ArrayAdapter和SimpleAdapter范例

适用场景:少数已知固定数据

ArrayAdapter:

1、在布局文件中定义出listview


2、在mainactivity中编写ArrayAdapter适配器:

lv=(ListView)findViewById(R.id.lv);
String[] objects=new String[]{"NFC","BLUETOOTH","WIFI","GPS"};
lv.setAdapter(new ArrayAdapter(this,R.layout.text,objects));

注:new ArrayAdapter中的参数,(content,resourece,data)

SimplerAdapter:

1、在布局文件中定义出listview


2、在mainactivity中编写SimpleAdapter适配器:

lv=(ListView)findViewById(R.id.lv);
List> data=new ArrayList>();
Map map1=new HashMap();
map1.put("icon",R.mipmap.ic_launcher_round);
map1.put("name","时间");
data.add(map1);
lv.setAdapter(new SimpleAdapter(this,data,R.layout.item,new String[]{"icon","name"},new int[]{R.id.iv,R.id.tv}));

注:new SimplerAdapter中的参数(content,data,resource,from,to),data为map类型的List集合,from和to为映射关系,from为map中的Key,to为布局文件中用来接收K值的id

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