Add new Android voice translator sample app

This adds a simple voice translator Android app that uses
the JNI bindings to the PGF C runtime.

Caveats:

- Since the C runtime doesn't compile for Android right now,
  I've bundled an old copy, along with its Java bindings.
  That should be removed once the C runtime compiels for Android
  again.

- Adding an automated build would be nice.

- Replacing the grammar requires editing a Java file, that should 
  really be more dynamic.

4 files changed, 12 insertions, 0 deletions

diff --git a/src/ui/android/res/drawable/brushed_metal.png b/src/ui/android/res/drawable/brushed_metal.png
deleted file mode 100644
index c2f03fe7d..000000000
--- a/src/ui/android/res/drawable/brushed_metal.png
+++ /dev/null
diff --git a/src/ui/android/res/drawable/first_person_utterance_bg.xml b/src/ui/android/res/drawable/first_person_utterance_bg.xml
new file mode 100644
index 000000000..9eb02aef1
--- /dev/null
+++ b/src/ui/android/res/drawable/first_person_utterance_bg.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <corners android:radius="4dp" />
+    <solid android:color="#75CD75" />
+</shape>
\ No newline at end of file
diff --git a/src/ui/android/res/drawable/icon.png b/src/ui/android/res/drawable/icon.png
deleted file mode 100644
index a07c69fa5..000000000
--- a/src/ui/android/res/drawable/icon.png
+++ /dev/null
diff --git a/src/ui/android/res/drawable/second_person_utterance_bg.xml b/src/ui/android/res/drawable/second_person_utterance_bg.xml
new file mode 100644
index 000000000..4acf07c67
--- /dev/null
+++ b/src/ui/android/res/drawable/second_person_utterance_bg.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <corners android:radius="4dp" />
+    <solid android:color="#7575CD" />
+</shape>
\ No newline at end of file