lib/android: intro the `toast` module

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

diff --git a/lib/android/toast.nit b/lib/android/toast.nit
new file mode 100644 (file)
index 0000000..dd8e149
--- /dev/null
+++ b/lib/android/toast.nit
@@ -0,0 +1,49 @@
+# This file is part of NIT (http://www.nitlanguage.org).
+#
+# Copyright 2014 Alexis Laferrière <alexis.laf@xymus.net>
+#
+# 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.
+
+# Services to display a _toast_, a small popup on Android
+module toast
+
+import native_app_glue
+
+in "Java" `{
+       import android.widget.Toast;
+`}
+
+redef class App
+       # Display a _toast_ with `message`, for longer if `is_long`
+       fun toast(message: String, is_long: Bool)
+       do
+               var jstr = message.to_java_string
+               native_toast(jstr, is_long)
+               jstr.delete_local_ref
+       end
+
+       private fun native_toast(message: JavaString, is_long: Bool)
+       import native_activity in "Java" `{
+               final android.app.NativeActivity context = App_native_activity(recv);
+               final CharSequence final_message = message;
+               final int duration = is_long? Toast.LENGTH_LONG: Toast.LENGTH_SHORT;
+
+               context.runOnUiThread(new Runnable() {
+                       @Override
+                       public void run()  {
+                               Toast toast = Toast.makeText(context, final_message, duration);
+                               toast.show();
+                       }
+               });
+       `}
+end