Android ListView 自定义 Adapter

public class ListViewAdapter extends BaseAdapter {
private static final String TAG = MainActivity.class.getName();

private Context context; // 运行上下文
private List<Map<String, Object>> listItems; // 商品信息集合
private LayoutInflater listContainer; // 视图容器

public final class ListItemView { // 自定义控件集合
public ImageView image_status;
public TextView text_storage;
public TextView text_device;
public TextView text_temperature;
public TextView text_humidity;
public TextView text_updatetime;
}

public ListViewAdapter(Context context, List<Map<String, Object>> listItems) {
this.context = context;
this.listContainer = LayoutInflater.from(this.context); // 创建视图容器并设置上下文
this.listItems = listItems;
}

@Override
public int getCount() {
// TODO Auto-generated method stub
Log.i(TAG, "getCount:" + listItems.size());
return listItems.size();//获取数量
}

@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}

@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
Log.i(TAG, "getView");
// 自定义视图
ListItemView listItemView = null;
if (convertView == null) {
listItemView = new ListItemView();
// 获取list_item布局文件的视图
convertView = listContainer.inflate(R.layout.list_item, null);
listItemView.image_status = (ImageView) convertView
.findViewById(R.id.item_image_status);
listItemView.text_storage = (TextView) convertView
.findViewById(R.id.item_text_storage);
listItemView.text_device = (TextView) convertView
.findViewById(R.id.item_text_device);
listItemView.text_temperature = (TextView) convertView
.findViewById(R.id.item_text_temperature);
listItemView.text_humidity = (TextView) convertView
.findViewById(R.id.item_text_humidity);
listItemView.text_updatetime = (TextView) convertView
.findViewById(R.id.item_text_updatetime);

// 设置文字和图片
listItemView.image_status.setBackgroundResource((Integer) listItems
.get(position).get("image"));
listItemView.text_storage.setText((String) listItems.get(position)
.get("storage"));
listItemView.text_device.setText((String) listItems.get(position)
.get("device"));
listItemView.text_temperature.setText((String) listItems.get(
position).get("temperature"));
listItemView.text_humidity.setText((String) listItems.get(position)
.get("humidity"));
listItemView.text_updatetime.setText((String) listItems.get(
position).get("updatetime"));

convertView.setTag(listItemView);
} else {
listItemView = (ListItemView) convertView.getTag();
}
return convertView;
}

}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal" >

<ImageView
android:id="@+id/item_image_status"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />

<TextView
android:id="@+id/item_text_storage"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />

<TextView
android:id="@+id/item_text_device"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />

<TextView
android:id="@+id/item_text_temperature"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />

<TextView
android:id="@+id/item_text_humidity"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />

<TextView
android:id="@+id/item_text_updatetime"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />

</LinearLayout>

private void initListView() {
data_listview = (ListView) findViewById(R.id.data_listview);
listItems = getListItems();
listadapter = new ListViewAdapter(this, listItems);
Log.i(TAG, "setAdapter");
data_listview.setAdapter(listadapter);
}

private List<Map<String, Object>> getListItems() {
List<Map<String, Object>> listItems = new ArrayList<Map<String, Object>>();
for (int i = 0; i < 10; i++) {
Map<String, Object> map = new HashMap<String, Object>();
map.put("image", R.drawable.ic_logo);
map.put("storage", "仓库");
map.put("device", "设备");
map.put("temperature", "温度");
map.put("humidity", "湿度");
map.put("updatetime", "上传时间");
listItems.add(map);
}
return listItems;
}