Migrate to androidx (#178)

* Initial refactor

* Remove alpha version usages

* Update test code

* Add tests for checkbox

* Fix invalid card import

* Remove more old support content

* Update kotlin version

* Add back kotterknife with new imports

* Update docs

* Use bold notice

* Add changelog

* Remove deprecation for kotterknife

* Remove unused dependencies

* Update changelog

29 files changed, 119 insertions, 169 deletions

diff --git a/core/src/androidTest/kotlin/ca/allanwang/kau/kpref/KPrefTest.kt b/core/src/androidTest/kotlin/ca/allanwang/kau/kpref/KPrefTest.kt
index 2a9263a..52f344b 100644
--- a/core/src/androidTest/kotlin/ca/allanwang/kau/kpref/KPrefTest.kt
+++ b/core/src/androidTest/kotlin/ca/allanwang/kau/kpref/KPrefTest.kt
@@ -1,9 +1,10 @@
 package ca.allanwang.kau.kpref
 
 import android.annotation.SuppressLint
-import android.support.test.InstrumentationRegistry
-import android.support.test.filters.MediumTest
-import android.support.test.runner.AndroidJUnit4
+import android.content.Context
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.filters.MediumTest
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
@@ -23,7 +24,7 @@ class KPrefTest {
     class TestPref : KPref() {
 
         init {
-            initialize(InstrumentationRegistry.getTargetContext(), "kpref_test_${System.currentTimeMillis()}")
+            initialize(ApplicationProvider.getApplicationContext<Context>(), "kpref_test_${System.currentTimeMillis()}")
         }
 
         var one by kpref("one", 1)
diff --git a/core/src/androidTest/kotlin/ca/allanwang/kau/utils/KotterknifeTest.kt b/core/src/androidTest/kotlin/ca/allanwang/kau/utils/KotterknifeTest.kt
index 1dac92f..13a3c77 100644
--- a/core/src/androidTest/kotlin/ca/allanwang/kau/utils/KotterknifeTest.kt
+++ b/core/src/androidTest/kotlin/ca/allanwang/kau/utils/KotterknifeTest.kt
@@ -1,12 +1,12 @@
 package ca.allanwang.kau.utils
 
 import android.content.Context
-import android.support.test.InstrumentationRegistry
-import android.support.test.filters.MediumTest
-import android.support.test.runner.AndroidJUnit4
 import android.view.View
 import android.widget.FrameLayout
 import android.widget.TextView
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.filters.MediumTest
+import androidx.test.platform.app.InstrumentationRegistry
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
@@ -25,7 +25,7 @@ class KotterknifeTest {
 
     @Before
     fun init() {
-        context = InstrumentationRegistry.getContext()
+        context = InstrumentationRegistry.getInstrumentation().context
     }
 
     @Test
diff --git a/core/src/androidTest/kotlin/ca/allanwang/kau/xml/FaqTest.kt b/core/src/androidTest/kotlin/ca/allanwang/kau/xml/FaqTest.kt
index f9ce24b..7a6d2e0 100644
--- a/core/src/androidTest/kotlin/ca/allanwang/kau/xml/FaqTest.kt
+++ b/core/src/androidTest/kotlin/ca/allanwang/kau/xml/FaqTest.kt
@@ -1,8 +1,10 @@
 package ca.allanwang.kau.xml
 
-import android.support.test.InstrumentationRegistry
-import android.support.test.filters.MediumTest
-import android.support.test.runner.AndroidJUnit4
+import android.content.Context
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.filters.MediumTest
+import ca.allanwang.kau.test.R
 import org.junit.Test
 import org.junit.runner.RunWith
 import kotlin.test.assertEquals
@@ -14,9 +16,12 @@ import kotlin.test.assertEquals
 @MediumTest
 class FaqTest {
 
+    val context: Context
+        get() = ApplicationProvider.getApplicationContext<Context>()
+
     @Test
     fun simpleTest() {
-        InstrumentationRegistry.getTargetContext().kauParseFaq(R.xml.test_faq) { data ->
+        context.kauParseFaq(R.xml.test_faq) { data ->
             assertEquals(2, data.size, "FAQ size is incorrect")
             assertEquals("1. This is a question", data.first().question.toString(), "First question does not match")
             assertEquals("This is an answer", data.first().answer.toString(), "First answer does not match")
@@ -27,7 +32,7 @@ class FaqTest {
 
     @Test
     fun withoutNumbering() {
-        InstrumentationRegistry.getTargetContext().kauParseFaq(R.xml.test_faq, false) { data ->
+        context.kauParseFaq(R.xml.test_faq, false) { data ->
             assertEquals(2, data.size, "FAQ size is incorrect")
             assertEquals("This is a question", data.first().question.toString(), "First question does not match")
             assertEquals("This is an answer", data.first().answer.toString(), "First answer does not match")
diff --git a/core/src/main/kotlin/ca/allanwang/kau/email/EmailBuilder.kt b/core/src/main/kotlin/ca/allanwang/kau/email/EmailBuilder.kt
index dbdcf09..0184b9a 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/email/EmailBuilder.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/email/EmailBuilder.kt
@@ -6,7 +6,7 @@ import android.content.Intent
 import android.content.pm.PackageManager
 import android.net.Uri
 import android.os.Build
-import android.support.annotation.StringRes
+import androidx.annotation.StringRes
 import android.util.DisplayMetrics
 import ca.allanwang.kau.R
 import ca.allanwang.kau.logging.KL
diff --git a/core/src/main/kotlin/ca/allanwang/kau/internal/KauBaseActivity.kt b/core/src/main/kotlin/ca/allanwang/kau/internal/KauBaseActivity.kt
index 87d94ce..c71761d 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/internal/KauBaseActivity.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/internal/KauBaseActivity.kt
@@ -1,6 +1,6 @@
 package ca.allanwang.kau.internal
 
-import android.support.v7.app.AppCompatActivity
+import androidx.appcompat.app.AppCompatActivity
 import ca.allanwang.kau.permissions.kauOnRequestPermissionsResult
 
 /**
diff --git a/core/src/main/kotlin/ca/allanwang/kau/kotlin/LazyContext.kt b/core/src/main/kotlin/ca/allanwang/kau/kotlin/LazyContext.kt
index 0a45b65..3d98633 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/kotlin/LazyContext.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/kotlin/LazyContext.kt
@@ -1,8 +1,8 @@
 package ca.allanwang.kau.kotlin
 
 import android.content.Context
-import android.support.annotation.AnimRes
-import android.support.annotation.InterpolatorRes
+import androidx.annotation.AnimRes
+import androidx.annotation.InterpolatorRes
 import android.view.animation.Animation
 import android.view.animation.AnimationUtils
 import android.view.animation.Interpolator
diff --git a/core/src/main/kotlin/ca/allanwang/kau/permissions/PermissionManager.kt b/core/src/main/kotlin/ca/allanwang/kau/permissions/PermissionManager.kt
index 36456ec..922dc09 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/permissions/PermissionManager.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/permissions/PermissionManager.kt
@@ -3,7 +3,7 @@ package ca.allanwang.kau.permissions
 import android.app.Activity
 import android.content.Context
 import android.content.pm.PackageManager
-import android.support.v4.app.ActivityCompat
+import androidx.core.app.ActivityCompat
 import ca.allanwang.kau.kotlin.lazyContext
 import ca.allanwang.kau.logging.KL
 import ca.allanwang.kau.utils.KauException
diff --git a/core/src/main/kotlin/ca/allanwang/kau/permissions/Permissions.kt b/core/src/main/kotlin/ca/allanwang/kau/permissions/Permissions.kt
index 248e484..83cd2ed 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/permissions/Permissions.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/permissions/Permissions.kt
@@ -4,7 +4,7 @@ import android.Manifest
 import android.app.Activity
 import android.content.Context
 import android.os.Build
-import android.support.annotation.RequiresApi
+import androidx.annotation.RequiresApi
 
 
 /**
diff --git a/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackLayout.kt b/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackLayout.kt
index a323e6c..4d7142c 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackLayout.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackLayout.kt
@@ -4,7 +4,7 @@ import android.annotation.SuppressLint
 import android.app.Activity
 import android.content.Context
 import android.graphics.Canvas
-import android.support.v4.view.ViewCompat
+import androidx.core.view.ViewCompat
 import android.util.AttributeSet
 import android.view.MotionEvent
 import android.view.View
diff --git a/core/src/main/kotlin/ca/allanwang/kau/swipe/ViewDragHelper.java b/core/src/main/kotlin/ca/allanwang/kau/swipe/ViewDragHelper.java
index 566e9e5..ac7fb7e 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/swipe/ViewDragHelper.java
+++ b/core/src/main/kotlin/ca/allanwang/kau/swipe/ViewDragHelper.java
@@ -1,7 +1,7 @@
 package ca.allanwang.kau.swipe;
 
 import android.content.Context;
-import android.support.v4.view.ViewCompat;
+import androidx.core.view.ViewCompat;
 import android.util.Log;
 import android.view.MotionEvent;
 import android.view.VelocityTracker;
@@ -25,7 +25,7 @@ import static ca.allanwang.kau.swipe.SwipeBackHelperKt.SWIPE_EDGE_TOP;
  * of useful operations and state tracking for allowing a user to drag and reposition
  * views within their parent ViewGroup.
  * <p>
- * This is an extension of {@link android.support.v4.widget.ViewDragHelper}
+ * This is an extension of {@link androidx.core.widget.ViewDragHelper}
  * Along with additional methods defined in {@link ViewDragHelperExtras}
  */
 class ViewDragHelper implements ViewDragHelperExtras {
diff --git a/core/src/main/kotlin/ca/allanwang/kau/ui/SimpleRippleDrawable.kt b/core/src/main/kotlin/ca/allanwang/kau/ui/SimpleRippleDrawable.kt
index b92b222..4700162 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/ui/SimpleRippleDrawable.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/ui/SimpleRippleDrawable.kt
@@ -4,8 +4,8 @@ import android.content.res.ColorStateList
 import android.graphics.drawable.ColorDrawable
 import android.graphics.drawable.RippleDrawable
 import android.os.Build
-import android.support.annotation.ColorInt
-import android.support.annotation.RequiresApi
+import androidx.annotation.ColorInt
+import androidx.annotation.RequiresApi
 import ca.allanwang.kau.utils.adjustAlpha
 
 /**
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/ActivityUtils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/ActivityUtils.kt
index ab0e59f..eab9536 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/ActivityUtils.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/ActivityUtils.kt
@@ -11,13 +11,13 @@ import android.content.Intent
 import android.graphics.Color
 import android.os.Build
 import android.os.Bundle
-import android.support.annotation.ColorInt
-import android.support.annotation.RequiresApi
-import android.support.annotation.StringRes
-import android.support.design.widget.Snackbar
 import android.view.Menu
 import android.view.View
+import androidx.annotation.ColorInt
+import androidx.annotation.RequiresApi
+import androidx.annotation.StringRes
 import ca.allanwang.kau.R
+import com.google.android.material.snackbar.Snackbar
 import com.mikepenz.iconics.typeface.IIcon
 import org.jetbrains.anko.contentView
 
@@ -135,9 +135,13 @@ fun Context.setMenuIcons(menu: Menu, @ColorInt color: Int = Color.WHITE, vararg
     }
 }
 
-inline fun Activity.hideKeyboard() = currentFocus.hideKeyboard()
+inline fun Activity.hideKeyboard() {
+    currentFocus?.hideKeyboard()
+}
 
-inline fun Activity.showKeyboard() = currentFocus.showKeyboard()
+inline fun Activity.showKeyboard() {
+    currentFocus?.showKeyboard()
+}
 
 inline fun Activity.snackbar(text: String, duration: Int = Snackbar.LENGTH_LONG, noinline builder: Snackbar.() -> Unit = {}) = contentView!!.snackbar(text, duration, builder)
 
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/AnimHolder.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/AnimHolder.kt
index 2767f04..b988085 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/AnimHolder.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/AnimHolder.kt
@@ -1,7 +1,7 @@
 package ca.allanwang.kau.utils
 
 import android.os.Build
-import android.support.annotation.RequiresApi
+import androidx.annotation.RequiresApi
 import ca.allanwang.kau.kotlin.lazyInterpolator
 
 /**
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/AnimUtils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/AnimUtils.kt
index a287cf2..d8e4681 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/AnimUtils.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/AnimUtils.kt
@@ -3,7 +3,7 @@ package ca.allanwang.kau.utils
 import android.animation.Animator
 import android.animation.AnimatorListenerAdapter
 import android.annotation.SuppressLint
-import android.support.annotation.StringRes
+import androidx.annotation.StringRes
 import android.view.View
 import android.view.ViewAnimationUtils
 import android.view.ViewPropertyAnimator
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/BundleUtils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/BundleUtils.kt
index 82cd577..d628214 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/BundleUtils.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/BundleUtils.kt
@@ -5,7 +5,7 @@ import android.app.Activity
 import android.app.ActivityOptions
 import android.content.Context
 import android.os.Bundle
-import android.support.annotation.AnimRes
+import androidx.annotation.AnimRes
 import android.util.Pair
 import android.view.View
 import ca.allanwang.kau.R
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/ColorUtils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/ColorUtils.kt
index 236f2ca..f010c6f 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/ColorUtils.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/ColorUtils.kt
@@ -7,12 +7,12 @@ import android.graphics.Color
 import android.graphics.PorterDuff
 import android.graphics.drawable.Drawable
 import android.os.Build
-import android.support.annotation.ColorInt
-import android.support.annotation.FloatRange
-import android.support.annotation.IntRange
-import android.support.v4.graphics.drawable.DrawableCompat
-import android.support.v7.widget.AppCompatEditText
-import android.support.v7.widget.Toolbar
+import androidx.annotation.ColorInt
+import androidx.annotation.FloatRange
+import androidx.annotation.IntRange
+import androidx.core.graphics.drawable.DrawableCompat
+import androidx.appcompat.widget.AppCompatEditText
+import androidx.appcompat.widget.Toolbar
 import android.widget.*
 import com.afollestad.materialdialogs.R
 import java.util.*
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/Const.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/Const.kt
index 1eeac1a..eb09093 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/Const.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/Const.kt
@@ -1,6 +1,7 @@
 package ca.allanwang.kau.utils
 
-import android.support.v4.widget.ViewDragHelper
+import androidx.customview.widget.ViewDragHelper
+
 
 /**
  * Created by Allan Wang on 2017-06-08.
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt
index 6568bf2..f6e9ac7 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt
@@ -11,8 +11,8 @@ import android.content.pm.PackageManager
 import android.graphics.drawable.Drawable
 import android.net.Uri
 import android.os.Bundle
-import android.support.annotation.*
-import android.support.v4.content.ContextCompat
+import androidx.annotation.*
+import androidx.core.content.ContextCompat
 import android.util.TypedValue
 import android.view.View
 import android.view.animation.AnimationUtils
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/DrawableUtils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/DrawableUtils.kt
index dae3bff..59e684a 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/DrawableUtils.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/DrawableUtils.kt
@@ -2,8 +2,8 @@ package ca.allanwang.kau.utils
 
 import android.content.res.ColorStateList
 import android.graphics.drawable.Drawable
-import android.support.annotation.ColorInt
-import android.support.v4.graphics.drawable.DrawableCompat
+import androidx.annotation.ColorInt
+import androidx.core.graphics.drawable.DrawableCompat
 
 /**
  * Wrap the color into a state and tint the drawable
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/FragmentUtils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/FragmentUtils.kt
index acc71f2..f99b342 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/FragmentUtils.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/FragmentUtils.kt
@@ -1,6 +1,6 @@
 package ca.allanwang.kau.utils
 
-import android.support.v4.app.Fragment
+import androidx.fragment.app.Fragment
 import org.jetbrains.anko.bundleOf
 
 /**
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/IIconUtils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/IIconUtils.kt
index 51691af..66c56f8 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/IIconUtils.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/IIconUtils.kt
@@ -4,7 +4,7 @@ import android.content.Context
 import android.content.res.ColorStateList
 import android.graphics.Color
 import android.graphics.drawable.Drawable
-import android.support.annotation.ColorInt
+import androidx.annotation.ColorInt
 import com.mikepenz.iconics.IconicsDrawable
 import com.mikepenz.iconics.typeface.IIcon
 
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/Kotterknife.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/Kotterknife.kt
index 8c7c039..3cbd93d 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/Kotterknife.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/Kotterknife.kt
@@ -1,4 +1,4 @@
-@file:Suppress("UNCHECKED_CAST")
+@file:Suppress("UNCHECKED_CAST", "DEPRECATION")
 
 package ca.allanwang.kau.utils
 
@@ -8,146 +8,118 @@ package ca.allanwang.kau.utils
  * Courtesy of Jake Wharton
  *
  * https://github.com/JakeWharton/kotterknife/blob/master/src/main/kotlin/kotterknife/ButterKnife.kt
+ *
+ * Note that while this is useful for binding ids, there also exists other alternatives, such as
+ * `kotlin-android-extensions`.
+ *
+ * For fragments, make sure that the views are reset after the fragment lifecycle.
  */
 import android.app.Activity
 import android.app.Dialog
 import android.app.DialogFragment
 import android.app.Fragment
-import android.support.v7.widget.RecyclerView.ViewHolder
 import android.view.View
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView.ViewHolder
 import java.util.*
 import kotlin.properties.ReadOnlyProperty
 import kotlin.reflect.KProperty
-import android.support.v4.app.DialogFragment as SupportDialogFragment
-import android.support.v4.app.Fragment as SupportFragment
+import androidx.fragment.app.DialogFragment as SupportDialogFragment
+import androidx.fragment.app.Fragment as SupportFragment
 
-private const val DEPRECATION_MESSAGE = "Kotterknife will be removed in favour of the kotlin_android_extensions plugin"
-
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> View.bindView(id: Int)
         : ReadOnlyProperty<View, V> = required(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Activity.bindView(id: Int)
         : ReadOnlyProperty<Activity, V> = required(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Dialog.bindView(id: Int)
         : ReadOnlyProperty<Dialog, V> = required(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> DialogFragment.bindView(id: Int)
         : ReadOnlyProperty<DialogFragment, V> = required(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportDialogFragment.bindView(id: Int)
-        : ReadOnlyProperty<android.support.v4.app.DialogFragment, V> = required(id, viewFinder)
+        : ReadOnlyProperty<SupportDialogFragment, V> = required(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Fragment.bindView(id: Int)
         : ReadOnlyProperty<Fragment, V> = required(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportFragment.bindView(id: Int)
-        : ReadOnlyProperty<android.support.v4.app.Fragment, V> = required(id, viewFinder)
+        : ReadOnlyProperty<SupportFragment, V> = required(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
-fun <V : View> ViewHolder.bindView(id: Int)
-        : ReadOnlyProperty<ViewHolder, V> = required(id, viewFinder)
+fun <V : View> RecyclerView.ViewHolder.bindView(id: Int)
+        : ReadOnlyProperty<RecyclerView.ViewHolder, V> = required(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> View.bindOptionalView(id: Int)
         : ReadOnlyProperty<View, V?> = optional(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Activity.bindOptionalView(id: Int)
         : ReadOnlyProperty<Activity, V?> = optional(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Dialog.bindOptionalView(id: Int)
         : ReadOnlyProperty<Dialog, V?> = optional(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> DialogFragment.bindOptionalView(id: Int)
         : ReadOnlyProperty<DialogFragment, V?> = optional(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportDialogFragment.bindOptionalView(id: Int)
-        : ReadOnlyProperty<android.support.v4.app.DialogFragment, V?> = optional(id, viewFinder)
+        : ReadOnlyProperty<SupportDialogFragment, V?> = optional(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Fragment.bindOptionalView(id: Int)
         : ReadOnlyProperty<Fragment, V?> = optional(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportFragment.bindOptionalView(id: Int)
-        : ReadOnlyProperty<android.support.v4.app.Fragment, V?> = optional(id, viewFinder)
+        : ReadOnlyProperty<SupportFragment, V?> = optional(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
-fun <V : View> ViewHolder.bindOptionalView(id: Int)
-        : ReadOnlyProperty<ViewHolder, V?> = optional(id, viewFinder)
+fun <V : View> RecyclerView.ViewHolder.bindOptionalView(id: Int)
+        : ReadOnlyProperty<RecyclerView.ViewHolder, V?> = optional(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> View.bindViews(vararg ids: Int)
         : ReadOnlyProperty<View, List<V>> = required(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Activity.bindViews(vararg ids: Int)
         : ReadOnlyProperty<Activity, List<V>> = required(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Dialog.bindViews(vararg ids: Int)
         : ReadOnlyProperty<Dialog, List<V>> = required(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> DialogFragment.bindViews(vararg ids: Int)
         : ReadOnlyProperty<DialogFragment, List<V>> = required(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportDialogFragment.bindViews(vararg ids: Int)
-        : ReadOnlyProperty<android.support.v4.app.DialogFragment, List<V>> = required(ids, viewFinder)
+        : ReadOnlyProperty<SupportDialogFragment, List<V>> = required(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Fragment.bindViews(vararg ids: Int)
         : ReadOnlyProperty<Fragment, List<V>> = required(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportFragment.bindViews(vararg ids: Int)
-        : ReadOnlyProperty<android.support.v4.app.Fragment, List<V>> = required(ids, viewFinder)
+        : ReadOnlyProperty<SupportFragment, List<V>> = required(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> ViewHolder.bindViews(vararg ids: Int)
         : ReadOnlyProperty<ViewHolder, List<V>> = required(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> View.bindOptionalViews(vararg ids: Int)
         : ReadOnlyProperty<View, List<V>> = optional(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Activity.bindOptionalViews(vararg ids: Int)
         : ReadOnlyProperty<Activity, List<V>> = optional(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Dialog.bindOptionalViews(vararg ids: Int)
         : ReadOnlyProperty<Dialog, List<V>> = optional(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> DialogFragment.bindOptionalViews(vararg ids: Int)
         : ReadOnlyProperty<DialogFragment, List<V>> = optional(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportDialogFragment.bindOptionalViews(vararg ids: Int)
-        : ReadOnlyProperty<android.support.v4.app.DialogFragment, List<V>> = optional(ids, viewFinder)
+        : ReadOnlyProperty<SupportDialogFragment, List<V>> = optional(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Fragment.bindOptionalViews(vararg ids: Int)
         : ReadOnlyProperty<Fragment, List<V>> = optional(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportFragment.bindOptionalViews(vararg ids: Int)
-        : ReadOnlyProperty<android.support.v4.app.Fragment, List<V>> = optional(ids, viewFinder)
+        : ReadOnlyProperty<SupportFragment, List<V>> = optional(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> ViewHolder.bindOptionalViews(vararg ids: Int)
         : ReadOnlyProperty<ViewHolder, List<V>> = optional(ids, viewFinder)
 
@@ -189,13 +161,13 @@ private fun <T, V : View> optional(ids: IntArray, finder: T.(Int) -> View?) = La
 private open class Lazy<in T, out V>(private val initializer: (T, KProperty<*>) -> V) : ReadOnlyProperty<T, V> {
     protected object EMPTY
 
-    protected var value: Any? = EMPTY
+protected var value: Any? = EMPTY
 
-    override fun getValue(thisRef: T, property: KProperty<*>): V {
+override fun getValue(thisRef: T, property: KProperty<*>): V {
         if (value == EMPTY)
             value = initializer(thisRef, property)
 
-        return value as V
+return value as V
     }
 }
 
@@ -209,133 +181,101 @@ private open class Lazy<in T, out V>(private val initializer: (T, KProperty<*>)
  * Credits to <a href="https://github.com/MichaelRocks">MichaelRocks</a>
  */
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> View.bindViewResettable(id: Int)
         : ReadOnlyProperty<View, V> = requiredResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Activity.bindViewResettable(id: Int)
         : ReadOnlyProperty<Activity, V> = requiredResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Dialog.bindViewResettable(id: Int)
         : ReadOnlyProperty<Dialog, V> = requiredResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> DialogFragment.bindViewResettable(id: Int)
         : ReadOnlyProperty<DialogFragment, V> = requiredResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportDialogFragment.bindViewResettable(id: Int)
-        : ReadOnlyProperty<android.support.v4.app.DialogFragment, V> = requiredResettable(id, viewFinder)
+        : ReadOnlyProperty<SupportDialogFragment, V> = requiredResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Fragment.bindViewResettable(id: Int)
         : ReadOnlyProperty<Fragment, V> = requiredResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportFragment.bindViewResettable(id: Int)
-        : ReadOnlyProperty<android.support.v4.app.Fragment, V> = requiredResettable(id, viewFinder)
+        : ReadOnlyProperty<SupportFragment, V> = requiredResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> ViewHolder.bindViewResettable(id: Int)
         : ReadOnlyProperty<ViewHolder, V> = requiredResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> View.bindOptionalViewResettable(id: Int)
         : ReadOnlyProperty<View, V?> = optionalResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Activity.bindOptionalViewResettable(id: Int)
         : ReadOnlyProperty<Activity, V?> = optionalResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Dialog.bindOptionalViewResettable(id: Int)
         : ReadOnlyProperty<Dialog, V?> = optionalResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> DialogFragment.bindOptionalViewResettable(id: Int)
         : ReadOnlyProperty<DialogFragment, V?> = optionalResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportDialogFragment.bindOptionalViewResettable(id: Int)
-        : ReadOnlyProperty<android.support.v4.app.DialogFragment, V?> = optionalResettable(id, viewFinder)
+        : ReadOnlyProperty<SupportDialogFragment, V?> = optionalResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Fragment.bindOptionalViewResettable(id: Int)
         : ReadOnlyProperty<Fragment, V?> = optionalResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportFragment.bindOptionalViewResettable(id: Int)
-        : ReadOnlyProperty<android.support.v4.app.Fragment, V?> = optionalResettable(id, viewFinder)
+        : ReadOnlyProperty<SupportFragment, V?> = optionalResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> ViewHolder.bindOptionalViewResettable(id: Int)
         : ReadOnlyProperty<ViewHolder, V?> = optionalResettable(id, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> View.bindViewsResettable(vararg ids: Int)
         : ReadOnlyProperty<View, List<V>> = requiredResettable(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Activity.bindViewsResettable(vararg ids: Int)
         : ReadOnlyProperty<Activity, List<V>> = requiredResettable(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Dialog.bindViewsResettable(vararg ids: Int)
         : ReadOnlyProperty<Dialog, List<V>> = requiredResettable(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> DialogFragment.bindViewsResettable(vararg ids: Int)
         : ReadOnlyProperty<DialogFragment, List<V>> = requiredResettable(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportDialogFragment.bindViewsResettable(vararg ids: Int)
-        : ReadOnlyProperty<android.support.v4.app.DialogFragment, List<V>> = requiredResettable(ids, viewFinder)
+        : ReadOnlyProperty<SupportDialogFragment, List<V>> = requiredResettable(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Fragment.bindViewsResettable(vararg ids: Int)
         : ReadOnlyProperty<Fragment, List<V>> = requiredResettable(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportFragment.bindViewsResettable(vararg ids: Int)
-        : ReadOnlyProperty<android.support.v4.app.Fragment, List<V>> = requiredResettable(ids, viewFinder)
+        : ReadOnlyProperty<SupportFragment, List<V>> = requiredResettable(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> ViewHolder.bindViewsResettable(vararg ids: Int)
         : ReadOnlyProperty<ViewHolder, List<V>> = requiredResettable(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> View.bindOptionalViewsResettable(vararg ids: Int)
         : ReadOnlyProperty<View, List<V>> = optionalResettable(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Activity.bindOptionalViewsResettable(vararg ids: Int)
         : ReadOnlyProperty<Activity, List<V>> = optionalResettable(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Dialog.bindOptionalViewsResettable(vararg ids: Int)
         : ReadOnlyProperty<Dialog, List<V>> = optionalResettable(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> DialogFragment.bindOptionalViewsResettable(vararg ids: Int)
         : ReadOnlyProperty<DialogFragment, List<V>> = optionalResettable(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportDialogFragment.bindOptionalViewsResettable(vararg ids: Int)
-        : ReadOnlyProperty<android.support.v4.app.DialogFragment, List<V>> = optionalResettable(ids, viewFinder)
+        : ReadOnlyProperty<SupportDialogFragment, List<V>> = optionalResettable(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> Fragment.bindOptionalViewsResettable(vararg ids: Int)
         : ReadOnlyProperty<Fragment, List<V>> = optionalResettable(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> SupportFragment.bindOptionalViewsResettable(vararg ids: Int)
-        : ReadOnlyProperty<android.support.v4.app.Fragment, List<V>> = optionalResettable(ids, viewFinder)
+        : ReadOnlyProperty<SupportFragment, List<V>> = optionalResettable(ids, viewFinder)
 
-@Deprecated(DEPRECATION_MESSAGE)
 fun <V : View> ViewHolder.bindOptionalViewsResettable(vararg ids: Int)
-        : ReadOnlyProperty<ViewHolder, List<V>> = optionalResettable(ids, viewFinder)
+        : ReadOnlyProperty<RecyclerView.ViewHolder, List<V>> = optionalResettable(ids, viewFinder)
 
 private fun <T, V : View> requiredResettable(id: Int, finder: T.(Int) -> View?) = LazyResettable { t: T, desc ->
     (t.finder(id) as V?)?.apply { } ?: viewNotFound(id, desc)
@@ -358,12 +298,11 @@ private class LazyResettable<in T, out V>(initializer: (T, KProperty<*>) -> V) :
         return super.getValue(thisRef, property)
     }
 
-    fun reset() {
+fun reset() {
         value = EMPTY
     }
 }
 
-@Deprecated(DEPRECATION_MESSAGE)
 object Kotterknife {
     fun reset(target: Any) {
         KotterknifeRegistry.reset(target)
@@ -373,7 +312,7 @@ object Kotterknife {
 private object KotterknifeRegistry {
     private val lazyMap = WeakHashMap<Any, MutableCollection<LazyResettable<*, *>>>()
 
-    fun register(target: Any, lazy: LazyResettable<*, *>) = lazyMap.getOrPut(target, { Collections.newSetFromMap(WeakHashMap()) }).add(lazy)
+fun register(target: Any, lazy: LazyResettable<*, *>) = lazyMap.getOrPut(target, { Collections.newSetFromMap(WeakHashMap()) }).add(lazy)
 
-    fun reset(target: Any) = lazyMap[target]?.forEach(LazyResettable<*, *>::reset)
+fun reset(target: Any) = lazyMap[target]?.forEach(LazyResettable<*, *>::reset)
 }
\ No newline at end of file
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/NotificationUtils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/NotificationUtils.kt
index 1eb0076..016f3d2 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/NotificationUtils.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/NotificationUtils.kt
@@ -1,7 +1,7 @@
 package ca.allanwang.kau.utils
 
 import android.content.Context
-import android.support.v4.app.NotificationManagerCompat
+import androidx.core.app.NotificationManagerCompat
 
 
 /**
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/RecyclerUtils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/RecyclerUtils.kt
index 3a34db5..1c336f9 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/RecyclerUtils.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/RecyclerUtils.kt
@@ -1,8 +1,8 @@
 package ca.allanwang.kau.utils
 
 import android.graphics.Rect
-import android.support.v7.widget.RecyclerView
 import android.view.View
+import androidx.recyclerview.widget.RecyclerView
 
 /**
  * Created by Allan Wang on 2017-07-11.
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/TransitionUtils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/TransitionUtils.kt
index ec206ee..1d12fd3 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/TransitionUtils.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/TransitionUtils.kt
@@ -1,14 +1,14 @@
 package ca.allanwang.kau.utils
 
 import android.os.Build
-import android.support.annotation.RequiresApi
-import android.support.annotation.TransitionRes
-import android.support.transition.AutoTransition
-import android.support.transition.TransitionInflater
-import android.support.transition.TransitionManager
+import androidx.annotation.RequiresApi
+import androidx.annotation.TransitionRes
+import androidx.transition.AutoTransition
+import androidx.transition.TransitionInflater
+import androidx.transition.TransitionManager
 import android.transition.Transition
 import android.view.ViewGroup
-import android.support.transition.Transition as SupportTransition
+import androidx.transition.Transition as SupportTransition
 
 /**
  * Created by Allan Wang on 2017-06-24.
@@ -52,7 +52,7 @@ fun ViewGroup.transitionAuto(builder: AutoTransition.() -> Unit = {}) {
 }
 
 @KauUtils
-fun ViewGroup.transitionDelayed(@TransitionRes id: Int, builder: android.support.transition.Transition.() -> Unit = {}) {
+fun ViewGroup.transitionDelayed(@TransitionRes id: Int, builder: androidx.transition.Transition.() -> Unit = {}) {
     if (!buildIsLollipopAndUp) return
     val transition = TransitionInflater.from(context).inflateTransition(id)
     transition.builder()
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/Utils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/Utils.kt
index 46e29b2..c8d5d2a 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/Utils.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/Utils.kt
@@ -8,7 +8,7 @@ import android.graphics.drawable.BitmapDrawable
 import android.graphics.drawable.Drawable
 import android.os.Handler
 import android.os.Looper
-import android.support.annotation.IntRange
+import androidx.annotation.IntRange
 import ca.allanwang.kau.R
 import java.math.RoundingMode
 import java.text.DecimalFormat
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/ViewUtils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/ViewUtils.kt
index 4e020bc..956df48 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/ViewUtils.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/ViewUtils.kt
@@ -7,15 +7,10 @@ import android.annotation.SuppressLint
 import android.content.Context
 import android.graphics.Color
 import android.os.Build
-import android.support.annotation.ColorInt
-import android.support.annotation.ColorRes
-import android.support.annotation.RequiresApi
-import android.support.annotation.StringRes
-import android.support.design.widget.FloatingActionButton
-import android.support.design.widget.Snackbar
-import android.support.design.widget.TextInputEditText
-import android.support.v7.widget.LinearLayoutManager
-import android.support.v7.widget.RecyclerView
+import androidx.annotation.ColorInt
+import androidx.annotation.ColorRes
+import androidx.annotation.RequiresApi
+import androidx.annotation.StringRes
 import android.view.LayoutInflater
 import android.view.MotionEvent
 import android.view.View
@@ -23,7 +18,12 @@ import android.view.ViewGroup
 import android.view.inputmethod.InputMethodManager
 import android.widget.EditText
 import android.widget.ImageView
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
 import ca.allanwang.kau.ui.createSimpleRippleDrawable
+import com.google.android.material.floatingactionbutton.FloatingActionButton
+import com.google.android.material.snackbar.Snackbar
+import com.google.android.material.textfield.TextInputEditText
 import com.mikepenz.iconics.IconicsDrawable
 import com.mikepenz.iconics.typeface.IIcon
 
@@ -291,7 +291,7 @@ fun FloatingActionButton.hideOnDownwardsScroll(recycler: RecyclerView) {
     recycler.addOnScrollListener(object : RecyclerView.OnScrollListener() {
 
         override fun onScrollStateChanged(recyclerView: RecyclerView, newState: Int) {
-            if (newState == android.support.v7.widget.RecyclerView.SCROLL_STATE_IDLE && !isShown) show()
+            if (newState == RecyclerView.SCROLL_STATE_IDLE && !isShown) show()
         }
 
         override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
diff --git a/core/src/main/kotlin/ca/allanwang/kau/xml/Changelog.kt b/core/src/main/kotlin/ca/allanwang/kau/xml/Changelog.kt
index 28d51a4..3955a77 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/xml/Changelog.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/xml/Changelog.kt
@@ -2,14 +2,14 @@ package ca.allanwang.kau.xml
 
 import android.content.Context
 import android.content.res.XmlResourceParser
-import android.support.annotation.ColorInt
-import android.support.annotation.LayoutRes
-import android.support.annotation.XmlRes
-import android.support.v7.widget.RecyclerView
+import androidx.annotation.ColorInt
+import androidx.annotation.LayoutRes
+import androidx.annotation.XmlRes
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
 import ca.allanwang.kau.R
 import ca.allanwang.kau.utils.materialDialog
 import ca.allanwang.kau.utils.use
diff --git a/core/src/main/kotlin/ca/allanwang/kau/xml/FAQ.kt b/core/src/main/kotlin/ca/allanwang/kau/xml/FAQ.kt
index 7caf5d6..bbe9425 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/xml/FAQ.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/xml/FAQ.kt
@@ -2,7 +2,7 @@ package ca.allanwang.kau.xml
 
 import android.content.Context
 import android.content.res.XmlResourceParser
-import android.support.annotation.XmlRes
+import androidx.annotation.XmlRes
 import android.text.Html
 import android.text.Spanned
 import ca.allanwang.kau.utils.use