我的活动扩展了ListActivity。这就是我将列表设置为适配器的方式：
this.setListAdapter(new ArrayAdapter<String>(
this, R.layout.imgTxtView,
R.id.items,retrievedTasks));
RetrivedTasks是存储在共享pref。
中的任务/项目的字符串我在线性布局中有这个列表
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ListView
android:id="@android:id/list"
android:layout_height="wrap_content"
android:layout_width="match_parent">
</ListView>
</LinearLayout>
这是另一个线性布局（imgTxtView），用作List
中的一行 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal" >
<ImageView
android:id="@+id/icon"
android:layout_width="22dp"
android:layout_height="22dp"
android:layout_marginBottom="3dp"
android:layout_marginLeft="5dp"
android:layout_marginRight="20dp"
android:layout_marginTop="5dp"
android:src="@drawable/star" />
<TextView
android:id="@+id/Itemname"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="17sp"
android:paddingTop="5dp"/>
</LinearLayout>
这个想法是当您单击图像将更改的图像和TextView项目的背景时。
所有解决方案都谈论自定义适配器。
现在，有没有办法在没有使用的情况下实现这一目标？
EDIT。一段代码我在尝试atm。
ImageView theStar = (ImageView) findViewById(R.id.icon);
theStar.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
View parentRow = (View) v.getParent();
ListView listView = (ListView) parentRow.getParent();
final int position = listView.getPositionForView(parentRow);
Toast.makeText(getApplicationContext(), "item clicked: "+Integer.toString(position), Toast.LENGTH_LONG).show();
}
});
EDIT_2。现在上传了两个线性布局的完整代码。当ppl发布长行代码时，我讨厌它，我试图避免这种情况。
我知道实现自定义适配器并不困难，但是如果有人设法在不使用它的情况下设法完成此操作，那就很奇怪了。
答案 0 :(得分：0)
我不这么认为。我的理解是这是一个自定义列表视图，您需要使用自定义适配器来访问所有属性。
答案 1 :(得分：0)
package com.exa.Usuario;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.TreeSet;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.ksoap2.serialization.SoapObject;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.SearchManager;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Color;
import android.os.AsyncTask;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SearchView;
import android.widget.SearchView.OnQueryTextListener;
import android.widget.TextView;
import com.app.basedatos.BD_Mundial;
import com.app.basedatos.ConnectionDetector;
import com.app.basedatos.responseJson;
import com.exa.citas.DetalleContacto;
import com.exa.citas.R;
public class Contactos extends Activity implements OnClickListener, OnQueryTextListener {
public class AtributosContactos {
String nombre,apellido,correo,telefono;
String idContacto,Separador;
}
ListView list_contactos;
SearchView search_contact;
private CodeLearnAdapter chapterListAdapter;
BD_Mundial adb = new BD_Mundial(this);
SQLiteDatabase db;
String idUsu;
SharedPreferences.Editor editor;
SharedPreferences prefs;
Boolean isInternetPresent = false;
ConnectionDetector cd;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_usuario_contactos);
getActionBar().hide();
header();
prefs = getSharedPreferences("Datos_usuario", Context.MODE_PRIVATE);
idUsu = prefs.getString("idUsu","");
getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN);
}
@Override
protected void onResume(){
super.onResume();
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN);
list_contactos = (ListView) findViewById(R.id.list_contactos);
search_contact = (SearchView) findViewById(R.id.search_contact);
list_contactos.setTextFilterEnabled(true);
new Async_ranking().execute();
setupSearchView();
cd = new ConnectionDetector(getApplicationContext());
isInternetPresent = cd.isConnectingToInternet();
if(isInternetPresent){
SincronizaContactos();
EliminaContactos();
}
list_contactos.setOnItemClickListener(new OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
// TODO Auto-generated method stub
AtributosContactos ch=chapterListAdapter.getCodeLearnChapter(arg2);
if(ch.Separador.equals("0")){
Intent i=new Intent (getApplicationContext(),DetalleContacto.class);
i.putExtra("Nombre", ch.nombre);
i.putExtra("Apellido", ch.apellido);
i.putExtra("Telefono", ch.telefono);
i.putExtra("Correo", ch.correo);
startActivity(i);
//Log.i("ID:", ch.idContacto);
}
}
});
}
private void setupSearchView() {
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
search_contact.setIconifiedByDefault(false);
search_contact.setOnQueryTextListener(this);
search_contact.setSubmitButtonEnabled(false);
search_contact.setQueryHint("Buscar Contactos");
search_contact.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
}
@Override
public boolean onQueryTextChange(String newText) {
// TODO Auto-generated method stub
if (TextUtils.isEmpty(newText)) {
new Async_ranking().execute();;
} else {
//String contacto=newText.replaceAll("\\s", "");
//Log.i("", "Entro"+newText);
chapterListAdapter.filter(newText);
//list_contactos.setFilterText(newText.toString());
}
return true;
}
public void header() {
Button back = (Button) findViewById(R.id.btn_back);
ImageView btn_1 = (ImageView) findViewById(R.id.btn_1);
ImageView btn_2 = (ImageView) findViewById(R.id.btn_2);
TextView txtTitulo = (TextView) findViewById(R.id.txtTitulo);
btn_2.setImageResource(R.drawable.btn_add);
back.setOnClickListener(this);
btn_1.setOnClickListener(this);
btn_2.setOnClickListener(this);
}
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
switch (arg0.getId()) {
case R.id.btn_2:
Intent i = new Intent(getApplicationContext(), AddContacto.class);
startActivity(i);
break;
case R.id.btn_back:
onBackPressed();
break;
}
}
private class Async_ranking extends AsyncTask<String, Void, SoapObject> {
@Override
protected SoapObject doInBackground(String... params) {
chapterListAdapter = new CodeLearnAdapter();
return null;
}
@Override
protected void onPostExecute(SoapObject result) {
list_contactos.setAdapter(chapterListAdapter);
}
@Override
protected void onPreExecute() {
}
@Override
protected void onProgressUpdate(Void... values) {
}
}
public class CodeLearnAdapter extends BaseAdapter {
List<AtributosContactos> codeLeanChapterList = getDataForListView();
private TreeSet<Integer> mSeparatorsSet = new TreeSet<Integer>();
ArrayList<String> mItems = new ArrayList<String>();
@Override
public int getCount() {
// TODO Auto-generated method stub
return codeLeanChapterList.size();
}
@Override
public AtributosContactos getItem(int arg0) {
// TODO Auto-generated method stub
return codeLeanChapterList.get(arg0);
}
@Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
@Override
public View getView(final int arg0, View arg1, ViewGroup arg2) {
if (arg1 == null) {
LayoutInflater inflater = (LayoutInflater) Contactos.this
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
arg1 = inflater.inflate(R.layout.item_contacto, arg2, false);
}
TextView txt_nombre = (TextView) arg1 .findViewById(R.id.txt_nombre);
TextView txt_num = (TextView) arg1 .findViewById(R.id.txt_num);
TextView txt_correo= (TextView) arg1 .findViewById(R.id.txt_correo);
final AtributosContactos ch = codeLeanChapterList.get(arg0);
if(ch.Separador.equals("1")){
txt_num.setVisibility(View.GONE);
txt_correo.setVisibility(View.GONE);
arg1.setBackgroundColor(Color.parseColor("#eaeaea"));
arg1.setSelected(false);
arg1.setEnabled(false);
//arg1.setFocusable(false);
}else {
txt_num.setVisibility(View.VISIBLE);
txt_correo.setVisibility(View.VISIBLE);
arg1.setBackgroundColor(Color.parseColor("#00000000"));
arg1.setSelected(true);
arg1.setEnabled(true);
//arg1.setFocusableInTouchMode(true);
}
txt_nombre.setText(ch.nombre+" "+ch.apellido);
txt_num.setText(ch.telefono);
txt_correo.setText(ch.correo);
// Log.i("Letra1: " +arg0,"Valor separador "+ch.Separador);
return arg1;
}
/**
*
* @param contacto
*
* Filtra la lista de contactos aqui se hace toda la búsqueda... Soy una Pipi! :3 ajaja
*/
public void filter(String contacto) {
contacto = contacto.toLowerCase(Locale.getDefault());
contacto= (contacto );
codeLeanChapterList.clear();
if (contacto.length() == 0) {
codeLeanChapterList = getDataForListView();
} else {
for (AtributosContactos wp : getDataForListView()) {
String nombreContacto=wp.nombre+" "+wp.apellido;
//Busca por nombre y apellido
if (nombreContacto.toLowerCase(Locale.getDefault()).contains( contacto) ) {
codeLeanChapterList.add(wp);
}else/**Busca por correo */
if (wp.correo.toLowerCase(Locale.getDefault()).contains( contacto) ) {
codeLeanChapterList.add(wp);
}else /**Busca por telefono */
if (wp.telefono.toLowerCase(Locale.getDefault()).contains( contacto) ) {
codeLeanChapterList.add(wp);
}
}
list_contactos.setAdapter(chapterListAdapter);
}
}
public AtributosContactos getCodeLearnChapter(int position) {
return codeLeanChapterList.get(position);
}
}
@SuppressLint("DefaultLocale")
public List<AtributosContactos> getDataForListView() {
final List<AtributosContactos> codeLeanChaptersList = new ArrayList<AtributosContactos>();
SQLiteDatabase db = adb.openDatabase();
Cursor mCursor = db.rawQuery( "SELECT idContacto, nombre,apellido,correo,telefono FROM tblContacto"
+ " where borrado=0 order by nombre COLLATE BINARY COLLATE NOCASE", null);
ArrayList<String> Header = new ArrayList<String>();
if (mCursor.moveToFirst()) {
do {
AtributosContactos chapter = new AtributosContactos();
AtributosContactos ch = new AtributosContactos();
String letra = mCursor.getString(1).substring(0, 1);
String c = letra.toUpperCase();
if (Header.size() > 0) {
int cont = 0;
for (int i = 0; i < Header.size(); i++) {
if (Header.get(i).equals(c)) {
cont++;
}
}
if (cont == 0) {
char res= c.charAt(0);
if ((res >= 'a' && res <= 'z') || (res >= 'A' && res <= 'Z')) {
Header.add(c);
ch.idContacto = " ";
ch.nombre = c;
ch.apellido = " ";
ch.correo = " ";
ch.telefono = " ";
ch.Separador = "1";
codeLeanChaptersList.add(ch);
chapter.idContacto = mCursor.getString(0);
chapter.nombre = mCursor.getString(1);
chapter.apellido = mCursor.getString(2);
chapter.correo = mCursor.getString(3);
chapter.telefono = mCursor.getString(4);
chapter.Separador = "0";
codeLeanChaptersList.add(chapter);
} else {
// Agregamos el contacto
chapter.idContacto = mCursor.getString(0);
chapter.nombre = mCursor.getString(1);
chapter.apellido = mCursor.getString(2);
chapter.correo = mCursor.getString(3);
chapter.telefono = mCursor.getString(4);
chapter.Separador = "0";
codeLeanChaptersList.add(chapter);
}
} else {
// Agregamos el contacto
chapter.idContacto = mCursor.getString(0);
chapter.nombre = mCursor.getString(1);
chapter.apellido = mCursor.getString(2);
chapter.correo = mCursor.getString(3);
chapter.telefono = mCursor.getString(4);
chapter.Separador = "0";
codeLeanChaptersList.add(chapter);
}
} else {
char res= c.charAt(0);
if ((res >= 'a' && res <= 'z') || (res >= 'A' && res <= 'Z')) {
Header.add(c);
ch.idContacto = " ";
ch.nombre = c;
ch.apellido = " ";
ch.correo = " ";
ch.telefono = " ";
ch.Separador = "1";
codeLeanChaptersList.add(ch);
chapter.idContacto = mCursor.getString(0);
chapter.nombre = mCursor.getString(1);
chapter.apellido = mCursor.getString(2);
chapter.correo = mCursor.getString(3);
chapter.telefono = mCursor.getString(4);
chapter.Separador = "0";
codeLeanChaptersList.add(chapter);
} else {
// Agregamos el contacto
chapter.idContacto = mCursor.getString(0);
chapter.nombre = mCursor.getString(1);
chapter.apellido = mCursor.getString(2);
chapter.correo = mCursor.getString(3);
chapter.telefono = mCursor.getString(4);
chapter.Separador = "0";
codeLeanChaptersList.add(chapter);
}
}
} while (mCursor.moveToNext());
}
db.close();
adb.close();
return codeLeanChaptersList;
}
@Override
public boolean onQueryTextSubmit(String arg0) {
// TODO Auto-generated method stub
return false;
}
}
item_contacto.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/txt_nombre"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:text="Juan Perez"
android:textColor="#000"
android:textSize="20sp" />
<TableRow
android:id="@+id/tableRow1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp" >
<TextView
android:id="@+id/txt_correo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="gortiz@exagononononono.net"
android:textColor="@color/negro" />
<TextView
android:id="@+id/txt_num"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:text="01234567890"
android:textColor="@color/negro" />
</TableRow>
</LinearLayout>
活动主要
<LinearLayout xmlns:tools="http://schemas.android.com/tools"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center_vertical|center_horizontal|center"
android:background="#fff"
android:orientation="vertical"
tools:context="com.exa.Usuario.Contactos" >
<include
android:layout_width="wrap_content"
android:layout_height="wrap_content"
layout="@layout/header" />
<SearchView
android:id="@+id/search_contact"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="26dp"
android:iconifiedByDefault="false" />
<View
android:id="@+id/view1"
android:layout_width="fill_parent"
android:layout_height="1dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:background="#EAEAEA" />
<ListView
android:id="@+id/list_contactos"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp" >
</ListView>
</LinearLayout>
希望并成为你的帮助
答案 2 :(得分：0)
不需要使用带有ListView的适配器，但我担心您可能在ListView，TextView和ImageView之间存在UI重叠问题。我们假设你没有。
ImageView有听众。在你的情况下你需要setOnClickListener。一个粗略的例子：
ImageView theStar = (ImageView)v.findViewById(R.id.icon);
theStar.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.d(...
TextView itemText = (TextView) v.findViewById(R.id.items);
itemText.setBackground(R.Color...
}
});
我希望这会给你一个想法。让我们发布。