Android Cocos2d-x 3.7: how to get Application Context in cocos2d-x? -

i use android code cocos2dx call encountered problem. not call in android cocos2dx context, i'm not sure whether there problem following code, , following way need call in android , errors such calls occur .

void admasterconvsdk::admasterinitial(std::string appid) {      jnimethodinfo methodinfo;     if (jnihelper::getstaticmethodinfo(methodinfo, "com/admaster/square/api/convmobisdk", "initial",                                        "(landroid/content/context;ljava/lang/string;)v")) {         jstring appid = methodinfo.env->newstringutf(appid.c_str());          jclass cl = methodinfo.env->findclass("org/cocos2dx/lib/cocos2dxactivity");         jmethodid methodcontext = methodinfo.env->getstaticmethodid(cl,"getcontext","()landroid/content/context");         jobject context = methodinfo.env->callstaticobjectmethod(cl,methodcontext);         methodinfo.env->callstaticvoidmethod(methodinfo.classid,methodinfo.methodid,context,appid);      } else {         log("error");     }  } 

android code:

public  static void initial(context context, string m2id) {     convmobiinstance adjustinstance = convmobisdk.getdefaultinstance();     adjustinstance.initial(context, m2id); } 

error:

08-31 17:03:07.083: a/libc(22452): fatal signal 11 (sigsegv) @ 0x0000001c (code=1), thread 22470 (thread-38567)

has been studied long time , hope have appeared answer question , in advance .

you c++ code run in glthread bug java code need run in uithread ,so if call java method c++,you need make java code run in ui thread, change java code:

public  static void initial(final context context, final string m2id) {     ((activity)context).runonuithread(new thread(){         @override         public void run() {             // todo auto-generated method stub             super.run();             convmobiinstance adjustinstance = convmobisdk.getdefaultinstance();             adjustinstance.initial(context, m2id);         }     }); }