managers
Class GeneralManager

java.lang.Object
  managers.GeneralManager

public class GeneralManager
extends Object

Delivers general MIDlet functionality.

Method Summary

Screen	getCurrent() Returns the MIDlet's current Screen object.
Integer	getHeight() Gets height of the displayable area in pixels.
String	getPlatformName() Returns System.getProperty("microedition.platform").
Integer	getRandomNumber() Generates the pseudorandom number.
Long	getTimestamp() Returns the current time in milliseconds.
Integer	getWidth() Gets width of the displayable area in pixels.
Boolean	isColor() Gets information about color support of the device.
Boolean	isMemoryAvailable(Number sizeRequired) Checks wheather the specified amount of memory is available.
Boolean	isStorageSpaceAvailable(Number sizeRequired) Checks wheather the specified amount of storage space is available.
Integer	numColors() Gets the number of colors (if isColor() is true) or graylevels (if isColor() is false) that can be represented on the device.
void	quit() Quits the MIDlet.
void	restart() Restarts the MIDlet.
void	setCurrent(Alert alert, Screen screen) Requests that this Alert be made current, and that Screen be made current after the Alert is dismissed.
void	setCurrent(Screen screen) Requests that a different Screen object be made visible on the display.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getCurrent

public Screen getCurrent()

Returns the MIDlet's current Screen object.

Returns:

the MIDlet's current Screen object.

See Also:

MIDP1 Display

Usage examples:

   <blue:call manager="GeneralManager" method="getCurrent"
              toVariable="form"
              castTo="com/emarson/lemonade/bluelemon/midp1/Form"/>
 

getHeight

public Integer getHeight()

Gets height of the displayable area in pixels.

Returns:

width of the displayable area

Usage examples:

   <blue:call manager="GeneralManager" 
              method="getHeight" toVariable="height"/>
 

getPlatformName

public String getPlatformName()

Returns System.getProperty("microedition.platform").

Returns:

System.getProperty("microedition.platform")

Usage examples:

   <blue:call manager="GeneralManager" method="getPlatformName"
              toVariable="platformName">
 

getRandomNumber

public Integer getRandomNumber()

Generates the pseudorandom number.

Returns:

See Also:

Random

Usage examples:

   <blue:call manager="GeneralManager" method="getRandomNumber"
              toVariable="number"/>
 

getTimestamp

public Long getTimestamp()

Returns the current time in milliseconds.

Returns:

the current time in milliseconds

Usage examples:

   <blue:call manager="GeneralManager" 
              method="getTimestamp" toVariable="timestamp"/>
 

getWidth

public Integer getWidth()

Gets width of the displayable area in pixels.

Returns:

width of the displayable area

Usage examples:

   <blue:call manager="GeneralManager" 
              method="getWidth" toVariable="width"/>
 

isColor

public Boolean isColor()

Gets information about color support of the device.

Returns:

true if the display supports color, false otherwise.

Usage examples:

   <blue:call manager="GeneralManager" 
              method="isColor" toVariable="isColor"/>
 

isMemoryAvailable

public Boolean isMemoryAvailable(Number sizeRequired)

Checks wheather the specified amount of memory is available.

Parameters:

sizeRequired - the memory size (in bytes) that needs to be allocated

Returns:

true if that amount of memory is available, false otherwise.

Usage examples:

   <blue:call manager="GeneralManager" 
              method="isMemoryAvailable"
              toVariable="are2kBsAvailable">
     <blue:argument type="int" name="2048"/>
   </blue:call>
 

isStorageSpaceAvailable

public Boolean isStorageSpaceAvailable(Number sizeRequired)

Checks wheather the specified amount of storage space is available.

Parameters:

sizeRequired - the storage space size (in bytes) that needs to be allocated

Returns:

true if that amount of storage space is available, false otherwise.

Usage examples:

   <blue:call manager="GeneralManager" 
              method="isStorageSpaceAvailable"
              toVariable="are2kBsAvailable">
     <blue:argument type="int" name="2048"/>
   </blue:call>
 

numColors

public Integer numColors()

Gets the number of colors (if isColor() is true) or graylevels (if isColor() is false) that can be represented on the device.

Returns:

number of colors.

Usage examples:

   <blue:call manager="GeneralManager" 
              method="numColors" toVariable="numColors"/>
 

quit

public void quit()

Quits the MIDlet.

Parameters:

alert - the alert to be shown

screen - the Screen requested to be made current

See Also:

MIDP1 Display

Usage examples:

   <blue:call manager="GeneralManager" method="quit"/>
 

restart

public void restart()

Restarts the MIDlet.

Usage examples:

   <blue:call manager="GeneralManager" method="restart"/>
 

setCurrent

public void setCurrent(Alert alert,
                       Screen screen)

Requests that this Alert be made current, and that Screen be made current after the Alert is dismissed.

Parameters:

alert - the alert to be shown

screen - the Screen requested to be made current

See Also:

MIDP1 Display

Usage examples:

   <blue:call manager="GeneralManager" method="setCurrent">
     <blue:argument type="variable" name="alert"/>
     <blue:argument type="variable" name="form"/>
   </blue:call>
 

setCurrent

public void setCurrent(Screen screen)

Requests that a different Screen object be made visible on the display.

Parameters:

screen - the Screen requested to be made current

See Also:

MIDP1 Display

Usage examples:

   <blue:call manager="GeneralManager" method="setCurrent">
     <blue:argument type="variable" name="form"/>
   </blue:call>