Example usage for java.awt FocusTraversalPolicy getComponentBefore

Introduction

In this page you can find the example usage for java.awt FocusTraversalPolicy getComponentBefore.

Prototype

public abstract Component getComponentBefore(Container aContainer, Component aComponent);

Source Link

Document

Returns the Component that should receive the focus before aComponent.

Usage

From source file:Main.java

public static Component findPrevFocus() {
    Component c = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
    Container root = c.getFocusCycleRootAncestor();

    FocusTraversalPolicy policy = root.getFocusTraversalPolicy();
    Component prevFocus = policy.getComponentBefore(root, c);
    if (prevFocus == null) {
        prevFocus = policy.getDefaultComponent(root);
    }//from w  w w  .  jav a  2 s.co m
    return prevFocus;
}

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