finish migration to androidx

Author: tckmn

build.gradle

@@ -26,10 +26,10 @@ repositories {
 }
 
 dependencies {
-    implementation 'com.android.support:preference-v7:28.0.0'
-    implementation 'com.android.support:appcompat-v7:28.0.0'
-    implementation 'com.android.support:support-core-ui:28.0.0'
-    implementation 'com.android.support:design:28.0.0'
+    implementation 'androidx.preference:preference:1.0.0'
+    implementation 'androidx.appcompat:appcompat:1.0.0'
+    implementation 'androidx.legacy:legacy-support-core-ui:1.0.0'
+    implementation 'com.google.android.material:material:1.0.0-rc01'
 }
 
 android {

gradle.properties

@@ -0,0 +1,2 @@
+android.useAndroidX=true
+android.enableJetifier=true

src/main/res/layout/activity_main.xml

@@ -6,12 +6,12 @@
     android:layout_height="match_parent"
     android:orientation="vertical">
 
-    <android.support.design.widget.TabLayout
+    <com.google.android.material.tabs.TabLayout
         android:id="@+id/tabs"
         android:layout_width="match_parent"
         android:layout_height="wrap_content" />
 
-    <android.support.v4.view.ViewPager
+    <androidx.viewpager.widget.ViewPager
         android:id="@+id/pager"
         android:layout_width="match_parent"
         android:layout_height="0dp"