这是类的代码片段
public class CenterFragment extends Fragment implements OnClickListener{
private ListView lv_order;//订单列表
private List<Map<String, Object>> orderMessage;//订单列表数据源
private SimpleAdapter myAdapter;
private TextView title_name, title_ico;//订单头布局
private ImageView iv_dish;//订单内容布局
private RelativeLayout order_title;
private LinearLayout order_detail;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.centerfragment, container, false);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
initView();//初始化控件
initOrder();//数据源
myAdapter = new SimpleAdapter(this.getActivity(), orderMessage,
R.layout.oder_item, new String[] { "name", "icon", "price" },
new int[] { R.id.title_name, R.id.iv_dish, R.id.order_price });
lv_order.setAdapter(myAdapter);
}
/*
* 初始化控件
*/
private void initView() {
lv_order = (ListView) getActivity().findViewById(R.id.lv_order);
System.out.println(lv_order);
System.out.println("===================");
title_name = (TextView) getActivity().findViewById(R.id.title_name);
System.out.println(title_name);
title_ico = (TextView) getActivity().findViewById(R.id.title_ico);
iv_dish = (ImageView) getActivity().findViewById(R.id.iv_dish);
//设置监听
title_name.setOnClickListener(this);
title_ico.setOnClickListener(this);
iv_dish.setOnClickListener(this);
}
这是布局代码
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="120dp"
android:orientation="vertical" >
<RelativeLayout
android:id="@+id/order_title"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="2"
android:padding="5dp"
android:gravity="center">
<TextView
android:id="@+id/title_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:textSize="14sp"
android:textColor="@color/text_color"
android:text="肯打鸡"/>
<TextView
android:id="@+id/title_ico"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="@id/title_name"
android:layout_marginLeft="20dp"
android:background="@drawable/paycommon__ic_global_arrow_right"/>
<TextView
android:id="@+id/order_state"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_marginRight="10dp"
android:textSize="12sp"
android:textColor="@color/text_color"
android:text="订单正在处理" />
<TextView
android:layout_width="match_parent"
android:layout_height="2dp"
android:layout_alignParentBottom="true"
android:layout_alignBottom="@id/title_name"
android:background="#22000000"/>
</RelativeLayout>
<LinearLayout
android:id="@+id/order_detail"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="5"
android:padding="5dp"
android:gravity="center_vertical"
android:orientation="horizontal">
<ImageView
android:id="@+id/iv_dish"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_marginLeft="10dp"
android:background="@drawable/takeout_ic_order_empty"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:orientation="vertical">
<TextView
android:id="@+id/order_price"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#ff0000"
android:text="$9.8"/>
<TextView
android:id="@+id/order_take_time"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="10sp"
android:textColor="@color/text_color"
android:text="09-11 11:36"/>
<TextView
android:id="@+id/order_synopsis"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="10sp"
android:textColor="@color/text_color"
android:text="由肯打鸡提供外卖和配送服务"/>
</LinearLayout>
</LinearLayout>
</LinearLayout>
lv_order = (ListView) getActivity().findViewById(R.id.lv_order);
System.out.println(lv_order);
title_name = (TextView) getActivity().findViewById(R.id.title_name);
System.out.println(title_name);
title_ico = (TextView) getActivity().findViewById(R.id.title_ico);
iv_dish = (ImageView) getActivity().findViewById(R.id.iv_dish);
lv_order可以初始化,后面的打印为空,设置不了监听
请问这是怎么回事??