javax.microedition.lcdui
Class AlertType
java.lang.Object
|
+--javax.microedition.lcdui.AlertType
- public class AlertType
- extends Object
The AlertType provides an indication of the nature of an Alert
.
Alerts are used by an application to present information to the user and wait
before proceeding. An AlertType may also be used to directly signal the user
without changing the display. The playSound
method can be used to spontaneously generate a sound to alert the user. For
example, a game using a Canvas
can use
playSound
to indicate success or progress. The predefined types are
INFO
, WARNING
, ERROR
,
ALARM
, and CONFIRMATION
.
- Version:
- MIDP 0.95 Public Draft
- See Also:
Alert
Constructor Summary |
protected |
AlertType()
Protected constructor for subclasses |
Method Summary |
boolean |
playSound(Display display)
Alert the user by playing the sound for this AlertType. |
ALARM
public static final AlertType ALARM
- Alert for alarm.
CONFIRMATION
public static final AlertType CONFIRMATION
- Alert for confirmation.
ERROR
public static final AlertType ERROR
- Alert for error.
INFO
public static final AlertType INFO
- Alert for information.
WARNING
public static final AlertType WARNING
- Alert for warning.
AlertType
protected AlertType()
- Protected constructor for subclasses
playSound
public boolean playSound(Display display)
- Alert the user by playing the sound for this AlertType. The AlertType
instance is used as a hint by the device to generate an appropriate
sound. Instances other than those predefined above may be ignored. The
actual sound made by the device, if any, is determined by the device.
The device may ignore the request, use the same sound for several
AlertTypes or use any other means suitable to alert the user.
- Parameters:
display
- to which the AlertType's sound should be played- Returns:
- true if the user was alerted, false otherwise