有人可以让我知道为什么我不能与以下代码并排放置2个EditFields吗?我可以并排放置3个按钮,但是由于某种原因,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);
最佳答案
默认情况下,EditField
使用所有在布局期间传递给它们的可用宽度。结果,第二个EditField剩余的可用宽度为0。为了并排布局它们,您必须:
使用父级的sublayout()
方法(或layout()
的情况下为Manager
)手动布置它们。
重写EditField的layout()
方法,使其占用固定宽度,而不是全部宽度。
选项1:
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);
选项2:
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) {
// Limit the width of the edit field to be the half of the available width
protected void layout(int width, int height) {
super.layout(width/2, height);
}
};
txtRadiusFeet.setBorder(BorderFactory.createRoundedBorder(new XYEdges()));
EditField txtRadiusInches = new EditField("Inches: ", "", 2, BasicEditField.FILTER_NUMERIC);
txtRadiusInches.setBorder(BorderFactory.createRoundedBorder(new XYEdges()));
HorizontalFieldManager hfm = new HorizontalFieldManager(USE_ALL_WIDTH);
hfm.add(txtRadiusFeet);
hfm.add(txtRadiusInches);
hManagerBinHeight.add(lblRadiusOfBin);
hManagerBinHeight.add(hfm);
add(hManagerBinHeight);
结果