Motorola C450 ユーザーズマニュアル
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Vibe and Backlight
Vibe and Backlight API
The Vibe and Backlight API allows J2ME applications access to vibrator, backlight, and
keypad control. This access gives a MIDlet the ability to turn on/off these features based
on the application’s needs. The MIDlet will use the Vibe and Backlight API to enhance the
on the application’s needs. The MIDlet will use the Vibe and Backlight API to enhance the
activity being performed by the application. Examples of these enhancements are the
following:
following:
•
When in a driving game application, the vibrator is turned on during a crash
scenario.
•
An alarm clock application will have access to turn the vibrator on and off.
•
A stock ticker application turns the backlight on/off when a specified stock hits a
target price.
In future releases of the Vibe and Backlight API, keypad and backlight control must
function separately. Currently, these functions are dependant on the hardware
function separately. Currently, these functions are dependant on the hardware
implementation and which additional drivers are needed to control the keypad and lights
separately from the display’s backlight.
Native constraints must be in place to protect the battery life of the product. A time-out
feature will be created to limit the duration of the vibrator and backlight features. This
time-out will protect against a corrupt MIDlet or unattended MIDlet. These native
separately from the display’s backlight.
Native constraints must be in place to protect the battery life of the product. A time-out
feature will be created to limit the duration of the vibrator and backlight features. This
time-out will protect against a corrupt MIDlet or unattended MIDlet. These native
constraints will be flexible to the operator.