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我有非常简单的要求。Android NDK - 如何强调对象类
的Java:
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
我想实现NDK/C相同++。
jmethodID openConnMethod = env->GetMethodID(URLclass,"openConnection","()Ljava/net/URLConnection;");
jobject urlconn = env->CallObjectMethod(URLObject, openConnMethod);
如何将此URLConnection对象转换为HttpURLConnection对象?