=".MainActivity"
+            android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 

app/src/main/java/com/github/adriankuta/MainActivity.kt

@@ -4,15 +4,17 @@ import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
+import com.github.adriankuta.databinding.ActivityMainBinding
 import com.github.adriankuta.expandable_recyclerview.expandableTree
-import kotlinx.android.synthetic.main.activity_main.*
 
 class MainActivity : AppCompatActivity() {
 
+    private lateinit var binding: ActivityMainBinding
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
-
+        binding = ActivityMainBinding.inflate(layoutInflater)
 
         val tree = expandableTree("World") {
             child("North America") {
@@ -29,10 +31,12 @@ class MainActivity : AppCompatActivity() {
             }
         }
 
-        val adapter = ExpandableAdapter()
-        recyclerView.layoutManager = LinearLayoutManager(this, RecyclerView.VERTICAL, false)
-        recyclerView.adapter = adapter
+        with(binding) {
+            val adapter = ExpandableAdapter()
+            recyclerView.layoutManager = LinearLayoutManager(this@MainActivity, RecyclerView.VERTICAL, false)
+            recyclerView.adapter = adapter
 
-        adapter.setTree(tree)
+            adapter.setTree(tree)
+        }
     }
 }

app/src/main/res/layout/item_level_1.xml

@@ -14,7 +14,8 @@
         xmlns:app="http://schemas.android.com/apk/res-auto"
         xmlns:tools="http://schemas.android.com/tools"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content">
+        android:layout_height="wrap_content"
+        tools:viewBindingIgnore="true">
 
         <ImageView
             android:id="@+id/expand_icon"

app/src/main/res/layout/item_level_2.xml

@@ -2,6 +2,7 @@
 <layout>
 
     <data>
+
         <variable
             name="node"
             type="com.github.adriankuta.expandable_recyclerview.ExpandableTreeNode&lt;String>" />
@@ -13,7 +14,8 @@
         xmlns:app="http://schemas.android.com/apk/res-auto"
         xmlns:tools="http://schemas.android.com/tools"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content">
+        android:layout_height="wrap_content"
+        tools:viewBindingIgnore="true">
 
         <ImageView
             android:id="@+id/expand_icon"

app/src/main/res/layout/item_level_3.xml

@@ -2,6 +2,7 @@
 <layout>
 
     <data>
+
         <variable
             name="node"
             type="com.github.adriankuta.expandable_recyclerview.ExpandableTreeNode&lt;String>" />
@@ -13,7 +14,8 @@
         xmlns:app="http://schemas.android.com/apk/res-auto"
         xmlns:tools="http://schemas.android.com/tools"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content">
+        android:layout_height="wrap_content"
+        tools:viewBindingIgnore="true">
 
         <ImageView
             android:id="@+id/expand_icon"
@@ -33,12 +35,12 @@
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:padding="8dp"
-            app:layout_goneMarginStart="96dp"
             android:text="@{node.value}"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toEndOf="@id/expand_icon"
             app:layout_constraintTop_toTopOf="parent"
+            app:layout_goneMarginStart="96dp"
             tools:text="@tools:sample/full_names" />
     </androidx.constraintlayout.widget.ConstraintLayout>
 </layout>