Android BaseAdapter
我对安卓系统还不熟悉，所以如果我完全搞砸了，我道歉 在过去的一周里，我一直在玩listview和baseadapter，我一辈子都无法让它工作 我得到的新错误是：Android BaseAdapter,android,baseadapter,Android,Baseadapter,我对安卓系统还不熟悉，所以如果我完全搞砸了，我道歉 在过去的一周里，我一直在玩listview和baseadapter，我一辈子都无法让它工作 我得到的新错误是： 01-26 14:22:03.979: E/AndroidRuntime(3449): FATAL EXCEPTION: main 01-26 14:22:03.979: E/AndroidRuntime(3449): Process: com.example.coreoffice, PID: 3449 01-26 14:22:03
01-26 14:22:03.979: E/AndroidRuntime(3449): FATAL EXCEPTION: main
01-26 14:22:03.979: E/AndroidRuntime(3449): Process: com.example.coreoffice, PID: 3449
01-26 14:22:03.979: E/AndroidRuntime(3449): android.content.res.Resources$NotFoundException: String resource ID #0x1
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.content.res.Resources.getText(Resources.java:244)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.widget.TextView.setText(TextView.java:3888)
01-26 14:22:03.979: E/AndroidRuntime(3449): at com.example.coreoffice.HomeFragment$dataListAdapter.getView(HomeFragment.java:145)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.widget.AbsListView.obtainView(AbsListView.java:2263)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.widget.ListView.measureHeightOfChildren(ListView.java:1263)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.widget.ListView.onMeasure(ListView.java:1175)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.View.measure(View.java:16497)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:719)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:455)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.View.measure(View.java:16497)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.View.measure(View.java:16497)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.View.measure(View.java:16497)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.support.v4.widget.DrawerLayout.onMeasure(DrawerLayout.java:651)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.View.measure(View.java:16497)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.View.measure(View.java:16497)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
01-26 14:22:03.979: E/AndroidRuntime(3449): at com.android.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:327)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.View.measure(View.java:16497)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
01-26 14:22:03.979: E/AndroidRuntime(3449): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2291)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.View.measure(View.java:16497)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1916)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1113)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1295)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1000)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5670)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.Choreographer.doCallbacks(Choreographer.java:574)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.Choreographer.doFrame(Choreographer.java:544)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.os.Handler.handleCallback(Handler.java:733)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.os.Handler.dispatchMessage(Handler.java:95)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.os.Looper.loop(Looper.java:136)
01-26 14:22:03.979: E/AndroidRuntime(3449): at android.app.ActivityThread.main(ActivityThread.java:5017)
01-26 14:22:03.979: E/AndroidRuntime(3449): at java.lang.reflect.Method.invokeNative(Native Method)
01-26 14:22:03.979: E/AndroidRuntime(3449): at java.lang.reflect.Method.invoke(Method.java:515)
01-26 14:22:03.979: E/AndroidRuntime(3449): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
01-26 14:22:03.979: E/AndroidRuntime(3449): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
01-26 14:22:03.979: E/AndroidRuntime(3449): at dalvik.system.NativeStart.main(Native Method)
package com.example.coreoffice;
import android.content.Context;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
public class HomeFragment extends Fragment {
private int jcount = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
displayListView();
TextView t = (TextView) getActivity().findViewById(R.id.header);
t.setText("All Jobs (" + getCount() + ")");
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.list_jobs, container, false);
return view;
}
private void displayListView() {
// Array list of countries
String[] Title = { "Slag Lane", "Slag lane 1", "Street1" };
String[] Address = { "Road street", "Road Street 2", "Road street 3" };
String[] Description = { "Description 1", "Description 2",
"Description 3" };
String[] PostCode = { "wa32ez", "m30oft", "wn24sx" };
int[] JID = { 1, 2, 3 };
setCount(JID.length);
ListView listView = (ListView) getView().findViewById(R.id.listview);
listView.setAdapter(new dataListAdapter(getActivity(), Title, Address,
Description, PostCode, JID));
// enables filtering for the contents of the given ListView
// listView.setTextFilterEnabled(true);
listView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1,
int position, long arg3) {
goToSecondFragment(position);
}
});
}
public int getCount() {
return jcount;
}
public void setCount(int jcount) {
this.jcount = jcount;
}
private void goToSecondFragment(int position) {
Fragment fragment = new PagesFragmentContent();
Bundle bundle = new Bundle();
bundle.putInt("ID", position);
fragment.setArguments(bundle);
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment, "frag2")
.addToBackStack("frag2").commit();
}
class dataListAdapter extends BaseAdapter {
String[] Title, Address, Description, PostCode;
int[] JID;
Context context;
public dataListAdapter(Context context, String[] stTitle,
String[] stAddress, String[] stDescription,
String[] stPostCode, int[] inJID) {
this.context = context;
Title = stTitle;
Address = stAddress;
Description = stDescription;
PostCode = stPostCode;
JID = inJID;
}
public int getCount() {
// TODO Auto-generated method stub
return JID.length;
}
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return null;
}
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public View getView(int position, View view, ViewGroup viewGroup) {
// TODO Auto-generated method stub
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View row = inflater.inflate(R.layout.list_jobs_row, null, false);
TextView title = (TextView) row.findViewById(R.id.title);
TextView address = (TextView) row.findViewById(R.id.address);
TextView description = (TextView) row
.findViewById(R.id.description);
TextView postcode = (TextView) row.findViewById(R.id.postcode);
TextView jid = (TextView) row.findViewById(R.id.jid);
title.setText(Title[position]);
address.setText(Address[position]);
description.setText(Description[position]);
postcode.setText(PostCode[position]);
jid.setText(JID[position]);
return (row);
}
}
}
package com.example.coreoffice；
导入android.content.Context；
导入android.os.Bundle；
导入android.support.v4.app.Fragment；
导入android.support.v4.app.FragmentManager；
导入android.view.LayoutInflater；
导入android.view.view；
导入android.view.ViewGroup；
导入android.widget.AdapterView；
导入android.widget.AdapterView.OnItemClickListener；
导入android.widget.BaseAdapter；
导入android.widget.ListView；
导入android.widget.TextView；
公共类HomeFragment扩展了片段{
私有int jcount=0；
@凌驾
创建时的公共void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
}
@凌驾
已创建ActivityState上的公共无效（Bundle savedInstanceState）{
super.onActivityCreated（savedInstanceState）；
displayListView（）；
TextView t=（TextView）getActivity（）.findViewById（R.id.header）；
t、 setText（“所有作业（“+getCount（）+”））；
}
@凌驾
创建视图上的公共视图（布局、充气机、视图组容器、，
Bundle savedInstanceState）{
视图=充气机。充气（R.layout.list\u作业，容器，错误）；
返回视图；
}
私有void displayListView（）{
//国家列表
字符串[]Title={“渣巷”、“渣巷1”、“街1”}；
字符串[]地址={“Road street”、“Road street 2”、“Road street 3”}；
String[]Description={“Description 1”，“Description 2”，
“说明3”}；
字符串[]邮政编码={“wa32ez”、“m30oft”、“wn24sx”}；
int[]JID={1,2,3}；
设置计数（JID.长度）；
ListView ListView=（ListView）getView（）.findViewById（R.id.ListView）；
setAdapter（新的dataListAdapter（getActivity（）、标题、地址、，
说明、邮政编码、JID）；
//启用对给定ListView内容的筛选
//setTextFilterEnabled（true）；
setOnItemClickListener（新的OnItemClickListener（）{
@凌驾
公共链接（AdapterView arg0、视图arg1、，
整数位置，长arg3）{
Gotosecond片段（位置）；
}
});
}
public int getCount（）{
返回jcount；
}
公共void setCount（int jcount）{
this.jcount=jcount；
}
私有void goToSecondFragment（int位置）{
Fragment Fragment=新页面fragmentcontent（）；
Bundle=新Bundle（）；
bundle.putInt（“ID”，位置）；
fragment.setArguments（bundle）；
FragmentManager FragmentManager=getFragmentManager（）；
fragmentManager.beginTransaction（）
.更换（R.id.frame_容器，碎片，“frag2”）
.addToBackStack（“frag2”）.commit（）；
}
类dataListAdapter扩展了BaseAdapter{
字符串[]标题、地址、说明、邮政编码；
国际[]JID；
语境；
公共dataListAdapter（上下文上下文，字符串[]stTitle，
字符串[]statddress，字符串[]stDescription，
字符串[]stPostCode，int[]inJID）{
this.context=上下文；
Title=stTitle；
地址=stAddress；
Description=stDescription；
邮政编码=stPostCode；
JID=inJID；
}
public int getCount（）{
//TODO自动生成的方法存根
返回JID.length；
}
公共对象getItem（int arg0）{
//TODO自动生成的方法存根
返回null；
}
公共长getItemId（int位置）{
//TODO自动生成的方法存根
返回位置；
}
@凌驾
公共视图getView（内部位置、视图视图、视图组视图组）{
//TODO自动生成的方法存根
LayoutFlater充气器=（LayoutFlater）上下文
.getSystemService（上下文布局\充气机\服务）；
视图行=充气机。充气（R.layout.list\u jobs\u row，null，false）；
TextView title=（TextView）row.findViewById（R.id.title）；
TextView地址=（TextView）row.findViewById（R.id.address）；
TextView说明=（TextView）行
.findViewById（R.id.说明）；
TextView邮编=（TextView）row.findViewById（R.id.postcode）；
TextView jid=（TextView）row.findviewbyd（R.id.jid）；
title.setText（title[职位]）；
address.setText（地址[位置]）；
description.setText（说明[位置]）；
邮政编码.setText（邮政编码[位置]）；
jid.setText（jid[位置]）；
返回（行）；
}
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView android:id="@+id/title"
android:textSize="14sp"
android:textStyle="bold"
android:textColor="#FFFF00"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""/>
<TextView android:id="@+id/address"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""/>
<TextView android:id="@+id/description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""/>
<TextView android:id="@+id/postcode"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""/>
<TextView android:id="@+id/jid"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""/>
</LinearLayout>
上下文未在适配器中初始化。您还需要初始化上下文
public dataListAdapter(Context context, String[] stTitle, String[] stAddress,
String[] stDescription, String[] stPostCode, int[] inJID) {
// other stuff
this.context = context;
}
new dataListAdapter(getActivity(), Title, Address, Description,PostCode, JID)
如果以这种方式提供resourceId，则应将其设置为字符串
jid.setText("" + JID[position]);
请执行以下操作：
public dataListAdapter(String[] stTitle, String[] stAddress,
String[] stDescription, String[] stPostCode, int[] inJID , Context context) {
this.context=context;
....
}
并在getView方法中执行以下操作：
View row = inflater.inflate(R.layout.list_jobs_row, null,
false);
jid.setText(JID[position]+"");
然后执行以下操作：
View row = inflater.inflate(R.layout.list_jobs_row, null,
false);
jid.setText(JID[position]+"");
希望对您有所帮助。请告诉我HomeFragmentpostlist\u jobs\u row.xml
的第137行代码是什么？基本适配器的alsowhy getItem（）返回null？TextView postcode=（TextView）row.findViewById（R.id.postcode）；邮政编码为空。发邮件谢谢大家的回复。我按照你的建议更新了代码，但仍然没有什么乐趣：（我更新了我原来的Post中的代码新的logcat Please只是出于兴趣为什么这样做？jid是一个只接受字符串的文本视图，jid数组不是字符串，所以我只是在它的值中添加了“”，这样它就变成了