Android（二十三）：Adapter之ArrayAdapter、SimpleAdapter

Adapter是连接后端数据和前端显示的适配器接口，是数据和UI（View）之间一个重要的纽带

    
        张三
        李四
        王五
    

// ArrayAdapter
var listView01 = (ListView)FindViewById(Resource.Id.list_view_01);
var arr = new[] { "A", "B", "C" };
// 单独一行的文本框
var arrayAdapter = new ArrayAdapter(this, Android.Resource.Layout.SimpleListItem1, arr);
// // 两个文本框组成
// var arrayAdapter = new ArrayAdapter(this, Android.Resource.Layout.SimpleListItem2, arr);
// // 每项都是由一个已选中的列表项
// var arrayAdapter = new ArrayAdapter(this, Android.Resource.Layout.SimpleListItemChecked, arr);
// // 都带有一个复选框
// var arrayAdapter = new ArrayAdapter(this, Android.Resource.Layout.SimpleListItemMultipleChoice, arr);
// // 都带有一个单选钮
// var arrayAdapter = new ArrayAdapter(this, Android.Resource.Layout.SimpleListItemSingleChoice, arr);
if (listView01 != null) listView01.Adapter = arrayAdapter;

// SimpleAdapter
var listView02 = (ListView)FindViewById(Resource.Id.list_view_02);
IList> list = new JavaList>
{
    new JavaDictionary
    {
        { "avatar", Resource.Drawable.avatar },
        { "name", "ProsperLee" },
        { "say", "人海茫茫，你我依旧孤独～～～" }
    },
    new JavaDictionary
    {
        { "avatar", Resource.Drawable.avatar },
        { "name", "Lee" },
        { "say", "谁又能来拯救我这灰暗的人生呢……" }
    },
    new JavaDictionary
    {
        { "avatar", Resource.Drawable.avatar },
        { "name", "You瞧谁不起" },
        { "say", "道不尽世间的沧桑，诉不完人生的悲凉！" }
    }
};
var keys = new[] { "avatar", "name", "say" };
var targets = new[] { Resource.Id.avatar, Resource.Id.name, Resource.Id.say };
var simpleAdapter = new SimpleAdapter(this, list, Resource.Layout.list_item, keys, targets);
if (listView02 != null) listView02.Adapter = simpleAdapter;