Android中ListView + CheckBox实现单选、多选效果

还是先来看看是不是你想要的效果：

不废话，直接上代码，很简单，代码里都有注释

1 单选

public class singleactivity extends appcompatactivity {
 private listview listview;
 private arraylist<string> groups;
 @override
 protected void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.activity_single);
  listview = (listview) this.findviewbyid(r.id.lvgroup);
  groups = new arraylist<string>();
  groups.add("11");
  groups.add("22");
  groups.add("33");
  groups.add("44");
  groups.add("55");
  groups.add("66");
  groups.add("77");
  adapterview.onitemclicklistener listitemclicklistener = new adapterview.onitemclicklistener() {
   @override
   public void onitemclick(adapterview<?> parent, view view, int position, long id) {
    // 取得viewholder对象，这样就省去了通过层层的findviewbyid去实例化我们需要的cb实例的步骤
    singleadapter.viewholder viewholder = (singleadapter.viewholder) view.gettag();
    viewholder.cb.toggle();// 把checkbox的选中状态改为当前状态的反,gridview确保是单一选中
   }
  };
  singleadapter adapter = new singleadapter(this, groups);
  listview.setadapter(adapter);
  listview.setonitemclicklistener(listitemclicklistener);
 }
}

adapter：

public class singleadapter extends baseadapter {
 private activity activity;//上下文
 private arraylist<string> list;
 private layoutinflater inflater = null;//导入布局
 private int temp = -1;
 public singleadapter(activity context, arraylist<string> list) {
  this.activity = context;
  this.list = list;
  inflater = layoutinflater.from(context);
 }
 @override
 public int getcount() {
  return list.size();
 }
 @override
 public object getitem(int position) {
  return list.get(position);
 }
 @override
 public long getitemid(int position) {
  return position;
 }
 //listview每显示一行数据,该函数就执行一次
 @override
 public view getview(int position, view convertview, viewgroup parent) {
  viewholder holder = null;
  if (convertview == null) {//当第一次加载listview控件时 convertview为空
   convertview = inflater.inflate(r.layout.group_item_view, null);//所以当listview控件没有滑动时都会执行这条语句
   holder = new viewholder();
   holder.tv = (textview) convertview.findviewbyid(r.id.item_tv);
   holder.cb = (checkbox) convertview.findviewbyid(r.id.item_cb);
   convertview.settag(holder);//为view设置标签
  } else {//取出holder
   holder = (viewholder) convertview.gettag();
  }
  //设置list的textview显示
  holder.tv.settextcolor(color.white);
  holder.tv.settext(list.get(position));
  // 根据isselected来设置checkbox的选中状况
  holder.cb.setid(position);//对checkbox的id进行重新设置为当前的position
  holder.cb.setoncheckedchangelistener(new compoundbutton.oncheckedchangelistener() {
   @override
   public void oncheckedchanged(compoundbutton compoundbutton, boolean ischecked) {
    if (ischecked) {//实现checkbox的单选功能,同样适用于radiobutton
     if (temp != -1) {
      //找到上次点击的checkbox,并把它设置为false,对重新选择时可以将以前的关掉
      checkbox tempcheckbox = (checkbox) activity.findviewbyid(temp);
      if (tempcheckbox != null)
       tempcheckbox.setchecked(false);
     }
     temp = compoundbutton.getid();//保存当前选中的checkbox的id值
    }
   }
  });
  if (position == temp)//比对position和当前的temp是否一致
   holder.cb.setchecked(true);
  else
   holder.cb.setchecked(false);
  return convertview;
 }
 public static class viewholder {
  textview tv;
  checkbox cb;
 }
}

多选：

public class mulactivity extends appcompatactivity {
 private listview listview;
 private arraylist<string> groups;
 @override
 protected void oncreate(bundle savedinstancestate) {
  super.oncreate(savedinstancestate);
  setcontentview(r.layout.activity_mul);
  listview = (listview) this.findviewbyid(r.id.list);
  groups = new arraylist<>();
  groups.add("11");
  groups.add("22");
  groups.add("33");
  groups.add("44");
  groups.add("55");
  groups.add("66");
  groups.add("77");
  adapterview.onitemclicklistener listitemclicklistener = new adapterview.onitemclicklistener() {
   @override
   public void onitemclick(adapterview<?> parent, view view, int position,
         long id) {
    // 取得viewholder对象，这样就省去了通过层层的findviewbyid去实例化我们需要的cb实例的步骤
    muladapter.viewholder viewholder = (muladapter.viewholder) view.gettag();
    viewholder.cb.toggle();// 把checkbox的选中状态改为当前状态的反,gridview确保是单一选中
    muladapter.getisselected().put(position, viewholder.cb.ischecked());//将checkbox的选中状况记录下来
   }
  };
  muladapter adapter = new muladapter(this, groups);
  listview.setadapter(adapter);
  listview.setonitemclicklistener(listitemclicklistener);
 }
}

adapter：

public class muladapter extends baseadapter {
 private context context;//上下文
 private arraylist<string> list;
 //控制checkbox选中情况
 private static hashmap<integer, boolean> isselected;
 private layoutinflater inflater = null;//导入布局
 public muladapter(context context, arraylist<string> list) {
  this.context = context;
  this.list = list;
  inflater = layoutinflater.from(context);
  isselected = new hashmap<integer, boolean>();
  initdata();
 }
 private void initdata() {//初始化isselected的数据
  for (int i = 0; i < list.size(); i++) {
   getisselected().put(i, false);
  }
 }
 @override
 public int getcount() {
  return list.size();
 }
 @override
 public object getitem(int position) {
  return list.get(position);
 }
 @override
 public long getitemid(int position) {
  return position;
 }
 //listview每显示一行数据,该函数就执行一次
 @override
 public view getview(int position, view convertview, viewgroup parent) {
  viewholder holder = null;
  if (convertview == null) {//当第一次加载listview控件时 convertview为空
   convertview = inflater.inflate(r.layout.group_item_view, null);//所以当listview控件没有滑动时都会执行这条语句
   holder = new viewholder();
   holder.tv = (textview) convertview.findviewbyid(r.id.item_tv);
   holder.cb = (checkbox) convertview.findviewbyid(r.id.item_cb);
   convertview.settag(holder);//为view设置标签
  } else {//取出holder
   holder = (viewholder) convertview.gettag();//the object stored in this view as a tag
  }
  //设置list的textview显示
  holder.tv.settextcolor(color.white);
  holder.tv.settext(list.get(position));
  // 根据isselected来设置checkbox的选中状况
  holder.cb.setchecked(getisselected().get(position));
  return convertview;
 }
 public static class viewholder {
  textview tv;
  checkbox cb;
 }
 public static hashmap<integer, boolean> getisselected() {
  return isselected;
 }
 public static void setisselected(hashmap<integer, boolean> isselected) {
  muladapter.isselected = isselected;
 }
}

以上所述是小编给大家介绍的android中listview + checkbox实现单选、多选效果，希望对大家有所帮助