How to create QCoreApplication instance in a Qt library with JNI methods for Android java native app?

Rel1ve

I need develop a Qt library with JNI methods which called by Android java native app. In these JNI methods I need use QBluetooth module to communicate with other bluetooth devices.
Now I create a shared library project, and then I declare class T inherit from class QThread. In run(), I create a QCoreApplication instance and call exec().
My codes as below.

void run() override {
        int argc = 1;
        char *argv[1];
        argv[0] = "name";
        QCoreApplication app(argc, argv);

        app.exec();
    }

In JNI method:

T *t = NULL;

JNIEXPORT jboolean JNICALL Jni_init
  (JNIEnv *env, jobject jobj) {
    t = new T();
    t->start();
    return true;
}

In .pro file, if like "QT += core", it works fine with a warning: "QApplication was not
created in main() thread". But if like "QT += core bluetooth", it crashed with an error "libc: Fatal signal 11 (SIGSEGV), code 1, fault addr 0x0 in tid 24403 (QThread)".

I'm beginner with Qt, what should I do? Please help me.

Rel1ve

I solved this problem, after I read this post.(https://microscopictopic.wordpress.com/2015/01/15/using-qt-instead-of-the-android-ndk/). And I found the similar solution which wrote in Chinese.(http://blog.csdn.net/promotergmy/article/details/70941649)