From: Alexis Laferrière <alexis.laf@xymus.net>
Date: Sun, 1 May 2016 21:43:48 +0000 (-0400)
Subject: calculator: intro Android adaptation
X-Git-Url: http://nitlanguage.org

calculator: intro Android adaptation

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

diff --git a/examples/calculator/src/android_calculator.nit b/examples/calculator/src/android_calculator.nit
new file mode 100644
index 0000000..7fe192c
--- /dev/null
+++ b/examples/calculator/src/android_calculator.nit
@@ -0,0 +1,36 @@
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Aesthetic adaptations for Android
+module android_calculator
+
+import calculator
+import android::ui
+
+redef class Button
+	init do set_android_style(native, (text or else "?").is_int)
+
+	private fun set_android_style(java_button: NativeButton, is_number: Bool)
+	in "Java" `{
+		// Flatten the background and use a different color for digit buttons
+		int color = is_number? android.graphics.Color.DKGRAY: android.graphics.Color.TRANSPARENT;
+		java_button.setBackgroundColor(color);
+
+		// Center the label on both horizontal and vertical axes
+		java_button.setGravity(android.view.Gravity.CENTER);
+
+		// Set lowercase text to correctly display constants like e and π
+		java_button.setAllCaps(false);
+	`}
+end