哪个有史以来的Android应用程序，我正在运行越来越强迫关闭错误好心帮我我的代码是这样的

Question

当我试图运行任何Android应用程序时，我得到一个问题。我已经下载了Eclipse indigo和它的ADT插件，它的版本是：20.0.0.v201206242043-391819。

MainActivity.java：

package com.example.onlineres; 

import java.io.BufferedReader; 
import java.io.InputStream; 
import java.io.InputStreamReader; 
import java.util.ArrayList; 

import org.apache.http.HttpEntity; 
import org.apache.http.HttpResponse; 
import org.apache.http.NameValuePair; 
import org.apache.http.client.HttpClient; 
import org.apache.http.client.entity.UrlEncodedFormEntity; 
import org.apache.http.client.methods.HttpPost; 
import org.apache.http.impl.client.DefaultHttpClient; 
import org.json.JSONArray; 
import org.json.JSONException; 
import org.json.JSONObject; 

import android.app.ListActivity; 
import android.net.ParseException; 
import android.os.Bundle; 
import android.util.Log; 
import android.widget.Toast; 

public class MainActivity extends ListActivity { 

JSONArray jArray; 
String result = null; 
InputStream is = null; 
StringBuilder sb=null; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
setContentView(R.layout.activity_main); 

ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(); 
//http post 
try{ 
HttpClient httpclient = new DefaultHttpClient(); 
HttpPost httppost = new HttpPost("http://10.0.2.2/city.php"); 
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 
HttpResponse response = httpclient.execute(httppost); 
HttpEntity entity = response.getEntity(); 
is = entity.getContent(); 
}catch(Exception e){ 
    Log.e("log_tag", "Error in http connection"+e.toString()); 
} 
//convert response to string 
    try{ 
    BufferedReader reader = new BufferedReader(new InputStreamReader        
(is,"iso-8859-1"),8); 
    sb = new StringBuilder(); 
    sb.append(reader.readLine() + "\n"); 

    String line="0"; 
    while ((line = reader.readLine()) != null) { 
        sb.append(line + "\n"); 
    } 
    is.close(); 
    result=sb.toString(); 
    }catch(Exception e){ 
      Log.e("log_tag", "Error converting result "+e.toString()); 
    } 
//paring data 
int ct_id; 
String ct_name; 
try{ 
    jArray = new JSONArray(result); 
    JSONObject json_data=null; 
    for(int i=0;i<jArray.length();i++){ 
     json_data = jArray.getJSONObject(i); 
     ct_id=json_data.getInt("CITY_ID"); 
     ct_name=json_data.getString("CITY_NAME"); 
    } 
    } 
    catch(JSONException e1){ 
     Toast.makeText(getBaseContext(), "No City Found" ,Toast.LENGTH_LONG).show(); 
    } catch (ParseException e1) { 
      e1.printStackTrace(); 
    } 
} 
} 

manifest.xml：（我已经添加使用许可接入Internet）

<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
package="com.example.onlineres" 
android:versionCode="1" 
android:versionName="1.0" > 
<uses-permission android:name="android.permission.INTERNET"></uses-permission> 
<uses-sdk 
    android:minSdkVersion="8" 
    android:targetSdkVersion="15" /> 

<application 
    android:icon="@drawable/ic_launcher" 
    android:label="@string/app_name" 
    android:theme="@style/AppTheme" > 
    <activity 
     android:name=".MainActivity" 
     android:label="@string/title_activity_main" > 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 

      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
    </activity> 
</application> 
</manifest> 

的logcat的是

07-19 14:08:04.933: W/ActivityThread(271): Application com.example.onlineres is    waiting  for the debugger on port 8100... 
07-19 14:08:04.963: I/System.out(271): Sending WAIT chunk 
07-19 14:08:05.023: I/dalvikvm(271): Debugger is active 
07-19 14:08:05.173: I/System.out(271): Debugger has connected 
07-19 14:08:05.173: I/System.out(271): waiting for debugger to settle... 
07-19 14:08:05.373: I/System.out(271): waiting for debugger to settle... 
07-19 14:08:05.573: I/System.out(271): waiting for debugger to settle... 
07-19 14:08:05.776: I/System.out(271): waiting for debugger to settle... 
07-19 14:08:05.981: I/System.out(271): waiting for debugger to settle... 
07-19 14:08:06.183: I/System.out(271): waiting for debugger to settle... 
07-19 14:08:06.383: I/System.out(271): waiting for debugger to settle... 
07-19 14:08:06.586: I/System.out(271): waiting for debugger to settle... 
07-19 14:08:06.793: I/System.out(271): debugger has settled (1348) 
07-19 14:08:45.853: D/AndroidRuntime(271): Shutting down VM 
07-19 14:08:45.853: W/dalvikvm(271): threadid=1: thread exiting with uncaught exception  (group=0x4001d800) 
07-19 14:08:45.943: E/AndroidRuntime(271): FATAL EXCEPTION: main 
07-19 14:08:45.943: E/AndroidRuntime(271): java.lang.RuntimeException: Unable to start  activity  ComponentInfo{com.example.onlineres/com.example.onlineres.MainActivity}:  java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list' 
07-19 14:08:45.943: E/AndroidRuntime(271): at  android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663) 
07-19 14:08:45.943: E/AndroidRuntime(271): at  android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 
07-19 14:08:45.943: E/AndroidRuntime(271): at android.app.ActivityThread.access$2300(ActivityThread.java:125) 
07-19 14:08:45.943: E/AndroidRuntime(271): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 
07-19 14:08:45.943: E/AndroidRuntime(271): at android.os.Handler.dispatchMessage(Handler.java:99) 
07-19 14:08:45.943: E/AndroidRuntime(271): at android.os.Looper.loop(Looper.java:123) 
07-19 14:08:45.943: E/AndroidRuntime(271): at android.app.ActivityThread.main(ActivityThread.java:4627) 
07-19 14:08:45.943: E/AndroidRuntime(271): at java.lang.reflect.Method.invokeNative(Native Method) 
07-19 14:08:45.943: E/AndroidRuntime(271): at java.lang.reflect.Method.invoke(Method.java:521) 
07-19 14:08:45.943: E/AndroidRuntime(271): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 
07-19 14:08:45.943: E/AndroidRuntime(271): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 
07-19 14:08:45.943: E/AndroidRuntime(271): at dalvik.system.NativeStart.main(Native Method) 
07-19 14:08:45.943: E/AndroidRuntime(271): Caused by: java.lang.RuntimeException: Your content must have a ListView whose id attribute is 'android.R.id.list' 
07-19 14:08:45.943: E/AndroidRuntime(271): at android.app.ListActivity.onContentChanged(ListActivity.java:245) 
07-19 14:08:45.943: E/AndroidRuntime(271): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:201) 
07-19 14:08:45.943: E/AndroidRuntime(271): at android.app.Activity.setContentView(Activity.java:1647) 
07-19 14:08:45.943: E/AndroidRuntime(271): at com.example.onlineres.MainActivity.onCreate(MainActivity.java:38) 
07-19 14:08:45.943: E/AndroidRuntime(271): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 
07-19 14:08:45.943: E/AndroidRuntime(271): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 
07-19 14:08:45.943: E/AndroidRuntime(271): ... 11 more 

Answer 1

如果你的错误是调试器：尝试在Manifest.xml中添加此属性：

android:debuggable="true" 

别的，尽量在正常模式下启动应用程序，并发表您的错误堆栈跟踪

Answer 2

>您的内容必须有一个ListView其id属性为“android.R.id.list” - 这是你的logcat中的错误之一。

更改列表视图的id采取android:id="@android:id/list"