ListAdapter - SimpleAdapter白衣一類是如何讓

Question

我有類配方的列表：

List<Recipe> recipeList = new ArrayList<Recipe>(); 

和類絲毫屬性基礎知識：

public class Recipe { 
     public int id; 
     public String name; 
     public String time; 
... 

林試圖把這個SimpleAdapter而Android工作室acuses錯誤當我這樣做：

ListAdapter listAdapter = new SimpleAdapter(
ResultActivity.this, 
recipeList,R.layout.list_item, 
new String[] {"id","name","time"}, 
new int[] { R.id.id,R.id.name,R.id.time } 
        ); 

我看到一些例子轉換這在地圖中，但有多麼使直接惠特級如何參數，多謝這節省我的一天。

Answer 1

創建數據映射是這樣的：

ArrayList<Map<String, String>> mapData = 
     new ArrayList<Map<String, String>>(); 

    for (Recipe recipe : recipeList) { 

     HashMap<String, String> map = new HashMap<String, String>(); 

     map.put("id", String.valueOf(recipe.id)); 
     map.put("name", recipe.name); 
     map.put("time", recipe.time); 

     mapData.add(map); 

    } 

，這應該工作：

ListAdapter listAdapter = new SimpleAdapter(ResultActivity.this, mapData, 
     R.layout.list_item, new String[] { "id", "name", "time" }, 
     new int[] { R.id.id, R.id.name, R.id.time });