From dcdf008c1e83af4ba0509736a389522a71797264 Mon Sep 17 00:00:00 2001
From: Allan Wang <me@allanwang.ca>
Date: Mon, 12 Jun 2017 16:15:00 -0700
Subject: Add start activity

---
 README.md                                                      | 1 +
 library/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt | 8 ++++++++
 library/src/main/res/layout/kau_activity_kpref.xml             | 5 +++--
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 30cfe67..17145d5 100644
--- a/README.md
+++ b/README.md
@@ -143,6 +143,7 @@ The canvas also supports color fading and direct color setting so it can effecti
 > Extends Activity
 * Restart an activity
 > Extends Context
+* Start Activity using the class, with optional intents and stack clearing
 * Create a toast directly
 * Get resource values through `.color(id)`, `.dimen(id)`, `.drawable(id)`, `.integer(id)`, `.string(id)`
 * Get attribute values through resolve methods
diff --git a/library/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt b/library/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt
index 5547fe1..a856ed2 100644
--- a/library/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt
+++ b/library/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt
@@ -30,6 +30,14 @@ fun Activity.restart(extras: ((Intent) -> Unit)? = null) {
     overridePendingTransition(0, 0)
 }
 
+fun Context.startActivity(clazz: Class<out Activity>, clearStack: Boolean = false, intentBuilder: Intent.() -> Unit = {}) {
+    val intent = (Intent(this, clazz))
+    if (clearStack) intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_NEW_TASK)
+    intent.intentBuilder()
+    startActivity(intent)
+    if (this is Activity && clearStack) finish()
+}
+
 var Activity.navigationBarColor: Int
     get() = if (buildIsLollipopAndUp) window.navigationBarColor else Color.BLACK
     set(value) {
diff --git a/library/src/main/res/layout/kau_activity_kpref.xml b/library/src/main/res/layout/kau_activity_kpref.xml
index 35f16cd..4135edc 100644
--- a/library/src/main/res/layout/kau_activity_kpref.xml
+++ b/library/src/main/res/layout/kau_activity_kpref.xml
@@ -8,16 +8,17 @@
         android:id="@+id/kau_toolbar_ripple"
         android:layout_width="0dp"
         android:layout_height="0dp"
-        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="@+id/kau_toolbar"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintBottom_toBottomOf="@+id/kau_toolbar" />
+        app:layout_constraintTop_toTopOf="parent" />
 
     <android.support.v7.widget.Toolbar
         android:id="@id/kau_toolbar"
         android:layout_width="0dp"
         android:layout_height="?attr/actionBarSize"
         android:layout_marginTop="@dimen/kau_status_bar_height"
+        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
-- 
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