Java Qt-使用JNI的弹出式通知

我正在尝试在收到新消息时创建弹出通知
首先，我想用Java创建一个简单的对话框并对其进行测试

Text.java:

public static void popUpDialog()
{
    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
            context);

      // set title
      alertDialogBuilder.setTitle("Your Title");
      // create alert dialog
      AlertDialog alertDialog = alertDialogBuilder.create();

      // show it
       alertDialog.show();

}

            mid = m_env->GetStaticMethodID(g_clazz, "popUpDialog", "()V");

            if (messageType == TextMessage)
                m_env->CallStaticVoidMethod(g_clazz, mid, jsReceivedMessage);
            else
            {
                jstring jsPreparedMessage = m_env->NewStringUTF(messageTypeStr(messageType).c_str());

                m_env->CallStaticVoidMethod(g_clazz, mid, jsPreparedMessage);
                m_env->DeleteLocalRef(jsPreparedMessage);
            }

并在消息通过JNI到达时显示它

Text.cpp:

public static void popUpDialog()
{
    AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
            context);

      // set title
      alertDialogBuilder.setTitle("Your Title");
      // create alert dialog
      AlertDialog alertDialog = alertDialogBuilder.create();

      // show it
       alertDialog.show();

}

            mid = m_env->GetStaticMethodID(g_clazz, "popUpDialog", "()V");

            if (messageType == TextMessage)
                m_env->CallStaticVoidMethod(g_clazz, mid, jsReceivedMessage);
            else
            {
                jstring jsPreparedMessage = m_env->NewStringUTF(messageTypeStr(messageType).c_str());

                m_env->CallStaticVoidMethod(g_clazz, mid, jsPreparedMessage);
                m_env->DeleteLocalRef(jsPreparedMessage);
            }

---

实际上，我的应用程序在收到消息时崩溃了。如何使用它？

“事实上，我的应用程序在收到消息时崩溃了。”然后你应该在问题中包含堆栈跟踪。一件看起来很奇怪的事情是，你试图将字符串传递给

popUpDialog

，即使该方法不带任何参数。