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Old 04-27-2009, 08:01 AM   #1 (permalink)
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Default ButtonField Wierdness on Storm

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Have put 2 ButtonFields into a HorizontalFieldManager and am repositioning this on the screen using sublayout override. Buttons respond to scrolling, and enter key press, but one of them is not responding to screen touch. The other button responds correctly. Problem goes away in the containing HorizontalFieldManager is not re-positioned, or if the button's preferred width is set to be a large value (eg. > 50 pixels). From what I can tell, setPositionChild is causing the problem - but I can't understand why.

Has anyone seen this before? I am including code just in case there is something really basic I am missing.



Thanks







public class TestScreen extends MainScreen {


ButtonField aBut1 = new ButtonField("<", ButtonField.CONSUME_CLICK);
ButtonField aBut3 = new ButtonField(">", ButtonField.CONSUME_CLICK );

public TestScreen() {

VerticalFieldManager vfm = new VerticalFieldManager(NO_HORIZONTAL_SCROLL |
NO_VERTICAL_SCROLL | USE_ALL_HEIGHT | USE_ALL_HEIGHT) {


protected void sublayout(int maxWidth, int maxHeight) {

super.sublayout(Display.getWidth(), Display.getHeight());

int iCount = getFieldCount();

for (int i = 0; i < iCount; i++) {

Field aField = getField(i);

layoutChild(aField, maxWidth, Display.getHeight());

if (aField instanceof HorizontalFieldManager) { // reposition hfm

setPositionChild(aField, (Display.getWidth() - aField.getWidth()) / 2, Display.getHeight() /2 );
}
}
setExtent(Display.getWidth(), Display.getHeight());
}
};



HorizontalFieldManager hfmButt = new HorizontalFieldManager();

LabelField label = new LabelField("label text");


aBut1.setChangeListener(choseListener);
aBut3.setChangeListener(choseListener);



hfmButt.add(aBut1);
hfmButt.add(label);
hfmButt.add(aBut3);



vfm.add(hfmButt);

add(vfm);
}



FieldChangeListener choseListener = new FieldChangeListener() {

public void fieldChanged(Field field, int context) {

DoSomething();

}
};
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