Add a sample Android app (#183)

Fixes #179 

1 files changed, 120 insertions, 0 deletions

diff --git a/tools/build-amber-sample.sh b/tools/build-amber-sample.sh
new file mode 100755
index 0000000..7d9fb0a
--- /dev/null
+++ b/tools/build-amber-sample.sh
@@ -0,0 +1,120 @@
+#!/bin/bash
+
+# Copyright 2019 The Amber Authors.
+#
+# 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
+#
+#     https://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.
+
+set -x
+
+if [[ $1 == "" ]]; then
+  echo "Usage: $0 [build directory]"
+  exit 1
+fi
+
+BUILD_DIR=$(readlink -f $1)
+if [[ $(ls $BUILD_DIR 2> /dev/null) == "" ]]; then
+  mkdir -p $BUILD_DIR
+fi
+
+if [[ $ANDROID_SDK_HOME == "" ]]; then
+  echo "Error: ANDROID_SDK_HOME missing, please set env variable e.g.,"
+  echo "       $ export ANDROID_SDK_HOME=path/to/Android/SDK"
+  exit 1
+fi
+
+if [[ $ANDROID_NDK_HOME == "" ]]; then
+  echo "Error: ANDROID_NDK_HOME missing, please set env variable e.g.,"
+  echo "       $ export ANDROID_NDK_HOME=path/to/Android/NDK"
+  exit 1
+fi
+
+if [[ $(command -v javac) == "" ]]; then
+  echo "Error: Install Java. Recommended version is Java 8."
+  exit 1
+fi
+
+if [[ $KEY_STORE_PATH == "" ]]; then
+  echo "Error: KEY_STORE_PATH missing, please set env variable."
+  exit 1
+fi
+
+ANDROID_SOURCE_DIR=$(dirname $(readlink -f $0))/../android_sample
+
+APK_NAME=AmberSample.apk
+ANDROID_PLATFORM=android-28
+ANDROID_BUILD_TOOL_VERSION=28.0.0
+ABI=arm64-v8a
+BUILD_TYPE=Release
+
+AAPT=$ANDROID_SDK_HOME/build-tools/$ANDROID_BUILD_TOOL_VERSION/aapt
+AAPT_ADD="$AAPT add"
+AAPT_PACK="$AAPT package -f -I
+           $ANDROID_SDK_HOME/platforms/$ANDROID_PLATFORM/android.jar"
+
+DX="$ANDROID_SDK_HOME/build-tools/$ANDROID_BUILD_TOOL_VERSION/dx --dex"
+
+JAVAC="javac -classpath
+       $ANDROID_SDK_HOME/platforms/$ANDROID_PLATFORM/android.jar
+       -sourcepath $BUILD_DIR/gen -d $BUILD_DIR"
+
+mkdir -p $BUILD_DIR/gen $BUILD_DIR/output/lib/$ABI $BUILD_DIR/$BUILD_TYPE
+
+pushd $BUILD_DIR/$BUILD_TYPE
+cmake \
+  -DANDROID_ABI=$ABI \
+  -DANDROID_PLATFORM=$ANDROID_PLATFORM \
+  -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=$BUILD_DIR/output/lib/$ABI \
+  -DCMAKE_BUILD_TYPE=$BUILD_TYPE \
+  -DANDROID_NDK=$ANDROID_NDK_HOME \
+  -DCMAKE_TOOLCHAIN_FILE=$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake \
+  -DCMAKE_MAKE_PROGRAM=$(which ninja) \
+  -GNinja \
+  -DANDROID_TOOLCHAIN=clang \
+  -DANDROID_STL=c++_static \
+  $ANDROID_SOURCE_DIR
+ninja
+popd
+
+ANDROID_VULKAN=$ANDROID_NDK_HOME/sources/third_party/vulkan
+for f in $(find $ANDROID_VULKAN/src/build-android/jniLibs/$ABI/ -name '*.so')
+do
+  LINK=$BUILD_DIR/output/lib/$ABI/$(basename $f)
+  if [[ $(ls $LINK 2> /dev/null) == "" ]]; then
+    ln -s $f $LINK
+  fi
+done
+
+$AAPT_PACK --non-constant-id -m \
+  -M $ANDROID_SOURCE_DIR/AndroidManifest.xml \
+  -S $ANDROID_SOURCE_DIR/res \
+  -J $BUILD_DIR/gen/ \
+  --generate-dependencies
+
+$AAPT_PACK -m \
+  -M $ANDROID_SOURCE_DIR/AndroidManifest.xml \
+  -A $ANDROID_SOURCE_DIR/assets \
+  -S $ANDROID_SOURCE_DIR/res \
+  -J "$BUILD_DIR/gen" \
+  -F "$BUILD_DIR/$APK_NAME" \
+  --shared-lib $BUILD_DIR/output
+
+$JAVAC $BUILD_DIR/gen/com/google/amber/*.java
+$DX --output="$BUILD_DIR/classes.dex" $BUILD_DIR
+
+cd $BUILD_DIR
+$AAPT_ADD $APK_NAME classes.dex
+
+$ANDROID_SDK_HOME/build-tools/$ANDROID_BUILD_TOOL_VERSION/apksigner sign \
+--min-sdk-version 28 --ks $KEY_STORE_PATH $APK_NAME
+
+echo "Successfully built $BUILD_DIR/$APK_NAME"