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我有非常簡單的要求。Android NDK - 如何強調對象類
的Java:
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
我想實現NDK/C相同++。
jmethodID openConnMethod = env->GetMethodID(URLclass,"openConnection","()Ljava/net/URLConnection;");
jobject urlconn = env->CallObjectMethod(URLObject, openConnMethod);
如何將此URLConnection對象轉換爲HttpURLConnection對象?