unity android plugin

link

unity doc

Editor\Data\PlaybackEngines\AndroidPlayer\Variations\mono\Release\Classes

sdk path : Edit -> Preference -> Externel tool -> Android
C:/Users/XXX/AppData/Local/Android/sdk

Android build:
exportJar: in gradle tasks "other"
built jar: in ProjectName/app/release

trouble shooting:

just copy Android manifest to Unity
delete Theme light, Theme Dark related resources
copy (Android) app/res to (Unity)Plugins/Android
remove unused lib(jar) in Android

一、编译apk时。================================================

1.编译输出apk时报错。

Error building Player: CommandInvokationFailure: Failed to re-package resources. See the Console for details.
D:\android-sdk-windows\build-tools\19.1.0\aapt.exe package --auto-add-overlay -v -f -m -J gen -M AndroidManifest.xml -S "res" -I "D:/android-sdk-windows/platforms/android-21\android.jar" -F bin/resources.ap_

stderr[
res\values\styles.xml:7: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light'.
res\values-v11\styles.xml:7: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light'.
res\values-v14\styles.xml:8: error: Error retrieving parent for item: No resource found that matches the given name 'Theme.AppCompat.Light.DarkActionBar'.
]
答：在styles.xml没有 'Theme.AppCompat.Light 和 Theme.AppCompat.Light.DarkActionBar 这两个皮肤。。。
android 皮肤的使用 在这里。。
http://developer.android.com/guide/topics/ui/themes.html

或者改为：

<resources>

    <!--
        Base application theme, dependent on API level. This theme is replaced
        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
    -->
    <style name="AppBaseTheme" parent="android:Theme.Light.NoTitleBar">
        <!--
            Theme customizations available in newer API levels can go in
            res/values-vXX/styles.xml, while customizations related to
            backward-compatibility can go here.
        -->
    </style>

    <!-- Application theme. -->
    <style name="AppTheme" parent="AppBaseTheme">
        <!-- All customizations that are NOT specific to a particular API-level can go here. -->
    </style>

</resources>

这样也可解决。

2、如果Unity打包过程出现类似下面这样的错误提示：
     Error building Player: CommandInvokationFailure: Failed to re-package resources. See the Console for details.
     X:\Android SDK\adt-bundle-windows-x86-XXXXXX\sdk\build-tools\X.1.0\aapt.exe package --auto-add-overlay -v -f -m -J gen -M AndroidManifest.xml -S "res" -I "E:/Android SDK/adt-bundle-windows-x86-XXXXXX/sdk/platforms/android-X\android.jar" -F bin/resources.ap_
表示在Android外挂项目里的res文件夹里有的地方的xml设置文件里的设置内容找不到，比如一条设置指向一个名为bnt的png图片文件，但这个图片的名字不是这个。

    3、如果Unity打包过程出现类似下面这样的错误提示：
    Error building Player: CommandInvokationFailure: Unable to convert classes into dex format. See the Console for details.
    X:\Program Files\Java\jdk1.X.X_XX\bin\java.exe -Xmx1024M -Dcom.android.sdkmanager.toolsdir="X:/Android SDK/adt-bundle-windows-x86-20130729/sdk\tools" -Dfile.encoding=UTF8 -jar "X:/Program Files/Unity/Editor/Data/BuildTargetTools/AndroidPlayer\sdktools.jar" -
表示你的你复制过来的libs文件夹里的东西和Unity的有冲突，通常是含有和Unity的classes.jar相同内容的jar文件。

二、安装后运行报错。================================================================

1.如果单独在运行没问题，接到Unity打包后在Android机子上一运行就退出，特别是那些拿来demo修改一下就用的人好碰到这种情况。检查代码都没有问题。这种情况原因很多，有一个可能性很大，就是在继承UnityPlayerActivity的那个Activity里用了finish函数，把这句删掉就行了，因为继承了UnityPlayerActivity就是Unity程序了，设置时还让它和Unity一起启动的，finish它，就是把你的游戏程序finish了。