Question

android中spinner怎样绑定数据

Answer 1

/** * * 重写ArrayAdapter * */ public class SpinnerAdapter extends ArrayAdapter<Product> { private int resourceId; public SpinnerAdapter(Context context, int textViewResourceId, List<Product> objects) { super(context, textViewResourceId, objects); this.resourceId = textViewResourceId; } public View getView(int position, View convertView, ViewGroup parent) { Product prod = getItem(position); LinearLayout userListItem = new LinearLayout(getContext()); TextView tv1 = new TextView(getContext()); TextView tv2 = new TextView(getContext()); // 判断 if (prod instanceof Prod_Level2) { tv1.setText(String.valueOf(((Prod_Level2) prod) .getProd_Level2_Cd())); tv2.setText(((Prod_Level2) prod).getProd_Level2_NM()); } else if (prod instanceof Prod_Level3) { tv1.setText(((Prod_Level3) prod).getProd_Level3_Cd() + ""); tv2.setText(((Prod_Level3) prod).getProd_Level3_NM()); } else if (prod instanceof Prod_Level4) { tv1.setText(((Prod_Level4) prod).getProd_Level4_Cd() + "团核"); tv2.setText(((Prod_Level4) prod).getProd_Level4_NM()); } else if (prod instanceof Producted_Type) { tv1.setText(((Producted_Type) prod).getProducted_Type_Cd() + ""); tv2.setText(((Producted_Type) prod).getProducted_Type_NM()); } tv1.setVisibility(View.GONE); userListItem.addView(tv1); tv2.setTextSize(20); tv2.setTextColor(Color.BLACK); userListItem.addView(tv2); return userListItem; } } /** * spinner的加载 * * @param list * :要加载的数据源 * @param sp * ：加载控件和穗 * @param context * ：activity */塌棚掘 public void loadSpinner(List<Product> list, Spinner sp, Context context) { SpinnerAdapter adapter = new SpinnerAdapter(context, android.R.layout.simple_spinner_item, list); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); sp.setAdapter(adapter); }