From f94d6f9694973c2a323e565794d948002593df0a Mon Sep 17 00:00:00 2001
From: Allan Wang <me@allanwang.ca>
Date: Mon, 1 Jan 2018 23:11:23 -0500
Subject: Allow usage of reified generics instead of passing class

---
 .../kotlin/ca/allanwang/kau/utils/ActivityUtils.kt | 16 ++++++++---
 .../kotlin/ca/allanwang/kau/utils/ContextUtils.kt  | 31 +++++++++++++++-------
 2 files changed, 34 insertions(+), 13 deletions(-)

(limited to 'core/src')

diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/ActivityUtils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/ActivityUtils.kt
index 90961c5..3484353 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/ActivityUtils.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/ActivityUtils.kt
@@ -28,18 +28,28 @@ annotation class KauActivity
  * Counterpart of [Activity.startActivityForResult]
  * For starting activities without result, see [startActivity]
  */
-inline fun Activity.startActivityForResult(
-        clazz: Class<out Activity>,
+inline fun <reified T : Activity> Activity.startActivityForResult(
         requestCode: Int,
         bundleBuilder: Bundle.() -> Unit = {},
         intentBuilder: Intent.() -> Unit = {}) {
-    val intent = Intent(this, clazz)
+    val intent = Intent(this, T::class.java)
     intent.intentBuilder()
     val bundle = Bundle()
     bundle.bundleBuilder()
     startActivityForResult(intent, requestCode, bundle)
 }
 
+@Deprecated("Use reified generic instead of passing class",
+        ReplaceWith("startActivityForResult<T>(requestCode, bundleBuilder, intentBuilder)"),
+        DeprecationLevel.WARNING)
+inline fun <reified T : Activity> Activity.startActivityForResult(
+        clazz: Class<T>,
+        requestCode: Int,
+        bundleBuilder: Bundle.() -> Unit = {},
+        intentBuilder: Intent.() -> Unit = {}) {
+    startActivityForResult<T>(requestCode, bundleBuilder, intentBuilder)
+}
+
 /**
  * Restarts an activity from itself with a fade animation
  * Keeps its existing extra bundles and has a intentBuilder to accept other parameters
diff --git a/core/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt b/core/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt
index 1b8d58c..db54282 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/utils/ContextUtils.kt
@@ -28,21 +28,32 @@ import com.afollestad.materialdialogs.MaterialDialog
 
 /**
  * Helper class to launch an activity from a context
- * Counterpart of [ContextCompat.startActivity]
+ * Counterpart of [Context.startActivity]
  * For starting activities for results, see [startActivityForResult]
  */
-inline fun Context.startActivity(
-        clazz: Class<out Activity>,
+inline fun <reified T : Activity> Context.startActivity(
         clearStack: Boolean = false,
         bundleBuilder: Bundle.() -> Unit = {},
-        intentBuilder: Intent.() -> Unit = {}) {
-    val intent = Intent(this, clazz)
+        intentBuilder: Intent.() -> Unit = {}
+) {
+    val intent = Intent(this, T::class.java)
     if (clearStack) intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK or Intent.FLAG_ACTIVITY_NEW_TASK)
     intent.intentBuilder()
     val bundle = Bundle()
     bundle.bundleBuilder()
-    ContextCompat.startActivity(this, intent, bundle)
-    if (this is Activity && clearStack) finish()
+    startActivity(intent, bundle)
+    if (clearStack && this is Activity) finish()
+}
+
+@Deprecated("Use reified generic instead of passing class",
+        ReplaceWith("startActivity<T>(clearStack, bundleBuilder, intentBuilder)"),
+        DeprecationLevel.WARNING)
+inline fun <reified T : Activity> Context.startActivity(
+        clazz: Class<T>,
+        clearStack: Boolean = false,
+        bundleBuilder: Bundle.() -> Unit = {},
+        intentBuilder: Intent.() -> Unit = {}) {
+    startActivity<T>(clearStack, bundleBuilder, intentBuilder)
 }
 
 
@@ -93,13 +104,13 @@ inline fun Context.dimen(@DimenRes id: Int): Float = resources.getDimension(id)
 inline fun Context.dimenPixelSize(@DimenRes id: Int): Int = resources.getDimensionPixelSize(id)
 inline fun Context.drawable(@DrawableRes id: Int): Drawable = ContextCompat.getDrawable(this, id) ?: throw KauException("Drawable with id $id not found")
 inline fun Context.drawable(@DrawableRes id: Int, fallback: Drawable?): Drawable? = if (id > 0) drawable(id) else fallback
-inline fun Context.interpolator(@InterpolatorRes id: Int) = AnimationUtils.loadInterpolator(this, id)
-inline fun Context.animation(@AnimRes id: Int) = AnimationUtils.loadAnimation(this, id)
+inline fun Context.interpolator(@InterpolatorRes id: Int) = AnimationUtils.loadInterpolator(this, id)!!
+inline fun Context.animation(@AnimRes id: Int) = AnimationUtils.loadAnimation(this, id)!!
 /**
  * Returns plural form of res. The quantity is also passed to the formatter as an int
  */
 inline fun Context.plural(@PluralsRes id: Int, quantity: Number)
-        = resources.getQuantityString(id, quantity.toInt(), quantity.toInt())
+        = resources.getQuantityString(id, quantity.toInt(), quantity.toInt())!!
 
 //Attr retrievers
 fun Context.resolveColor(@AttrRes attr: Int, fallback: Int = 0): Int {
-- 
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