4

我正在尝试创建一个自定义 ListView。当我测试我的代码时，我收到以下错误

03-09 19:21:10.425: E/AndroidRuntime(379): java.lang.RuntimeException: Unable to start      activity ComponentInfo{com.anomaly.punchlist/com.anomaly.punchlist.TeamActivity}: java.lang.IllegalArgumentException: No view found for id 0x7f08000c for fragment TeamListFragment{4067a358 #0 id=0x7f08000c}

除了阅读有关 Fragments、ListFragments 和 ListViews 的 Android 文档之外，我在发布此问题之前还参考了以下链接。

链接 1：FragmentActivity onCreateView
链接 2：在 Android 上使用 ListFragment 时出现问题
链接 3：Android 片段找不到 ID 视图？
链接 4：Android ListFragment 让人困惑
链接 5：如何从 FragmentActivity 更新 ListFragment 中的 ListView？
链接 6：使用自定义视图填充 ListFragments？

我有扩展 FragmentActivity 的 TeamActivity 类和扩展 ListFragment 并实现 LoaderManager.LoaderCallbacks 的 TeamListFragment。请看下面的代码：

TeamActivity.java

package com.anomaly.punchlist;

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;

public class TeamActivity extends FragmentActivity {

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    FragmentManager fragmentManager = getSupportFragmentManager();
    FragmentTransaction fragmentTransaction =  fragmentManager.beginTransaction();
    TeamListFragment teamListFragment = new TeamListFragment();
    fragmentTransaction.add(R.id.android_teamList, teamListFragment);
    fragmentTransaction.commit();       
   }

 }

TeamListFragment.java

package com.anomaly.punchlist;

    import android.database.Cursor;
    import android.os.Bundle;
    import android.support.v4.app.ListFragment;
    import android.support.v4.app.LoaderManager;
    import android.support.v4.content.CursorLoader;
    import android.support.v4.content.Loader;
import android.support.v4.widget.CursorAdapter;
import android.support.v4.widget.SimpleCursorAdapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;

import com.anomaly.punchlist.contentprovider.basecolumns.TeamBaseColumns.Team;
import com.j256.ormlite.logger.Logger;
import com.j256.ormlite.logger.LoggerFactory;

public class TeamListFragment extends ListFragment implements LoaderManager.LoaderCallbacks<Cursor> {

    private static Logger logger = LoggerFactory.getLogger(TeamListFragment.class);
    private ListView listView;
    private SimpleCursorAdapter adapter;
    private static final int TEAM_LOADER_ACTIVITY = 0x01;
    private static final String[] PROJECTION = new String[] { "project_manager_id", "contact_id", "project_id" };
    private static String SELECTION = "contact_id = ? AND project_id = ?";

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        try {
            super.onCreate(savedInstanceState);
            int[] uiBindTo = { R.id.text1 };
            getLoaderManager().initLoader(TEAM_LOADER_ACTIVITY, null, this);
            adapter = new SimpleCursorAdapter(getActivity().getApplicationContext(), R.layout.team, null, null, uiBindTo, CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);

        } catch (Exception e) {
            logger.error(e.getMessage());
            new RuntimeException("RuntimeException occurred in onCreate() method of TeamActivity." + e);
        }
    }

    @Override
    public void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);
    }

    @Override
    public Loader<Cursor> onCreateLoader(int arg0, Bundle bundle) {

        String contactId = new String();
        String projectId = new String();
        CursorLoader cursorLoader = null;

        if (bundle != null) {
            contactId = bundle.getString("contact_id");
            projectId = bundle.getString("project_id");

        }
        String[] selectionArgs = { contactId + ", " + projectId };
        cursorLoader = new CursorLoader(getActivity(), Team.CONTENT_URI, PROJECTION, SELECTION, null, null);
        return cursorLoader;
    }

    @Override
    public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
        adapter.swapCursor(cursor);
        setListShown(true);

    }

    @Override
    public void onLoaderReset(Loader<Cursor> cursor) {
        adapter.swapCursor(null);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        onCreate(savedInstanceState);
        View teamView = inflater.inflate(R.layout.team, container, false);
        return teamView;
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        listView = getListView();
        listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
        setListAdapter(adapter);
        setListShown(true);
    }

}

除了上面的代码，我还有以下自定义布局。

团队.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingLeft="8dp"
    android:paddingRight="8dp" >


    <ListView
        android:id="@+id/android:teamList"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:background="@color/grey2"
        android:divider="@color/blue2"
        android:dividerHeight="1dp"
        android:drawSelectorOnTop="false" />

    <TextView
        android:id="@id/android:empty"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#FF0000"
        android:text="No data" />
</LinearLayout>
4

2 回答 2

6

在ActivityonCreate()的方法中使用该方法并定义一个布局文件，其中包含一个内部.setContentView(R.layout.activity)FrameLayoutLinearLayout

现在使用您刚刚添加的FrameLayoutadd()的 id调用方法，而不是您在您的中使用的，并在您的 team.xml 布局文件中替换为。R.id.android_teamListonCreate()android:id="@+id/android:teamList"android:id="@android:id/list"

顺便说一句，如果必须，您可以使用android.R.id.list.

于 2013-03-10T02:26:46.513 回答
1

R.id.text1应定义在R.layout.team.

检查SimpleCursorAdapter 文档：

定义此列表项的视图的布局文件的资源标识符。布局文件应该至少包括那些在“to”中定义的命名视图

于 2013-03-10T02:44:15.930 回答