@Override
 public void clearAllFields() {
   if (mFieldEditTexts != null) {
     for (EditText fieldEditText : mFieldEditTexts) {
       // Update UI (which will trigger a state change through the {@link TextWatcher})
       fieldEditText.setText("");
     }
   }
   if (localGroupsSelectors != null) {
     for (LocalGroupsSelector selector : localGroupsSelectors) {
       selector.clear();
     }
   }
 }
 @Override
 public boolean isEmpty() {
   for (int i = 0; i < mFields.getChildCount(); i++) {
     View editor = mFields.getChildAt(i);
     if (editor instanceof EditText) {
       EditText editText = (EditText) editor;
       if (!TextUtils.isEmpty(editText.getText())) {
         return false;
       }
     } else if (editor instanceof LocalGroupsSelector) {
       LocalGroupsSelector selector = (LocalGroupsSelector) editor;
       if (selector.getGroupId() > -1) {
         return false;
       }
     }
   }
   return true;
 }
  @Override
  public void setValues(
      DataKind kind, ValuesDelta entry, EntityDelta state, boolean readOnly, ViewIdGenerator vig) {
    super.setValues(kind, entry, state, readOnly, vig);
    // Remove edit texts that we currently have
    if (mFieldEditTexts != null) {
      for (EditText fieldEditText : mFieldEditTexts) {
        mFields.removeView(fieldEditText);
      }
      mFieldEditTexts = null;
    }
    if (localGroupsSelectors != null) {
      for (View view : localGroupsSelectors) {
        mFields.removeView(view);
      }
      localGroupsSelectors = null;
    }
    boolean hidePossible = false;

    int fieldCount = kind.fieldList.size();
    if (LocalGroup.CONTENT_ITEM_TYPE.equals(kind.mimeType))
      localGroupsSelectors = new LocalGroupsSelector[fieldCount];
    else mFieldEditTexts = new EditText[fieldCount];
    for (int index = 0; index < fieldCount; index++) {
      final EditField field = kind.fieldList.get(index);
      if (LocalGroup.CONTENT_ITEM_TYPE.equals(kind.mimeType)) {
        final LocalGroupsSelector localGroupsSelector =
            new LocalGroupsSelector(mContext, entry, field.column);
        localGroupsSelector.setOnGroupSelectListener(
            new OnGroupSelectListener() {
              @Override
              public void onGroupChanged() {
                setDeleteButtonVisible(localGroupsSelector.getGroupId() > -1);
              }
            });
        // Show the delete button if we have a non-null value
        setDeleteButtonVisible(localGroupsSelector.getGroupId() > -1);
        localGroupsSelectors[index] = localGroupsSelector;
        mFields.addView(localGroupsSelector);
      } else {
        final EditText fieldView = new EditText(mContext);
        /*Begin: Modified by bxinchun for change the layout 2012/07/24*/
        /*Begin: Modified by xiepengfei for change the layout 2012/05/02*/
        LinearLayout.LayoutParams params =
            new LinearLayout.LayoutParams(
                LayoutParams.MATCH_PARENT,
                field.isMultiLine() ? LayoutParams.WRAP_CONTENT : mMinFieldHeight);
        params.bottomMargin = 10;
        fieldView.setLayoutParams(params);
        /*End: Modified by xiepengfei for change the layout 2012/05/02*/
        /*End: Modified by bxinchun for change the layout 2012/07/24*/

        // Set either a minimum line requirement or a minimum height (because {@link TextView}
        // only takes one or the other at a single time).
        if (field.minLines != 0) {
          fieldView.setMinLines(field.minLines);
        } else {
          fieldView.setMinHeight(mMinFieldHeight);
        }
        fieldView.setTextAppearance(getContext(), android.R.style.TextAppearance_Medium);
        fieldView.setGravity(Gravity.TOP);
        /*Begin: Modified by xiepengfei for change the layout 2012/05/02*/
        fieldView.setBackgroundResource(R.drawable.edit_editor_background);
        fieldView.setTextSize(20);
        fieldView.setTextColor(Color.BLACK);
        /*End: Modified by xiepengfei for change the layout 2012/05/02*/
        mFieldEditTexts[index] = fieldView;
        fieldView.setId(vig.getId(state, kind, entry, index));
        if (field.titleRes > 0) {
          fieldView.setHint(field.titleRes);
        }
        int inputType = field.inputType;
        fieldView.setInputType(inputType);
        if (inputType == InputType.TYPE_CLASS_PHONE) {
          PhoneNumberFormatter.setPhoneNumberFormattingTextWatcher(mContext, fieldView);
        }

        // Show the "next" button in IME to navigate between text fields
        // TODO: Still need to properly navigate to/from sections without text fields,
        // See Bug: 5713510
        fieldView.setImeOptions(EditorInfo.IME_ACTION_NEXT);

        // Read current value from state
        final String column = field.column;
        final String value = entry.getAsString(column);
        fieldView.setText(value);

        // Show the delete button if we have a non-null value
        setDeleteButtonVisible(value != null);

        // Prepare listener for writing changes
        fieldView.addTextChangedListener(
            new TextWatcher() {
              @Override
              public void afterTextChanged(Editable s) {
                // Trigger event for newly changed value
                onFieldChanged(column, s.toString());
              }

              @Override
              public void beforeTextChanged(CharSequence s, int start, int count, int after) {}

              @Override
              public void onTextChanged(CharSequence s, int start, int before, int count) {}
            });

        fieldView.setEnabled(isEnabled() && !readOnly);

        if (field.shortForm) {
          hidePossible = true;
          mHasShortAndLongForms = true;
          fieldView.setVisibility(mHideOptional ? View.VISIBLE : View.GONE);
        } else if (field.longForm) {
          hidePossible = true;
          mHasShortAndLongForms = true;
          fieldView.setVisibility(mHideOptional ? View.GONE : View.VISIBLE);
        } else {
          // Hide field when empty and optional value
          final boolean couldHide = (!ContactsUtils.isGraphic(value) && field.optional);
          final boolean willHide = (mHideOptional && couldHide);
          fieldView.setVisibility(willHide ? View.GONE : View.VISIBLE);
          hidePossible = hidePossible || couldHide;
        }

        mFields.addView(fieldView);
      }
    }

    // When hiding fields, place expandable
    setupExpansionView(hidePossible, mHideOptional);
    mExpansionView.setEnabled(!readOnly && isEnabled());
  }