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In my application i had to implement custom component that is extended from VerticalFieldManager and this manager holds Rows which are HorizontalFieldManager. The problem is in OS 4.5 LabelField in the left shows only one line of text. Here is the code and images.BB6.0 enter image description here

class Row extends HorizontalFieldManager{
    private LabelField key;
    private LabelField value;

    public Row(String left,String right){
        key = new LabelField(left + ": ",Field.NON_FOCUSABLE | Field.NON_SPELLCHECKABLE | TextField.NO_LEARNING | RichTextField.USE_TEXT_WIDTH){
            public int getPreferredWidth() {
                return Math.min((Display.getWidth()-20)/2,super.getPreferredWidth());
            }
        };
        key.setPadding(0, 0, 0, 10);
        key.setFont(Fonts.NORMAL);
        add(key);

        value = new LabelField(right,Field.NON_SPELLCHECKABLE | TextField.NO_LEARNING | Field.FOCUSABLE);
        value.setPadding(0, 10, 0, 0);
        value.setFont(Fonts.BOLD);
        add(value);
    }
    public int getPreferredHeight() {
        return Math.max(key.getHeight(), value.getHeight());
    }
    public int getPreferredWidth() {
        return Display.getWidth()-20;
    }
    protected void sublayout(int arg0, int arg1) {
        super.sublayout(arg0, arg1);
        setExtent(getPreferredWidth(), getPreferredHeight());
    }
}
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1 に答える 1

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以下に示すように、LabelFields を VFM 内に配置し、メソッドをオーバーライドして問題を解決しました getPreferredHeight()。sublayout()ありがとう、スミスさん。

class Row extends HorizontalFieldManager{
    private LabelField key;
    private LabelField value;

    public Row(String left,String right){
        VerticalFieldManager leftVfm = new VerticalFieldManager(){
            public int getPreferredWidth() {
                return Math.min(getField(0).getPreferredWidth(), (Display.getWidth())/2);
            }
            protected void sublayout(int maxWidth, int maxHeight) {
                super.sublayout(getPreferredWidth(), maxHeight);
                setExtent(getPreferredWidth(), maxHeight);
            }
        };
        VerticalFieldManager rightVfm = new VerticalFieldManager();

        key = new LabelField(label.getLabel() + ": ",Field.FOCUSABLE);
        key.setFont(Fonts.NORMAL);
        leftVfm.add(key);

        value = new LabelField(label.getRight(),Field.FOCUSABLE);
        value.setFont(Fonts.BOLD);
        rightVfm.add(value);

        add(leftVfm);
        add(rightVfm);
    }
    public int getPreferredHeight() {
        if (key != null)
            return Math.max(key.getHeight(), value.getHeight());
        else{
            return value.getHeight();
        }
    }
    public int getPreferredWidth() {
        return Display.getWidth()-20;
    }
    protected void sublayout(int arg0, int arg1) {
        super.sublayout(arg0, arg1);
        setExtent(getPreferredWidth(), getPreferredHeight());
    }
}
于 2012-02-08T15:46:05.397 に答える