How can Toasts be made to appear only if the app is in the foreground?

Question

I have a Toast that is called from inside a Service. It always appears regardless of the state of the app, as designed.

How can make it appear

Answer 1

Just place some flag

public class MyActivity {

    private boolean isInForeground;

    protected onResume() {
        isInForeground = true;
    }

    protected onPause() {
        isInForeground = false;
    }

    private displayToast() {
        if(isInForeground) {
           Toast.makeToast().show();
        }
    }

}