From: Alexis Laferrière <alexis.laf@xymus.net>
Date: Tue, 17 Mar 2015 18:25:41 +0000 (-0400)
Subject: examples/calculator: save and load state on request
X-Git-Tag: v0.7.3~21^2~1
X-Git-Url: http://nitlanguage.org

examples/calculator: save and load state on request

Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
---

diff --git a/examples/calculator/src/calculator_android.nit b/examples/calculator/src/calculator_android.nit
index 9b79886..ec7b374 100644
--- a/examples/calculator/src/calculator_android.nit
+++ b/examples/calculator/src/calculator_android.nit
@@ -86,6 +86,32 @@ redef class Activity
 		native.content_view = layout
 	end
 
+	redef fun on_save_instance_state(state)
+	do
+		super
+
+		var nity = new Bundle.from(state)
+		nity["context"] = context.to_json
+	end
+
+	redef fun on_restore_instance_state(state)
+	do
+		super
+
+		var nity = new Bundle.from(state)
+		if not nity.has("context") then return
+
+		var json = nity.string("context")
+		if json == null then return
+
+		context = new CalculatorContext.from_json(json)
+	end
+
+	redef fun on_resume
+	do
+		display.text = context.display_text
+	end
+
 	redef fun catch_event(event)
 	do
 		if event isa ClickEvent then