-1
操縱的ListView我下面this tutorial和試圖操縱從MySQL數據庫ListView但我的應用程序崩潰和logcat的說：從MySQL數據庫
11-28 11:06:42.093: E/AndroidRuntime(874): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.wintel.vasonapps/com.wintel.vasonapps.AllRBT}: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list'
雖然我有一個名爲list的ListView。這裏是佈局：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</ListView>
</LinearLayout>
我對每一個項目一個XML文件，命名爲list_item.xml
<!-- Product id (pid) - will be HIDDEN - used to pass to other activity -->
<TextView
android:id="@+id/pid"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:visibility="gone" />
<!-- Name Label -->
<TextView
android:id="@+id/name"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingTop="6dip"
android:paddingLeft="6dip"
android:textSize="17dip"
android:textStyle="bold" />
</LinearLayout>
誰能說爲什麼我的應用程序崩潰？如果需要進一步的代碼，請告訴我，我將用該代碼編輯此問題。提前致謝。
編輯：這是AllRBT.java，設置ID之後的錯誤來源於這裏線57
package com.wintel.vasonapps;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.http.NameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
public class AllRBT extends ListActivity {
// Progress Dialog
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://127.0.0.1/test/apps.php";
// JSON Node names
private static final String TAG_SUCCESS = "success";
private static final String TAG_PRODUCTS = "products";
private static final String TAG_PID = "pid";
private static final String TAG_NAME = "name";
// products JSONArray
JSONArray products = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_all_rbt);
// Hashmap for ListView
productsList = new ArrayList<HashMap<String, String>>();
// Loading products in Background Thread
new LoadAllProducts().execute(); //Line 57, this line throws error
// Get listview
ListView lv = getListView();
// on seleting single product
// launching Edit Product Screen
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
String pid = ((TextView) view.findViewById(R.id.pid)).getText()
.toString();
// Starting new intent
//Intent in = new Intent(getApplicationContext(),
// EditProductActivity.class);
// sending pid to next activity
//in.putExtra(TAG_PID, pid);
// starting new activity and expecting some response back
//startActivityForResult(in, 100);
}
});
}
// 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(AllRBT.this);
pDialog.setMessage("Loading ring back tones. Please wait...");
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_SUCCESS);
if (success == 1) {
// products found
// Getting Array of Products
products = json.getJSONArray(TAG_PRODUCTS);
// looping through All Products
for (int i = 0; i < products.length(); i++) {
JSONObject c = products.getJSONObject(i);
// Storing each json item in variable
String id = c.getString(TAG_PID);
String name = c.getString(TAG_NAME);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_PID, id);
map.put(TAG_NAME, 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(
AllRBT.this, productsList,
R.layout.list_item, new String[] { TAG_PID,
TAG_NAME},
new int[] { R.id.pid, R.id.name });
// updating listview
setListAdapter(adapter);
}
});
}
}
}
和錯誤是：
11-28 11:39:54.212: E/WindowManager(1596): Activity com.wintel.vasonapps.AllRBT has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{40cd2c88 V.E..... R......D 0,0-480,144} that was originally added here
11-28 11:39:54.212: E/WindowManager(1596): android.view.WindowLeaked: Activity com.wintel.vasonapps.AllRBT has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{40cd2c88 V.E..... R......D 0,0-480,144} that was originally added here
11-28 11:39:54.212: E/WindowManager(1596): at android.view.ViewRootImpl.<init>(ViewRootImpl.java:354)
11-28 11:39:54.212: E/WindowManager(1596): at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:216)
11-28 11:39:54.212: E/WindowManager(1596): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
11-28 11:39:54.212: E/WindowManager(1596): at android.app.Dialog.show(Dialog.java:281)
11-28 11:39:54.212: E/WindowManager(1596): at com.wintel.vasonapps.AllRBT$LoadAllProducts.onPreExecute(AllRBT.java:117)
11-28 11:39:54.212: E/WindowManager(1596): at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:586)
11-28 11:39:54.212: E/WindowManager(1596): at android.os.AsyncTask.execute(AsyncTask.java:534)
11-28 11:39:54.212: E/WindowManager(1596): at com.wintel.vasonapps.AllRBT.onCreate(AllRBT.java:57)
「您的內容t有一個ListView的id屬性是'android.R.id.list'「 – Sajmon