Using a GridBagLayout Manager : GridBagLayout « Swing « Java Tutorial

  1. GridBagLayout is the most complex and most flexible of the layout managers.
  2. Elements are arranged in a rectangular grid.
  3. Elements can have different sizes and can occupy multiple rows or columns.
  4. The position and behavior of each element is specified by an instance of the GridBagConstraints class.
Using a GridBagLayout Manager
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.border.Border;
public class TryGridBagLayout {
  static JFrame aWindow = new JFrame("This is a Gridbag Layout");
  public static void main(String[] args) {
    aWindow.setBounds(30, 30, 300, 300);
    GridBagLayout gridbag = new GridBagLayout();
    GridBagConstraints constraints = new GridBagConstraints();
    constraints.weightx = constraints.weighty = 10.0;
    constraints.fill = constraints.BOTH;
    addButton(" Press ", constraints, gridbag);
    constraints.gridwidth = constraints.REMAINDER;
    addButton("GO", constraints, gridbag);
  static void addButton(String label, GridBagConstraints constraints, GridBagLayout layout) {
    Border edge = BorderFactory.createRaisedBevelBorder();
    JButton button = new JButton(label);
    layout.setConstraints(button, constraints);

14.94.1.Using a GridBagLayout ManagerUsing a GridBagLayout Manager
14.94.2.Uses many featuresUses many features
14.94.3.Place a component at cell location (1,1)
14.94.4.Setting the Location of a Component in a GridBagLayout
14.94.5.Getting the Number of Rows and Columns of Cells in a GridBagLayout
14.94.6.Making a GridBagLayout Fill the Container
14.94.7.Setting the Stretchyness of Rows and Columns in a GridBagLayout Using Layout Weights
14.94.8.Place a component at (0,1) with a column weight 1 and a row weight of 2
14.94.9.Setting Stretchyness of a GridBagLayout Using Fill
14.94.10.Make the component on stretchable
14.94.11.Make the component only stretch horizontally
14.94.12.Make the component only stretch vertically
14.94.13.Make the component stretch in both directions
14.94.14.Setting the Space around a Component Within the Cell of the GridBagLayout Using Insets
14.94.15.Create and set a gridbag layout and how to set gridbag constraints
14.94.16.Associate the gridbag constraints with the component
14.94.17.Positions five components within a container, using weights, fill, and relative positioningPositions five components within a container, using weights, fill, and relative positioning
14.94.18.Positioning a component in the center of other component using GridbagLayout