Testing about activity and chained adapters

21 files changed, 674 insertions, 188 deletions

diff --git a/library/progress-proguard.txt b/library/progress-proguard.txt
index a68e6b0..8b13789 100644
--- a/library/progress-proguard.txt
+++ b/library/progress-proguard.txt
@@ -1,5 +1 @@
-# About library
--keep class .R
--keep class **.R$* {
-    <fields>;
-}
+
diff --git a/library/src/main/kotlin/ca/allanwang/kau/about/AboutActivity.kt b/library/src/main/kotlin/ca/allanwang/kau/about/AboutActivity.kt
deleted file mode 100644
index ce81c29..0000000
--- a/library/src/main/kotlin/ca/allanwang/kau/about/AboutActivity.kt
+++ /dev/null
@@ -1,33 +0,0 @@
-package ca.allanwang.kau.about
-
-import android.os.Bundle
-import android.support.v7.app.AppCompatActivity
-import android.support.v7.widget.RecyclerView
-import android.support.v7.widget.Toolbar
-import android.view.animation.Animation
-import android.view.animation.AnimationUtils
-import ca.allanwang.kau.R
-import ca.allanwang.kau.utils.bindView
-import ca.allanwang.kau.views.TextSlider
-
-/**
- * Created by Allan Wang on 2017-06-26.
- */
-open class AboutActivity : AppCompatActivity() {
-
-    val toolbar: Toolbar by bindView(R.id.kau_toolbar)
-    val toolbarText: TextSlider by bindView(R.id.kau_toolbar_text)
-    val recycler: RecyclerView by bindView(R.id.kau_recycler)
-
-    protected val SLIDE_IN_UP: Animation by lazy { AnimationUtils.loadAnimation(this, R.anim.kau_slide_in_top) }
-    protected val SLIDE_IN_DOWN: Animation by lazy { AnimationUtils.loadAnimation(this, R.anim.kau_slide_in_bottom) }
-
-    protected val SLIDE_OUT_UP: Animation by lazy { AnimationUtils.loadAnimation(this, R.anim.kau_slide_out_top) }
-    protected val SLIDE_OUT_DOWN: Animation by lazy { AnimationUtils.loadAnimation(this, R.anim.kau_slide_out_bottom) }
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.kau_activity_about)
-
-    }
-}
\ No newline at end of file
diff --git a/library/src/main/kotlin/ca/allanwang/kau/about/AboutActivityBase.kt b/library/src/main/kotlin/ca/allanwang/kau/about/AboutActivityBase.kt
new file mode 100644
index 0000000..f469028
--- /dev/null
+++ b/library/src/main/kotlin/ca/allanwang/kau/about/AboutActivityBase.kt
@@ -0,0 +1,86 @@
+package ca.allanwang.kau.about
+
+import android.os.Bundle
+import android.os.PersistableBundle
+import android.support.v7.app.AppCompatActivity
+import android.support.v7.widget.RecyclerView
+import android.support.v7.widget.Toolbar
+import ca.allanwang.kau.R
+import ca.allanwang.kau.adapters.ChainedAdapters
+import ca.allanwang.kau.logging.KL
+import ca.allanwang.kau.utils.bindView
+import ca.allanwang.kau.utils.string
+import ca.allanwang.kau.views.KauTextSlider
+import com.mikepenz.aboutlibraries.Libs
+import com.mikepenz.aboutlibraries.entity.Library
+import com.mikepenz.fastadapter.adapters.HeaderAdapter
+import com.mikepenz.fastadapter.adapters.ItemAdapter
+import org.jetbrains.anko.doAsync
+import org.jetbrains.anko.uiThread
+
+/**
+ * Created by Allan Wang on 2017-06-26.
+ *
+ * Customizable About Activity
+ * Will automatically include a section containing all of the libraries registered under About Libraries
+ * Takes in [rClass], which is the R.string::class.java for your app
+ * It is used to get the libs dynamically
+ * Make sure to add the following if you are using proguard:
+ * # About library
+ *      -keep class .R
+ *      -keep class **.R$* {
+ *      <fields>;
+ * }
+ *
+ */
+open class AboutActivityBase(val rClass: Class<*>) : AppCompatActivity() {
+
+    val toolbar: Toolbar by bindView(R.id.kau_toolbar)
+    val toolbarText: KauTextSlider by bindView(R.id.kau_toolbar_text)
+    val recycler: RecyclerView by bindView(R.id.kau_recycler)
+    val libSection: Pair<String, HeaderAdapter<LibraryItem>> by lazy { string(R.string.kau_dependencies_used) to HeaderAdapter<LibraryItem>() }
+    val sectionsChain: ChainedAdapters<String> = ChainedAdapters()
+
+    fun addLibsAsync() {
+        doAsync {
+            val libs = Libs(this@AboutActivityBase, Libs.toStringArray(rClass.fields))
+            val items = getLibraries(libs)
+            uiThread {
+                KL.e("Coun ${items.count()}")
+                libSection.second.add(items.map { LibraryItem(it) })
+            }
+        }
+    }
+
+    /**
+     * By default, the libraries will be extracted dynamically and sorted
+     * Override this to define your own list
+     */
+    open fun getLibraries(libs: Libs): List<Library> = libs.prepareLibraries(this@AboutActivityBase, null, null, true, true)
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.kau_activity_about)
+        val sections = onCreateSections()
+        sectionsChain.add(sections)
+        if (!sections.contains(libSection)) sectionsChain.add(libSection)
+        sectionsChain.bindRecyclerView(recycler) {
+            item, _, dy ->
+            if (dy > 0) toolbarText.setNextText(item)
+            else toolbarText.setPrevText()
+        }
+        toolbarText.setCurrentText(sectionsChain[0].first)
+    }
+
+    override fun onPostCreate(savedInstanceState: Bundle?, persistentState: PersistableBundle?) {
+        super.onPostCreate(savedInstanceState, persistentState)
+        addLibsAsync()
+    }
+
+    /**
+     * Get all the header adapters
+     * The adapters should be listed in the order that they appear,
+     * and if the [libSection] shouldn't be at the end, it should be added in this list
+     */
+    open fun onCreateSections(): List<Pair<String, HeaderAdapter<*>>> = listOf(libSection)
+}
\ No newline at end of file
diff --git a/library/src/main/kotlin/ca/allanwang/kau/about/LibraryItem.kt b/library/src/main/kotlin/ca/allanwang/kau/about/LibraryItem.kt
new file mode 100644
index 0000000..560eb82
--- /dev/null
+++ b/library/src/main/kotlin/ca/allanwang/kau/about/LibraryItem.kt
@@ -0,0 +1,73 @@
+package ca.allanwang.kau.about
+
+/**
+ * Created by Allan Wang on 2017-06-27.
+ */
+
+import android.os.Build
+import android.support.v7.widget.CardView
+import android.support.v7.widget.RecyclerView
+import android.text.Html
+import android.view.View
+import android.widget.LinearLayout
+import android.widget.TextView
+import ca.allanwang.kau.R
+import ca.allanwang.kau.utils.bindView
+import ca.allanwang.kau.utils.gone
+import ca.allanwang.kau.utils.visible
+import com.mikepenz.aboutlibraries.entity.Library
+import com.mikepenz.fastadapter.items.AbstractItem
+
+
+/**
+ * Created by mikepenz on 28.12.15.
+ */
+class LibraryItem(val lib: Library) : AbstractItem<LibraryItem, LibraryItem.ViewHolder>() {
+
+    override fun getType(): Int = R.id.kau_item_about_library
+
+    override fun getLayoutRes(): Int = R.layout.kau_about_item_library
+
+    override fun isSelectable(): Boolean = false
+
+    override fun bindView(holder: ViewHolder, payloads: MutableList<Any>?) {
+        super.bindView(holder, payloads)
+        with(holder) {
+            name.text = lib.libraryName
+            creator.text = lib.author
+            description.text = if (lib.libraryDescription.isBlank()) lib.libraryDescription
+            else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
+                Html.fromHtml(lib.libraryDescription, Html.FROM_HTML_MODE_LEGACY)
+            else Html.fromHtml(lib.libraryDescription)
+            bottomDivider.gone()
+            bottomContainer.gone()
+            if (lib.libraryVersion?.isNotBlank() ?: false) {
+                bottomDivider.visible()
+                bottomContainer.visible()
+                version.text = lib.libraryVersion
+            }
+            if (lib.license?.licenseName?.isNotBlank() ?: false) {
+                bottomDivider.visible()
+                bottomContainer.visible()
+                license.text = lib.license?.licenseName
+            }
+        }
+    }
+
+
+    override fun getViewHolder(v: View): ViewHolder = ViewHolder(v)
+
+    class ViewHolder(v: View) : RecyclerView.ViewHolder(v) {
+        val card: CardView by bindView(R.id.rippleForegroundListenerView)
+        val name: TextView by bindView(R.id.libraryName)
+        val creator: TextView by bindView(R.id.libraryCreator)
+        val description: TextView by bindView(R.id.libraryDescription)
+        val version: TextView by bindView(R.id.libraryVersion)
+        val license: TextView by bindView(R.id.libraryLicense)
+        val bottomContainer: LinearLayout by bindView(R.id.libraryBottomContainer)
+
+        val divider: View by bindView(R.id.libraryDescriptionDivider)
+        val bottomDivider: View by bindView(R.id.libraryBottomDivider)
+    }
+
+}
\ No newline at end of file
diff --git a/library/src/main/kotlin/ca/allanwang/kau/about/MainItem.kt b/library/src/main/kotlin/ca/allanwang/kau/about/MainItem.kt
new file mode 100644
index 0000000..decacfc
--- /dev/null
+++ b/library/src/main/kotlin/ca/allanwang/kau/about/MainItem.kt
@@ -0,0 +1,59 @@
+package ca.allanwang.kau.about
+
+import android.graphics.drawable.Drawable
+import android.support.v7.widget.CardView
+import android.support.v7.widget.RecyclerView
+import android.view.View
+import android.widget.LinearLayout
+import android.widget.TextView
+import ca.allanwang.kau.R
+import ca.allanwang.kau.utils.bindView
+import com.mikepenz.fastadapter.items.AbstractItem
+
+/**
+ * Created by Allan Wang on 2017-06-27.
+ */
+class MainItem(builder: Config.() -> Unit) : AbstractItem<MainItem, MainItem.ViewHolder>() {
+
+    val configs = Config().apply { builder() }
+
+    class Config {
+        var icon: Drawable? = null
+        var title: String = "App Title"
+        var author: String? = null
+        var description: String? = null
+        var version: String? = null
+        var githubLink: String? = null
+    }
+
+    override fun getType(): Int = R.id.kau_item_about_main
+
+    override fun getLayoutRes(): Int = R.layout.kau_about_item_main
+
+    override fun isSelectable(): Boolean = false
+
+    override fun getViewHolder(v: View): ViewHolder = ViewHolder(v)
+
+    override fun bindView(holder: ViewHolder, payloads: MutableList<Any>?) {
+        super.bindView(holder, payloads)
+        with (holder) {
+            title.text = configs.title
+            creator.text = configs.author
+            description.text = configs.description
+//            license.text = configs.description
+        }
+    }
+
+    class ViewHolder(v: View) : RecyclerView.ViewHolder(v) {
+        val card: CardView by bindView(R.id.container)
+        val title: TextView by bindView(R.id.title)
+        val creator: TextView by bindView(R.id.creator)
+        val description: TextView by bindView(R.id.description)
+        val version: TextView by bindView(R.id.version)
+        val license: TextView by bindView(R.id.license)
+        val bottomContainer: LinearLayout by bindView(R.id.bottom_container)
+
+        val divider: View by bindView(R.id.top_divider)
+        val bottomDivider: View by bindView(R.id.bottom_divider)
+    }
+}
diff --git a/library/src/main/kotlin/ca/allanwang/kau/adapters/ChainedAdapters.kt b/library/src/main/kotlin/ca/allanwang/kau/adapters/ChainedAdapters.kt
new file mode 100644
index 0000000..aaa0fb0
--- /dev/null
+++ b/library/src/main/kotlin/ca/allanwang/kau/adapters/ChainedAdapters.kt
@@ -0,0 +1,88 @@
+package ca.allanwang.kau.adapters
+
+import android.support.v7.widget.LinearLayoutManager
+import android.support.v7.widget.RecyclerView
+import ca.allanwang.kau.logging.KL
+import com.mikepenz.fastadapter.IItem
+import com.mikepenz.fastadapter.adapters.HeaderAdapter
+import com.mikepenz.fastadapter.commons.adapters.FastItemAdapter
+import org.jetbrains.anko.collections.forEachReversedWithIndex
+import java.util.*
+
+/**
+ * Created by Allan Wang on 2017-06-27.
+ *
+ * Once bounded to a [RecyclerView], this will
+ * - Chain together a list of [HeaderAdapter]s, backed by a generic [FastItemAdapter]
+ * - Add a [LinearLayoutManager] to the recycler
+ * - Add a listener for when a new adapter segment is being used
+ */
+class ChainedAdapters<T>(vararg items: Pair<T, HeaderAdapter<*>>) {
+    private val chain: MutableList<Pair<T, HeaderAdapter<*>>> = mutableListOf(*items)
+    val baseAdapter: FastItemAdapter<IItem<*, *>> = FastItemAdapter()
+    private val indexStack = Stack<Int>()
+    var recycler: RecyclerView? = null
+    val firstVisibleItemPosition: Int
+        get() = (recycler?.layoutManager as LinearLayoutManager?)?.findFirstVisibleItemPosition() ?: throw IllegalArgumentException("No recyclerview was bounded to the chain adapters")
+
+    fun add(vararg items: Pair<T, HeaderAdapter<*>>) = add(items.toList())
+
+    fun add(items: Collection<Pair<T, HeaderAdapter<*>>>): ChainedAdapters<T> {
+        if (recycler != null) throw IllegalAccessException("Chain adapter is already bounded to a recycler; cannot add directly.")
+        chain.addAll(items)
+        return this
+    }
+
+    operator fun get(index: Int) = chain[index]
+
+    /**
+     * Attaches the chain to a recycler
+     * After this stage, any modifications to the adapters must be done through external references
+     * You may still get the generic header adapters through the get operator
+     * Binding the recycler also involves supplying a callback, which returns
+     * the item (T) associated with the adapter,
+     * the index (Int) of the current adapter
+     * and the dy (Int) as given by the scroll listener
+     */
+    fun bindRecyclerView(recyclerView: RecyclerView, onAdapterSectionChanged: (item: T, index: Int, dy: Int) -> Unit) {
+        if (recycler != null) throw IllegalStateException("Chain adapter is already bounded")
+        if (chain.isEmpty()) throw IllegalArgumentException("No adapters have been added to the adapters list")
+        //wrap adapters
+        chain.map { it.second }.forEachReversedWithIndex { i, headerAdapter ->
+            if (i == chain.size - 1) headerAdapter.wrap(baseAdapter)
+            else headerAdapter.wrap(chain[i + 1].second)
+            if (i < chain.size - 1) KL.e("${chain[i].first} ${chain[i + 1].first}")
+        }
+        recycler = recyclerView
+        indexStack.push(0)
+        with(recyclerView) {
+            layoutManager = LinearLayoutManager(context)
+            adapter = chain.first().second
+            addOnScrollListener(object : RecyclerView.OnScrollListener() {
+                override fun onScrolled(rv: RecyclerView, dx: Int, dy: Int) {
+                    super.onScrolled(rv, dx, dy)
+                    val topPosition = firstVisibleItemPosition
+                    val currentAdapterIndex = indexStack.peek()
+                    if (dy > 0) {
+                        //look ahead from current adapter
+                        val nextAdapterIndex = (currentAdapterIndex until chain.size).asSequence()
+                                .firstOrNull {
+                                    val adapter = chain[it].second
+                                    KL.e("A $it ${adapter.adapterItemCount} ${adapter.getGlobalPosition(0)} $topPosition $currentAdapterIndex")
+                                    adapter.adapterItemCount > 0 && adapter.getGlobalPosition(0) >= topPosition
+                                } ?: currentAdapterIndex
+                        KL.e("Next $nextAdapterIndex")
+                        if (nextAdapterIndex == currentAdapterIndex) return
+                        indexStack.push(nextAdapterIndex)
+                        onAdapterSectionChanged(chain[indexStack.peek()].first, indexStack.peek(), dy)
+                    } else if (currentAdapterIndex == 0) {
+                        return //All adapters may be empty; in this case, if we are already at the beginning, don't bother checking
+                    } else if (chain[currentAdapterIndex].second.getGlobalPosition(0) > topPosition) {
+                        indexStack.pop()
+                        onAdapterSectionChanged(chain[indexStack.peek()].first, indexStack.peek(), dy)
+                    }
+                }
+            })
+        }
+    }
+}
\ No newline at end of file
diff --git a/library/src/main/kotlin/ca/allanwang/kau/changelog/Changelog.kt b/library/src/main/kotlin/ca/allanwang/kau/changelog/Changelog.kt
index 24e6358..a91d0af 100644
--- a/library/src/main/kotlin/ca/allanwang/kau/changelog/Changelog.kt
+++ b/library/src/main/kotlin/ca/allanwang/kau/changelog/Changelog.kt
@@ -42,7 +42,7 @@ fun Context.showChangelog(@XmlRes xmlRes: Int, @ColorInt textColor: Int? = null,
 
 /**
  * Internals of the changelog dialog
- * Contains an adapter for each item, as well as the tags to parse
+ * Contains an mainAdapter for each item, as well as the tags to parse
  */
 internal class ChangelogAdapter(val items: List<Pair<String, ChangelogType>>, @ColorInt val textColor: Int? = null) : RecyclerView.Adapter<ChangelogAdapter.ChangelogVH>() {
 
diff --git a/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefActivity.kt b/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefActivity.kt
index 96b1237..193ca58 100644
--- a/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefActivity.kt
+++ b/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefActivity.kt
@@ -13,13 +13,12 @@ import android.widget.FrameLayout
 import android.widget.ViewAnimator
 import ca.allanwang.kau.R
 import ca.allanwang.kau.kpref.items.KPrefItemCore
-import ca.allanwang.kau.logging.KL
 import ca.allanwang.kau.utils.bindView
 import ca.allanwang.kau.utils.resolveColor
 import ca.allanwang.kau.utils.statusBarColor
 import ca.allanwang.kau.utils.string
+import ca.allanwang.kau.views.KauTextSlider
 import ca.allanwang.kau.views.RippleCanvas
-import ca.allanwang.kau.views.TextSlider
 import com.mikepenz.fastadapter.commons.adapters.FastItemAdapter
 
 abstract class KPrefActivity : AppCompatActivity(), KPrefActivityContract {
@@ -33,13 +32,13 @@ abstract class KPrefActivity : AppCompatActivity(), KPrefActivityContract {
     val bgCanvas: RippleCanvas by bindView(R.id.kau_ripple)
     val toolbarCanvas: RippleCanvas by bindView(R.id.kau_toolbar_ripple)
     val toolbar: Toolbar by bindView(R.id.kau_toolbar)
-    val toolbarTitle: TextSlider by bindView(R.id.kau_toolbar_text)
+    val toolbarTitle: KauTextSlider by bindView(R.id.kau_toolbar_text)
     val prefHolder: ViewAnimator by bindView(R.id.kau_holder)
     private lateinit var globalOptions: GlobalOptions
     var animate: Boolean = true
         set(value) {
             field = value
-            toolbarTitle.animate = value
+            toolbarTitle.animationType = if (value) KauTextSlider.ANIMATION_SLIDE_HORIZONTAL else KauTextSlider.ANIMATION_NONE
         }
 
     private val SLIDE_IN_LEFT_ITEMS: Animation by lazy { AnimationUtils.loadAnimation(this, R.anim.kau_slide_in_left) }
diff --git a/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefBinder.kt b/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefBinder.kt
index 5fdb6bc..7f42d2a 100644
--- a/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefBinder.kt
+++ b/library/src/main/kotlin/ca/allanwang/kau/kpref/KPrefBinder.kt
@@ -12,11 +12,11 @@ import org.jetbrains.anko.uiThread
 /**
  * Created by Allan Wang on 2017-06-08.
  *
- * Houses all the components that can be called externally to setup the kpref adapter
+ * Houses all the components that can be called externally to setup the kpref mainAdapter
  */
 
 /**
- * Base extension that will register the layout manager and adapter with the given items
+ * Base extension that will register the layout manager and mainAdapter with the given items
  * Returns FastAdapter
  */
 fun RecyclerView.setKPrefAdapter(globalOptions: GlobalOptions, builder: KPrefAdapterBuilder.() -> Unit): FastItemAdapter<KPrefItemCore> {
diff --git a/library/src/main/kotlin/ca/allanwang/kau/searchview/SearchView.kt b/library/src/main/kotlin/ca/allanwang/kau/searchview/SearchView.kt
index 5936a07..29c2223 100644
--- a/library/src/main/kotlin/ca/allanwang/kau/searchview/SearchView.kt
+++ b/library/src/main/kotlin/ca/allanwang/kau/searchview/SearchView.kt
@@ -114,7 +114,7 @@ class SearchView @JvmOverloads constructor(
          */
         var transitionDuration: Long = 100L
         /**
-         * Defines whether the edit text and adapter should clear themselves when the searchView is closed
+         * Defines whether the edit text and mainAdapter should clear themselves when the searchView is closed
          */
         var shouldClearOnClose: Boolean = false
         /**
@@ -184,7 +184,7 @@ class SearchView @JvmOverloads constructor(
     }
 
     /**
-     * Contract for adapter items
+     * Contract for mainAdapter items
      * Setting results will ensure that the values are sent on the UI thread
      */
     var results: List<SearchItem>
diff --git a/library/src/main/kotlin/ca/allanwang/kau/utils/PackageUtils.kt b/library/src/main/kotlin/ca/allanwang/kau/utils/PackageUtils.kt
index f2703dc..837c209 100644
--- a/library/src/main/kotlin/ca/allanwang/kau/utils/PackageUtils.kt
+++ b/library/src/main/kotlin/ca/allanwang/kau/utils/PackageUtils.kt
@@ -3,6 +3,7 @@ package ca.allanwang.kau.utils
 import android.content.Context
 import android.content.pm.PackageManager
 import android.os.Build
+import android.support.annotation.RequiresApi
 
 /**
  * Created by Allan Wang on 2017-06-23.
@@ -31,6 +32,9 @@ val buildIsLollipopAndUp: Boolean
 val buildIsMarshmallowAndUp: Boolean
     get() = Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
 
+val buildIsNougatAndUp: Boolean
+    get() = Build.VERSION.SDK_INT >= Build.VERSION_CODES.N
+
 const val INSTALLER_GOOGLE_PLAY_VENDING = "com.android.vending"
 const val INSTALLER_GOOGLE_PLAY_FEEDBACK = "com.google.android.feedback"
 
diff --git a/library/src/main/kotlin/ca/allanwang/kau/views/KauTextSlider.kt b/library/src/main/kotlin/ca/allanwang/kau/views/KauTextSlider.kt
new file mode 100644
index 0000000..8294f9f
--- /dev/null
+++ b/library/src/main/kotlin/ca/allanwang/kau/views/KauTextSlider.kt
@@ -0,0 +1,125 @@
+package ca.allanwang.kau.views
+
+import android.content.Context
+import android.graphics.Color
+import android.support.v4.widget.TextViewCompat
+import android.text.TextUtils
+import android.util.AttributeSet
+import android.view.Gravity
+import android.view.animation.Animation
+import android.view.animation.AnimationUtils
+import android.widget.TextSwitcher
+import android.widget.TextView
+import ca.allanwang.kau.R
+import java.util.*
+
+/**
+ * Created by Allan Wang on 2017-06-21.
+ *
+ * Text switcher with global text color and embedded sliding animations
+ * Also has a stack to keep track of title changes
+ */
+class KauTextSlider @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null
+) : TextSwitcher(context, attrs) {
+
+    val titleStack: Stack<CharSequence?> = Stack()
+
+    /**
+     * Holds a mapping of animation types to their respective animations
+     */
+    val animationMap = mapOf(
+            ANIMATION_NONE to null,
+            ANIMATION_SLIDE_HORIZONTAL to AnimationBundle(
+                    R.anim.kau_slide_in_right, R.anim.kau_slide_out_left,
+                    R.anim.kau_slide_in_left, R.anim.kau_slide_out_right),
+            ANIMATION_SLIDE_VERTICAL to AnimationBundle(
+                    R.anim.kau_slide_in_bottom, R.anim.kau_slide_out_top,
+                    R.anim.kau_slide_in_top, R.anim.kau_slide_out_bottom
+            )
+    )
+
+    /**
+     * Holds lazy instances of the animations
+     */
+    inner class AnimationBundle(private val nextIn: Int, private val nextOut: Int, private val prevIn: Int, private val prevOut: Int) {
+        val NEXT_IN: Animation by lazy { AnimationUtils.loadAnimation(context, nextIn) }
+        val NEXT_OUT: Animation by lazy { AnimationUtils.loadAnimation(context, nextOut) }
+        val PREV_IN: Animation by lazy { AnimationUtils.loadAnimation(context, prevIn) }
+        val PREV_OUT: Animation by lazy { AnimationUtils.loadAnimation(context, prevOut) }
+    }
+
+    companion object {
+        const val ANIMATION_NONE = 1000
+        const val ANIMATION_SLIDE_HORIZONTAL = 1001
+        const val ANIMATION_SLIDE_VERTICAL = 1002
+    }
+
+    var animationType: Int = ANIMATION_SLIDE_HORIZONTAL
+
+    var textColor: Int = Color.WHITE
+        get() = field
+        set(value) {
+            field = value
+            (getChildAt(0) as TextView).setTextColor(value)
+            (getChildAt(1) as TextView).setTextColor(value)
+        }
+    val isRoot: Boolean
+        get() = titleStack.size <= 1
+
+    init {
+        if (attrs != null) {
+            val styledAttrs = context.obtainStyledAttributes(attrs, R.styleable.KauTextSlider)
+            animationType = styledAttrs.getInteger(R.styleable.KauTextSlider_kau_animation_type, ANIMATION_SLIDE_HORIZONTAL)
+            styledAttrs.recycle()
+        }
+    }
+
+    override fun setText(text: CharSequence?) {
+        if ((currentView as TextView).text == text) return
+        super.setText(text)
+    }
+
+    override fun setCurrentText(text: CharSequence?) {
+        if (titleStack.isNotEmpty()) titleStack.pop()
+        titleStack.push(text)
+        super.setCurrentText(text)
+    }
+
+    fun setNextText(text: CharSequence?) {
+        if (titleStack.isEmpty()) {
+            setCurrentText(text)
+            return
+        }
+        titleStack.push(text)
+        val anim = animationMap[animationType]
+        inAnimation = anim?.NEXT_IN
+        outAnimation = anim?.NEXT_OUT
+        setText(text)
+    }
+
+    /**
+     * Sets the text as the previous title
+     * No further checks are done, so be sure to verify with [isRoot]
+     */
+    @Throws(EmptyStackException::class)
+    fun setPrevText() {
+        titleStack.pop()
+        val anim = animationMap[animationType]
+        inAnimation = anim?.PREV_IN
+        outAnimation = anim?.PREV_OUT
+        val text = titleStack.peek()
+        setText(text)
+    }
+
+    init {
+        setFactory {
+            TextView(context).apply {
+                //replica of toolbar title
+                gravity = Gravity.START
+                setSingleLine()
+                ellipsize = TextUtils.TruncateAt.END
+                TextViewCompat.setTextAppearance(this, R.style.TextAppearance_AppCompat_Title)
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/library/src/main/kotlin/ca/allanwang/kau/views/TextSlider.kt b/library/src/main/kotlin/ca/allanwang/kau/views/TextSlider.kt
deleted file mode 100644
index b8735bb..0000000
--- a/library/src/main/kotlin/ca/allanwang/kau/views/TextSlider.kt
+++ /dev/null
@@ -1,127 +0,0 @@
-package ca.allanwang.kau.views
-
-import android.content.Context
-import android.graphics.Color
-import android.support.annotation.AnimRes
-import android.support.v4.widget.TextViewCompat
-import android.text.TextUtils
-import android.util.AttributeSet
-import android.view.Gravity
-import android.view.animation.Animation
-import android.view.animation.AnimationUtils
-import android.widget.TextSwitcher
-import android.widget.TextView
-import ca.allanwang.kau.R
-import java.util.*
-
-/**
- * Created by Allan Wang on 2017-06-21.
- *
- * Text switcher with global text color and embedded sliding animations
- * Also has a stack to keep track of title changes
- */
-class TextSlider @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null
-) : TextSwitcher(context, attrs) {
-
-    val titleStack: Stack<CharSequence?> = Stack()
-
-    inner class Animations(
-            private @param: AnimRes val nextIn: Int,
-            private @param: AnimRes val nextOut: Int,
-            private @param: AnimRes val prevIn: Int,
-            private @param: AnimRes val prevOut: Int
-    ) {
-
-        val NEXT_IN: Animation by lazy { AnimationUtils.loadAnimation(context, R.anim.kau_slide_in_left) }
-        val NEXT_OUT: Animation by lazy { AnimationUtils.loadAnimation(context, R.anim.kau_slide_in_right) }
-        val PREV_IN: Animation by lazy { AnimationUtils.loadAnimation(context, R.anim.kau_slide_in_top) }
-        val PREV_OUT: Animation by lazy { AnimationUtils.loadAnimation(context, R.anim.kau_slide_in_bottom) }
-
-    }
-
-    private val SLIDE_IN_LEFT: Animation by lazy { AnimationUtils.loadAnimation(context, R.anim.kau_slide_in_left) }
-    private val SLIDE_IN_RIGHT: Animation by lazy { AnimationUtils.loadAnimation(context, R.anim.kau_slide_in_right) }
-    private val SLIDE_IN_TOP: Animation by lazy { AnimationUtils.loadAnimation(context, R.anim.kau_slide_in_top) }
-    private val SLIDE_IN_BOTTOM: Animation by lazy { AnimationUtils.loadAnimation(context, R.anim.kau_slide_in_bottom) }
-
-    private val SLIDE_OUT_LEFT: Animation by lazy { AnimationUtils.loadAnimation(context, R.anim.kau_slide_out_left) }
-    private val SLIDE_OUT_RIGHT: Animation by lazy { AnimationUtils.loadAnimation(context, R.anim.kau_slide_out_right) }
-    private val SLIDE_OUT_TOP: Animation by lazy { AnimationUtils.loadAnimation(context, R.anim.kau_slide_out_top) }
-    private val SLIDE_OUT_BOTTOM: Animation by lazy { AnimationUtils.loadAnimation(context, R.anim.kau_slide_out_bottom) }
-
-    var animate: Boolean = true
-    var horizontal: Boolean = true
-
-    var textColor: Int = Color.WHITE
-        get() = field
-        set(value) {
-            field = value
-            (getChildAt(0) as TextView).setTextColor(value)
-            (getChildAt(1) as TextView).setTextColor(value)
-        }
-    val isRoot: Boolean
-        get() = titleStack.size <= 1
-
-    override fun setText(text: CharSequence?) {
-        if ((currentView as TextView).text == text) return
-        super.setText(text)
-    }
-
-    fun setTextSlideUp(text: CharSequence?) {
-        inAnimation = if (animate) SLIDE_IN_BOTTOM else null
-        outAnimation = if (animate) SLIDE_OUT_TOP else null
-        setText(text)
-    }
-
-    fun setTextSlideDown(text: CharSequence?) {
-        inAnimation = if (animate) SLIDE_IN_TOP else null
-        outAnimation = if (animate) SLIDE_OUT_BOTTOM else null
-        setText(text)
-    }
-
-    fun setTextSlideLeft(text: CharSequence?) {
-        inAnimation = if (animate) SLIDE_IN_RIGHT else null
-        outAnimation = if (animate) SLIDE_OUT_LEFT else null
-        setText(text)
-    }
-
-    fun setTextSlideRight(text: CharSequence?) {
-        inAnimation = if (animate) SLIDE_IN_LEFT else null
-        outAnimation = if (animate) SLIDE_OUT_RIGHT else null
-        setText(text)
-    }
-
-    override fun setCurrentText(text: CharSequence?) {
-        if (titleStack.isNotEmpty()) titleStack.pop()
-        titleStack.push(text)
-        super.setCurrentText(text)
-    }
-
-    fun setNextText(text: CharSequence?) {
-        titleStack.push(text)
-        if (horizontal) setTextSlideLeft(text) else setTextSlideUp(text)
-    }
-
-    /**
-     * Sets the text as the previous title
-     * No further checks are done, so be sure to verify with [isRoot]
-     */
-    @Throws(EmptyStackException::class)
-    fun setPrevText() {
-        titleStack.pop()
-        val text = titleStack.peek()
-        if (horizontal) setTextSlideRight(text) else setTextSlideDown(text)
-    }
-
-    init {
-        setFactory {
-            TextView(context).apply {
-                //replica of toolbar title
-                gravity = Gravity.START
-                setSingleLine()
-                ellipsize = TextUtils.TruncateAt.END
-                TextViewCompat.setTextAppearance(this, R.style.TextAppearance_AppCompat)
-            }
-        }
-    }
-}
\ No newline at end of file
diff --git a/library/src/main/res/layout/kau_about_item_library.xml b/library/src/main/res/layout/kau_about_item_library.xml
new file mode 100644
index 0000000..5730d67
--- /dev/null
+++ b/library/src/main/res/layout/kau_about_item_library.xml
@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@id/rippleForegroundListenerView"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_marginBottom="8dp"
+    android:layout_marginTop="8dp"
+    android:clickable="true"
+    android:foreground="?selectableItemBackground"
+    android:layoutDirection="ltr">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:padding="6dp">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:gravity="center_vertical"
+            android:orientation="horizontal"
+            android:paddingLeft="8dp"
+            android:paddingRight="8dp">
+
+            <TextView
+                android:id="@+id/libraryName"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="5"
+                android:ellipsize="end"
+                android:gravity="start"
+                android:maxLines="1"
+                android:textSize="@dimen/textSizeLarge_openSource"
+                android:textStyle="normal"
+                tools:text="Library name" />
+
+            <TextView
+                android:id="@+id/libraryCreator"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="2dp"
+                android:layout_weight="2"
+                android:gravity="end"
+                android:maxLines="2"
+                android:textSize="@dimen/textSizeSmall_openSource"
+                android:textStyle="normal"
+                tools:text="Creator" />
+        </LinearLayout>
+
+        <View
+            android:id="@+id/libraryDescriptionDivider"
+            android:layout_width="match_parent"
+            android:layout_height="1px"
+            android:layout_marginTop="4dp" />
+
+        <TextView
+            android:id="@+id/libraryDescription"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:maxLines="20"
+            android:padding="8dp"
+            android:textSize="@dimen/textSizeSmall_openSource"
+            android:textStyle="normal"
+            tools:text="Description"/>
+
+        <View
+            android:id="@+id/libraryBottomDivider"
+            android:layout_width="match_parent"
+            android:layout_height="1px"
+            android:layout_marginTop="4dp" />
+
+        <LinearLayout
+            android:id="@+id/libraryBottomContainer"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:gravity="center_vertical"
+            android:orientation="horizontal"
+            android:paddingLeft="8dp"
+            android:paddingRight="8dp"
+            android:paddingTop="4dp">
+
+            <TextView
+                android:id="@+id/libraryVersion"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:gravity="start"
+                android:maxLines="1"
+                android:textSize="@dimen/textSizeSmall_openSource"
+                android:textStyle="normal"
+                tools:text="Version" />
+
+            <TextView
+                android:id="@+id/libraryLicense"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:gravity="end"
+                android:maxLines="1"
+                android:textSize="@dimen/textSizeSmall_openSource"
+                android:textStyle="normal"
+                tools:text="License" />
+        </LinearLayout>
+    </LinearLayout>
+</android.support.v7.widget.CardView>
\ No newline at end of file
diff --git a/library/src/main/res/layout/kau_about_item_main.xml b/library/src/main/res/layout/kau_about_item_main.xml
new file mode 100644
index 0000000..96ba110
--- /dev/null
+++ b/library/src/main/res/layout/kau_about_item_main.xml
@@ -0,0 +1,106 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/container"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_marginBottom="8dp"
+    android:layout_marginTop="8dp"
+    android:clickable="true"
+    android:background="?selectableItemBackground">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:padding="6dp">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:gravity="center_vertical"
+            android:orientation="horizontal"
+            android:paddingLeft="8dp"
+            android:paddingRight="8dp">
+
+            <TextView
+                android:id="@+id/title"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="5"
+                android:ellipsize="end"
+                android:gravity="start"
+                android:maxLines="1"
+                android:textSize="@dimen/textSizeLarge_openSource"
+                android:textStyle="normal"
+                tools:text="App name" />
+
+            <TextView
+                android:id="@+id/creator"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="2dp"
+                android:layout_weight="2"
+                android:gravity="end"
+                android:maxLines="2"
+                android:textSize="@dimen/textSizeSmall_openSource"
+                android:textStyle="normal"
+                tools:text="Creator" />
+        </LinearLayout>
+
+        <View
+            android:id="@+id/top_divider"
+            android:layout_width="match_parent"
+            android:layout_height="1px"
+            android:layout_marginTop="4dp" />
+
+        <TextView
+            android:id="@+id/description"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:maxLines="20"
+            android:padding="8dp"
+            android:textSize="@dimen/textSizeSmall_openSource"
+            android:textStyle="normal"
+            tools:text="Description"/>
+
+        <View
+            android:id="@+id/bottom_divider"
+            android:layout_width="match_parent"
+            android:layout_height="1px"
+            android:layout_marginTop="4dp" />
+
+        <LinearLayout
+            android:id="@+id/bottom_container"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:gravity="center_vertical"
+            android:orientation="horizontal"
+            android:paddingLeft="8dp"
+            android:paddingRight="8dp"
+            android:paddingTop="4dp">
+
+            <TextView
+                android:id="@+id/version"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:gravity="start"
+                android:maxLines="1"
+                android:textSize="@dimen/textSizeSmall_openSource"
+                android:textStyle="normal"
+                tools:text="Version" />
+
+            <TextView
+                android:id="@+id/license"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:gravity="end"
+                android:maxLines="1"
+                android:textSize="@dimen/textSizeSmall_openSource"
+                android:textStyle="normal"
+                tools:text="License" />
+        </LinearLayout>
+    </LinearLayout>
+</android.support.v7.widget.CardView>
\ No newline at end of file
diff --git a/library/src/main/res/layout/kau_activity_about.xml b/library/src/main/res/layout/kau_activity_about.xml
index 21d9306..a42cbe8 100644
--- a/library/src/main/res/layout/kau_activity_about.xml
+++ b/library/src/main/res/layout/kau_activity_about.xml
@@ -13,12 +13,12 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent">
 
-        <ca.allanwang.kau.views.TextSlider
+        <ca.allanwang.kau.views.KauTextSlider
             android:id="@+id/kau_toolbar_text"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:gravity="center"
-            android:textAppearance="@style/TextAppearance.AppCompat.Title" />
+            app:kau_animation_type="slide_vertical" />
 
     </android.support.v7.widget.Toolbar>
 
diff --git a/library/src/main/res/layout/kau_activity_kpref.xml b/library/src/main/res/layout/kau_activity_kpref.xml
index e4e7b97..2281c45 100644
--- a/library/src/main/res/layout/kau_activity_kpref.xml
+++ b/library/src/main/res/layout/kau_activity_kpref.xml
@@ -24,13 +24,12 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent">
 
-        <ca.allanwang.kau.views.TextSlider
+        <ca.allanwang.kau.views.KauTextSlider
             android:id="@+id/kau_toolbar_text"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:gravity="center"
-            android:textAppearance="@style/TextAppearance.AppCompat.Title"
-            android:textColor="@android:color/white" />
+            app:kau_animation_type="slide_horizontal" />
 
     </android.support.v7.widget.Toolbar>
 
diff --git a/library/src/main/res/values/attr.xml b/library/src/main/res/values/attr.xml
index 894a069..14ae027 100644
--- a/library/src/main/res/values/attr.xml
+++ b/library/src/main/res/values/attr.xml
@@ -6,4 +6,12 @@
         <attr name="kau_maxHeightPercent" format="float" />
     </declare-styleable>
 
+    <declare-styleable name="KauTextSlider">
+        <attr name="kau_animation_type" format="enum">
+            <enum name="none" value="1000" />
+            <enum name="slide_horizontal" value="1001" />
+            <enum name="slide_vertical" value="1002" />
+        </attr>
+    </declare-styleable>
+
 </resources>
\ No newline at end of file
diff --git a/library/src/main/res/values/ids.xml b/library/src/main/res/values/ids.xml
index cda9faa..a21175a 100644
--- a/library/src/main/res/values/ids.xml
+++ b/library/src/main/res/values/ids.xml
@@ -8,4 +8,6 @@
     <item name="kau_item_pref_sub_item" type="id" />
     <item name="kau_item_pref_plain_text" type="id" />
     <item name="kau_item_search" type="id" />
+    <item name="kau_item_about_library" type="id" />
+    <item name="kau_item_about_main" type="id" />
 </resources>
\ No newline at end of file
diff --git a/library/src/main/res/values/strings_about.xml b/library/src/main/res/values/strings_about.xml
index 2c3f9a1..be891d2 100644
--- a/library/src/main/res/values/strings_about.xml
+++ b/library/src/main/res/values/strings_about.xml
@@ -1,5 +1,7 @@
 <resources xmlns:tools="http://schemas.android.com/tools">
-    <string name="define_int_kau" tools:ignore="ResourceName" />
+    <string name="kau_dependencies_used">Dependencies Used</string>
+
+    <string name="define_kau" tools:ignore="ResourceName" />
     <!-- Author section -->
     <string name="library_kau_author" tools:ignore="ResourceName">Allan Wang</string>
     <string name="library_kau_authorWebsite" tools:ignore="ResourceName">https://www.allanwang.ca/dev/</string>
diff --git a/library/src/main/res/values/styles.xml b/library/src/main/res/values/styles.xml
deleted file mode 100644
index c8e2197..0000000
--- a/library/src/main/res/values/styles.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-
-    <style name="KauSearchView" parent="Widget.AppCompat.SearchView.ActionBar">
-
-    </style>
-
-</resources>
\ No newline at end of file