diff --git a/README.md b/README.md
index ca16fef..fbcb121 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ allprojects {
 **Step 2.** Add the library dependency to your project build.gradle:
 ```
 dependencies {
-    implementation 'com.github.erkutaras:StateLayout:1.4.2'
+    implementation 'com.github.erkutaras:StateLayout:1.5.0'
 }
 ```
 
@@ -169,7 +169,7 @@ Patches and new features are encouraged, and may be submitted by [forking this p
 
 # License
 
-    Copyright 2018-2019 erkutaras
+    Copyright 2018-2020 erkutaras
 
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
diff --git a/build.gradle b/build.gradle
index 9dc9efe..0130468 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,13 +1,13 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.3.41'
+    ext.kotlin_version = '1.3.72'
     repositories {
         google()
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.2'
+        classpath 'com.android.tools.build:gradle:4.0.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1'
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index a1e6491..12995a0 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sun May 19 19:37:42 MSK 2019
+#Sun May 31 21:43:37 MSK 2020
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
diff --git a/library/build.gradle b/library/build.gradle
index 0919668..daa6fce 100644
--- a/library/build.gradle
+++ b/library/build.gradle
@@ -5,13 +5,13 @@ apply plugin: 'com.github.dcendents.android-maven'
 group='com.erkutaras.statelayout'
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion 29
 
     defaultConfig {
         minSdkVersion 14
-        targetSdkVersion 28
+        targetSdkVersion 29
         versionCode 24
-        versionName "1.4.2"
+        versionName "1.5.0"
 
         vectorDrawables.useSupportLibrary = true
     }
@@ -28,7 +28,7 @@ android {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.appcompat:appcompat:1.1.0'
 }
 repositories {
     mavenCentral()
diff --git a/library/src/main/java/com/erkutaras/statelayout/StateLayout.kt b/library/src/main/java/com/erkutaras/statelayout/StateLayout.kt
index 1d8b586..7724d04 100644
--- a/library/src/main/java/com/erkutaras/statelayout/StateLayout.kt
+++ b/library/src/main/java/com/erkutaras/statelayout/StateLayout.kt
@@ -200,14 +200,6 @@ class StateLayout @JvmOverloads constructor(context: Context,
         return info()
     }
 
-    @Deprecated("infoButtonListener(block: () -> Unit) calling is more convenient")
-    fun infoButtonListener(onStateLayoutListener: OnStateLayoutListener?): StateLayout {
-        infoLayout.findView<Button>(R.id.button_state_layout_info) {
-            setOnClickListener { onStateLayoutListener?.onStateLayoutInfoButtonClick() }
-        }
-        return info()
-    }
-
     fun infoButtonListener(block: () -> Unit) {
         infoLayout.findView<Button>(R.id.button_state_layout_info) {
             setOnClickListener { block.invoke() }
@@ -229,10 +221,10 @@ class StateLayout @JvmOverloads constructor(context: Context,
         return info()
     }
 
-    fun infoButton(buttonText: String, onStateLayoutListener: OnStateLayoutListener?): StateLayout {
+    fun infoButton(buttonText: String, block: (() -> Unit)?): StateLayout {
         infoLayout.findView<Button>(R.id.button_state_layout_info) {
             text = buttonText
-            setOnClickListener { onStateLayoutListener?.onStateLayoutInfoButtonClick() }
+            setOnClickListener { block?.invoke() }
             visibility = View.VISIBLE
         }
         return info()
@@ -299,7 +291,6 @@ class StateLayout @JvmOverloads constructor(context: Context,
                 stateInfo.infoTitle?.let { infoTitle(it) }
                 stateInfo.infoMessage?.let { infoMessage(it) }
                 stateInfo.infoButtonText?.let { infoButtonText(it) }
-                stateInfo.onStateLayoutListener?.let { infoButtonListener(it) }
                 stateInfo.onInfoButtonClick?.let { infoButtonListener(it) }
             }
             null, NONE -> hideAll()
@@ -329,10 +320,6 @@ class StateLayout @JvmOverloads constructor(context: Context,
         fun provideNoneStateInfo() = StateInfo(state = NONE)
     }
 
-    interface OnStateLayoutListener {
-        fun onStateLayoutInfoButtonClick()
-    }
-
     enum class State {
         LOADING, CONTENT, INFO, LOADING_WITH_CONTENT, ERROR, EMPTY, NONE
     }
@@ -342,9 +329,7 @@ class StateLayout @JvmOverloads constructor(context: Context,
         val infoTitle: String? = null,
         val infoMessage: String? = null,
         val infoButtonText: String? = null,
-        val state: StateLayout.State = INFO,
-        @Deprecated("onInfoButtonClick is more convenient")
-        val onStateLayoutListener: StateLayout.OnStateLayoutListener? = null,
+        val state: State = INFO,
         val onInfoButtonClick: (() -> Unit)? = null,
         val loadingAnimation: Animation? = null,
         val loadingWithContentAnimation: Animation? = null
diff --git a/sample/build.gradle b/sample/build.gradle
index 358b60e..53bfec7 100644
--- a/sample/build.gradle
+++ b/sample/build.gradle
@@ -3,11 +3,11 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion 29
     defaultConfig {
         applicationId "com.erkutaras.statelayout.sample"
         minSdkVersion 14
-        targetSdkVersion 28
+        targetSdkVersion 29
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
@@ -25,9 +25,9 @@ dependencies {
     implementation project(':library')
     implementation fileTree(include: ['*.jar'], dir: 'libs')
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.appcompat:appcompat:1.1.0'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
-    implementation 'com.google.android.material:material:1.1.0-alpha06'
-    implementation 'androidx.vectordrawable:vectordrawable:1.1.0-rc01'
+    implementation 'com.google.android.material:material:1.1.0'
+    implementation 'androidx.vectordrawable:vectordrawable:1.1.0'
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
 }
diff --git a/sample/src/main/AndroidManifest.xml b/sample/src/main/AndroidManifest.xml
index 4f64810..319949c 100644
--- a/sample/src/main/AndroidManifest.xml
+++ b/sample/src/main/AndroidManifest.xml
@@ -12,7 +12,8 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme"
-        tools:ignore="GoogleAppIndexingWarning">
+        android:usesCleartextTraffic="true"
+        tools:ignore="GoogleAppIndexingWarning,UnusedAttribute">
         <activity android:name=".StateLayoutSampleActivity"
                   android:label="StateLayout - Simple Usage">
             <intent-filter>
diff --git a/sample/src/main/java/com/erkutaras/statelayout/sample/AnimationLoadingSampleActivity.kt b/sample/src/main/java/com/erkutaras/statelayout/sample/AnimationLoadingSampleActivity.kt
index d5ecbc2..6ec892b 100644
--- a/sample/src/main/java/com/erkutaras/statelayout/sample/AnimationLoadingSampleActivity.kt
+++ b/sample/src/main/java/com/erkutaras/statelayout/sample/AnimationLoadingSampleActivity.kt
@@ -15,19 +15,21 @@ import kotlinx.android.synthetic.main.activity_state_layout_sample.*
  */
 private const val WEB_URL = "https://github.com/erkutaras"
 
-class AnimationLoadingSampleActivity : SampleBaseActivity(), StateLayout.OnStateLayoutListener {
+class AnimationLoadingSampleActivity : SampleBaseActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_animation_loading_sample)
 
-        webView.webViewClient = SampleWebViewClient(stateLayout, this)
+        webView.webViewClient = SampleWebViewClient(stateLayout) {
+            onStateLayoutInfoButtonClick()
+        }
         webView.loadUrl(WEB_URL)
     }
 
     override fun getMenuResId(): Int = R.menu.menu_animation_loading
 
-    override fun onStateLayoutInfoButtonClick() {
+    private fun onStateLayoutInfoButtonClick() {
         webView.loadUrl(WEB_URL)
         Toast.makeText(this, "Refreshing Page...", Toast.LENGTH_SHORT).show()
     }
@@ -38,7 +40,7 @@ class AnimationLoadingSampleActivity : SampleBaseActivity(), StateLayout.OnState
     }
 
     private class SampleWebViewClient(val stateLayout: StateLayout,
-                                      val onStateLayoutListener: StateLayout.OnStateLayoutListener)
+                                      val onClick: () -> Unit)
         : WebViewClient() {
 
         var hasError: Boolean = false
@@ -62,9 +64,7 @@ class AnimationLoadingSampleActivity : SampleBaseActivity(), StateLayout.OnState
                 .infoTitle("Ooops.... :(")
                 .infoMessage("Unexpected error occurred. Please refresh the page!")
                 .infoButtonText("Refresh")
-                .infoButtonListener {
-                    onStateLayoutListener.onStateLayoutInfoButtonClick()
-                }
+                .infoButtonListener(onClick)
         }
 
     }
diff --git a/sample/src/main/java/com/erkutaras/statelayout/sample/StateLayoutSampleActivity.kt b/sample/src/main/java/com/erkutaras/statelayout/sample/StateLayoutSampleActivity.kt
index e883022..35a9080 100644
--- a/sample/src/main/java/com/erkutaras/statelayout/sample/StateLayoutSampleActivity.kt
+++ b/sample/src/main/java/com/erkutaras/statelayout/sample/StateLayoutSampleActivity.kt
@@ -10,21 +10,21 @@ import android.widget.Toast
 import com.erkutaras.statelayout.StateLayout
 import kotlinx.android.synthetic.main.activity_state_layout_sample.*
 
-private const val WEB_URL = "http://www.erkutaras.com/"
+private const val WEB_URL = "https://www.erkutaras.com/"
 
-class StateLayoutSampleActivity : SampleBaseActivity(), StateLayout.OnStateLayoutListener {
+class StateLayoutSampleActivity : SampleBaseActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_state_layout_sample)
 
-        webView.webViewClient = SampleWebViewClient(stateLayout, this)
+        webView.webViewClient = SampleWebViewClient(stateLayout) { onStateLayoutInfoButtonClick() }
         webView.loadUrl(WEB_URL)
     }
 
     override fun getMenuResId(): Int = R.menu.menu_sample
 
-    override fun onStateLayoutInfoButtonClick() {
+    private fun onStateLayoutInfoButtonClick() {
         webView.loadUrl(WEB_URL)
         Toast.makeText(this, "Refreshing Page...", Toast.LENGTH_SHORT).show()
     }
@@ -35,7 +35,7 @@ class StateLayoutSampleActivity : SampleBaseActivity(), StateLayout.OnStateLayou
     }
 
     private class SampleWebViewClient(val stateLayout: StateLayout,
-                                      val onStateLayoutListener: StateLayout.OnStateLayoutListener)
+                                      val onClick: () -> Unit)
         : WebViewClient() {
 
         var hasError: Boolean = false
@@ -59,9 +59,7 @@ class StateLayoutSampleActivity : SampleBaseActivity(), StateLayout.OnStateLayou
                 .infoTitle("Ooops.... :(")
                 .infoMessage("Unexpected error occurred. Please refresh the page!")
                 .infoButtonText("Refresh")
-                .infoButtonListener {
-                    onStateLayoutListener.onStateLayoutInfoButtonClick()
-                }
+                .infoButtonListener(onClick)
         }
 
     }