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

<ListView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/lv">
</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<String>(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

<ListView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/lv">
</ListView>

2、在mainactivity中编写SimpleAdapter适配器:

lv=(ListView)findViewById(R.id.lv);
List<Map<String,Object>> data=new ArrayList<Map<String,Object>>();
Map<String ,Object> map1=new HashMap<String,Object>();
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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转载自blog.csdn.net/hhyihquk1/article/details/81946820