Update kpref-activity's min-sdk and other minor changes (#11)3.1.0

* Move some resources to public

* Lower kpref minsdk

* Remove excess kauUtils annotations

* Allow nullable throwable

* Do not throw null throwable

* Make image picker base abstract again

* Migrate about strings to private

* Update readme

* Update readme

* Update sample tagging

* Update adapter readme

11 files changed, 33 insertions, 13 deletions

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 b978a6e..91c0cf2 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
@@ -1,5 +1,6 @@
 package ca.allanwang.kau.kpref.activity
 
+import android.annotation.SuppressLint
 import android.os.Bundle
 import android.support.annotation.StringRes
 import android.support.constraint.ConstraintLayout
@@ -51,6 +52,7 @@ abstract class KPrefActivity : AppCompatActivity(), KPrefActivityContract {
      */
     abstract fun kPrefCoreAttributes(): CoreAttributeContract.() -> Unit
 
+    @SuppressLint("NewApi")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         //setup layout
diff --git a/kpref-activity/src/main/kotlin/ca/allanwang/kau/kpref/activity/items/KPrefCheckbox.kt b/kpref-activity/src/main/kotlin/ca/allanwang/kau/kpref/activity/items/KPrefCheckbox.kt
index 19bdb56..5738022 100644
--- a/kpref-activity/src/main/kotlin/ca/allanwang/kau/kpref/activity/items/KPrefCheckbox.kt
+++ b/kpref-activity/src/main/kotlin/ca/allanwang/kau/kpref/activity/items/KPrefCheckbox.kt
@@ -1,5 +1,6 @@
 package ca.allanwang.kau.kpref.activity.items
 
+import android.support.v7.widget.AppCompatCheckBox
 import android.view.View
 import android.widget.CheckBox
 import ca.allanwang.kau.kpref.activity.R
@@ -15,7 +16,7 @@ open class KPrefCheckbox(builder: BaseContract<Boolean>) : KPrefItemBase<Boolean
 
     override fun defaultOnClick(itemView: View, innerContent: View?): Boolean {
         pref = !pref
-        (innerContent as CheckBox).isChecked = pref
+        (innerContent as AppCompatCheckBox).isChecked = pref
         return true
     }
 
diff --git a/kpref-activity/src/main/kotlin/ca/allanwang/kau/kpref/activity/items/KPrefItemCore.kt b/kpref-activity/src/main/kotlin/ca/allanwang/kau/kpref/activity/items/KPrefItemCore.kt
index 908c139..bd245af 100644
--- a/kpref-activity/src/main/kotlin/ca/allanwang/kau/kpref/activity/items/KPrefItemCore.kt
+++ b/kpref-activity/src/main/kotlin/ca/allanwang/kau/kpref/activity/items/KPrefItemCore.kt
@@ -1,5 +1,6 @@
 package ca.allanwang.kau.kpref.activity.items
 
+import android.annotation.SuppressLint
 import android.support.annotation.CallSuper
 import android.support.annotation.IdRes
 import android.support.annotation.LayoutRes
@@ -31,6 +32,7 @@ abstract class KPrefItemCore(val core: CoreContract) : AbstractItem<KPrefItemCor
 
     override final fun getViewHolder(v: View) = ViewHolder(v)
 
+    @SuppressLint("NewApi")
     @CallSuper
     override fun bindView(viewHolder: ViewHolder, payloads: List<Any>) {
         super.bindView(viewHolder, payloads)
@@ -50,7 +52,7 @@ abstract class KPrefItemCore(val core: CoreContract) : AbstractItem<KPrefItemCor
                 desc?.setTextColor(textColor)
             }
             val accentColor = core.globalOptions.accentColor?.invoke()
-            if (accentColor != null) {
+            if (accentColor != null && buildIsLollipopAndUp) {
                 icon?.drawable?.setTint(accentColor)
             }
             onPostBindView(this, textColor, accentColor)
diff --git a/kpref-activity/src/main/res/values/ids.xml b/kpref-activity/src/main/res-public/values/ids.xml
index 3bd69ed..3bd69ed 100644
--- a/kpref-activity/src/main/res/values/ids.xml
+++ b/kpref-activity/src/main/res-public/values/ids.xml
diff --git a/kpref-activity/src/main/res-public/values/public.xml b/kpref-activity/src/main/res-public/values/public.xml
index cf14680..b5fb383 100644
--- a/kpref-activity/src/main/res-public/values/public.xml
+++ b/kpref-activity/src/main/res-public/values/public.xml
@@ -1,4 +1,19 @@
 <resources xmlns:tools='http://schemas.android.com/tools' tools:ignore='ResourceName'>
 <!-- AUTO-GENERATED FILE.  DO NOT MODIFY. public.xml is generated by the generatepublicxml gradle task -->
-    <public name='dummy' type='id' />
+    <public name='kau_pref_barrier' type='id' />
+    <public name='kau_pref_container' type='id' />
+    <public name='kau_pref_desc' type='id' />
+    <public name='kau_pref_icon' type='id' />
+    <public name='kau_pref_inner_content' type='id' />
+    <public name='kau_pref_inner_frame' type='id' />
+    <public name='kau_pref_item_checkbox' type='id' />
+    <public name='kau_pref_item_color_picker' type='id' />
+    <public name='kau_pref_item_header' type='id' />
+    <public name='kau_pref_item_plain_text' type='id' />
+    <public name='kau_pref_item_seekbar' type='id' />
+    <public name='kau_pref_item_sub_item' type='id' />
+    <public name='kau_pref_item_text' type='id' />
+    <public name='kau_pref_lower_content' type='id' />
+    <public name='kau_pref_lower_frame' type='id' />
+    <public name='kau_pref_title' type='id' />
 </resources>
\ No newline at end of file
diff --git a/kpref-activity/src/main/res/layout/kau_pref_checkbox.xml b/kpref-activity/src/main/res/layout/kau_pref_checkbox.xml
index 016394f..1fecb4d 100644
--- a/kpref-activity/src/main/res/layout/kau_pref_checkbox.xml
+++ b/kpref-activity/src/main/res/layout/kau_pref_checkbox.xml
@@ -1,4 +1,4 @@
-<CheckBox xmlns:android="http://schemas.android.com/apk/res/android"
+<android.support.v7.widget.AppCompatCheckBox xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@id/kau_pref_inner_content"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
diff --git a/kpref-activity/src/main/res/layout/kau_pref_core.xml b/kpref-activity/src/main/res/layout/kau_pref_core.xml
index 1a53726..4b5de56 100644
--- a/kpref-activity/src/main/res/layout/kau_pref_core.xml
+++ b/kpref-activity/src/main/res/layout/kau_pref_core.xml
@@ -22,7 +22,7 @@
 
         <!--As per Android N, icons (24dp) are aligned to the left rather than centered-->
 
-        <ImageView
+        <android.support.v7.widget.AppCompatImageView
             android:id="@id/kau_pref_icon"
             android:layout_width="56dp"
             android:layout_height="56dp"
@@ -36,7 +36,7 @@
             app:layout_constraintVertical_bias="0.5"
             tools:layout_editor_absoluteX="0dp" />
 
-        <TextView
+        <android.support.v7.widget.AppCompatTextView
             android:id="@id/kau_pref_title"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
@@ -51,13 +51,13 @@
             app:layout_constraintTop_toTopOf="parent"
             tools:layout_editor_absoluteX="-175dp" />
 
-        <TextView
+        <android.support.v7.widget.AppCompatTextView
             android:id="@id/kau_pref_desc"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:ellipsize="end"
             android:maxLines="10"
-            android:textAppearance="?android:attr/textAppearanceListItemSecondary"
+            android:textAppearance="?textAppearanceListItemSecondary"
             android:textColor="?android:attr/textColorSecondary"
             app:layout_constraintBottom_toTopOf="@id/kau_pref_lower_frame"
             app:layout_constraintEnd_toStartOf="@id/kau_pref_inner_frame"
diff --git a/kpref-activity/src/main/res/layout/kau_pref_header.xml b/kpref-activity/src/main/res/layout/kau_pref_header.xml
index 5deece3..d802a14 100644
--- a/kpref-activity/src/main/res/layout/kau_pref_header.xml
+++ b/kpref-activity/src/main/res/layout/kau_pref_header.xml
@@ -1,4 +1,4 @@
-<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+<android.support.v7.widget.AppCompatTextView xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/kau_pref_title"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
@@ -6,5 +6,5 @@
     android:paddingEnd="?android:attr/listPreferredItemPaddingRight"
     android:paddingStart="?android:attr/listPreferredItemPaddingLeft"
     android:paddingTop="16dip"
-    android:textColor="?android:attr/colorAccent"
+    android:textColor="?colorAccent"
     android:textSize="14sp" />
\ No newline at end of file
diff --git a/kpref-activity/src/main/res/layout/kau_pref_seekbar.xml b/kpref-activity/src/main/res/layout/kau_pref_seekbar.xml
index 8da4d5d..0b07e1c 100644
--- a/kpref-activity/src/main/res/layout/kau_pref_seekbar.xml
+++ b/kpref-activity/src/main/res/layout/kau_pref_seekbar.xml
@@ -1,4 +1,4 @@
-<SeekBar xmlns:android="http://schemas.android.com/apk/res/android"
+<android.support.v7.widget.AppCompatSeekBar xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@id/kau_pref_lower_content"
     android:layout_width="match_parent"
     android:paddingTop="@dimen/kau_padding_normal"
diff --git a/kpref-activity/src/main/res/layout/kau_pref_seekbar_text.xml b/kpref-activity/src/main/res/layout/kau_pref_seekbar_text.xml
index 6ba2543..dc11d2a 100644
--- a/kpref-activity/src/main/res/layout/kau_pref_seekbar_text.xml
+++ b/kpref-activity/src/main/res/layout/kau_pref_seekbar_text.xml
@@ -1,6 +1,6 @@
 <!--TextView that aligns to the bottom-->
 
-<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+<android.support.v7.widget.AppCompatTextView xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@id/kau_pref_inner_content"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
diff --git a/kpref-activity/src/main/res/layout/kau_pref_text.xml b/kpref-activity/src/main/res/layout/kau_pref_text.xml
index a4d901e..bae83f2 100644
--- a/kpref-activity/src/main/res/layout/kau_pref_text.xml
+++ b/kpref-activity/src/main/res/layout/kau_pref_text.xml
@@ -1,4 +1,4 @@
-<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+<android.support.v7.widget.AppCompatTextView xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@id/kau_pref_inner_content"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"