WindowManager windowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams(WindowManager.LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.TYPE_u_wish, flag, PixelFormat.*);
windowManager.addView(view, layoutParams);

windowManager.removeView(view);

WindowManager windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);

LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);

TextView view = (View) inflater.inflate(R.layout.activity_main, null);
view.setText(your_clipboard_text);
view.setBackgroundColor(Color.WHITE);

WindowManager.LayoutParams params = new WindowManager.LayoutParams(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.TYPE_PHONE, WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE, PixelFormat.TRANSLUCENT);

windowManager.addView(view, params);