本文整理匯總了Java中javax.swing.JButton.hasFocus方法的典型用法代碼示例。如果您正苦於以下問題：Java JButton.hasFocus方法的具體用法？Java JButton.hasFocus怎麽用？Java JButton.hasFocus使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類javax.swing.JButton的用法示例。
在下文中一共展示了JButton.hasFocus方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: start
import javax.swing.JButton; //導入方法依賴的package包/類
@Override
public void start() {
Toolkit.getDefaultToolkit().addAWTEventListener(new AWTEventListener() {
public void eventDispatched(AWTEvent e) {
System.err.println(e);
}
}, FocusEvent.FOCUS_EVENT_MASK | WindowEvent.WINDOW_FOCUS_EVENT_MASK);
boolean gained = false;
final Robot robot = Util.createRobot();
JFrame frame1 = new JFrame("Main Frame");
final JButton b1 = new JButton("button1");
frame1.add(b1);
frame1.pack();
frame1.setLocation(0, 300);
Util.showWindowWait(frame1);
final JFrame frame2 = new JFrame("Test Frame");
final JButton b2 = new JButton("button2");
frame2.add(b2);
frame2.pack();
frame2.setLocation(300, 300);
b2.setEnabled(false);
b2.requestFocus();
Util.showWindowWait(frame2);
robot.delay(500);
//
// It's expeced that the focus is restored to <button1>.
// If not, click <button1> to set focus on it.
//
if (!b1.hasFocus()) {
gained = Util.trackFocusGained(b1, new Runnable() {
public void run() {
Util.clickOnComp(b1, robot);
}
}, 5000, false);
if (!gained) {
throw new RuntimeException("Unexpected state: focus is not on <button1>");
}
}
robot.delay(500);
//
// Click <button2>, check that focus is set on the parent frame.
//
gained = false;
gained = Util.trackFocusGained(frame2, new Runnable() {
public void run() {
Util.clickOnComp(b2, robot);
}
}, 5000, false);
if (!gained) {
throw new RuntimeException("Test failed: focus wasn't set to <frame2>");
}
System.out.println("Test passed.");
}