/**
* Turns the backlight off
*
* @see #lightOn()
*/
public static void lightOff() {
// #if polish.HasOptionalApis
if (!controllerInitializationDone) {
initController();
}
if (controller != null) {
controller.lightOn();
}
// #elif polish.android
MidletBridge.instance.backlightRelease();
// #else
synchronized (lightsLock) {
// #if tmp.useNokiaUi
com.nokia.mid.ui.DeviceControl.setLights(0, 0);
// #elif tmp.useBlackBerry
net.rim.device.api.system.Backlight.enable(false);
// #elif tmp.useThread
DeviceControl dc = thread;
if (dc != null) {
dc.switchLightOff();
thread = null;
}
// #endif
}
// #endif
}
/**
* Turns the backlight on on a device until lightOff() is called
*
* @return true when backlight is supported on this device.
* @see #lightOff()
*/
public static boolean lightOn() {
// #if polish.HasOptionalApis
if (!controllerInitializationDone) {
initController();
}
if (controller != null) {
return controller.lightOn();
} else {
// # return false;
}
// #elif polish.android
MidletBridge.instance.backlightOn();
// # return true;
// #else
synchronized (lightsLock) {
boolean success = false;
// #if tmp.useNokiaUi
com.nokia.mid.ui.DeviceControl.setLights(0, 100);
success = true;
// #elif tmp.useBlackBerry
net.rim.device.api.system.Backlight.enable(true);
success = true;
// #elif tmp.useThread
if (thread == null) {
if (isLightSupported()) {
DeviceControl dc = new DeviceControl();
dc.start();
success = true;
}
}
// #endif
return success;
}
// #endif
}
/**
* Checks if backlight can be controlled by the application
*
* @return true when the backlight can be controlled by the application
* @see #lightOn()
* @see #lightOff()
*/
public static boolean isLightSupported() {
boolean isSupported = false;
// #if polish.hasOptionalApis
if (!controllerInitializationDone) {
initController();
}
if (controller != null) {
isSupported = controller.isLightSupported();
}
// #elif polish.android
isSupported = true;
// #elif polish.api.nokia-ui && !polish.Bugs.NoBacklight
isSupported = true;
// #elif tmp.useBlackBerry
isSupported = true;
// #elif polish.api.samsung
isSupported = com.samsung.util.LCDLight.isSupported();
// //#elif polish.midp2 && polish.usePolishGui
// isSupported = StyleSheet.display.flashBacklight(0);
// #endif
return isSupported;
}
