Improve video prefetching (#17)

* Create base activity and add thumbnails to media picker

* Add checker to see if requested permission is inside the manifest

* Add faq parser with tests

* Add kpref testers and expose sp

* Test jitpack sample exclusion

* Test caching

* Improve glide caching

28 files changed, 322 insertions, 52 deletions

diff --git a/about/src/main/kotlin/ca/allanwang/kau/about/AboutActivityBase.kt b/about/src/main/kotlin/ca/allanwang/kau/about/AboutActivityBase.kt
index 19fb4c4..61a3bb2 100644
--- a/about/src/main/kotlin/ca/allanwang/kau/about/AboutActivityBase.kt
+++ b/about/src/main/kotlin/ca/allanwang/kau/about/AboutActivityBase.kt
@@ -16,6 +16,7 @@ import ca.allanwang.kau.adapters.ThemableIItemColorsDelegate
 import ca.allanwang.kau.animators.FadeScaleAnimatorAdd
 import ca.allanwang.kau.animators.KauAnimator
 import ca.allanwang.kau.iitems.HeaderIItem
+import ca.allanwang.kau.internal.KauBaseActivity
 import ca.allanwang.kau.ui.widgets.ElasticDragDismissFrameLayout
 import ca.allanwang.kau.ui.widgets.InkPageIndicator
 import ca.allanwang.kau.utils.*
@@ -37,7 +38,7 @@ import java.security.InvalidParameterException
  * Note that for the auto detection to work, the R fields must be excluded from Proguard
  * Manual lib listings and other extra modifications can be done so by overriding the open functions
  */
-abstract class AboutActivityBase(val rClass: Class<*>?, val configBuilder: Configs.() -> Unit = {}) : AppCompatActivity(), ViewPager.OnPageChangeListener {
+abstract class AboutActivityBase(val rClass: Class<*>?, val configBuilder: Configs.() -> Unit = {}) : KauBaseActivity(), ViewPager.OnPageChangeListener {
 
     val draggableFrame: ElasticDragDismissFrameLayout by bindView(R.id.about_draggable_frame)
     val pager: ViewPager by bindView(R.id.about_pager)
diff --git a/android-lib.gradle b/android-lib.gradle
index f45aa02..46de84c 100644
--- a/android-lib.gradle
+++ b/android-lib.gradle
@@ -72,10 +72,7 @@ android {
 
 dependencies {
     androidTestCompile 'com.android.support.test:runner:0.5'
-    androidTestCompile 'com.android.support.test:rules:0.5'
-    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
-        exclude group: 'com.android.support', module: 'support-annotations'
-    })
-    testCompile 'junit:junit:4.12'
+    androidTestCompile "org.jetbrains.kotlin:kotlin-test-junit:${KOTLIN}"
     testCompile "org.jetbrains.kotlin:kotlin-test-junit:${KOTLIN}"
+    testCompile 'junit:junit:4.12'
 }
\ No newline at end of file
diff --git a/core-ui/src/main/kotlin/ca/allanwang/kau/ui/activities/ElasticRecyclerActivity.kt b/core-ui/src/main/kotlin/ca/allanwang/kau/ui/activities/ElasticRecyclerActivity.kt
index 20a81e4..4c5563b 100644
--- a/core-ui/src/main/kotlin/ca/allanwang/kau/ui/activities/ElasticRecyclerActivity.kt
+++ b/core-ui/src/main/kotlin/ca/allanwang/kau/ui/activities/ElasticRecyclerActivity.kt
@@ -10,6 +10,7 @@ import android.support.v7.app.AppCompatActivity
 import android.support.v7.widget.RecyclerView
 import android.support.v7.widget.Toolbar
 import android.transition.TransitionInflater
+import ca.allanwang.kau.internal.KauBaseActivity
 import ca.allanwang.kau.ui.R
 import ca.allanwang.kau.ui.widgets.ElasticDragDismissFrameLayout
 import ca.allanwang.kau.utils.bindView
@@ -26,7 +27,7 @@ import ca.allanwang.kau.utils.bindView
  * The exit animation is set to slide out, but the entrance must be defined yourself
  */
 @RequiresApi(Build.VERSION_CODES.LOLLIPOP)
-abstract class ElasticRecyclerActivity : AppCompatActivity() {
+abstract class ElasticRecyclerActivity : KauBaseActivity() {
 
     val appBar: AppBarLayout by bindView(R.id.kau_appbar)
     val toolbar: Toolbar by bindView(R.id.kau_toolbar)
diff --git a/core/README.md b/core/README.md
index c26836e..b952797 100644
--- a/core/README.md
+++ b/core/README.md
@@ -6,6 +6,7 @@
 
 * [KPrefs](#kprefs)
 * [Changelog XML](#changelog)
+* [FAQ XML](#faq-xml)
 * [Kotterknife](#kotterknife)
 * [Ripple Canvas](#ripple-canvas)
 * [MeasureSpecDelegate](#measure-spec-delegate)
@@ -106,6 +107,20 @@ Here is a template xml changelog file:
 </resources>
 ```
 
+<a name="faq-xml"></a>
+## FAQ XML
+
+There is another parser for a FAQ list with the following format:
+
+```xml
+<question>This is a question</question>
+<answer>This is an answer</answer>
+```
+
+Calling `kauParseFaq` will give you a `List<Pair<Spanned, Spanned>` that you can work with.
+By default, the questions are numbered, and the content is formatted with HTML. 
+You may still need to add your own methods to allow interaction with certain elements such as links.
+
 <a name="kotterknife"></a>
 ## Kotterknife
 
diff --git a/core/src/androidTest/kotlin/ca/allanwang/kau/kpref/KPrefTest.kt b/core/src/androidTest/kotlin/ca/allanwang/kau/kpref/KPrefTest.kt
new file mode 100644
index 0000000..e806a3f
--- /dev/null
+++ b/core/src/androidTest/kotlin/ca/allanwang/kau/kpref/KPrefTest.kt
@@ -0,0 +1,85 @@
+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 org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import kotlin.test.assertEquals
+import kotlin.test.assertFalse
+import kotlin.test.assertTrue
+
+/**
+ * Created by Allan Wang on 2017-08-01.
+ */
+@RunWith(AndroidJUnit4::class)
+@MediumTest
+class ChangelogTest {
+
+    lateinit var pref: TestPref
+
+    class TestPref : KPref() {
+        init {
+            initialize(InstrumentationRegistry.getTargetContext(), "kpref_test_${System.currentTimeMillis()}")
+        }
+
+        var one: Int by kpref("one", 1)
+
+        var `true`: Boolean by kpref("true", true)
+
+        var hello: String by kpref("hello", "hello")
+
+        var set: StringSet by kpref("set", setOf("po", "ta", "to"))
+
+        val oneShot: Boolean by kprefSingle("asdf")
+    }
+
+    @Before
+    fun init() {
+        pref = TestPref()
+    }
+
+    @Test
+    fun getDefaults() {
+        assertEquals(1, pref.one)
+        assertEquals(true, pref.`true`)
+        assertEquals("hello", pref.hello)
+        assertEquals(3, pref.set.size)
+        assertTrue(pref.set.contains("po"))
+        assertTrue(pref.set.contains("ta"))
+        assertTrue(pref.set.contains("to"))
+    }
+
+    @Test
+    fun setter() {
+        assertEquals(1, pref.one)
+        pref.one = 2
+        assertEquals(2, pref.one)
+        pref.hello = "goodbye"
+        assertEquals("goodbye", pref.hello)
+        assertEquals(pref.hello, pref.sp.getString("hello", "hello"))
+    }
+
+    @SuppressLint("CommitPrefEdits")
+    @Test
+    fun reset() {
+        pref.one = 2
+        assertEquals(2, pref.one)
+        pref.reset() //only invalidates our lazy delegate; doesn't change the actual pref
+        assertEquals(2, pref.one)
+        pref.sp.edit().putInt("one", -1).commit()
+        assertEquals(2, pref.one) //our lazy delegate still retains the old value
+        pref.reset()
+        assertEquals(-1, pref.one) //back in sync with sp
+    }
+
+
+    @Test
+    fun single() {
+        assertTrue(pref.oneShot)
+        assertFalse(pref.oneShot)
+    }
+
+}
\ No newline at end of file
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 3282911..1dac92f 100644
--- a/core/src/androidTest/kotlin/ca/allanwang/kau/utils/KotterknifeTest.kt
+++ b/core/src/androidTest/kotlin/ca/allanwang/kau/utils/KotterknifeTest.kt
@@ -7,10 +7,12 @@ import android.support.test.runner.AndroidJUnit4
 import android.view.View
 import android.widget.FrameLayout
 import android.widget.TextView
-import org.junit.Assert.*
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
+import kotlin.test.assertEquals
+import kotlin.test.assertNotNull
+import kotlin.test.assertNull
 
 /**
  * Created by Allan Wang on 2017-07-30.
diff --git a/core/src/androidTest/kotlin/ca/allanwang/kau/xml/ChangelogTest.kt b/core/src/androidTest/kotlin/ca/allanwang/kau/xml/ChangelogTest.kt
index dcff70e..a3c9ff1 100644
--- a/core/src/androidTest/kotlin/ca/allanwang/kau/xml/ChangelogTest.kt
+++ b/core/src/androidTest/kotlin/ca/allanwang/kau/xml/ChangelogTest.kt
@@ -14,9 +14,9 @@ import org.junit.runner.RunWith
 @MediumTest
 class ChangelogTest {
 
-    @Test
+//    @Test //todo internal function sharing is only available on gradle 3.0.0+
     fun simpleTest() {
-        val data = parse(InstrumentationRegistry.getTargetContext(), R.xml.text_changelog)
+//        val data = parse(InstrumentationRegistry.getTargetContext(), R.xml.test_changelog)
     }
 
 }
\ No newline at end of file
diff --git a/core/src/androidTest/kotlin/ca/allanwang/kau/xml/FaqTest.kt b/core/src/androidTest/kotlin/ca/allanwang/kau/xml/FaqTest.kt
new file mode 100644
index 0000000..94d1330
--- /dev/null
+++ b/core/src/androidTest/kotlin/ca/allanwang/kau/xml/FaqTest.kt
@@ -0,0 +1,38 @@
+package ca.allanwang.kau.xml
+
+import android.support.test.InstrumentationRegistry
+import android.support.test.filters.MediumTest
+import android.support.test.runner.AndroidJUnit4
+import ca.allanwang.kau.test.R
+import org.junit.Test
+import org.junit.runner.RunWith
+import kotlin.test.assertEquals
+
+/**
+ * Created by Allan Wang on 2017-08-01.
+ */
+@RunWith(AndroidJUnit4::class)
+@MediumTest
+class FaqTest {
+
+    @Test
+    fun simpleTest() {
+        val data = InstrumentationRegistry.getTargetContext().kauParseFaq(R.xml.test_faq)
+        assertEquals(2, data.size, "FAQ size is incorrect")
+        assertEquals("1. This is a question", data.first().first.toString(), "First question does not match")
+        assertEquals("This is an answer", data.first().second.toString(), "First answer does not match")
+        assertEquals("2. This is another question", data.last().first.toString(), "Second question does not match")
+        assertEquals("This is another answer", data.last().second.toString(), "Second answer does not match")
+    }
+
+    @Test
+    fun withoutNumbering() {
+        val data = InstrumentationRegistry.getTargetContext().kauParseFaq(R.xml.test_faq, false)
+        assertEquals(2, data.size, "FAQ size is incorrect")
+        assertEquals("This is a question", data.first().first.toString(), "First question does not match")
+        assertEquals("This is an answer", data.first().second.toString(), "First answer does not match")
+        assertEquals("This is another question", data.last().first.toString(), "Second question does not match")
+        assertEquals("This is another answer", data.last().second.toString(), "Second answer does not match")
+    }
+
+}
\ No newline at end of file
diff --git a/core/src/androidTest/res/xml/test_changelog.xml b/core/src/androidTest/res/xml/test_changelog.xml
new file mode 100644
index 0000000..2e90561
--- /dev/null
+++ b/core/src/androidTest/res/xml/test_changelog.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <version title="v1.1"/>
+    <item text="This is version 1.1" />
+    <item text="This is the last line to be displayed" />
+    <item text="" />
+
+    <version title="v1.0"/>
+    <item text="potato 1.0" />
+
+</resources>
\ No newline at end of file
diff --git a/core/src/androidTest/res/xml/test_faq.xml b/core/src/androidTest/res/xml/test_faq.xml
new file mode 100644
index 0000000..4905df3
--- /dev/null
+++ b/core/src/androidTest/res/xml/test_faq.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <question>This is a question</question>
+    <answer>This is an answer</answer>
+    <question>This is another question</question>
+    <answer>This is another answer</answer>
+
+</resources>
\ No newline at end of file
diff --git a/core/src/androidTest/res/xml/text_changelog.xml b/core/src/androidTest/res/xml/text_changelog.xml
deleted file mode 100644
index 6294144..0000000
--- a/core/src/androidTest/res/xml/text_changelog.xml
+++ /dev/null
@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-
-    <version title="title1"/>
-    <item text="test case" />
-    <item text="" />
-
-    <version title="title2"/>
-    <item text="potato" />
-
-</resources>
\ No newline at end of file
diff --git a/core/src/main/kotlin/ca/allanwang/kau/internal/KauBaseActivity.kt b/core/src/main/kotlin/ca/allanwang/kau/internal/KauBaseActivity.kt
new file mode 100644
index 0000000..87d94ce
--- /dev/null
+++ b/core/src/main/kotlin/ca/allanwang/kau/internal/KauBaseActivity.kt
@@ -0,0 +1,21 @@
+package ca.allanwang.kau.internal
+
+import android.support.v7.app.AppCompatActivity
+import ca.allanwang.kau.permissions.kauOnRequestPermissionsResult
+
+/**
+ * Created by Allan Wang on 2017-08-01.
+ *
+ * Base activity for any activity that would have extended [AppCompatActivity]
+ *
+ * Ensures that some singleton methods are called.
+ * This is simply a convenience class;
+ * you can always copy and paste this to your own class.
+ */
+abstract class KauBaseActivity : AppCompatActivity() {
+
+    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+        kauOnRequestPermissionsResult(permissions, grantResults)
+    }
+}
\ No newline at end of file
diff --git a/core/src/main/kotlin/ca/allanwang/kau/kotlin/LazyResettable.kt b/core/src/main/kotlin/ca/allanwang/kau/kotlin/LazyResettable.kt
index 701cb07..2ac5d2f 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/kotlin/LazyResettable.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/kotlin/LazyResettable.kt
@@ -50,7 +50,7 @@ open class LazyResettable<T : Any>(private val initializer: () -> T, lock: Any?
     }
 }
 
-interface ILazyResettable<T> : Lazy<T> {
+interface ILazyResettable<out T> : Lazy<T> {
     fun invalidate()
 }
 
diff --git a/core/src/main/kotlin/ca/allanwang/kau/kpref/KPref.kt b/core/src/main/kotlin/ca/allanwang/kau/kpref/KPref.kt
index c1ce282..be16c7c 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/kpref/KPref.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/kpref/KPref.kt
@@ -39,7 +39,8 @@ open class KPref {
         }
     }
 
-    internal val sp: SharedPreferences by lazy {
+    //todo hide this
+    val sp: SharedPreferences by lazy {
         if (!initialized) throw KPrefException("KPref object has not yet been initialized; please initialize it with a context and preference name")
         c.getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE)
     }
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 d6e17db..0c42574 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/permissions/PermissionManager.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/permissions/PermissionManager.kt
@@ -2,13 +2,17 @@ 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 ca.allanwang.kau.kotlin.lazyContext
 import ca.allanwang.kau.logging.KL
 import ca.allanwang.kau.utils.KauException
 import ca.allanwang.kau.utils.buildIsMarshmallowAndUp
 import ca.allanwang.kau.utils.hasPermission
+import ca.allanwang.kau.utils.toast
 import java.lang.ref.WeakReference
 
+
 /**
  * Created by Allan Wang on 2017-07-03.
  */
@@ -17,6 +21,17 @@ internal object PermissionManager {
     var requestInProgress = false
     val pendingResults: MutableList<WeakReference<PermissionResult>> by lazy { mutableListOf<WeakReference<PermissionResult>>() }
 
+    /**
+     * Retrieve permissions requested in our manifest
+     */
+    val manifestPermission = lazyContext<Array<String>> {
+        try {
+            it.packageManager.getPackageInfo(it.packageName, PackageManager.GET_PERMISSIONS)?.requestedPermissions ?: emptyArray()
+        } catch (e: Exception) {
+            emptyArray()
+        }
+    }
+
     operator fun invoke(context: Context, permissions: Array<out String>, callback: (granted: Boolean, deniedPerm: String?) -> Unit) {
         KL.d("Permission manager for: ${permissions.contentToString()}")
         if (!buildIsMarshmallowAndUp) return callback(true, null)
@@ -30,6 +45,13 @@ internal object PermissionManager {
     }
 
     @Synchronized internal fun requestPermissions(context: Context, permissions: Array<out String>) {
+        permissions.forEach {
+            if (!manifestPermission(context).contains(it)) {
+                KL.e("Requested permission $it is not stated in the manifest")
+                context.toast("$it is not in the manifest")
+                //we'll let the request pass through so it can be denied and so the callback can be triggered
+            }
+        }
         val activity = (context as? Activity) ?: throw KauException("Context is not an instance of an activity; cannot request permissions")
         KL.d("Requesting permissions ${permissions.contentToString()}")
         ActivityCompat.requestPermissions(activity, permissions, 1)
diff --git a/core/src/main/kotlin/ca/allanwang/kau/ui/views/MeasureSpecDelegate.kt b/core/src/main/kotlin/ca/allanwang/kau/ui/views/MeasureSpecDelegate.kt
index edc1536..716fd71 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/ui/views/MeasureSpecDelegate.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/ui/views/MeasureSpecDelegate.kt
@@ -11,6 +11,8 @@ import ca.allanwang.kau.utils.parentViewGroup
  * Created by Allan Wang on 2017-07-14.
  *
  * Handles relative sizes for any view
+ * You may delegate all methods to [MeasureSpecDelegate]
+ * and call the two methods: [initAttrs] and [onMeasure]
  */
 interface MeasureSpecContract {
 
@@ -53,6 +55,16 @@ interface MeasureSpecContract {
      * Calculates the final measure specs
      * Call this from [View.onMeasure] and send the Pair result as the specs
      * The pair is of the format (width, height)
+     *
+     * Example:
+     * <pre>
+     * {@code
+     * override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
+     *     val result = onMeasure(this, widthMeasureSpec, heightMeasureSpec)
+     *     super.onMeasure(result.first, result.second)
+     * }
+     * }
+     * </pre>
      */
     fun onMeasure(view: View, widthMeasureSpec: Int, heightMeasureSpec: Int): Pair<Int, Int>
 }
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 dedfbbf..b39540c 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/xml/FAQ.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/xml/FAQ.kt
@@ -22,16 +22,28 @@ fun Context.kauParseFaq(@XmlRes xmlRes: Int, withNumbering: Boolean = true): Lis
         parser: XmlResourceParser ->
         var eventType = parser.eventType
         var question: Spanned? = null
+        var flag = -1 //-1, 0, 1 -> invalid, question, answer
         while (eventType != XmlPullParser.END_DOCUMENT) {
             if (eventType == XmlPullParser.START_TAG) {
-                if (parser.name == "question") {
-                    var q = parser.text.replace("\n", "<br/>")
-                    if (withNumbering) q = "${items.size + 1}. $q"
-                    question = Html.fromHtml(q)
-                } else if (parser.name == "answer") {
-                    items.add(Pair(question ?: throw IllegalArgumentException("KAU FAQ answer found without a question"),
-                            Html.fromHtml(parser.text.replace("\n", "<br/>"))))
-                    question = null
+                flag = when (parser.name) {
+                    "question" -> 0
+                    "answer" -> 1
+                    else -> -1
+                }
+            } else if (eventType == XmlPullParser.TEXT) {
+                when (flag) {
+                    0 -> {
+                        var q = parser.text.replace("\n", "<br/>")
+                        if (withNumbering) q = "${items.size + 1}. $q"
+                        question = Html.fromHtml(q)
+                        flag = -1
+                    }
+                    1 -> {
+                        items.add(Pair(question ?: throw IllegalArgumentException("KAU FAQ answer found without a question"),
+                                Html.fromHtml(parser.text.replace("\n", "<br/>"))))
+                        question = null
+                        flag = -1
+                    }
                 }
             }
 
diff --git a/docs/Changelog.md b/docs/Changelog.md
index 9a1ec82..64d4644 100644
--- a/docs/Changelog.md
+++ b/docs/Changelog.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## v3.2.2
+* :core: Add simple KauBaseActivity so that activities extending AppCompatActivity can have some default kau helpers implemented
+* :core: The permission manager will now notify you if you try to request a permission that isn\'t added to your manifest
+* :core: Create faq parser
+* Begin writing android tests
+
 ## v3.2.1
 * :core: Remove requestLayout call from setMargin and setPadding
 * :core: Fix kau direction bits
diff --git a/gradle.properties b/gradle.properties
index 084621b..5fa8125 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -30,7 +30,7 @@ BLURRY=2.1.1
 CONSTRAINT_LAYOUT=1.1.0-beta1
 FAST_ADAPTER=2.6.2
 FAST_ADAPTER_COMMONS=2.6.0
-GLIDE=4.0.0-RC1
+GLIDE=4.0.0
 ICONICS=2.9.0
 IICON_GOOGLE=3.0.1.1
 MATERIAL_DIALOG=0.9.4.5
diff --git a/kpref-activity/src/main/kotlin/ca/allanwang/kau/kpref/activity/KPrefActivity.kt b/kpref-activity/src/main/kotlin/ca/allanwang/kau/kpref/activity/KPrefActivity.kt
index 91c0cf2..4324fd3 100644
--- a/kpref-activity/src/main/kotlin/ca/allanwang/kau/kpref/activity/KPrefActivity.kt
+++ b/kpref-activity/src/main/kotlin/ca/allanwang/kau/kpref/activity/KPrefActivity.kt
@@ -12,6 +12,7 @@ import android.view.animation.Animation
 import android.view.animation.AnimationUtils
 import android.widget.FrameLayout
 import android.widget.ViewAnimator
+import ca.allanwang.kau.internal.KauBaseActivity
 import ca.allanwang.kau.kpref.activity.items.KPrefItemCore
 import ca.allanwang.kau.ui.views.RippleCanvas
 import ca.allanwang.kau.ui.widgets.TextSlider
@@ -21,7 +22,7 @@ import ca.allanwang.kau.utils.statusBarColor
 import ca.allanwang.kau.utils.string
 import com.mikepenz.fastadapter.commons.adapters.FastItemAdapter
 
-abstract class KPrefActivity : AppCompatActivity(), KPrefActivityContract {
+abstract class KPrefActivity : KauBaseActivity(), KPrefActivityContract {
 
     val adapter: FastItemAdapter<KPrefItemCore>
         @Suppress("UNCHECKED_CAST")
diff --git a/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaItem.kt b/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaItem.kt
index 3947809..b6f3721 100644
--- a/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaItem.kt
+++ b/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaItem.kt
@@ -40,6 +40,7 @@ class MediaItem(val data: MediaModel)
         super.bindView(holder, payloads)
         Glide.with(holder.itemView)
                 .load(data.data)
+                .applyMediaOptions(holder.itemView.context)
                 .listener(object : RequestListener<Drawable> {
                     override fun onLoadFailed(e: GlideException?, model: Any, target: Target<Drawable>, isFirstResource: Boolean): Boolean {
                         failedToLoad = true
diff --git a/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaItemBasic.kt b/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaItemBasic.kt
index 4fbe955..c28ed29 100644
--- a/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaItemBasic.kt
+++ b/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaItemBasic.kt
@@ -47,6 +47,7 @@ class MediaItemBasic(val data: MediaModel)
         super.bindView(holder, payloads)
         Glide.with(holder.itemView)
                 .load(data.data)
+                .applyMediaOptions(holder.itemView.context)
                 .listener(object : RequestListener<Drawable> {
                     override fun onLoadFailed(e: GlideException?, model: Any, target: Target<Drawable>, isFirstResource: Boolean): Boolean {
                         holder.image.setImageDrawable(MediaPickerCore.getErrorDrawable(holder.itemView.context))
diff --git a/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaPickerBinder.kt b/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaPickerBinder.kt
index bdd25ba..cb218fc 100644
--- a/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaPickerBinder.kt
+++ b/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaPickerBinder.kt
@@ -1,8 +1,12 @@
 package ca.allanwang.kau.mediapicker
 
 import android.app.Activity
+import android.content.Context
 import android.content.Intent
 import ca.allanwang.kau.utils.startActivityForResult
+import com.bumptech.glide.RequestBuilder
+import com.bumptech.glide.load.engine.DiskCacheStrategy
+import com.bumptech.glide.request.RequestOptions
 
 /**
  * Created by Allan Wang on 2017-07-21.
@@ -31,3 +35,6 @@ internal const val MEDIA_PICKER_RESULT = "media_picker_result"
 internal const val ANIMATION_DURATION = 200L
 internal const val ANIMATION_SCALE = 0.95f
 
+internal fun <T> RequestBuilder<T>.applyMediaOptions(context: Context)
+        = apply(RequestOptions().diskCacheStrategy(DiskCacheStrategy.RESOURCE).centerCrop().override(MediaPickerCore.viewSize(context)))
+
diff --git a/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaPickerCore.kt b/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaPickerCore.kt
index 255cec4..ee3481d 100644
--- a/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaPickerCore.kt
+++ b/mediapicker/src/main/kotlin/ca/allanwang/kau/mediapicker/MediaPickerCore.kt
@@ -12,34 +12,42 @@ import android.provider.MediaStore
 import android.support.v4.app.LoaderManager
 import android.support.v4.content.CursorLoader
 import android.support.v4.content.Loader
-import android.support.v7.app.AppCompatActivity
 import android.support.v7.widget.GridLayoutManager
 import android.support.v7.widget.RecyclerView
 import ca.allanwang.kau.animators.FadeScaleAnimatorAdd
 import ca.allanwang.kau.animators.KauAnimator
+import ca.allanwang.kau.internal.KauBaseActivity
+import ca.allanwang.kau.kotlin.lazyContext
 import ca.allanwang.kau.permissions.kauRequestPermissions
 import ca.allanwang.kau.utils.dimenPixelSize
 import ca.allanwang.kau.utils.toast
+import com.bumptech.glide.Glide
 import com.mikepenz.fastadapter.IItem
 import com.mikepenz.fastadapter.commons.adapters.FastItemAdapter
 import com.mikepenz.google_material_typeface_library.GoogleMaterial
 import com.mikepenz.iconics.IconicsDrawable
+import org.jetbrains.anko.doAsync
+import java.util.concurrent.ExecutionException
+import java.util.concurrent.Future
 
 /**
  * Created by Allan Wang on 2017-07-23.
  *
  * Container for the main logic behind the both pickers
  */
-abstract class MediaPickerCore<T : IItem<*, *>>(val mediaType: MediaType) : AppCompatActivity(), LoaderManager.LoaderCallbacks<Cursor> {
+abstract class MediaPickerCore<T : IItem<*, *>>(
+        val mediaType: MediaType, val preload: Boolean = mediaType == MediaType.VIDEO
+) : KauBaseActivity(), LoaderManager.LoaderCallbacks<Cursor> {
 
     companion object {
+        val viewSize = lazyContext { computeViewSize(it) }
         /**
          * Given the dimensions of our device and a minimum image size,
          * Computer the optimal column count for our grid layout
          *
          * @return column count
          */
-        fun computeColumnCount(context: Context): Int {
+        private fun computeColumnCount(context: Context): Int {
             val minImageSizePx = context.dimenPixelSize(R.dimen.kau_image_minimum_size)
             val screenWidthPx = context.resources.displayMetrics.widthPixels
             return screenWidthPx / minImageSizePx
@@ -48,7 +56,7 @@ abstract class MediaPickerCore<T : IItem<*, *>>(val mediaType: MediaType) : AppC
         /**
          * Compute our resulting image size
          */
-        fun computeViewSize(context: Context): Int {
+        private fun computeViewSize(context: Context): Int {
             val screenWidthPx = context.resources.displayMetrics.widthPixels
             return screenWidthPx / computeColumnCount(context)
         }
@@ -84,6 +92,9 @@ abstract class MediaPickerCore<T : IItem<*, *>>(val mediaType: MediaType) : AppC
         const val CACHE_SIZE = 80
     }
 
+    private var hasPreloaded = false
+    private var prefetcher: Future<*>? = null
+
     val adapter: FastItemAdapter<T> = FastItemAdapter()
 
     /**
@@ -140,13 +151,30 @@ abstract class MediaPickerCore<T : IItem<*, *>>(val mediaType: MediaType) : AppC
             onStatusChange(false)
             return
         }
-        val items = mutableListOf<T>()
+        val models = mutableListOf<MediaModel>()
         do {
             val model = MediaModel(data)
             if (!shouldLoad(model)) continue
-            items.add(converter(model))
+            models.add(model)
         } while (data.moveToNext())
-        addItems(items)
+        addItems(models.map { converter(it) })
+        if (!hasPreloaded && preload) {
+            hasPreloaded = true
+            prefetcher = doAsync {
+                models.subList(0, Math.min(models.size, 50)).map { it.data }.forEach {
+                    val target = Glide.with(this@MediaPickerCore).load(it)
+                            .applyMediaOptions(this@MediaPickerCore)
+                            .submit()
+                    try {
+                        target.get()
+                    } catch (ignored: InterruptedException) {
+                    } catch (ignored: ExecutionException) {
+                    } finally {
+                        Glide.with(this@MediaPickerCore).clear(target)
+                    }
+                }
+            }
+        }
     }
 
     abstract fun converter(model: MediaModel): T
@@ -179,4 +207,8 @@ abstract class MediaPickerCore<T : IItem<*, *>>(val mediaType: MediaType) : AppC
 
     open fun onStatusChange(loaded: Boolean) {}
 
+    override fun onDestroy() {
+        prefetcher?.cancel(true)
+        super.onDestroy()
+    }
 }
\ No newline at end of file
diff --git a/mediapicker/src/main/res/layout/kau_blurred_imageview.xml b/mediapicker/src/main/res/layout/kau_blurred_imageview.xml
index e28cb9a..70ad00e 100644
--- a/mediapicker/src/main/res/layout/kau_blurred_imageview.xml
+++ b/mediapicker/src/main/res/layout/kau_blurred_imageview.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <merge xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
diff --git a/sample/src/main/kotlin/ca/allanwang/kau/sample/AnimActivity.kt b/sample/src/main/kotlin/ca/allanwang/kau/sample/AnimActivity.kt
index abf44d8..cd86d38 100644
--- a/sample/src/main/kotlin/ca/allanwang/kau/sample/AnimActivity.kt
+++ b/sample/src/main/kotlin/ca/allanwang/kau/sample/AnimActivity.kt
@@ -1,11 +1,11 @@
 package ca.allanwang.kau.sample
 
 import android.os.Bundle
-import android.support.v7.app.AppCompatActivity
+import ca.allanwang.kau.internal.KauBaseActivity
 import ca.allanwang.kau.logging.KL
 import ca.allanwang.kau.permissions.PERMISSION_ACCESS_COARSE_LOCATION
 import ca.allanwang.kau.permissions.PERMISSION_ACCESS_FINE_LOCATION
-import ca.allanwang.kau.permissions.kauOnRequestPermissionsResult
+import ca.allanwang.kau.permissions.PERMISSION_CAMERA
 import ca.allanwang.kau.permissions.kauRequestPermissions
 import ca.allanwang.kau.swipe.SWIPE_EDGE_LEFT
 import ca.allanwang.kau.swipe.kauSwipeOnCreate
@@ -23,7 +23,7 @@ import com.mikepenz.fastadapter.commons.adapters.FastItemAdapter
  * Activity for animations
  * Now also showcases permissions
  */
-class AnimActivity : AppCompatActivity() {
+class AnimActivity : KauBaseActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -32,7 +32,8 @@ class AnimActivity : AppCompatActivity() {
 
         adapter.add(listOf(
                 PERMISSION_ACCESS_COARSE_LOCATION,
-                PERMISSION_ACCESS_FINE_LOCATION
+                PERMISSION_ACCESS_FINE_LOCATION,
+                PERMISSION_CAMERA
         ).map { PermissionCheckbox(it) })
         adapter.withOnClickListener { _, _, item, _ ->
             KL.d("Perm Click")
@@ -62,8 +63,4 @@ class AnimActivity : AppCompatActivity() {
         startActivitySlideOut(MainActivity::class.java)
     }
 
-    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
-        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
-        kauOnRequestPermissionsResult(permissions, grantResults)
-    }
 }
\ No newline at end of file
diff --git a/sample/src/main/res/xml/kau_changelog.xml b/sample/src/main/res/xml/kau_changelog.xml
index 59d51c2..615f467 100644
--- a/sample/src/main/res/xml/kau_changelog.xml
+++ b/sample/src/main/res/xml/kau_changelog.xml
@@ -6,7 +6,14 @@
     <item text="" />
     -->
 	
-	 <version title="v3.2.1"/>
+	<version title="v3.2.2"/>
+    <item text=":core: Add simple KauBaseActivity so that activities extending AppCompatActivity can have some default kau helpers implemented" />
+    <item text=":core: The permission manager will now notify you if you try to request a permission that isn\'t added to your manifest" />
+    <item text=":core: Create faq parser" />
+    <item text="Begin writing android tests" />
+    <item text="" />
+	
+	<version title="v3.2.1"/>
     <item text=":core: Remove requestLayout call from setMargin and setPadding" />
     <item text=":core: Fix kau direction bits" />
     <item text=":core: Greatly simplify ripple canvas and truly support transparent ripples" />
diff --git a/settings.gradle b/settings.gradle
index 1a883b6..031dff4 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,10 +1,12 @@
 include ':core',
-        ':sample',
+        ':core-ui',
 
         ':about',
         ':adapter',
         ':colorpicker',
-        ':core-ui',
         ':mediapicker',
         ':kpref-activity',
         ':searchview'
+
+if (!System.env.JITPACK)
+    include ':sample'
\ No newline at end of file