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java.lang.Object
|
+--javax.microedition.lcdui.Displayable
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+--javax.microedition.lcdui.Screen
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+--javax.microedition.lcdui.List
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+--net.rim.device.api.lcdui.BlackBerryList
The BlackBerryList class extends the functionality of the List class.
The BlackBerryList class implements Controllable and can be queried
to retrieve BlackBerry-specific Controls. For instance, on devices which support a virtual keyboard,
getControl(String) may return a VirtualKeyboardControl
object.
| Field Summary |
| Fields inherited from class javax.microedition.lcdui.List |
SELECT_COMMAND |
| Fields inherited from interface javax.microedition.lcdui.Choice |
EXCLUSIVE, IMPLICIT, MULTIPLE, POPUP, TEXT_WRAP_DEFAULT, TEXT_WRAP_OFF, TEXT_WRAP_ON |
| Constructor Summary | ||
BlackBerryList(String title,
int listType)
Creates a new instance of a BlackBerryList. |
||
BlackBerryList(String title,
int listType,
String[] stringElements,
Image[] imageElements)
Creates a new instance of a BlackBerryList |
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| Method Summary | ||
Control |
getControl(String controlType)
Obtain the object that implements the specified Control interface. |
|
Control[] |
getControls()
Obtain the collection of Controls
from the object that implements this interface. |
|
| Methods inherited from class javax.microedition.lcdui.List |
append, delete, deleteAll, getFitPolicy, getFont, getImage, getSelectedFlags, getSelectedIndex, getString, insert, isSelected, removeCommand, set, setFitPolicy, setFont, setSelectCommand, setSelectedFlags, setSelectedIndex, size |
| Methods inherited from class javax.microedition.lcdui.Displayable |
addCommand, getHeight, getTicker, getTitle, getWidth, isShown, setCommandListener, setTicker, setTitle, sizeChanged |
| Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public BlackBerryList(String title, int listType)
IllegalArgumentException - if listType is not one of IMPLICIT,
EXCLUSIVE, or MULTIPLE.javax.microedition.lcdui.List(String, int)public BlackBerryList(String title, int listType, String[] stringElements, Image[] imageElements)
NullPointerException - if stringElements is nullNullPointerException - if the stringElements array contains
any null elementsIllegalArgumentException - if the imageElements array is non-null
and has a different length from the stringElements arrayIllegalArgumentException - if listType is not one of IMPLICIT,
EXCLUSIVE, or MULTIPLE.IllegalArgumentException - if any image in the imageElements
array is mutablejavax.microedition.lcdui.List(String, int, String[], Image[])| Method Detail |
public Control getControl(String controlType)
ControllableControl interface.
If the specified Control interface is not supported
then null is returned.
If the Controllable supports multiple objects that
implement the same specified Control interface, only
one of them will be returned. To obtain all the
Control's of that type, use the getControls
method and check the list for the requested type.
IllegalArgumentException - Thrown if controlType
is null.javax.microedition.media.Controllable.getControl(String)public Control[] getControls()
ControllableControls
from the object that implements this interface.
Since a single object can implement multiple
Control interfaces, it's necessary
to check each object against different Control
types. For example:
Controllable controllable;
:
Control cs[];
cs = controllable.getControls();
for (int i = 0; i < cs.length; i++) {
if (cs[i] instanceof ControlTypeA)
doSomethingA();
if (cs[i] instanceof ControlTypeB)
doSomethingB();
// etc.
}
The list of Control objects returned
will not contain any duplicates. And the list will not
change over time.
If no Control is supported, a zero length
array is returned.
javax.microedition.media.Controllable.getControls()
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