问题与ListFragment显示数据 [英] Issue with ListFragment Displaying Data
问题描述
我有一个显示使用ListFragment所有者列表的类。当用户在一个雇主点击时,它应该用新的片段,其将列出所有者的车更换底部片段。问题是,它不停抛出一个异常的发现ID 0x7f090013 否观点,即使我创建了来看。我在做什么错在这里?
//这是 onListItemClick
我在哪里打电话来取代其他片段(满code将在年底公布。)
@覆盖
公共无效onListItemClick(ListView中升,视图V,INT位置,长的id){
// TODO自动生成方法存根
//super.onListItemClick(l,V,位置,ID);
INT搜索= 0;
所有者=(所有者)getListView()getItemAtPosition(位置)。
字符串名称= a.getFirstName();
字符串LNAME = a.getLastName();
字符串ID = a.getCarId(); FragmentManager mFragment = getChildFragmentManager();
FragmentTransaction英尺= mFragment.beginTransaction();
CarDetail cDetail =新CarDetail();
cDetail.SearchParameters(的Integer.parseInt(ID));
ft.replace(R.id.fCarDetail,cDetail);
ft.addToBackStack(NULL);
ft.commit();
}
//这是该车详细片段
进口android.os.AsyncTask;
进口android.os.Bundle;
进口android.support.v4.app.ListFragment;
进口android.view.LayoutInflater;
进口android.view.View;
进口android.view.ViewGroup;
进口android.widget.ArrayAdapter;
进口android.widget.ListView;公共类CarDetail扩展ListFragment {
私人的ListView LCARS;
私人的ArrayList<汽车> listCar =新的ArrayList<汽车>();
私人CarAdapter carAdapter;
私人INT carId = 0; @覆盖
公共查看onCreateView(LayoutInflater充气器,容器的ViewGroup,捆绑savedInstanceState){
查看V1 = inflater.inflate(R.layout.customize_layout,集装箱,FALSE);
LCARS =(ListView控件)v1.findViewById(android.R.id.list);
返回V1;
} @覆盖
公共无效onActivityCreated(捆绑savedInstanceState){
super.onActivityCreated(savedInstanceState);
lCars.setAdapter(carAdapter);
} @覆盖
公共无效的onCreate(捆绑savedInstanceState){
super.onCreate(savedInstanceState);
carAdapter =新CarAdapter(getActivity(),R.layout.car_detail,listCar);
如果(carId大于0)
{
新CarAsyncTask(carId).execute();
//只要它与上完成创建,它抛出异常。
}
} 公共无效SearchParameters(INT ID){
carId = ID;
}
私有类CarAsyncTask扩展的AsyncTask<整数,太虚,列表与LT;汽车>> {
公众诠释的id = 0;
公共CarAsyncTask(INT carId){
ID = carId;
} @覆盖
保护列表与LT;汽车> doInBackground(整数... PARAMS){
//列表<汽车>项目= NULL;
清单<汽车>项目=新的ArrayList<汽车>();
item.add(新车(雪佛兰,随想,2002,1));
item.add(新车(雪佛兰,名仕,2014,2));
item.add(新车(道奇,层云,2002,3));
item.add(新车(土星,L300,2004,4)); 归还物品;
} @覆盖
在preExecute保护无效(){
// TODO自动生成方法存根
super.on preExecute();
listCar.clear();
carAdapter.clear(); } @覆盖
保护无效onPostExecute(列表<汽车>的结果){
super.onPostExecute(结果);
对于(车载C:结果)
{
如果(c.getID()== carId)
{
carAdapter.add(C);
carAdapter.notifyDataSetChanged();
}
}
} }}
// car_detail.xml
<?XML版本=1.0编码=UTF-8&GT?;
< LinearLayout中的xmlns:机器人=http://schemas.android.com/apk/res/android
机器人:layout_width =match_parent
机器人:layout_height =match_parent
机器人:方向=垂直> <的TextView
机器人:ID =@ + ID / tvMake
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT
机器人:文字=测试/> <的TextView
机器人:ID =@ + ID / tvModel
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT
机器人:文字=使/> <的TextView
机器人:ID =@ + ID / tvYear
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT
机器人:文字=年/> <的TextView
机器人:ID =@ + ID / TVID
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT
机器人:文字=ID/>< / LinearLayout中>
//自定义布局< XML版本=1.0编码=UTF-8&GT?;
< LinearLayout中的xmlns:机器人=http://schemas.android.com/apk/res/android
机器人:方向=垂直
机器人:layout_width =match_parent
机器人:layout_height =match_parent
机器人:paddingLeft =8DP
机器人:paddingRight =8DP> < ListView的机器人:ID =@ ID /安卓名单
机器人:layout_width =match_parent
机器人:layout_height =match_parent
机器人:layout_weight =1
机器人:背景=#FFFF00
机器人:drawSelectorOnTop =FALSE/> < TextView的机器人:ID =@ ID /安卓空
机器人:layout_width =match_parent
机器人:layout_height =match_parent
机器人:背景=#FF00FF
机器人:文字=无数据/>
< / LinearLayout中>
例外:08-22 21:00:21.051:E / AndroidRuntime(907):致命异常:主要
08-22 21:00:21.051:E / AndroidRuntime(907):java.lang.IllegalArgumentException异常:(com.mb.carlovers:ID / fCarDetail)未找到ID 0x7f090013鉴于片段CarDetail {40d97200#0 ID = 0x7f090013}
08-22 21:00:21.051:E / AndroidRuntime(907):在android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:919)
08-22 21:00:21.051:E / AndroidRuntime(907):在android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1104)
08-22 21:00:21.051:E / AndroidRuntime(907):在android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
08-22 21:00:21.051:E / AndroidRuntime(907):在android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1460)
08-22 21:00:21.051:E / AndroidRuntime(907):在android.support.v4.app.FragmentManagerImpl $ 1.run(FragmentManager.java:440)
08-22 21:00:21.051:E / AndroidRuntime(907):在android.os.Handler.handleCallback(Handler.java:725)
08-22 21:00:21.051:E / AndroidRuntime(907):在android.os.Handler.dispatchMessage(Handler.java:92)
08-22 21:00:21.051:E / AndroidRuntime(907):在android.os.Looper.loop(Looper.java:137)
08-22 21:00:21.051:E / AndroidRuntime(907):在android.app.ActivityThread.main(ActivityThread.java:5041)
08-22 21:00:21.051:E / AndroidRuntime(907):在java.lang.reflect.Method.invokeNative(本机方法)
08-22 21:00:21.051:E / AndroidRuntime(907):在java.lang.reflect.Method.invoke(Method.java:511)
08-22 21:00:21.051:E / AndroidRuntime(907):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:793)
08-22 21:00:21.051:E / AndroidRuntime(907):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
08-22 21:00:21.051:E / AndroidRuntime(907):在dalvik.system.NativeStart.main(本机方法)
08-22 21:00:21.172:W / ActivityManager(290):强制完成活动com.mb.carlovers /。人
08-22 21:00:21.231:W /窗口管理器(290):未能采取截图为(237x148)到层21015
08-22 21:00:21.631:E / SurfaceFlinger的(37):ro.sf.lcd_density必须定义为构建属性
08-22 21:00:21.751:W / ActivityManager(290):为ActivityRecord活动暂停超时{40f05be8 U0 com.mb.carlovers /。人们}
08-22 21:00:21.821:D / dalvikvm(290):GC_CONCURRENT释放752K,18%免费5916K / 7192K,暂停74ms + 104ms,515ms总
08-22 21:00:31.265:W / ActivityManager(290):启动超时已过期,放弃
//下面是OwnerDetail code
包com.mb.carlovers;
进口的java.util.ArrayList;
进口的java.util.List;进口com.mb.carlovers.adapter.OwnerAdapter;进口android.os.AsyncTask;
进口android.os.Bundle;
进口android.support.v4.app.FragmentManager;
进口android.support.v4.app.FragmentTransaction;
进口android.support.v4.app.ListFragment;
进口android.util.Log;
进口android.view.LayoutInflater;
进口android.view.View;
进口android.view.ViewGroup;
进口android.widget.ListView;公共类OwnerDetail扩展ListFragment {
私人的ListView mListView;
私人的ArrayList<拥有者GT;的listItem =新的ArrayList<拥有者GT;();
私人OwnerAdapter ownerAdapter;
私有String [] searchParameter = NULL; 公共无效SearchParameters(字符串[]参数)
{
searchParameter =参数;
} @覆盖
公共查看onCreateView(LayoutInflater充气器,容器的ViewGroup,捆绑savedInstanceState){
查看V1 = inflater.inflate(R.layout.customize_layout,集装箱,FALSE);
mListView =(ListView控件)v1.findViewById(android.R.id.list);
返回V1;
} @覆盖
公共无效onActivityCreated(捆绑savedInstanceState)
{
super.onActivityCreated(savedInstanceState);
mListView.setAdapter(ownerAdapter);
// ownerAdapter.notifyDataSetChanged();
} @覆盖
公共无效的onCreate(捆绑savedInstanceState){
super.onCreate(savedInstanceState);
ownerAdapter =新OwnerAdapter(getActivity(),R.layout.owner_detail,的listItem);
如果(!(searchParameter == NULL))
{
//ownerAdapter.clear();
// ownerAdapter.addAll(的listItem);
新OnwerAsyncTask()执行();
//ownerAdapter.notifyDataSetChanged();
}
} @覆盖
公共无效onListItemClick(ListView中升,视图V,INT位置,长的id){
// TODO自动生成方法存根
//super.onListItemClick(l,V,位置,ID);
INT搜索= 0;
所有者=(所有者)getListView()getItemAtPosition(位置)。
字符串名称= a.getFirstName();
字符串LNAME = a.getLastName();
字符串ID = a.getCarId(); FragmentManager mFragment = getChildFragmentManager();
FragmentTransaction英尺= mFragment.beginTransaction();
CarDetail cDetail =新CarDetail();
cDetail.SearchParameters(的Integer.parseInt(ID));
ft.replace(R.id.fCarDetail,cDetail);
ft.addToBackStack(NULL);
ft.commit();
}
私有类OnwerAsyncTask扩展的AsyncTask<太虚,太虚,列表与LT;所有者>> {
@覆盖
保护列表与LT;所有者> doInBackground(虚空...... PARAMS){
ArrayList的<拥有者GT; listItemLocal =新的ArrayList<拥有者GT;();
尝试
{
业主的项目=新主人();
items.setFirstName(约翰);
items.setLastName(史密斯);
items.setCarId(1);
listItemLocal.add(项目); 业主ITEM1 =新用户();
item1.setFirstName(萨曼莎);
item1.setLastName(右);
item1.setCarId(2);
listItemLocal.add(ITEM1); 业主ITEM2 =新用户();
item2.setFirstName(REGIE);
item2.setLastName(米勒);
item2.setCarId(3);
listItemLocal.add(ITEM2); 业主项目3 =新主人();
item3.setFirstName(标记);
item3.setLastName(亚当);
item3.setCarId(4);
listItemLocal.add(项目3);
}赶上(异常前)
{
ex.toString();
}
返回listItemLocal;
} @覆盖
在preExecute保护无效(){
listItem.clear();
ownerAdapter.clear();
super.on preExecute();
} @覆盖
保护无效onPostExecute(列表<拥有者GT;的结果){
/ * OwnerDetail片段=(OwnerDetail)mActivity.getSupportFragmentManager()findFragmentById(R.id.fOwnerDetail)。
fragment.SetAdapter(结果); * /
的listItem =(ArrayList的<拥有者GT;)的结果;
super.onPostExecute(结果);
如果(listItem.size()大于0)
{
ownerAdapter.clear();
ownerAdapter.addAll(的listItem);
ownerAdapter.notifyDataSetChanged();
Log.i(测试,添加+ result.size()+项目到适配器。);
}
} }
}
一遍又一遍调试应用程序后,我终于找到了问题。在汽车类中,carId被宣布为一个整数;不过,我称之为传递一个整数集ID无需将其转换为在CarAdapter的字符串。我改变了ID为一个字符串,我将其转换回整我做的ID比较之前。有用。
//这块code下面是导致该问题。
holder.tvId.setText(item.getID());
I have a class that is displaying a list of owner using ListFragment. When a user clicked on an owner, it supposed to replace the bottom fragment with a new fragment that would list the owner’s car. The issue is that it kept throwing an exception No view found for id 0x7f090013 even though I created a view for it. What am I doing wrong here?
//This is the onListItemClick
where I am calling to replace the other fragment (Full code will be posted at the end.)
@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();
}
//This is the car Detail Fragment
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
//Below is the OwnerDetail Code
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.");
}
}
}
}
After debugging the application over and over, I finally found the issue. In the car class, the carId was declared as an integer; however, I call the set ID passing an integer without converting it to a string in the CarAdapter. I changed the ID to a string, and I convert it back to an integer before I do the Id comparison. It works.
//the piece of code below was causing the issue.
holder.tvId.setText(item.getID());
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