java - Eclipse 声称我没有名为 R.id.list 的 ListView

Question

所以 Eclipse 告诉我我的应用程序由于 RuntimeException 而崩溃:“您的内容必须有一个 ListView，其 id 属性是 android.R.id.list”。事情是这样的。正如您在下面看到的，我确实有一个 ListView，其 id 为 list，尽管我希望将其命名为更具描述性的名称。这是 activity_events.xml 文件

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"
        android:background="#e5e5e5">

        <ListView
            android:id="@+id/list"
            android:layout_marginLeft="16dp"
            android:layout_marginRight="16dp"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:divider="@null"
            android:dividerHeight="0dp">

        </ListView>

    </LinearLayout>

    <ProgressBar
        android:id="@+id/eventsProgressBar"
        style="?android:attr/progressBarStyleLarge"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true" />

</RelativeLayout>

我在这里要疯了吗？我已经通过 onCreate 方法包含了所有内容，因为那是它崩溃的地方，但是调试器和 LogCat 并没有比我到目前为止告诉您的更多帮助。这是 EventsActivity.java 文件。

package com.barjinx.barjinx;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Random;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ListActivity;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.text.Html;
import android.util.Log;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.Toast;

public class EventsActivity extends ListActivity {

public static final int MAX_NUMBER_OF_ITEMS = 100;
public static final String TAG = EventsActivity.class.getSimpleName();
protected JSONObject mBarJinxData;
protected ProgressBar mProgressBar;

private final String KEY_BAR_NAME = "bar name"; //Key for eventual bar name to be plugged into Hashmap to populate list data
private final String KEY_GAME_SIDES = "game sides"; //Key for eventual game teams and their relationship to each other to be plugged into Hashmap to populate list data

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_events);

    mProgressBar = (ProgressBar) findViewById(R.id.eventsProgressBar);
    ListView list = new ListView(this);

    if(isNetworkAvailable()) {
        mProgressBar.setVisibility(View.VISIBLE);
        GetEventsDataTask getEventsDataTask = new GetEventsDataTask();
        getEventsDataTask.execute();    
    }
    else {

        Toast.makeText(this, R.string.network_unavailable , Toast.LENGTH_LONG).show();
    }
}

Answer 1

尝试将 ListView 的 id 更改为 @+id/android:list