本文整理汇总了Java中javax.swing.JButton.hasFocus方法的典型用法代码示例。如果您正苦于以下问题：Java JButton.hasFocus方法的具体用法？Java JButton.hasFocus怎么用？Java JButton.hasFocus使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类javax.swing.JButton的用法示例。
在下文中一共展示了JButton.hasFocus方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: start
import javax.swing.JButton; //导入方法依赖的package包/类
@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.");
}