Merge pull request gree#340 from gree/feature/android_build_steps

Feature/android build steps

README.md

@@ -1,7 +1,7 @@
 # unity-webview
 
 unity-webview is a plugin for Unity 5 that overlays WebView components
-on Unity view. It works on Android, iOS, Unity Web Player, and OS X
+on Unity view. It works on Android, iOS, Unity Web Player, and Mac
 (Windows is not supported for now).
 
 unity-webview is derived from keijiro-san's
@@ -19,7 +19,7 @@ below:
 
 ## Platform Specific Notes
 
-### OS X (Editor)
+### Mac (Editor)
 
 #### Auto Graphics API
 
@@ -33,7 +33,7 @@ and specify OpenGLCore as below.
 Since Unity 5.3.0, Unity.app is built with ATS (App Transport
 Security) enabled and non-secured connection (HTTP) is not
 permitted. If you want to open `http://foo/bar.html` with this plugin
-on Unity OS X Editor, you need to open
+on Unity Mac Editor, you need to open
 `/Applications/Unity5.3.4p3/Unity.app/Contents/Info.plist` with a text
 editor and add the following,
 
@@ -111,6 +111,29 @@ implementation will adjust Unity's SurfaceView z order. Please refer
 and `plugins/Android/src/net/gree/unitywebview/CUnityPlayer.java` if
 you already have your own activity implementation.
 
+#### How to build WebViewPlugin.jar
+
+The following steps are for Mac but you can follow similar ones for Windows.
+
+1. Install [Android Studio](https://developer.android.com/studio/install).
+2. Open Android Studio and select "Configure/SDK Manager", select the followings with "Show Package Details",
+   and click OK.
+  * SDK Platforms
+    * Android 6.0 (Marshmallow)
+      * Android SDK Platform 23
+  * SDK Tools
+    * Android SDK Build Tools
+      * 28.0.2
+3. Open Terminal.app and perform the followings. You should find
+   `unity-webview/build/Packager/Assets/Plugins/Android/WebViewPlugin.jar` if successful.
+
+```bash
+$ export ANDROID_HOME=~/Library/Android/sdk
+$ export PATH=$PATH:~/Library/Android/sdk/platform-tools/bin:~/Library/Android/sdk/tools:~/Library/Android/sdk/tools/bin
+$ cd unity-webview/plugins/Android
+$ ./install.sh
+```
+
 ### Web Player
 
 The implementation utilizes IFRAME so please put both

plugins/Android/gradle_build/build.gradle

@@ -6,7 +6,7 @@ dependencies {
 
 android {
     compileSdkVersion 23
-    buildToolsVersion "24.0.0"
+    buildToolsVersion "28.0.2"
 
     defaultConfig {
         minSdkVersion 16

plugins/Android/install.sh

@@ -1,29 +1,71 @@
 #!/bin/sh
 
-# OS specific support.  $var _must_ be set to either true or false.
-cygwin=false
-case "`uname`" in
-CYGWIN*) cygwin=true;;
-esac
-
-# For Cygwin, ensure paths are in UNIX format
-if $cygwin; then
-	[ -n "$ANT_HOME" ] && ANT_HOME=`cygpath --unix "$ANT_HOME"`
-fi
+# required command
+JAR_CMD=`which jar`
+
+# directories
+CWD=`dirname $0`
+CWD=`cd $CWD && pwd -P`
+
+BUILD_DIR="${CWD}/gradle_build"
+LIBS_DIR="${BUILD_DIR}/libs"
+JAVA_DIR="${BUILD_DIR}/src/main/java"
+BIN_DIR="${CWD}/bin"
+
+# options
+MODE="Release"
+SCRIPTING_BACKEND="il2cpp"
+UNITY="/Applications/Unity"
+
+for OPT in $*; do
+  case $OPT in
+    '--release' )
+      MODE="Release";;
+    '--develop' )
+      MODE="Develop";;
+    '--il2cpp' )
+      SCRIPTING_BACKEND="il2cpp";;
+    '--mono' )
+      SCRIPTING_BACKEND="mono";;
+    '--unity' )
+      UNITY=$2
+      shift 2
+      ;;
+  esac
+  shift
+done
+
+UNITY_JAVA_LIB="${UNITY}/PlaybackEngines/AndroidPlayer/Variations/${SCRIPTING_BACKEND}/${MODE}/Classes/classes.jar"
+
+# clean
+rm -rf ${JAVA_DIR}/*
+rm -rf ${LIB_DIR}
+rm -f ${BUILD_DIR}/src/main/AndroidManifest.xml
 
-if $cygwin; then
-	UNITYLIBS=`find -L "/cygdrive/c/Program Files/Unity5" | grep classes.jar | tail -1`
+pushd $CWD
+
+# copy unity library
+DEST_DIR='../../build/Packager/Assets/Plugins/Android'
+
+mkdir -p ${LIBS_DIR}
+mkdir -p ${BIN_DIR}
+mkdir -p ${DEST_DIR}
+mkdir -p ${JAVA_DIR}
+
+cp ${UNITY_JAVA_LIB} ${LIBS_DIR}
+cp -r src/net ${JAVA_DIR}
+cp AndroidManifest.xml ${BUILD_DIR}/src/main
+
+# build
+./gradlew assembleRelease
+
+if [ ${JAR_CMD} = "" ];then
+  echo "jar command does not exist"
 else
-	UNITYLIBS=`find -L /Applications/Unity | grep classes.jar | tail -1`
+  jar cvf ${CWD}/bin/WebViewPlugin.jar -C ${BUILD_DIR}/build/intermediates/classes/release net
+  cp -a ${BIN_DIR}/WebViewPlugin.jar ${DEST_DIR}
 fi
 
-DSTDIR="../../build/Packager/Assets/Plugins/Android"
-export ANT_OPTS=-Dfile.encoding=UTF8
-android update project -t android-23 -p .
-mkdir -p libs
-cp "$UNITYLIBS" libs
-ant "-Djava.compilerargs=-Xlint:deprecation" release
-mkdir -p "$DSTDIR"
-cp -a bin/classes.jar "$DSTDIR/WebViewPlugin.jar"
-ant clean
-rm -rf libs res proguard-project.txt
+./gradlew clean
+
+popd # $BUILD_DIR