*我正在为诺基亚s40设备开发一个j2me-Lwuit项目。我有一些问题,请注意。我只申请了一种颜色的tiker.But我想要不同的颜色申请单个自动收报机。这是我的代码Ticker:
Ticker tick;
String tickerText=" ";
Label lblIndice=new Label();
Label ticker=new Label("");
for (int i = 0; i < tickerIndiceData.size(); i++)
{
tickerText +=" "+tickerIndiceData.elementAt(i).toString();
tickerText +=" "+tickerValueData.elementAt(i).toString();
tickerText +=" "+"("+tickerChangeData.elementAt(i).toString()+")";
lblIndice.setText(" "+tickerIndiceData.elementAt(i).toString());
lblValue.setText(" "+tickerValueData.elementAt(i).toString());
double val=Double.parseDouble(tickerChangeData.elementAt(i).toString());
if(val>0)
{
ticker.getStyle().setFgColor(0X2E9F37);
}
else
{
ticker.getStyle().setFgColor(0XFF0000);
}
lblChange.setText(" "+"("+val+")");
}
System.out.println("TICKER==="+tickerText);
ticker.setText(tickerText);
ticker.getStyle().setFont(Font.createSystemFont(Font.FACE_MONOSPACE, Font.STYLE_BOLD, Font.SIZE_SMALL));
ticker.startTicker(50, true);*
答案 0 :(得分:1)
LWUIT不支持标签的不同颜色(因此也就是自动收报机),因为这需要相当多的处理。
在LWUIT中从头开始实施自动收报机非常简单。只需导出标签并覆盖绘画:
public void paint(Graphics g) {
UIManager.getInstance().setFG(g, this);
Style style = l.getStyle();
Font f = style.getFont();
boolean isTickerRunning = l.isTickerRunning();
int txtW = f.stringWidth(text);
// update this to draw two strings one with the color that's already set and the
// other with the color you want
g.drawString(getText(), getShiftText() + getX(), getY(),style.getTextDecoration());
}