我收到此错误:
Caused by: java.lang.RuntimeException:
Your content must have a ListView whose id attribute is 'android.R.id.list'
这是HomeScreen.java:
public class HomeScreen extends ListActivity {
String TAG = AppConstants.TAG;
@Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.home);
CBasicInfo basicinfo_data[] = new CBasicInfo[]
{
new CBasicInfo("Projet A", 1, new Date()),
new CBasicInfo("Projet A", 2, new Date()),
new CBasicInfo("Projet A", 3, new Date()),
new CBasicInfo("Projet A", 4, new Date()),
new CBasicInfo("Projet A", 5, new Date())
};
BasicInfoAdapter adapter = new BasicInfoAdapter(this, R.layout.home_screen_list_item, basicinfo_data);
ListView list_view = (ListView)findViewById(R.id.lvSavedProjects);
list_view.setAdapter(adapter);
}
}
这里是我的适配器BasicInfoAdapter.java:
public class BasicInfoAdapter extends ArrayAdapter<CBasicInfo>{
Context context;
int layoutResourceId;
CBasicInfo data[] = null;
public BasicInfoAdapter(Context context, int layoutResourceId, CBasicInfo[] data) {
super(context, layoutResourceId, data);
this.layoutResourceId = layoutResourceId;
this.context = context;
this.data = data;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
BasicInfoHolder holder = null;
if(row == null)
{
LayoutInflater inflater = ((Activity)context).getLayoutInflater();
row = inflater.inflate(layoutResourceId, parent, false);
holder = new BasicInfoHolder();
holder.txtName = (TextView)row.findViewById(R.id.tvHomeScreenProjectName);
holder.txtPid = (TextView)row.findViewById(R.id.tvHomeScreenPid);
holder.txtDDate = (TextView)row.findViewById(R.id.tvHomeScreenDownloadDate);
row.setTag(holder);
}
else
{
holder = (BasicInfoHolder)row.getTag();
}
CBasicInfo bi = data[position];
holder.txtName.setText(bi.getName());
holder.txtPid.setText(bi.getId());
holder.txtDDate.setText(bi.getExportDate().toString());
return row;
}
static class BasicInfoHolder
{
TextView txtName;
TextView txtPid;
TextView txtDDate;
}
}
我的home.xml是:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/lbl_saved_projects"
android:textAppearance="?android:attr/textAppearanceLarge" />
<ListView
android:id="@+id/lvSavedProjects"
android:name="android.app.ListFragment"
android:layout_width="match_parent"
android:layout_height="0dip"
android:layout_weight="0.86" />
<Button
android:id="@+id/bDownloadMoreProjects"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/lbl_download_more_projects" />
</LinearLayout>
我在这里做错了什么?
THX
编辑:
堆栈跟踪显示:
FATAL EXCEPTION: main
android.content.res.Resources$NotFoundException: String resource ID #0x1
at android.content.res.Resources.getText(Resources.java:247)
at android.widget.TextView.setText(TextView.java:3473)
at com.snip.tnc.SnipForAndroid.BasicInfoAdapter.getView(BasicInfoAdapter.java:48)
at android.widget.AbsListView.obtainView(AbsListView.java:2033)
at android.widget.ListView.makeAndAddView(ListView.java:1772)
at android.widget.ListView.fillDown(ListView.java:672)
at android.widget.ListView.fillFromTop(ListView.java:732)
at android.widget.ListView.layoutChildren(ListView.java:1625)
at android.widget.AbsListView.onLayout(AbsListView.java:1863)
at android.view.View.layout(View.java:11278)
at android.view.ViewGroup.layout(ViewGroup.java:4224)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1628)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1486)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1399)
at android.view.View.layout(View.java:11278)
at android.view.ViewGroup.layout(ViewGroup.java:4224)
at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
at android.view.View.layout(View.java:11278)
at android.view.ViewGroup.layout(ViewGroup.java:4224)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1628)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1486)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1399)
at android.view.View.layout(View.java:11278)
at android.view.ViewGroup.layout(ViewGroup.java:4224)
at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
at android.view.View.layout(View.java:11278)
at android.view.ViewGroup.layout(ViewGroup.java:4224)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1489)
at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2442)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4424)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
at dalvik.system.NativeStart.main(Native Method)
答案 0 :(得分:2)
错误很明显:
您的内容必须包含一个ListView,其id属性为'android.R.id.list'
所以看来你R.layout.home
没有。顺便说一下,您的问题与Adapter
s无关,但与ListActivity
无关。
布局中的ListView
应将其作为id
属性:
android:id="@android:id/list`
我不确定你的android:name
属性是做什么的。
答案 1 :(得分:1)
正如K-Ballo指出的那样,ListActivity
的布局必须为ListView
,其ID为android.R.id.list
。第一部分(android.R
)转换为@android:
,第二部分转换为id/list
所以......
将您ListView
的ID设为@android:id/list
。它会自动使用。
然后,您应该删除使用findViewById(...)
的行(ListActivity
不需要)。那你就用......
setListAdapter(adapter);
您无需找到ListView
来设置Adapter
,因为ListActivity
公开的上述方法会自动执行此操作。
但是,如果您确实需要ListView
用于其他目的,请使用...
getListView();