public void clickPlay() { System.out.println("click Play: You can`t play vedio(You should display on)"); vpm.setState(vpm.getDisplaySleepState()); }
public void clickDisplaySleep() { System.out.println("click DisplaySleep: Already Display Slepp/off"); vpm.setState(vpm.getDisplaySleepState()); }
public void clickDisplayOn() { System.out.println("click DisplayOn: Display On(You can play a vedio)"); vpm.setState(vpm.getDisplayOnState()); }
public void clickStop() { System.out.println("click Stop: Vedio is already stop(Because Display Sleep)"); vpm.setState(vpm.getDisplaySleepState()); }