我发现我需要一个 ViewBinder 而不是自定义光标 addapter 但是我遇到的问题是，在每一行上它都不会重新确定是否需要隐藏它。它只是总是把它隐藏起来
编辑：我们已经让它显示图像并在需要时隐藏它们，但当我滚动时它们令人沮丧。
public class HistoryFragment extends Fragment {
ListView listTimeline;
SimpleCursorAdapter adapter;
TextView txtCreatedAt, txtFertile, txtTemp, txtCervix;
ImageView imgIntercorse, imgEnergy, imgPregancy, imgMood, imgHeadache, imgPeriod;
IntentFilter filter;
static final String[] FROM = { StatusData.KEY_CHARTING_DATE, StatusData.KEY_CHARTING_NOTES, StatusData.KEY_CHARTING_FERTILE,
StatusData.KEY_CHARTING_TEMPERATURE, StatusData.KEY_CHARTING_PERIOD, StatusData.KEY_CHARTING_INTERCORSE,
StatusData.KEY_CHARTING_MOOD, StatusData.KEY_CHARTING_HEADACHE, StatusData.KEY_CHARTING_TEST,
StatusData.KEY_CHARTING_ENERGY };
static final int[] TO = { R.id.txtCreatedAt, R.id.txtNote, R.id.txtFertile,
R.id.txtTemp, R.id.imgPeriod, R.id.imgIntercorse,
R.id.imgMood, R.id.imgHeadache, R.id.imgPregancy,
R.id.imgEnergy};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_history, container, false);
listTimeline = (ListView) view.findViewById(R.id.listTimeline);
return view;
}
@Override
public void onResume() {
super.onResume();
this.setupList();
}
@Override
public void onPause() {
super.onPause();
}
private void setupList() {
txtCreatedAt = (TextView) getActivity().findViewById(R.id.txtCreatedAt);
txtFertile = (TextView) getActivity().findViewById(R.id.txtFertile);
txtTemp = (TextView) getActivity().findViewById(R.id.txtTemp);
txtCervix = (TextView) getActivity().findViewById(R.id.txtCervix);
imgIntercorse = (ImageView) getActivity().findViewById(R.id.imgIntercorse);
imgEnergy = (ImageView) getActivity().findViewById(R.id.imgEnergy);
imgPregancy = (ImageView) getActivity().findViewById(R.id.imgPregancy);
imgMood = (ImageView) getActivity().findViewById(R.id.imgMood);
imgHeadache = (ImageView) getActivity().findViewById(R.id.imgHeadache);
imgPeriod = (ImageView) getActivity().findViewById(R.id.imgPeriod);
// Get the data
Cursor c = getActivity().getContentResolver().query(StatusProvider.CONTENT_URI_CHARTING, null, null , null, StatusData.KEY_CHARTING_DATE + " DESC"); // <3>
// create the adapter using the cursor pointing to the desired data
//as well as the layout information
adapter = new SimpleCursorAdapter(getActivity(), R.layout.history_row, c, FROM, TO);
adapter.setViewBinder(new CustomViewBinder());
// Assign adapter to ListView
listTimeline.setAdapter(adapter);
}
private class CustomViewBinder implements ViewBinder {
private Date parseDate(String date) {
SimpleDateFormat curFormater = new SimpleDateFormat("yyyy-MM-dd");
Date dateObj = new Date();
try {
dateObj = curFormater.parse(date);
} catch (java.text.ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return dateObj;
}
@Override
public boolean setViewValue(View view, Cursor cursor, int columnIndex) {
if (columnIndex == cursor.getColumnIndex(StatusData.KEY_CHARTING_DATE)) {
SimpleDateFormat format = new SimpleDateFormat("MM/dd/yyyy");
String date = cursor.getString(columnIndex);
Date dateObj = parseDate(date);
String formatedDate = format.format(dateObj);
TextView tv = (TextView) view;
tv.setText(formatedDate);
return true;
}
if (columnIndex == cursor.getColumnIndex(StatusData.KEY_CHARTING_PERIOD)) {
// If the column is IS_STAR then we use custom view.
String is_period = cursor.getString(columnIndex);
if (is_period != null) {
if (is_period.equalsIgnoreCase("no")){
// set the visibility of the view to GONE
view.setVisibility(View.INVISIBLE);
}
}
return true;
}
if (columnIndex == cursor.getColumnIndex(StatusData.KEY_CHARTING_INTERCORSE)) {
// If the column is IS_STAR then we use custom view.
String is_intercorse = cursor.getString(columnIndex);
if (is_intercorse != null) {
if (is_intercorse.equalsIgnoreCase("no")) {
// set the visibility of the view to GONE
view.setVisibility(View.INVISIBLE);
}
}
return true;
}
if (columnIndex == cursor.getColumnIndex(StatusData.KEY_CHARTING_MOOD)) {
// If the column is IS_STAR then we use custom view.
String is_mood = cursor.getString(columnIndex);
if (is_mood != null) {
if (is_mood.equalsIgnoreCase("no") ) {
// set the visibility of the view to GONE
view.setVisibility(View.INVISIBLE);
}
}
return true;
}
if (columnIndex == cursor.getColumnIndex(StatusData.KEY_CHARTING_HEADACHE)) {
// If the column is IS_STAR then we use custom view.
String is_headache = cursor.getString(columnIndex);
if (is_headache != null) {
if (is_headache.equalsIgnoreCase("no")) {
// set the visibility of the view to GONE
view.setVisibility(View.INVISIBLE);
}
}
return true;
}
if (columnIndex == cursor.getColumnIndex(StatusData.KEY_CHARTING_TEST)) {
// If the column is IS_STAR then we use custom view.
String is_test = cursor.getString(columnIndex);
if (is_test != null) {
if (is_test.equalsIgnoreCase("no")) {
// set the visibility of the view to GONE
view.setVisibility(View.INVISIBLE);
}
}
return true;
}
if (columnIndex == cursor.getColumnIndex(StatusData.KEY_CHARTING_ENERGY)) {
// If the column is IS_STAR then we use custom view.
String is_energy = cursor.getString(columnIndex);
if (is_energy != null) {
if (is_energy.equalsIgnoreCase("no")) {
// set the visibility of the view to GONE
view.setVisibility(View.INVISIBLE);
}
}
return true;
}
// For others, we simply return false so that the default binding
// happens.
return false;
}
}
}