在Android上运行cpp-tests

官网http://www.cocos.com/download/#下载并解压cocos2d-x-3.8

在Android上运行cocos2dx 3.8的官方例子cpp-tests，出现一堆BUG，找了半天终于解决，记录下来。

1.错误：Unable to resolve target ‘android-9’

解决办法：检查你项目支持API是多少：项目->Properties->Android->Project Build Target的API Level。
比如你的API Level是15
a.修改项目下的project.properties文件：target=android-15
b.修改项目下的AndroidManifest.xml文件：

c.手动把 cocos2d-x-3.8\cocos\platform\android\java\src\org\cocos2dx 下的整个lib文件夹copy到
cocos2d-x-3.8\tests\cpp-tests\proj.android\src\org\cocos2dx下，问题解决。

2.报错：

Description Resource Path Location TypeCocosPlayClient cannot be resolved Cocos2dxWebViewHelper.java /cocosAndroidTest/src/org/cocos2dx/lib line 163 Java ProblemCocosPlayClient cannot be resolved Cocos2dxHelper.java /cocosAndroidTest/src/org/cocos2dx/lib line 89 Java ProblemCocosPlayClient cannot be resolved Cocos2dxHelper.java /cocosAndroidTest/src/org/cocos2dx/lib line 88 Java ProblemCocosPlayClient cannot be resolved Cocos2dxHelper.java /cocosAndroidTest/src/org/cocos2dx/lib line 88 Java ProblemThe import com.chukong cannot be resolved Cocos2dxHelper.java /cocosAndroidTest/src/org/cocos2dx/lib line 33 Java ProblemThe import com.chukong cannot be resolved Cocos2dxVideoView.java /cocosAndroidTest/src/org/cocos2dx/lib line 40 Java ProblemCocosPlayClient cannot be resolved Cocos2dxVideoView.java /cocosAndroidTest/src/org/cocos2dx/lib line 220 Java ProblemCocosPlayClient cannot be resolved Cocos2dxVideoView.java /cocosAndroidTest/src/org/cocos2dx/lib line 220 Java ProblemCocosPlayClient cannot be resolved Cocos2dxVideoView.java /cocosAndroidTest/src/org/cocos2dx/lib line 223 Java ProblemCocosPlayClient cannot be resolved Cocos2dxVideoView.java /cocosAndroidTest/src/org/cocos2dx/lib line 221 Java ProblemCocosPlayClient cannot be resolved Cocos2dxSound.java /cocosAndroidTest/src/org/cocos2dx/lib line 117 Java ProblemCocosPlayClient cannot be resolved Cocos2dxSound.java /cocosAndroidTest/src/org/cocos2dx/lib line 118 Java ProblemThe import com.chukong cannot be resolved Cocos2dxSound.java /cocosAndroidTest/src/org/cocos2dx/lib line 34 Java ProblemCocosPlayClient cannot be resolved Cocos2dxSound.java /cocosAndroidTest/src/org/cocos2dx/lib line 117 Java ProblemCocosPlayClient cannot be resolved Cocos2dxMusic.java /cocosAndroidTest/src/org/cocos2dx/lib line 250 Java ProblemCocosPlayClient cannot be resolved Cocos2dxMusic.java /cocosAndroidTest/src/org/cocos2dx/lib line 250 Java ProblemThe import com.chukong cannot be resolved Cocos2dxActivity.java /cocosAndroidTest/src/org/cocos2dx/lib line 31 Java ProblemThe import com.chukong cannot be resolved Cocos2dxMusic.java /cocosAndroidTest/src/org/cocos2dx/lib line 30 Java ProblemCocosPlayClient cannot be resolved Cocos2dxMusic.java /cocosAndroidTest/src/org/cocos2dx/lib line 253 Java ProblemCocosPlayClient cannot be resolved Cocos2dxMusic.java /cocosAndroidTest/src/org/cocos2dx/lib line 251 Java Problemmake.exe: *** [obj/local/armeabi/objs/cocos2dcpp_shared/__/__/Classes/AppDelegate.o] Error 1 cocosAndroidTest    C/C++ Problemmake.exe: *** Waiting for unfinished jobs.... cocosAndroidTest    C/C++ ProblemCocosPlayClient cannot be resolved Cocos2dxActivity.java /cocosAndroidTest/src/org/cocos2dx/lib line 220 Java ProblemCocosPlayClient cannot be resolved Cocos2dxWebViewHelper.java /cocosAndroidTest/src/org/cocos2dx/lib line 161 Java ProblemCocosPlayClient cannot be resolved Cocos2dxWebViewHelper.java /cocosAndroidTest/src/org/cocos2dx/lib line 160 Java ProblemCocosPlayClient cannot be resolved Cocos2dxSound.java /cocosAndroidTest/src/org/cocos2dx/lib line 120 Java ProblemCocosPlayClient cannot be resolved Cocos2dxWebViewHelper.java /cocosAndroidTest/src/org/cocos2dx/lib line 160 Java ProblemThe import com.chukong cannot be resolved Cocos2dxWebViewHelper.java /cocosAndroidTest/src/org/cocos2dx/lib line 13 Java Problem

解决办法：
根据http://www.cocoachina.com/bbs/read.php?tid-288450-page-2.html上说：你如果是自己拷贝的libcocos2dx，记得CocosPlayClient也要拷贝进去
老的教程没提是因为老的教程CocosPlayClient还没出来，这是新增的。

好吧，教程跟不上。。。我们再一次手动把 cocos2d-x-3.8\cocos\platform\android\java\src 下的整个com文件夹拷贝到cocos2d-x-3.8\tests\cpp-tests\proj.android\src下，问题解决。

3.报错：java.lang.UnsatisfiedLinkError: Couldn’t load cpp_tests: findLibrary returned null

09-18 02:27:34.871: E/AndroidRuntime(604): FATAL EXCEPTION: main09-18 02:27:34.871: E/AndroidRuntime(604): java.lang.UnsatisfiedLinkError: Couldn't load cpp_tests: findLibrary returned null09-18 02:27:34.871: E/AndroidRuntime(604):  at java.lang.Runtime.loadLibrary(Runtime.java:365)09-18 02:27:34.871: E/AndroidRuntime(604):  at java.lang.System.loadLibrary(System.java:535)09-18 02:27:34.871: E/AndroidRuntime(604):  at org.cocos2dx.lib.Cocos2dxActivity.onLoadNativeLibraries(Cocos2dxActivity.java:288)09-18 02:27:34.871: E/AndroidRuntime(604):  at org.cocos2dx.lib.Cocos2dxActivity.onCreate(Cocos2dxActivity.java:303)09-18 02:27:34.871: E/AndroidRuntime(604):  at android.app.Activity.performCreate(Activity.java:4465)09-18 02:27:34.871: E/AndroidRuntime(604):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)09-18 02:27:34.871: E/AndroidRuntime(604):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)09-18 02:27:34.871: E/AndroidRuntime(604):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)09-18 02:27:34.871: E/AndroidRuntime(604):  at android.app.ActivityThread.access$600(ActivityThread.java:123)09-18 02:27:34.871: E/AndroidRuntime(604):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)09-18 02:27:34.871: E/AndroidRuntime(604):  at android.os.Handler.dispatchMessage(Handler.java:99)09-18 02:27:34.871: E/AndroidRuntime(604):  at android.os.Looper.loop(Looper.java:137)09-18 02:27:34.871: E/AndroidRuntime(604):  at android.app.ActivityThread.main(ActivityThread.java:4424)09-18 02:27:34.871: E/AndroidRuntime(604):  at java.lang.reflect.Method.invokeNative(Native Method)09-18 02:27:34.871: E/AndroidRuntime(604):  at java.lang.reflect.Method.invoke(Method.java:511)09-18 02:27:34.871: E/AndroidRuntime(604):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)09-18 02:27:34.871: E/AndroidRuntime(604):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)09-18 02:27:34.871: E/AndroidRuntime(604):  at dalvik.system.NativeStart.main(Native Method)

解决办法：
原因是项目没有生成libcpp_tests.so,,根据http://www.cocos.com/doc/article/index?type=wiki&url=/doc/cocos-docs-master/manual/framework/native/wiki/how-to-run-cpp-tests-on-android/zh.md提示，在解压出来的cocos2d-x-3.8/build路径下执行命令行：python android-build.py -p 15 cpp-tests

项目正确生成 libs->armeabi->libcpp_tests.so,问题解决

终于可以正确运行在真机上了。折腾一天后，cocos2dx的文档就是这么棒！！好想感谢触控儿的家人……