Btukfyl

This question is very similar to questions that have been asked in the past but please bear with me as it is still a unique question. Basically, I have a class that gets application permissions, and if the user does not have internet running, then when the auto login screen comes, it is stuck in loading. So what I want to do is show a dialog message, and the user will click ok to close the app. For dialogs, I need the context, and I must run on the main thread. I have posted an image of the code because I want to show you that runOnUIThread is red. Here is the error I get form Android Studio

Cannot resolve method runOnUIThread.

Here is what I had

Problem: For some reason, runOnUIThread is not usable. Does anyone have a counter proposal, or a reason as to why I am having this problem?

Here is the code:

public void alert() {



    new Thread()

    {

        public void run()

        {

            application.runOnUiThread(new Runnable()  // application is the context of my current activity.

            {

                public void run() //I display my alert Dialog here.

                {

                    AlertDialog build= new AlertDialog.Builder(application.getApplicationContext())

                            .setTitle("Error")

                            .setMessage("Sorry there seems to be a problem with the service. Please check to make sure you have a stable internet connection. ")

                            .setPositiveButton("Ok, I understand.", (dialog, which) -> System.exit(0))

                            .show();

                    build.setCancelable(false);

                    Button positive= build.getButton(DialogInterface.BUTTON_POSITIVE);

                    positive.setTextColor(application.getResources().getColor(R.color.buttonPrimaryColor));

                    positive.setTypeface(Typeface.defaultFromStyle(Typeface.BOLD));

                }

            });

        }

    }.start();

Here is how I have made it work with a Toast in the past.

public void shortToast(String msg) {

    Observable.just(msg)

            .observeOn(AndroidSchedulers.mainThread())

            .subscribe(message -> {

                Toast.makeText(application, message, Toast.LENGTH_SHORT).show();

            });

}



// In the main method 



shortToast("Sorry an error occured");

For some reason, runOnUIThread is not usable

The method that you are trying to invoke is runOnUiThread(). That is a method on Activity. Whatever application is, it is not an Activity.

Does anyone have a counter proposal

Move this code into an Activity. Generally, pop-ups (dialogs, snackbars, etc.) should be displayed by an Activity. And only an Activity can show a Dialog, such as an AlertDialog.

Try to use an activity to run on UI, not application