并排编辑字段

Question

有人可以告诉我为什么我不能将2个EditFields与下面的代码并排放置？我可以并排放置3个按钮，但由于某种原因，我无法让EditFields为我工作。任何帮助将不胜感激。

            //Bin Height
    HorizontalFieldManager hManagerBinHeight = new HorizontalFieldManager(FIELD_BOTTOM);

    LabelField lblRadiusOfBin = new LabelField("Radius of Bin: ", LabelField.FIELD_LEFT);

    EditField txtRadiusFeet = new EditField("Feet: ", "", 3, BasicEditField.FILTER_NUMERIC);
    EditField txtRadiusInches = new EditField("Inches: ", "", 2, BasicEditField.FILTER_NUMERIC);

    hManagerBinHeight.add(lblRadiusOfBin);
    hManagerBinHeight.add(txtRadiusFeet);
    hManagerBinHeight.add(txtRadiusInches);

    add(hManagerBinHeight);

Answer 1

默认情况下，

EditField会消耗布局过程中传递给它们的所有可用宽度。因此，第二个EditField的可用宽度为0.为了并排排列它们，您必须：

1. 使用父sublayout()方法（或layout()的{​​{1}}）手动布局。
2. 覆盖EditField的Manager方法并使其消耗固定宽度而非所有宽度。

选项1 ：

layout()




选项2：

    HorizontalFieldManager hManagerBinHeight = new HorizontalFieldManager(FIELD_BOTTOM);

    LabelField lblRadiusOfBin = new LabelField("Radius of Bin: ", LabelField.FIELD_LEFT);

    final EditField txtRadiusFeet = new EditField("Feet: ", "", 3, BasicEditField.FILTER_NUMERIC);
    txtRadiusFeet.setBorder(BorderFactory.createRoundedBorder(new XYEdges()));
    final EditField txtRadiusInches = new EditField("Inches: ", "", 2, BasicEditField.FILTER_NUMERIC);
    txtRadiusInches.setBorder(BorderFactory.createRoundedBorder(new XYEdges()));

    HorizontalFieldManager hfm = new HorizontalFieldManager(USE_ALL_WIDTH) {
        protected void sublayout(int maxWidth, int maxHeight) {
            layoutChild(txtRadiusFeet, maxWidth/2, maxHeight);
            layoutChild(txtRadiusInches, maxWidth/2, maxHeight);
            setPositionChild(txtRadiusFeet, 0, 0);
            setPositionChild(txtRadiusInches, txtRadiusFeet.getWidth(), 0);

            setExtent(maxWidth, txtRadiusFeet.getHeight());
        };
    };
    hfm.add(txtRadiusFeet);
    hfm.add(txtRadiusInches);

    hManagerBinHeight.add(lblRadiusOfBin);
    hManagerBinHeight.add(hfm);

    add(hManagerBinHeight);


结果