所以我正在尝试制作一个自定义的SimpleCursorAdapter ，因为我想制作看起来像这样的列表行：文本视图 | ImageButton，我知道如果不制作自定义适配器就无法做到这一点。
问题是我的代码不起作用，我不确定为什么。即使没有要显示的数据，我也会得到默认格式的一行：
ToggleButton | “默认” | 图像按钮。
此外，显示的所有行看起来都与默认行完全相同，并且我设置的 OnClickListener 不执行任何操作。
有人可以告诉我我做错了什么，或者至少为我指出一个关于如何处理自定义 CursorAdapters 和 OnClickListeners 的体面教程的方向？因为我完全找不到任何有帮助的东西。
这是我的适配器代码：
public class AlarmCursorAdapter extends SimpleCursorAdapter {
private Cursor mCursor;
private Context mContext;
private Activity mActivity;
public AlarmCursorAdapter(Context context, int layout, Cursor c,
String[] from, int[] to, int flags) {
super(context, layout, c, from, to, flags);
// TODO Auto-generated constructor stub
mCursor = c;
mContext = context;
mActivity = (Activity) context;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if(view == null) {
view = LayoutInflater.from(mContext).inflate(R.layout.alarm_list_row, parent, false);
}
if(mCursor == null || mCursor.getCount() == 0) {
return view;
}
mCursor.moveToPosition(position);
// Set the alarm time view
TextView alarmView = (TextView) view.findViewById(R.id.alarmView);
int timeStringIndex = mCursor.getColumnIndexOrThrow(DailyAlarmTable.ALARM_TIME);
String alarmTime = mCursor.getString(timeStringIndex);
alarmView.setText(alarmTime);
// Set up the toggle button
int isActiveIndex = mCursor.getColumnIndexOrThrow(DailyAlarmTable.ALARM_ISACTIVE);
int isActive = mCursor.getInt(isActiveIndex);
ToggleButton alarmToggle = (ToggleButton)view.findViewById(R.id.alarmToggle);
if(isActive == 1) {
alarmToggle.setChecked(true);
} else {
alarmToggle.setChecked(false);
}
final int currentPosition = mCursor.getPosition();
int idIndex = mCursor.getColumnIndexOrThrow(DailyAlarmTable.ALARM_ID);
final long alarmId = mCursor.getLong(idIndex);
alarmToggle.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
String toastStr = "clicked alarm " + alarmId + " at position " + currentPosition;
Toast.makeText(mContext, toastStr, Toast.LENGTH_SHORT).show();
}
});
return view;
}
}
这是实现，它发生在片段内：
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
/*
mAdapter = new SimpleCursorAdapter(getActivity(),
R.layout.alarm_list_row, null,
new String[] { DailyAlarmTable.ALARM_TIME, DailyAlarmTable.ALARM_ISACTIVE },
new int[] { R.id.alarmView, R.id.alarmToggle }, 0);
*/
mAdapter = new AlarmCursorAdapter(getActivity(),
R.layout.alarm_list_row, null,
new String[] { DailyAlarmTable.ALARM_TIME, DailyAlarmTable.ALARM_ISACTIVE },
new int[] { R.id.alarmView, R.id.alarmToggle }, 0);
//mAdapter.setViewBinder(new AlarmViewBinder());
ListView alarmList = (ListView) this.getActivity().findViewById(R.id.alarmListView);
TextView emptyView = (TextView) this.getActivity().findViewById(R.id.empty);
alarmList.setEmptyView(emptyView);
alarmList.setAdapter(mAdapter);
// Initialize the loader
getLoaderManager().initLoader(1, savedInstanceState, this);
}
这是该行的 XML 文件：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ToggleButton
android:id="@+id/alarmToggle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="@string/details_default" />
<TextView
android:id="@+id/alarmView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/details_default"
android:textAppearance="?android:attr/textAppearanceMedium" />
<ImageButton
android:id="@+id/alarmDiscard"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_discard"
android:contentDescription="@string/alarm_discard_description" />
</LinearLayout>
如果您需要任何其他代码，我很乐意添加。非常感谢您提前。