Java GridLayout

Question

Is there a way to add elements to a gridlayout that adds them horizontally instead of vertically? Basically i want to fill up an entire row with elements before it begins with the next.

Hope i made my question clear.

Answer 1

That is how GridLayout works.

Answer 2

The GridLayout, as the name suggests lays out components according to the number of columns and rows you specified in the constructor, and will move to the next row as soon as you have added the specified number of components.

From your question, it seems that a FlowLayout is more along the lines of what you're looking for.

Edit: I'm not sure why, but if you specify the number of rows as 0 (e.g. new GridLayout(0, 9), it seems to work properly.

Answer 3

I would suggest GridBagLayout and GridBagConstraints

It's a lot like a GridLayout, but with GridBagConstraints you can specify the x and y coordinates of the component, and you can do column and row spans.

It would look something like this:

GridBagLayout layout = new GridBagLayout();
GirdBagContraints c = new GridBagContraints();

JPanel panel = new JPanel();
JLabel label = new JLabel("foo");

panel.setLayout(layout);

c.gridx = 0;
c.gridy = 0;
panel.add(label, c);

Answer 4

It is probberly me not understanding something :D This is the test code i used:

    this.setLayout(new FlowLayout());
    JPanel panel = new JPanel(new GridLayout(9, 9));
    panel.add(new JTextField("test"));
    panel.add(new JTextField("test"));
    panel.add(new JTextField("test"));
    panel.add(new JTextField("test"));
    panel.add(new JTextField("test"));
    add(panel);

This is in a jFrame. This gives me 5 textboxes on top of each other, instead of side by side.

Answer 5

I assume you meant to say that you want to fill up all the rows in a column before moving to the next column. If so, then use a custom layout manager

VerticalGridLayout

Answer 6

Actually you should use GroupLayout It's new (since jdk 1.6) and pretty awesome. It gives you a ton of flexibility in layout.