如何隐藏GXT的信息通知?



我在GWT应用程序中使用GXT的Info类来显示消息或通知。为了使消息更有粘性,我实现了我自己版本的Info类:我创建了一个InfoConfig实例并设置毫秒数:config.display(int milliseconds);

问题是有时我不需要信息是"粘",所以我需要隐藏它,当我做别的事情:我试图调用hide()方法,但它不工作!

我的Info类实现:

public class StickyInfo extends Info {
    private static StickyInfo info = new StickyInfo();
    public StickyInfo() {
        super();
    }
    @Override
    protected void onShowInfo() {
        super.onShowInfo();
    }
    /**
     * Show the message with a title for 20sec (default duration)
     * 
     * @param title
     *            the title of the message.
     * @param message
     *            the message to display.
     */
    public void show(String title, String message) {
        show(title, message, 20000); // for 20sec
    }
    /**
     * Show the message with no title for 20sec (default duration)
     * 
     * @param message
     *            the message to display.
     */
    public void show(String message) {
        show(null, message, 20000); // for 20sec
    }
    /**
     * Show the message for the specified number of milliseconds.
     * 
     * @param title
     *            the title of the message.
     * @param message
     *            the message to display.
     * @param milliseconds
     *            the number of milliseconds to display the message.
     */
    public void show(String title, String message, int milliseconds) {
        // Configuration
        InfoConfig config = new DefaultInfoConfig(title, message);
        config.setDisplay(milliseconds);
        // Formatting
        info.setStyleName("background-color:#f9ff4f;text-align:center;"
                + "border:0x solid black; padding: 3px; font-size:11px;font-weight: bold;");
        info.show(config);
        // Position
        // Point p = info.position();
        // p.setY(p.getY() + 400);
        // p.setX(0);
        info.setPagePosition(info.position().getX(), 55);
    }
    /**
     * Show the message in the given position for the number of milliseconds.
     * 
     * @param title
     *            the title of the message.
     * @param message
     *            the message to display.
     * @param milliseconds
     *            the number of milliseconds to display the message.
     */
    public void show(String title, String message, int milliseconds, int pX,
            int pY) {
        // Configuration
        InfoConfig config = new DefaultInfoConfig(title, message);
        config.setDisplay(milliseconds);
        // Formatting
        info.setStyleName("background-color:#f9ff4f;text-align:center;"
                + "border:0x solid black; padding: 3px; font-size:11px;font-weight: bold;");
        info.show(config);
        // Position
        // Point p = info.position();
        // p.setY(p.getY() + 400);
        // p.setX(0);
        info.setPagePosition(pX, pY);
    }

指针吗?谢谢。

尝试@Override隐藏()方法div…

正如user2043260所提到的,我试图用以下方法覆盖hide()方法:

@Override
public void hide() {
   if (info.getParent != null) {
      info.removeFromParent();
   }
} 

它工作得很好:)!谢谢你的提醒;)

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