删除具有相同名称的多个按钮

Im adding buttons for a game but when removing the button in a loop it will only get rid of one button even though i added them in the same way

我为游戏添加按钮但是当在循环中删除按钮时,即使我以相同的方式添加按钮,它也只会删除一个按钮

for(int i=0 - 1; i < 4 ; i++) {
    panelButtonsub.remove(buttonBlankItems);
    }
    panelButtonsub.setLayout (new GridLayout (intLayout,intLayout));
    revalidate();
    repaint();

2 个解决方案

#1

If you want to remove all the buttons in the panel you can use:

如果要删除面板中的所有按钮,可以使用:

panel.removeAll();

If you want to remove the first 4 buttons in the panel you can use:

如果要删除面板中的前4个按钮,可以使用:

for (int i = 0; i < 4, i++)
    panel.remove(0);

If you are trying to remove a certain type of component from the panel then you need to start at the end to remove the components:

如果您尝试从面板中删除某种类型的组件,则需要从最后开始删除组件:

int components = panel.getComponentCount();

for (int i = components - 1; i >= 0; i --)
{
    Component c = panel.getComponent(i);

    if (c instance of BlankButton)
        panel.remove(i);
}

Where BlankButton is the component you created to represent the extra space by using panel.add( new BlankButton(...) ).

其中BlankButton是您创建的用于通过使用panel.add(new BlankButton(...))来表示额外空间的组件。

If you are trying to do something else then you need to clarify your question.

如果您正在尝试做其他事情,那么您需要澄清您的问题。

#2

You must have distinct instances for each buttonBlankItems button. I guess that you are adding the same button 5 times and then you are trying to remove them.

您必须为每个buttonBlankItems按钮设置不同的实例。我猜你要添加相同的按钮5次,然后你试图删除它们。

#1