我如何設置繪製到ListView Android

我正在爲android 1.5編寫一個應用程序。我想使用複雜的列表視圖來顯示我的數據。我想在我的List項目中顯示一個可繪製對象的ImageView。我如何設置繪製到ListView Android

我從一個演示瞭解到：

------> listData.put("Img", listData.put("Img", R.drawable.XXX)); 
listData.put("Time", "100"); 
listItems.add(listData);

它可以正確顯示，但是，我想在運行時更改圖，在運行時可能產生的圖像，所以我改變了代碼如下，但它跌下。任何人都可以幫助我嗎？非常感謝！

protected void onCreate(Bundle savedInstanceState) { 
    // TODO Auto-generated method stub 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.item_list); 
    itemListView = (ListView) findViewById(R.id.listview); 
    ArrayList<HashMap<String, Object>> listItems = new ArrayList<HashMap<String, Object>>(); 
    for(int i = 0;i <XXX.size(); ++i) { 
     HashMap<String, Object> listData = new HashMap<String, Object>(); 
--------->/*1)*/ listData.put("Img", new Drawable(XXX)); 
     /*2)*/ listData.put("Time", "100"); 
     /*3)*/ listItems.add(listData); 
    } 
    SimpleAdapter listItemAdapter = new SimpleAdapter(this, listItems, R.layout.listitem, new String[] { "Img", "Time"}, new int[] { R.id.listitem_img, R.id.listitem_time }); 
    itemListView.setAdapter(listItemAdapter); 
}

listitem.xml

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout 
    android:layout_width="fill_parent" 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_height="wrap_content" 
    android:paddingBottom="4dip" 
    android:paddingLeft="12dip" 
    android:paddingRight="12dip"> 

    <ImageView 
     android:id="@+id/listitem_img" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:paddingTop="12dip"/> 

    <TextView 
     android:id="@+id/listitem_time" 
     android:layout_height="wrap_content" 
     android:layout_width="wrap_content" 
     android:textSize="20dip" /> 

</LinearLayout>

來源

2010-04-18 sxingfeng

試試這個，它幫助我。

public class AndroidList extends ListActivity { 

public class MyCustomAdapter extends ArrayAdapter<String> { 

public MyCustomAdapter(Context context, int textViewResourceId, 
    String[] objects) { 
    super(context, textViewResourceId, objects); 
    // TODO Auto-generated constructor stub 
} 

@Override 
public View getView(int position, View convertView, ViewGroup parent) { 
    // TODO Auto-generated method stub 
    //return super.getView(position, convertView, parent); 

    View row = convertView; 

    if(row==null){ 
    LayoutInflater inflater=getLayoutInflater(); 
    row=inflater.inflate(R.layout.row, parent, false); 
    } 

    TextView label=(TextView)row.findViewById(R.id.weekofday); 
    label.setText(month[position]); 
    ImageView icon=(ImageView)row.findViewById(R.id.icon); 

    if (month[position]=="December"){ 
    icon.setImageResource(R.drawable.icon); 
    } 
    else{ 
    icon.setImageResource(R.drawable.icongray); 
    } 

    return row; 
} 
} 

String[] month = { 
    "January", "February", "March", "April", 
    "May", "June", "July", "August", 
    "September", "October", "November", "December" 
    }; 

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     //setContentView(R.layout.main); 
     /*setListAdapter(new ArrayAdapter<String>(this, 
     R.layout.row, R.id.weekofday, DayOfWeek));*/ 
     setListAdapter(new MyCustomAdapter(AndroidList.this, R.layout.row, month)); 
    } 

@Override 
protected void onListItemClick(ListView l, View v, int position, long id) { 
// TODO Auto-generated method stub 
//super.onListItemClick(l, v, position, id); 
String selection = l.getItemAtPosition(position).toString(); 
Toast.makeText(this, selection, Toast.LENGTH_LONG).show(); 
} 

}

在這裏找到：http://android-er.blogspot.com/2010/06/using-convertview-in-getview-to-make.html

來源

2010-07-05 18:10:45 thpoul

我如何設置繪製到ListView Android

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