migrating to androidX and adding setSelectedItem methode

app/build.gradle

@@ -20,9 +20,10 @@ android {
 }
 
 dependencies {
+
     implementation fileTree(include: ['*.jar'], dir: 'libs')
-    implementation 'com.android.support:appcompat-v7:28.0.0'
-    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

app/src/main/java/com/iammert/readablebottombar/MainActivity.kt

@@ -1,7 +1,7 @@
 package com.iammert.readablebottombar
 
-import android.support.v7.app.AppCompatActivity
 import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
 import com.iammert.library.readablebottombar.ConfigurationXmlParser
 
 class MainActivity : AppCompatActivity() {

library/build.gradle

@@ -28,7 +28,7 @@ android {
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
 
-    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'androidx.appcompat:appcompat:1.0.2'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

library/src/main/java/com/iammert/library/readablebottombar/BottomBarItem.kt

@@ -1,14 +1,14 @@
 package com.iammert.library.readablebottombar
 
 import android.graphics.drawable.Drawable
-import android.support.annotation.ColorInt
+import androidx.annotation.ColorInt
 import com.iammert.library.readablebottombar.ReadableBottomBar.ItemType
 
 data class BottomBarItem(
-    val index: Int,
-    val text: String,
-    val textSize: Float,
-    @ColorInt val textColor: Int,
-    val drawable: Drawable,
-    val type: ItemType
+        val index: Int,
+        val text: String,
+        val textSize: Float,
+        @ColorInt val textColor: Int,
+        val drawable: Drawable,
+        val type: ItemType
 )

library/src/main/java/com/iammert/library/readablebottombar/BottomBarItemView.kt

@@ -2,15 +2,15 @@ package com.iammert.library.readablebottombar
 
 import android.content.Context
 import android.graphics.drawable.Drawable
-import android.support.v7.widget.AppCompatImageView
-import android.support.v7.widget.AppCompatTextView
 import android.util.AttributeSet
 import android.view.LayoutInflater
 import android.view.View
 import android.view.animation.AccelerateDecelerateInterpolator
 import android.view.animation.Animation
 import android.view.animation.TranslateAnimation
 import android.widget.FrameLayout
+import androidx.appcompat.widget.AppCompatImageView
+import androidx.appcompat.widget.AppCompatTextView
 import com.iammert.library.readablebottombar.ReadableBottomBar.Companion.ANIMATION_DURATION
 import com.iammert.library.readablebottombar.ReadableBottomBar.ItemType
 

library/src/main/java/com/iammert/library/readablebottombar/ConfigurationXmlParser.kt

@@ -3,7 +3,7 @@ package com.iammert.library.readablebottombar
 import android.content.Context
 import android.content.res.XmlResourceParser
 import android.graphics.drawable.Drawable
-import android.support.v4.content.ContextCompat
+import androidx.core.content.ContextCompat
 import org.xmlpull.v1.XmlPullParserException
 
 class ConfigurationXmlParser(private val context: Context, xmlRes: Int) {

library/src/main/java/com/iammert/library/readablebottombar/ReadableBottomBar.kt

@@ -7,6 +7,7 @@ import android.util.AttributeSet
 import android.view.View
 import android.view.ViewTreeObserver
 import android.widget.LinearLayout
+import java.util.ArrayList
 
 class ReadableBottomBar @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0)
     : LinearLayout(context, attrs, defStyleAttr) {
@@ -27,6 +28,7 @@ class ReadableBottomBar @JvmOverloads constructor(context: Context, attrs: Attri
     }
 
     private val bottomBarItemList: List<BottomBarItem>
+    private val bottomBarViewItemList  =  ArrayList<BottomBarItemView>()
 
     private var tabInitialSelectedIndex = 0
     private var tabBackgroundColor: Int = Color.WHITE
@@ -75,12 +77,12 @@ class ReadableBottomBar @JvmOverloads constructor(context: Context, attrs: Attri
 
         bottomBarItemList = bottomBarItemConfigList.map { config ->
             BottomBarItem(
-                config.index,
-                config.text,
-                textSize,
-                textColor,
-                config.drawable,
-                activeItemType
+                    config.index,
+                    config.text,
+                    textSize,
+                    textColor,
+                    config.drawable,
+                    activeItemType
             )
         }
 
@@ -105,6 +107,12 @@ class ReadableBottomBar @JvmOverloads constructor(context: Context, attrs: Attri
         this.itemSelectListener = itemSelectListener
     }
 
+    fun setSelectedItem(position : Int){
+        getChildViewAt(position)?.callOnClick()
+    }
+
+    fun getChildViewAt(position : Int) = bottomBarViewItemList.getOrNull(position)
+
     private fun drawBottomBarItems() {
         val itemContainerLayout = LinearLayout(context).apply {
             layoutParams = LinearLayout.LayoutParams(layoutWidth.toInt(), layoutHeight.toInt())
@@ -138,7 +146,7 @@ class ReadableBottomBar @JvmOverloads constructor(context: Context, attrs: Attri
 
                 }
             }
-
+            bottomBarViewItemList.add(bottomBarItem)
             itemContainerLayout.addView(bottomBarItem)
 
             if (item.index == tabInitialSelectedIndex) {

library/src/main/res/layout/layout_bottombar_item.xml

@@ -3,14 +3,14 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
-    <android.support.v7.widget.AppCompatTextView
+    <androidx.appcompat.widget.AppCompatTextView
         android:id="@+id/textView"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:gravity="center"
         android:singleLine="true" />
 
-    <android.support.v7.widget.AppCompatImageView
+    <androidx.appcompat.widget.AppCompatImageView
         android:id="@+id/imageView"
         android:layout_width="match_parent"
         android:layout_height="match_parent"