public class ProgressMonitor extends Object implements Accessible
From time to time, when the Dialog box is visible, the progress bar will be updated when setProgress is called. setProgress won't always update the progress bar, it will only be done if the amount of progress is visibly significant.
For further documentation and examples see How to Monitor Progress, a section in The Java Tutorial.
ProgressMonitorInputStream
Modifier and Type | Class and Description |
---|---|
protected class |
ProgressMonitor.AccessibleProgressMonitor
AccessibleProgressMonitor implements accessibility
support for the ProgressMonitor class. |
Modifier and Type | Field and Description |
---|---|
protected AccessibleContext |
accessibleContext
The
AccessibleContext for the ProgressMonitor |
Constructor and Description |
---|
ProgressMonitor(Component parentComponent,
Object message,
String note,
int min,
int max)
Constructs a graphic object that shows progress, typically by filling
in a rectangular bar as the process nears completion.
|
Modifier and Type | Method and Description |
---|---|
void |
close()
Indicate that the operation is complete.
|
AccessibleContext |
getAccessibleContext()
Gets the
AccessibleContext for the
ProgressMonitor |
int |
getMaximum()
Returns the maximum value -- the higher end of the progress value.
|
int |
getMillisToDecideToPopup()
Returns the amount of time this object waits before deciding whether
or not to popup a progress monitor.
|
int |
getMillisToPopup()
Returns the amount of time it will take for the popup to appear.
|
int |
getMinimum()
Returns the minimum value -- the lower end of the progress value.
|
String |
getNote()
Specifies the additional note that is displayed along with the
progress message.
|
boolean |
isCanceled()
Returns true if the user hits the Cancel button in the progress dialog.
|
void |
setMaximum(int m)
Specifies the maximum value.
|
void |
setMillisToDecideToPopup(int millisToDecideToPopup)
Specifies the amount of time to wait before deciding whether or
not to popup a progress monitor.
|
void |
setMillisToPopup(int millisToPopup)
Specifies the amount of time it will take for the popup to appear.
|
void |
setMinimum(int m)
Specifies the minimum value.
|
void |
setNote(String note)
Specifies the additional note that is displayed along with the
progress message.
|
void |
setProgress(int nv)
Indicate the progress of the operation being monitored.
|
protected AccessibleContext accessibleContext
AccessibleContext
for the ProgressMonitor
public ProgressMonitor(Component parentComponent, Object message, String note, int min, int max)
parentComponent
- the parent component for the dialog boxmessage
- a descriptive message that will be shown
to the user to indicate what operation is being monitored.
This does not change as the operation progresses.
See the message parameters to methods in
JOptionPane.message
for the range of values.note
- a short note describing the state of the
operation. As the operation progresses, you can call
setNote to change the note displayed. This is used,
for example, in operations that iterate through a
list of files to show the name of the file being processes.
If note is initially null, there will be no note line
in the dialog box and setNote will be ineffectivemin
- the lower bound of the rangemax
- the upper bound of the rangeJDialog
,
JOptionPane
public void setProgress(int nv)
nv
- an int specifying the current value, between the
maximum and minimum specified for this componentsetMinimum(int)
,
setMaximum(int)
,
close()
public void close()
public int getMinimum()
setMinimum(int)
public void setMinimum(int m)
m
- an int specifying the minimum valuegetMinimum()
public int getMaximum()
setMaximum(int)
public void setMaximum(int m)
m
- an int specifying the maximum valuegetMaximum()
public boolean isCanceled()
public void setMillisToDecideToPopup(int millisToDecideToPopup)
millisToDecideToPopup
- an int specifying the time to wait,
in millisecondsgetMillisToDecideToPopup()
public int getMillisToDecideToPopup()
setMillisToDecideToPopup(int)
public void setMillisToPopup(int millisToPopup)
millisToPopup
- an int specifying the time in millisecondsgetMillisToPopup()
public int getMillisToPopup()
setMillisToPopup(int)
public void setNote(String note)
note
- a String specifying the note to displaygetNote()
public String getNote()
setNote(java.lang.String)
public AccessibleContext getAccessibleContext()
AccessibleContext
for the
ProgressMonitor
getAccessibleContext
in interface Accessible
AccessibleContext
for the
ProgressMonitor
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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