将数组列表添加到自定义列表视图
问题描述:
我已经定制了ListView
。我试图通过Arraylist
来填充ListView
。我可以成功发送数据作为字符串来填充ListView
而不是ArrayList
。只显示所有值为arraylist
的单行。将数组列表添加到自定义列表视图
MainActivity
public class MainActivity extends Activity {
ArrayList<Product> products = new ArrayList<Product>();
Adapter listviewAdapter;
List arrlist = new ArrayList();
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
arrlist.add("1");
arrlist.add("2");
fillData();
listviewAdapter = new Adapter(this, products);
ListView lvMain = (ListView) findViewById(R.id.lvMain);
lvMain.setAdapter(listviewAdapter);
}
void fillData() {
products.add(new Product(arrlist.toString(),false)); //problem is here i suppose
}
}
Adapter.java
public class Adapter extends BaseAdapter {
Context ctx;
LayoutInflater lInflater;
ArrayList<Product> objects;
Adapter(Context context, ArrayList<Product> products) {
ctx = context;
objects = products;
lInflater = (LayoutInflater) ctx
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getCount() {
return objects.size();
}
@Override
public Object getItem(int position) {
return objects.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
view = lInflater.inflate(R.layout.item, parent, false);
}
Product p = getProduct(position);
((TextView) view.findViewById(R.id.tvDescr)).setText(p.name);
CheckBox cbBuy = (CheckBox) view.findViewById(R.id.cbBox);
return view;
}
Product getProduct(int position) {
return ((Product) getItem(position));
}
}
Product.java
public class Product {
String name;
boolean selected;
Product(String items, boolean _box) {
name = items;
selected = _box;
}
}
答
你的功能建议立即进行删除d是
void fillData() {
products.add(new Product("1",false));
products.add(new Product("2",false));
products.add(new Product("3",false));
}
+0
我知道发送字符串的作品。这工作。但我的问题是发送'arraylist'包含以前的数据 – Ted
任何异常你得到? – vishalk
那么问题是什么? –
仅显示组合阵列列表的单行 – Ted