问题
I have a jpanel with gridbaglayout layout, in it i have several jtextfields, several jlabels, several jbuttons which get added dynamically. Therefore I cannot know their specific orders, hence cannot use panel.getComponent(count). I looked in the api if there is something like getGridx(int x) or getGridy(int y). Didn't find. Is there anything similar to those methods?
回答1:
The simplest solution might be to use GridBagLayout#getConstraints(Component) and simply loop through all the components until you find one that matches the required grid position...
Component match = null;
GridBagLayout layout = ...
for (Component comp : getComponents()) {
GridBagConstraints gbc = layout.getConstraints(comp);
if (gbc.gridx = x && gbc.gridy = y) {
match = comp;
break;
}
}
来源:https://stackoverflow.com/questions/19043373/how-to-get-component-located-in-a-specific-gridx-gridy-from-a-jpanel-with-gridb