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我正在使用自定義GridField管理器以2列顯示具有指定寬度的詳細信息。 當右側的值太大時,值不包裝到下一行。使用自定義GridField管理器在BB中無法使用自動換行功能
這是我的Custom GridField Manager類。
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; // Focus moves out of this manager
}
else {
Field f = getField(focusIndex);
if (f.isFocusable()) { // Only move the focus onto focusable fields
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));
}
}
在另一個類,我用這個自定義GridField管理器類。
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) {
// TODO Auto-generated method stub
graphics.setColor(AppData.color_black);
super.paint(graphics);
}
};
gfm_transactioninfo.setMargin(10, 0, 0, 10);// set top and left margin
我添加Labelfiled這樣,
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);
如果任何1有想法,然後請幫助。
您能否確認,在給出的示例中,它是不包裝的value_CustEmail LabelField。你可以讓它聚焦,看看你是否可以通過水平滾動查看全部內容? –
通過使其變得可以聚焦,它變得可以聚焦但不可滾動。 –
我使用了LabelField.FOCUSABLE。現在你能告訴我如何使它水平滾動? –