问题
I have created the Table component by overriding two methods -
createCell(Object value, final int row, final int column, boolean editable) method and createCellConstraint(Object value, int row, int column). Below is the whole code I used for Table.
String[][] tableData = {
{"Density", "Volume Flow", "T (in)","T (out)", "Specific Heat", "Density", "Volume Flow",
"T (in)","T (out)", "Specific Heat", "Duty", "UA"},
{"1","2", "3","4","5", "6", "7", "8", "9","10","11", "12", "13", "14"}
};
final CustomTableModel tableModel = new CustomTableModel (
new String[] {"Hot Side", "","","","","Cold Side","","","","","",""}, tableData,true);
final String[] r = {"1","2", "3","4","5", "6", "7", "8", "9","10","11", "12"};
dataTable = new Table(tableModel) {
@Override
protected Constraint createCellConstraint(Object value, int row, int column) {
Constraint con = super.createCellConstraint(value, row, column);
if(row == -1 && (column == 0 || column == 5) ) {
con.setHorizontalSpan(5);
}
return con;
}
@Override
protected Component createCell(Object value, final int row, final int column, boolean editable) {
if(row == -1) {
final Button headerButton = new Button((String)value);
headerButton.setUIID(getUIID() + "Header");
headerButton.getUnselectedStyle().setAlignment(Component.CENTER);
headerButton.getSelectedStyle().setAlignment(Component.CENTER);
headerButton.setFlatten(true);
return headerButton;
}
if(row == 0) {
final Button cell = new Button((String)value);
cell.setUIID(getUIID() + "Cell");
cell.getUnselectedStyle().setAlignment(Component.CENTER);
cell.getSelectedStyle().setAlignment(Component.CENTER);
cell.setFlatten(true);
cell.addActionListener(new ActionListener() {
final InteractionDialog dlg = new InteractionDialog("Hello");
@Override
public void actionPerformed(ActionEvent evt) {
cell.setEnabled(false);
dlg.setLayout(new BorderLayout());
dlg.addComponent(BorderLayout.CENTER, new Label(cell.getText()));
Button close = new Button("Close");
close.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
cell.setEnabled(true);
dlg.dispose();
}
});
dlg.addComponent(BorderLayout.SOUTH, close);
dlg.show(0, DISPLAY_HEIGHT/2, DISPLAY_WIDTH/2, 0);
}
});
return cell;
}
if(row >= 1) {
if(column == 2 || column == 3 || column == 6 || column == 7) {
final Button cell = new Button((String)value);
cell.setUIID(getUIID() + "Cell");
cell.getUnselectedStyle().setAlignment(Component.CENTER);
cell.getSelectedStyle().setAlignment(Component.CENTER);
cell.setFlatten(true);
cell.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent evt) {
Container body = new Container();
body.setLayout(new GridBagLayout());
Label value = new Label("Value");
value.getStyle().setBgTransparency(0);
TextField text = new TextField(TextArea.DECIMAL);
text.getStyle().setBgTransparency(0);
text.setText(cell.getText());
Label unit = new Label("Unit");
unit.getStyle().setBgTransparency(0);
ComboBox<String> uom = new ComboBox<String>();
List<String> uomList = DbServices.getAllConversionGroupVars(UnitConstants.TEMPERATURE);
for(String u : uomList) {
uom.addItem(u);
}
uom.getStyle().setBgTransparency(0);
uom.setCommandList(true);
body.addComponent(new GridBagConstraints(0, 0, 1, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5), 0, 0), value);
body.addComponent(new GridBagConstraints(1, 0, 1, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5), 0, 0), text);
body.addComponent(new GridBagConstraints(0, 1, 1, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5), 0, 0), unit);
body.addComponent(new GridBagConstraints(1, 1, 1, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5), 0, 0), uom);
Command cmd = Dialog.show("Add Values", body, new Command[] {new Command("OK"), new Command("Cancel")});
if(cmd.getCommandName().equals("OK")) {
String from_var = uom.getSelectedItem();
double val = Double.parseDouble(cell.getText());
String convertedValue = DbServices.getConversion(from_var, UnitConstants.KELVIN, val);
System.out.println(convertedValue+":"+ from_var);
tableModel.setValueAt(row, column, convertedValue);
}
if(cmd.getCommandName().equals("Cancel")) {
return;
}
int totalRow = tableModel.getRowCount();
if(!(totalRow > row +1)) {
tableModel.addRow(r, row);
}
}
});
return cell;
}
if(column == 0 || column == 1 || column == 4 || column == 5 || column > 8 ) {
final Button cell = new Button((String)value);
cell.setUIID(getUIID() + "Cell");
cell.getUnselectedStyle().setAlignment(Component.CENTER);
cell.getSelectedStyle().setAlignment(Component.CENTER);
cell.setFlatten(true);
cell.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent evt) {
Container body = new Container();
body.setLayout(new GridBagLayout());
Label value = new Label("Value");
value.getStyle().setBgTransparency(0);
TextField text = new TextField();
text.getStyle().setBgTransparency(0);
text.setText(cell.getText());
Label unit = new Label("Unit");
unit.getStyle().setBgTransparency(0);
ComboBox<String> uom = new ComboBox<String>();
List<String> uomList = DbServices.getAllConversionGroupVars(UnitConstants.TEMPERATURE);
for(String u : uomList) {
uom.addItem(u);
}
uom.getStyle().setBgTransparency(0);
body.addComponent(new GridBagConstraints(0, 0, 1, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5), 0, 0), value);
body.addComponent(new GridBagConstraints(1, 0, 1, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5), 0, 0), text);
body.addComponent(new GridBagConstraints(0, 1, 1, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5), 0, 0), unit);
body.addComponent(new GridBagConstraints(1, 1, 1, 1, 0, 0, GridBagConstraints.WEST, GridBagConstraints.NONE, new Insets(5, 5, 5, 5), 0, 0), uom);
Command cmd = Dialog.show("Add Values", body, new Command[] {new Command("OK"), new Command("Cancel")});
if(cmd.getCommandName().equals("OK")) {
tableModel.setValueAt(row, column, text.getText());
}
if(cmd.getCommandName().equals("Cancel")) {
return;
}
int totalRow = tableModel.getRowCount();
if(!(totalRow > row +1)) {
tableModel.addRow(r, row);
}
}
});
return cell;
}
}
Button cell = new Button("" + value);
cell.setUIID(getUIID() + "Cell");
cell.getUnselectedStyle().setAlignment(Component.CENTER);
cell.getSelectedStyle().setAlignment(Component.CENTER);
cell.setFlatten(true);
return cell;
}
};
When I'm trying to change cell value for row > 1 its giving below exception. This exception is coming because of createCellConstraint(Object value, int row, int column) method for sure. If I comment this method then only I'm able to change cell values otherwise giving below exception --
java.lang.ArrayIndexOutOfBoundsException: 36
at com.codename1.ui.table.TableLayout.getCellHorizontalSpan(TableLayout.java:697)
at com.codename1.ui.table.Table.paintGlass(Table.java:286)
at com.codename1.ui.Container.paintGlassImpl(Container.java:1004)
at com.codename1.ui.Component.paintGlassImpl(Component.java:1468)
at com.codename1.ui.Component.paintComponent(Component.java:1453)
at com.codename1.ui.Component.paintComponent(Component.java:1401)
at com.codename1.impl.CodenameOneImplementation.paintDirty(CodenameOneImplementation.java:475)
at com.codename1.impl.javase.JavaSEPort.paintDirty(JavaSEPort.java:1116)
at com.codename1.ui.Display.edtLoopImpl(Display.java:1056)
at com.codename1.ui.Display.mainEDTLoop(Display.java:983)
at com.codename1.ui.RunnableWrapper.run(RunnableWrapper.java:120)
at com.codename1.impl.CodenameOneThread.run(CodenameOneThread.java:176)
java.lang.ArrayIndexOutOfBoundsException: 36
at com.codename1.ui.table.TableLayout.getCellHorizontalSpan(TableLayout.java:697)
at com.codename1.ui.table.Table.paintGlass(Table.java:286)
at com.codename1.ui.Container.paint(Container.java:986)
at com.codename1.ui.Component.internalPaintImpl(Component.java:1255)
at com.codename1.ui.Component.paintInternalImpl(Component.java:1229)
at com.codename1.ui.Component.paintInternal(Component.java:1204)
at com.codename1.ui.Container.paint(Container.java:975)
at com.codename1.ui.Component.internalPaintImpl(Component.java:1255)
at com.codename1.ui.Component.paintInternalImpl(Component.java:1229)
at com.codename1.ui.Component.paintInternal(Component.java:1204)
at com.codename1.ui.Container.paint(Container.java:975)
at com.codename1.ui.Form.paint(Form.java:2808)
at com.codename1.ui.Component$BGPainter.paint(Component.java:4632)
at com.codename1.ui.Component.paintBackgroundImpl(Component.java:1616)
at com.codename1.ui.Component.paintComponentBackground(Component.java:1576)
at com.codename1.ui.Container.paintComponentBackground(Container.java:1785)
at com.codename1.ui.Component.internalPaintImpl(Component.java:1240)
at com.codename1.ui.Form.internalPaintImpl(Form.java:2818)
at com.codename1.ui.Component.paintInternalImpl(Component.java:1229)
at com.codename1.ui.Component.paintInternal(Component.java:1204)
at com.codename1.ui.Component.paintInternal(Component.java:1172)
at com.codename1.ui.Component.paintComponent(Component.java:1450)
at com.codename1.ui.Component.paintComponent(Component.java:1401)
at com.codename1.impl.CodenameOneImplementation.paintDirty(CodenameOneImplementation.java:475)
at com.codename1.impl.javase.JavaSEPort.paintDirty(JavaSEPort.java:1116)
at com.codename1.ui.Display.edtLoopImpl(Display.java:1056)
at com.codename1.ui.Display.invokeAndBlock(Display.java:1187)
at com.codename1.ui.Display.invokeAndBlock(Display.java:1222)
at com.codename1.ui.Form.showModal(Form.java:1608)
at com.codename1.ui.Dialog.showModal(Dialog.java:1089)
at com.codename1.ui.Dialog.show(Dialog.java:470)
at com.codename1.ui.Dialog.showPackedImpl(Dialog.java:1386)
at com.codename1.ui.Dialog.showPacked(Dialog.java:1294)
at com.codename1.ui.Dialog.showImpl(Dialog.java:1049)
at com.codename1.ui.Dialog.show(Dialog.java:1031)
at com.codename1.ui.Dialog.show(Dialog.java:989)
at com.codename1.ui.Dialog.show(Dialog.java:778)
at com.codename1.ui.Dialog.show(Dialog.java:731)
at com.codename1.ui.Dialog.show(Dialog.java:696)
at com.codename1.ui.Dialog.show(Dialog.java:540)
at com.codename1.ui.Dialog.show(Dialog.java:792)
at com.codename1.ui.Display.mainEDTLoop(Display.java:996)
at com.codename1.ui.RunnableWrapper.run(RunnableWrapper.java:120)
at com.codename1.impl.CodenameOneThread.run(CodenameOneThread.java:176)
[EDT] 0:0:0,0 - java.lang.ArrayIndexOutOfBoundsException: 36
[EDT] 0:0:0,1 - java.lang.ArrayIndexOutOfBoundsException: 36
来源：https://stackoverflow.com/questions/29234292/exception-occured-while-dynamically-changing-cell-values-if-overriding-createcel