使用LWUIT列出带有复选框 [英] List with checkbox using LWUIT

问题描述

我正在使用LWUIT获得List中可供选择的搜索工具. 现在我想知道如何使用CheckBoxes显示列表?

I am using LWUIT for getting a search facility for selection in the List. Now I want to know how can I display the list with CheckBoxes?

list=new List(vector);
cform.addComponent(list);
cform.addComponent(t);
cform.show();

推荐答案

我不知道有没有比我的解决方案更简单的解决方案，但是我的是高度可定制的并且可以用于很多目的.

I don't know if there is a more simple solution then mine, but mine is highly customizable and can serve for a lot of purposes.

List l = new List;

Vector v = new Vector();
for(int i = 0; i < 10; ++i){
   v.addElement(new CheckItem("itemtekst"));
}

l.setListCellRenderer(new CheckItemRenderer());
l.setModel(new CheckItemModel(v));

上面的代码使其起作用.如您所料，您必须创建一个新类并重写两个类才能使其正常工作.

the code above makes it work. As you can guess you have to make a new class and override two to make it work.

CHECKITEM:此类具有一个字符串和一个图像.以及设置者和获取者.它也有一个布尔值，显示是否选中它.

CHECKITEM: this class has a string and an image. as well as setters and getters. it also has a boolean that shows if it is checked or not.

CHECKITEMRENDERER:具有字符串标签和扩展了Container并实现ListCellRenderer的checkitem图像

CHECKITEMRENDERER: has a label for the string and the image of the checkitem it extends Container and implements ListCellRenderer

CHECKITEMMODEL:这扩展了默认列表模型.它具有获取选中项和设置选中或未选中项的方法.

CHECKITEMMODEL: this extends the defaultlistmodel. it has methods to get the checkeditems and setthem checked or unchecked.

回顾:

• 在向量中设置正确的项目
• 设置正确的渲染器
• 设置正确的模型

并使用它添加一个动作侦听器，否则将一无所获.

and to use it add an actionlistener or it will al be for nothing.

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