1 files changed, 29 insertions, 0 deletions
diff --git a/app/src/main/kotlin/com/pitchedapps/frost/contracts/FrostThemable.kt b/app/src/main/kotlin/com/pitchedapps/frost/contracts/FrostThemable.kt
new file mode 100644
index 00000000..3322f62e
--- /dev/null
+++ b/app/src/main/kotlin/com/pitchedapps/frost/contracts/FrostThemable.kt
@@ -0,0 +1,29 @@
+package com.pitchedapps.frost.contracts
+
+import android.view.View
+import android.widget.TextView
+
+/**
+ * Created by Allan Wang on 2017-11-07.
+ *
+ * Should be implemented by all views in [com.pitchedapps.frost.activities.MainActivity]
+ * to allow for instant view reloading
+ */
+interface FrostThemable {
+
+    /**
+     * Change all necessary view components to the new theme
+     * and call whatever other children that also implement [FrostThemable]
+     */
+    fun reloadTheme()
+
+    fun setTextColors(color: Int, vararg textViews: TextView?) =
+            themeViews(color, *textViews) { setTextColor(it) }
+
+    fun setBackgrounds(color: Int, vararg views: View?) =
+            themeViews(color, *views) { setBackgroundColor(it) }
+
+    fun <T : View> themeViews(color: Int, vararg views: T?, action: T.(Int) -> Unit) =
+            views.filterNotNull().forEach { it.action(color) }
+
+}
+\ No newline at end of file