I use Custom GridField Manager to display information in 2 columns with a specified width. When the value of the right side is too large, the value is not carried over to the next line.
Here is my Custom GridField Manager class.
public class CustomGridFieldManager extends Manager {
private int[] columnWidths;
private int columns;
private int allRowHeight = -1;
public CustomGridFieldManager(int columns, long style) {
super(style);
this.columns = columns;
}
public CustomGridFieldManager(int[] columnWidths, long style) {
super(style);
this.columnWidths = columnWidths;
this.columns = columnWidths.length;
}
public CustomGridFieldManager(int[] columnWidths, int rowHeight, long style) {
this(columnWidths, style);
this.allRowHeight = rowHeight;
}
protected boolean navigationMovement(int dx, int dy, int status, int time) {
int focusIndex = getFieldWithFocusIndex();
while(dy > 0) {
focusIndex += columns;
if (focusIndex >= getFieldCount()) {
return false;
}
else {
Field f = getField(focusIndex);
if (f.isFocusable()) {
f.setFocus();
dy--;
}
}
}
while(dy < 0) {
focusIndex -= columns;
if (focusIndex < 0) {
return false;
}
else {
Field f = getField(focusIndex);
if (f.isFocusable()) {
f.setFocus();
dy++;
}
}
}
while(dx > 0) {
focusIndex ++;
if (focusIndex >= getFieldCount()) {
return false;
}
else {
Field f = getField(focusIndex);
if (f.isFocusable()) {
f.setFocus();
dx--;
}
}
}
while(dx < 0) {
focusIndex --;
if (focusIndex < 0) {
return false;
}
else {
Field f = getField(focusIndex);
if (f.isFocusable()) {
f.setFocus();
dx++;
}
}
}
return true;
}
protected void sublayout(int width, int height) {
int y = 0;
if (columnWidths == null) {
columnWidths = new int[columns];
for(int i = 0; i < columns; i++) {
columnWidths[i] = width/columns;
}
}
Field[] fields = new Field[columnWidths.length];
int currentColumn = 0;
int rowHeight = 0;
for(int i = 0; i < getFieldCount(); i++) {
fields[currentColumn] = getField(i);
layoutChild(fields[currentColumn], columnWidths[currentColumn], height-y);
if (fields[currentColumn].getHeight() > rowHeight) {
rowHeight = fields[currentColumn].getHeight();
}
currentColumn++;
if (currentColumn == columnWidths.length || i == getFieldCount()-1) {
int x = 0;
if (this.allRowHeight >= 0) {
rowHeight = this.allRowHeight;
}
for(int c = 0; c < currentColumn; c++) {
long fieldStyle = fields[c].getStyle();
int fieldXOffset = 0;
long fieldHalign = fieldStyle & Field.FIELD_HALIGN_MASK;
if (fieldHalign == Field.FIELD_RIGHT) {
fieldXOffset = columnWidths[c] - fields[c].getWidth();
}
else if (fieldHalign == Field.FIELD_HCENTER) {
fieldXOffset = (columnWidths[c]-fields[c].getWidth())/2;
}
int fieldYOffset = 0;
long fieldValign = fieldStyle & Field.FIELD_VALIGN_MASK;
if (fieldValign == Field.FIELD_BOTTOM) {
fieldYOffset = rowHeight - fields[c].getHeight();
}
else if (fieldValign == Field.FIELD_VCENTER) {
fieldYOffset = (rowHeight-fields[c].getHeight())/2;
}
setPositionChild(fields[c], x+fieldXOffset, y + fieldYOffset);
x += columnWidths[c];
}
currentColumn = 0;
y += rowHeight;
}
if (y >= height) {
break;
}
}
int totalWidth = 0;
for(int i = 0; i < columnWidths.length; i++) {
totalWidth += columnWidths[i];
}
setExtent(totalWidth, Math.min(y, height));
}
}
In another class, I use this custom GridField manager class.
int[] width = { (int) (Display.getWidth() / 2.9),
(int) (Display.getWidth() / 1.1) };
final CustomGridFieldManager gfm_transactioninfo = new CustomGridFieldManager(
width, 35, Manager.VERTICAL_SCROLL | Manager.FIELD_HCENTER
| FOCUSABLE) {
protected void paint(Graphics graphics) {
graphics.setColor(AppData.color_black);
super.paint(graphics);
}
};
gfm_transactioninfo.setMargin(10, 0, 0, 10);
I add Labelfiled like this,
lbl_CustEmail = new LabelField("Customer Email", LabelField.FOCUSABLE);
lbl_CustEmail.setFont(label_font);
value_CustEmail = new LabelField(": " +trandtail[0].getFromEmail());
value_CustEmail.setFont(label_font);
gfm_transactioninfo.add(lbl_CustEmail);
gfm_transactioninfo.add(value_CustEmail);
If anyone has an idea, then pls help.