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我用這個tutorial來學習如何設置我自己的適配器並用自定義行填充listView。通過自定義適配器在列表視圖的每一行中加載不同圖像
現在即時嘗試使用適配器在每一行中獲取不同的圖像(image1,image2等)。 任何人都可以提供給我一個提示,我必須實現獲取圖像!?從main.java
片段:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_menu);
m_orders = new ArrayList<Order>();
int r = 0;
this.m_adapter = new OrderAdapter(this, R.layout.row, m_orders);
setListAdapter(this.m_adapter);
viewOrders = new Runnable(){
@Override
public void run() {
getOrders();
}
};
Thread thread = new Thread(null, viewOrders, "MagentoBackground");
thread.start();
private Runnable returnRes = new Runnable() {
@Override
public void run() {
if(m_orders != null && m_orders.size() > 0){
m_adapter.notifyDataSetChanged();
for(int i=0;i<m_orders.size();i++)
m_adapter.add(m_orders.get(i));
}
m_ProgressDialog.dismiss();
m_adapter.notifyDataSetChanged();
}
};
private void getOrders(){
try{
m_orders = new ArrayList<Order>();
Order o1 = new Order();
o1.setOrderName("SF services");
Order o2 = new Order();
o2.setOrderName("SF Advertisement");
m_orders.add(o1);
m_orders.add(o2);
Thread.sleep(2000);
Log.i("ARRAY", ""+ m_orders.size());
} catch (Exception e) {
Log.e("BACKGROUND_PROC", e.getMessage());
}
runOnUiThread(returnRes);
}
private class OrderAdapter extends ArrayAdapter<Order> {
private ArrayList<Order> items;
public OrderAdapter(Context context, int textViewResourceId, ArrayList<Order> items) {
super(context, textViewResourceId, items);
this.items = items;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null) {
LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.row, null);
}
Order o = items.get(position);
if (o != null) {
TextView tt = (TextView) v.findViewById(R.id.toptext);
if (tt != null) {
tt.setText("Name: "+o.getOrderName()); }
}
return v;
}
和row.xml:
<?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="?android:attr/listPreferredItemHeight"
android:padding="6dip">
<ImageView
android:id="@+id/icon"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_marginRight="6dip" />
<LinearLayout
android:orientation="vertical"
android:layout_width="0dip"
android:layout_weight="1"
android:layout_height="fill_parent">
<TextView
android:id="@+id/toptext"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1"
android:gravity="center_vertical"
/>
</LinearLayout>
Thx提前。我認爲它不難找到答案。但我是一個新秀,結果迷失了一下:(
lazy-list看起來很整齊,但是我想要實現的是一步。我只是想教我的適配器如何從資源文件夾中繪製不同的.png。裏面的getView,但LayoutInflater混淆了我到目前爲止:/ – bofredo 2013-02-20 13:38:22
嗨嘗試本教程...如果你無法理解它......不介意問我..我會在那裏爲你.... http ://www.javasr ilankansupport.com/2012/05/android-listview-example-with-image-and.html – Pragnani 2013-02-20 15:11:39
感謝您的幫助!我公司的android開發人員明天會回來,所以我可以問他如何優化我的代碼。它現在正在運行,但我不認爲它應該是/應該是;) – bofredo 2013-02-20 16:06:27