我正在制作一个用于列出客户的应用程序，当我从列表视图中点击他的名字时，我想用该客户端的详细信息打开一个新的活动...但是当我点击它时不打开任何东西，该应用程序仍在列表视图中
这是我的代码：
package com.example.hp13_b200.testedesign;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import org.apache.http.NameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
public class listar_clientes extends ListActivity {
private ListView list;
private ProgressDialog pDialog;
// Creating JSON Parser object
JSONParser jParser = new JSONParser();
ArrayList<HashMap<String, String>> productsList;
// url to get all products list
private static String url_all_products = "http://192.168.137.100:81/androidapp/listar_clientes.php";
// JSON Node names
private static final String TAG_CLIENTE= "clientes";
private static final String TAG_NOME = "nome";
private static final String TAG_ABV = "nome2";
// products JSONArray
JSONArray products = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_listar_clientes);
//list = (ListView)findViewById(android.R.id.list);
// Hashmap for ListView
productsList = new ArrayList<HashMap<String, String>>();
// Loading products in Background Thread
new LoadAllProducts().execute();
// Log.v("COUNT-->",productsList.get(0).toString());
// Get listview
ListView list = getListView();
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// getting values from selected ListItem
String nome = ((TextView) view.findViewById(R.id.name)).getText()
.toString();
String abv = ((TextView) view.findViewById(R.id.abv)).getText()
.toString();
Log.d("Cod_conta: ", ""+nome);
// Starting new intent
Intent in = new Intent(getApplicationContext(),
detalhes_cliente.class);
// sending pid to next activity
in.putExtra(TAG_NOME, nome);
in.putExtra(TAG_ABV, abv);
Log.d("entrou: ", "vai entrar" );
// starting new activity and expecting some response back
startActivity(in);
}
});
// launching Edit Product Screen
// lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
//
//
// // Starting new intent
// Intent in = new Intent(getApplicationContext(),
// list_item.class);
// // sending pid to next activity
// in.putExtra(TAG_PID, pid);
//
// // starting new activity and expecting some response back
// startActivityForResult(in, 100);
// }
// });
/* ListAdapter adapter = new SimpleAdapter(
encomendas_user.this, productsList,
R.layout.activity_list_item, new String[] { TAG_IDUSER,
TAG_TITULO},
new int[] { R.id.pid, R.id.name });
// updating listview
setListAdapter(adapter);*/
// on seleting single product
// launching Edit Product Screen
}
// Response from Edit Product Activity
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// if result code 100
if (resultCode == 100) {
// if result code 100 is received
// means user edited/deleted product
// reload this screen again
Intent intent = getIntent();
finish();
startActivity(intent);
}
}
/**
* Background Async Task to Load all product by making HTTP Request
* */
class LoadAllProducts extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(listar_clientes.this);
pDialog.setMessage("A Carregar dados. Por favor Aguarde...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
/**
* getting All products from url
* */
protected String doInBackground(String... args) {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
// getting JSON string from URL
JSONObject json = jParser.makeHttpRequest(url_all_products, "GET", params);
// Check your log cat for JSON reponse
Log.d("All Products: ", json.toString());
try {
// Checking for SUCCESS TAG
// int success = json.getInt(TAG_IDUSER);
//Log.d("NAMSUCCESSE: ", ""+success);
//if (success == 1) {
// products found
// Getting Array of Products
products = json.getJSONArray(TAG_CLIENTE);
// looping through All Products
for (int i = 0; i < products.length(); i++) {
JSONObject c = products.getJSONObject(i);
// Storing each json item in variable
String name = c.getString(TAG_NOME);
String abv = c.getString(TAG_ABV);
Log.d("NAME TESTE: ", name);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_NOME, "Nome:"+" "+ name);
map.put(TAG_ABV, "Abreviatura:"+" "+abv);
// if(UserInfo.userID==(Integer.parseInt(name))){
// adding HashList to ArrayList
productsList.add(map);
// }
}
/* } else {
// no products found
// Launch Add New product Activity
//Intent i = new Intent(getApplicationContext(),
// NewProductActivity.class);
// Closing all previous activities
//i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
// startActivity(i);
}*/
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog after getting all products
pDialog.dismiss();
// updating UI from Background Thread
runOnUiThread(new Runnable() {
public void run() {
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(
listar_clientes.this, productsList,
R.layout.activity_list_item_clientes, new String[]{TAG_NOME, TAG_ABV},
new int[]{R.id.name, R.id.abv});
// updating listview
setListAdapter(adapter);
}
});
}
}
}
这里是xml代码：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<!-- Main ListView
Always give id value as list(@android:id/list)
-->
<ListView
android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:divider="#FFFFFF"
android:dividerHeight="4px"/>
</LinearLayout>
答案 0 :(得分：1)
使用此：
// ListView Item Click Listener
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
switch(position){
case 0: // list position
Intent intent = new Intent(listar_clientes.this, detalhes_cliente.class);
intent.putExtra(TAG_NOME, nome);
intent.putExtra(TAG_ABV, abv);
startActivity(intent);
break;
}
}
});
修改
取消注释该行：list = (ListView)findViewById(android.R.id.list);
答案 1 :(得分：0)
尝试将ListView设置为可点击..
在您的Java文件中..
list.setClickable(true);
或者在xml listview ..
android:clickable="true"