java SWT CheckBox 按钮获得选中/未选中状态
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时间：2020-11-02 10:20:23 来源:igfitidea点击:
SWT CheckBox Button get checked/unchecked state
提问by saurabh
I have a checkbox button based on which I want to set a variable as trueor false. But I don't know how to handle the event. Here's my code:
我有一个复选框按钮，我想根据该按钮将变量设置为trueor false。但我不知道如何处理事件。这是我的代码：
Boolean check = false;
Button checkBox = new Button(composite,SWT.CHECK);
checkBox.setText("CheckBox");
checkBox.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent event) {
if (event.detail == SWT.CHECK) {
// Now what should I do here to get
// Whether it is a checked event or unchecked event.
}
}
});
回答by alex2410
To validate selection use getSource()method of event to get object(Button) and check is it selected:
要验证选择使用getSource()事件的方法来获取 object( Button) 并检查它是否被选中：
checkBox.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent event) {
Button btn = (Button) event.getSource();
System.out.println(btn.getSelection());
}
});
