与NDK的Android应用程序整合乱舞 [英] android Flurry integration with NDK app
问题描述
我的Android应用程序由两部分组成：前端用Java编写的游戏用C ++编写使用NativeActivity的NDK的东西。我已经整合到乱舞我的应用程序有问题。乱舞工作正常，从Java中的一部分，但在C ++中崩溃。
更具体地说，通话
My Android application comprises two parts: frontend written in Java and game written in C++ using NativeActivity NDK stuff. I have a problem integrating Flurry into my application. Flurry works fine from within Java part, but crashes from within C++. More specifically, call
jni_env->FindClass("com/flurry/android/FlurryAgent");
结果的ClassNotFoundException 。
jni_env 变量不破，因为我能得到一些意图 PARAMS使用它。
jni_env variable is not broken because I am able to get some Intent params using it.
FlurryAgent.jar被添加到库 DIR和成的.classpath 。我甚至已经检查排序和导出复选框FlurryAgent.jar（虽然我不知道这是什么意思）。没有什么帮助。
FlurryAgent.jar is added to libs dir and into .classpath. I've even checked 'Order and Export' checkbox for FlurryAgent.jar (though I have no idea what does it mean). Nothing helps.
一个细节：我的应用程序分为图书馆和App部分。我已经加入到FlurryAgent.jar两部分，并在两部分检查订单和出口，但它仍然没有帮助。清洁和放大器;重建并没有帮助。我错过了什么？
One more detail: my application is divided into Library and App parts. I have added FlurryAgent.jar to both parts and checked 'Order and Export' in both parts, but it still does not help. Clean & rebuild does does not help either. Did I miss something?
推荐答案
答案就在这里： http://archive.is / QzA8
在换句话说， NativeActivity的找不到第三方类，而不是
In other words, NativeActivity cannot find a third-party class and instead of
jni_env->FindClass("com/flurry/android/FlurryAgent");
应该使用
jobject nativeActivity = state->activity->clazz;
jclass acl = jni_env->GetObjectClass(nativeActivity);
jmethodID getClassLoader = jni_env->GetMethodID(acl, "getClassLoader", "()Ljava/lang/ClassLoader;");
jobject cls = jni_env->CallObjectMethod(nativeActivity, getClassLoader);
jclass classLoader = jni_env->FindClass("java/lang/ClassLoader");
jmethodID findClass = jni_env->GetMethodID(classLoader, "loadClass", "(Ljava/lang/String;)Ljava/lang/Class;");
jstring strClassName = jni_env->NewStringUTF("com/flurry/android/FlurryAgent");
jclass flurryClass = (jclass)(jni_env->CallObjectMethod(cls, findClass, strClassName));
jni_env->DeleteLocalRef(strClassName);
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