我有一个使用ListFragment显示所有者列表的类。当用户点击所有者时，它应该用一个列出所有者汽车的新片段替换底部片段。问题是，即使我为它创建了一个视图，它仍然会抛出异常找不到id 0x7f090013 的视图。我在这里做错了什么？
//这是我要调用的onListItemClick替换另一个片段（完整代码将在最后发布。）
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
// TODO Auto-generated method stub
//super.onListItemClick(l, v, position, id);
int search = 0;
Owner a = (Owner) getListView().getItemAtPosition(position);
String name = a.getFirstName();
String lName = a.getLastName();
String Id = a.getCarId();
FragmentManager mFragment = getChildFragmentManager();
FragmentTransaction ft = mFragment.beginTransaction();
CarDetail cDetail = new CarDetail();
cDetail.SearchParameters(Integer.parseInt(Id));
ft.replace(R.id.fCarDetail, cDetail);
ft.addToBackStack(null);
ft.commit();
}
//这是汽车细节碎片
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class CarDetail extends ListFragment {
private ListView lCars;
private ArrayList<Car> listCar = new ArrayList<Car>();
private CarAdapter carAdapter;
private int carId = 0;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v1 = inflater.inflate(R.layout.customize_layout,container,false);
lCars = (ListView) v1.findViewById(android.R.id.list);
return v1;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
lCars.setAdapter(carAdapter);
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
carAdapter = new CarAdapter(getActivity(), R.layout.car_detail, listCar);
if(carId > 0)
{
new CarAsyncTask(carId).execute();
//As soon as it done with the on create, it throw the exception.
}
}
public void SearchParameters(int id) {
carId = id;
}
private class CarAsyncTask extends AsyncTask<Integer, Void, List<Car>> {
public int id =0;
public CarAsyncTask(int carId) {
id = carId;
}
@Override
protected List<Car> doInBackground(Integer... params) {
//List<Car> item = null;
List<Car> item = new ArrayList<Car>();
item.add(new Car("Chevy","Caprice","2002", 1));
item.add(new Car("Chevy","Malibu","2014", 2));
item.add(new Car("Dodge","Stratus","2002", 3));
item.add(new Car("Saturn","L300","2004", 4));
return item;
}
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
listCar.clear();
carAdapter.clear();
}
@Override
protected void onPostExecute(List<Car> result) {
super.onPostExecute(result);
for(Car c: result)
{
if(c.getID() == carId)
{
carAdapter.add(c);
carAdapter.notifyDataSetChanged();
}
}
}
}
}
// car_detail.xml
<?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="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/tvMake"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="test" />
<TextView
android:id="@+id/tvModel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="make" />
<TextView
android:id="@+id/tvYear"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="year" />
<TextView
android:id="@+id/tvID"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ID" />
</LinearLayout>
//the customize layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="8dp"
android:paddingRight="8dp">
<ListView android:id="@id/android:list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#FFFF00"
android:drawSelectorOnTop="false"/>
<TextView android:id="@id/android:empty"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FF00FF"
android:text="No data"/>
</LinearLayout>
Exception:
08-22 21:00:21.051: E/AndroidRuntime(907): FATAL EXCEPTION: main
08-22 21:00:21.051: E/AndroidRuntime(907): java.lang.IllegalArgumentException: No view found for id 0x7f090013 (com.mb.carlovers:id/fCarDetail) for fragment CarDetail{40d97200 #0 id=0x7f090013}
08-22 21:00:21.051: E/AndroidRuntime(907): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:919)
08-22 21:00:21.051: E/AndroidRuntime(907): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104)
08-22 21:00:21.051: E/AndroidRuntime(907): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
08-22 21:00:21.051: E/AndroidRuntime(907): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1460)
08-22 21:00:21.051: E/AndroidRuntime(907): at android.support.v4.app.FragmentManagerImpl$1.run(FragmentManager.java:440)
08-22 21:00:21.051: E/AndroidRuntime(907): at android.os.Handler.handleCallback(Handler.java:725)
08-22 21:00:21.051: E/AndroidRuntime(907): at android.os.Handler.dispatchMessage(Handler.java:92)
08-22 21:00:21.051: E/AndroidRuntime(907): at android.os.Looper.loop(Looper.java:137)
08-22 21:00:21.051: E/AndroidRuntime(907): at android.app.ActivityThread.main(ActivityThread.java:5041)
08-22 21:00:21.051: E/AndroidRuntime(907): at java.lang.reflect.Method.invokeNative(Native Method)
08-22 21:00:21.051: E/AndroidRuntime(907): at java.lang.reflect.Method.invoke(Method.java:511)
08-22 21:00:21.051: E/AndroidRuntime(907): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
08-22 21:00:21.051: E/AndroidRuntime(907): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
08-22 21:00:21.051: E/AndroidRuntime(907): at dalvik.system.NativeStart.main(Native Method)
08-22 21:00:21.172: W/ActivityManager(290): Force finishing activity com.mb.carlovers/.People
08-22 21:00:21.231: W/WindowManager(290): Failure taking screenshot for (237x148) to layer 21015
08-22 21:00:21.631: E/SurfaceFlinger(37): ro.sf.lcd_density must be defined as a build property
08-22 21:00:21.751: W/ActivityManager(290): Activity pause timeout for ActivityRecord{40f05be8 u0 com.mb.carlovers/.People}
08-22 21:00:21.821: D/dalvikvm(290): GC_CONCURRENT freed 752K, 18% free 5916K/7192K, paused 74ms+104ms, total 515ms
08-22 21:00:31.265: W/ActivityManager(290): Launch timeout has expired, giving up
//以下是OwnerDetail代码
package com.mb.carlovers;
import java.util.ArrayList;
import java.util.List;
import com.mb.carlovers.adapter.OwnerAdapter;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.app.ListFragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
public class OwnerDetail extends ListFragment {
private ListView mListView;
private ArrayList<Owner> listItem = new ArrayList<Owner>();
private OwnerAdapter ownerAdapter;
private String[] searchParameter = null;
public void SearchParameters(String[] parameters)
{
searchParameter = parameters;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
View v1 = inflater.inflate(R.layout.customize_layout,container, false);
mListView = (ListView) v1.findViewById(android.R.id.list);
return v1;
}
@Override
public void onActivityCreated(Bundle savedInstanceState)
{
super.onActivityCreated(savedInstanceState);
mListView.setAdapter(ownerAdapter);
// ownerAdapter.notifyDataSetChanged();
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ownerAdapter = new OwnerAdapter(getActivity(), R.layout.owner_detail, listItem);
if(!(searchParameter == null))
{
//ownerAdapter.clear();
// ownerAdapter.addAll(listItem);
new OnwerAsyncTask().execute();
//ownerAdapter.notifyDataSetChanged();
}
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
// TODO Auto-generated method stub
//super.onListItemClick(l, v, position, id);
int search = 0;
Owner a = (Owner) getListView().getItemAtPosition(position);
String name = a.getFirstName();
String lName = a.getLastName();
String Id = a.getCarId();
FragmentManager mFragment = getChildFragmentManager();
FragmentTransaction ft = mFragment.beginTransaction();
CarDetail cDetail = new CarDetail();
cDetail.SearchParameters(Integer.parseInt(Id));
ft.replace(R.id.fCarDetail, cDetail);
ft.addToBackStack(null);
ft.commit();
}
private class OnwerAsyncTask extends AsyncTask<Void, Void, List<Owner>> {
@Override
protected List<Owner> doInBackground(Void... params) {
ArrayList<Owner> listItemLocal = new ArrayList<Owner>();
try
{
Owner items = new Owner();
items.setFirstName("John");
items.setLastName("Smith");
items.setCarId("1");
listItemLocal.add(items);
Owner item1 = new Owner();
item1.setFirstName("Samantha");
item1.setLastName("Right");
item1.setCarId("2");
listItemLocal.add(item1);
Owner item2 = new Owner();
item2.setFirstName("Regie");
item2.setLastName("Miller");
item2.setCarId("3");
listItemLocal.add(item2);
Owner item3 = new Owner();
item3.setFirstName("Mark");
item3.setLastName("Adam");
item3.setCarId("4");
listItemLocal.add(item3);
} catch(Exception ex)
{
ex.toString();
}
return listItemLocal;
}
@Override
protected void onPreExecute() {
listItem.clear();
ownerAdapter.clear();
super.onPreExecute();
}
@Override
protected void onPostExecute(List<Owner> result) {
/*OwnerDetail fragment = (OwnerDetail) mActivity.getSupportFragmentManager().findFragmentById(R.id.fOwnerDetail);
fragment.SetAdapter(result);*/
listItem = (ArrayList<Owner>) result;
super.onPostExecute(result);
if(listItem.size() > 0)
{
ownerAdapter.clear();
ownerAdapter.addAll(listItem);
ownerAdapter.notifyDataSetChanged();
Log.i("Testing", "Added " + result.size() + "items to adapter.");
}
}
}
}
答案 0 :(得分：0)
一遍又一遍地调试应用程序后，我终于找到了问题。在汽车类中，carId被声明为整数;但是，我调用set ID传递一个整数而不将其转换为CarAdapter中的字符串。我将ID更改为字符串，然后在进行Id比较之前将其转换回整数。有用。
//the piece of code below was causing the issue.
holder.tvId.setText(item.getID());