return _instance;
}
public int getDeviceResolution() {
if (deviceResolution == -1) {
Display d = Display.getInstance();
long actual = d.getDisplayHeight() * d.getDisplayWidth();
if (actual <= LIMIT_VERY_LOW) {
deviceResolution = VERY_LOW;
} else if (actual <= LIMIT_LOW) {
deviceResolution = LOW;
} else if (actual <= LIMIT_MEDIUM) {