Function to create Toast only if there is no Toast currently displayed . Avoids repeated toast creation.

Android Toast Creation Helper Function

/**
* Function to create Toast only if there is no Toast currently displayed
* Avoids repeated toast creation
*
* Sample usage/calling:
* showToast("lorem ipsum", Toast.LENGTH_SHORT);
*
* If needed call toast.cancel() in methods such as onPause() etc
* to cancel toast
**/

private Toast toast = null;
 public void showToast(String msg, int duration){
        if(toast != null){
            if(toast.getView().isShown()){
                toast.setText(msg);
            }
            else{
                toast = Toast.makeText(this, msg, duration);
                toast.show();
            }
        }
        else{
            toast = Toast.makeText(this, msg, duration);
            toast.show();
        }
    }