java.lang.RuntimeException:您的内容必须具有id属性为'安卓R.id.list'



我想使用列表视图来显示应用程序中发送的项目,但当我运行它时,我的应用程序崩溃了,我在logcat上收到以下消息"java.lang.RuntimeException:您的内容必须有一个id属性为"android.R.id.list'"的listview。我已经在这个论坛上搜索了解决方案,正如你所看到的,我已经有了一个id为所需的列表视图,但错误仍然会弹出。我哪里错了?请帮忙。

这是我的DisplaySentItemsActivity:

package zw.ac.msu.kuda.e_servives;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ListView;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
public class DisplaySentItemsActivity extends AppCompatActivity {
String json_sentitems;
JSONObject jsonObject;
JSONArray jsonArray;
SentItemsAdapter sentItemsAdapter;
ListView listView;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_display_sent_items);
    listView =(ListView) findViewById(android.R.id.list);
    listView.setAdapter(sentItemsAdapter);
    sentItemsAdapter=new SentItemsAdapter(this,R.layout.fragment_sentitems);                           
    json_sentitems=getIntent().getExtras().getString("json_data");
    try {
        jsonObject=new JSONObject(json_sentitems);
        jsonArray=jsonObject.getJSONArray("server_response");
        int count=0;
        int id;
        String email, dateSent, subject, body, attachments;
        while(count<jsonArray.length()) {
            JSONObject finalObject = jsonArray.getJSONObject(0);
            id = finalObject.getInt("id");
            email = finalObject.getString("email");
            dateSent = finalObject.getString("dateSent");
            subject = finalObject.getString("subject");
            body = finalObject.getString("body");
            attachments = finalObject.getString("attachments");
            SentItems sentItems=new  SentItems(subject,dateSent,body,attachments,id);
            sentItemsAdapter.add(sentItems);
            count++;
        }
    } catch (JSONException e) {
        e.printStackTrace();
    }
}

}

<?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"
tools:context="zw.ac.msu.kuda.e_servives.DisplaySentItemsActivity">
<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
</RelativeLayout>

更改

<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
with this
<ListView
android:id="@+id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>

和这个

listView =(ListView) findViewById(android.R.id.list);

用这个

listView =(ListView) findViewById(R.id.list);

最新更新