/**
   * Attaches onKey listener to the Button passed as a parameter to the method. If enter key on the
   * keyboard or center key on the keypad is pressed, the value of the parameter passed is checked.
   *
   * @param button The button with which the onKeyListener is to be associated.
   * @param buttonFlag If the value of buttonFlag is 1, an alert dialog is displayed, to confirm the
   *     delete operation. If the value of buttonFlag is 2, the contact is copied to the SD card. If
   *     the value of buttonFlag is 3, all the contacts are exported to the SD card. If the value of
   *     buttonFlag is 4, contacts are imported from the SD card.
   */
  private void attachKeyListener(Button button, final int buttonFlag) {
    button.setOnKeyListener(
        new OnKeyListener() {

          @Override
          public boolean onKey(View view, int keyCode, KeyEvent keyEvent) {
            if (keyEvent.getAction() == KeyEvent.ACTION_DOWN) {
              switch (keyCode) {
                case KeyEvent.KEYCODE_DPAD_CENTER:
                case KeyEvent.KEYCODE_ENTER:
                  switch (buttonFlag) {
                    case 1:
                      confirmDelete(getString(R.string.deleteSingleContacConfirm));
                      break;
                    case 2:
                      copyToSDcard();
                      break;
                    case 3:
                      export();
                      break;
                    case 4:
                      importContact();
                      break;
                  }
                  break;
              }
            }
            return false;
          }
        });
  }
  @Override
  public View onCreateView(
      LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    if (getShowsDialog()) {
      getDialog().getWindow().requestFeature(Window.FEATURE_NO_TITLE);
    }

    View view = inflater.inflate(R.layout.radial_time_picker_dialog, null);
    KeyboardListener keyboardListener = new KeyboardListener();
    view.findViewById(R.id.time_picker_dialog).setOnKeyListener(keyboardListener);

    Resources res = getResources();
    TypedArray themeColors =
        getActivity().obtainStyledAttributes(mStyleResId, R.styleable.BetterPickersDialogs);

    // Prepare some colors to use.
    int headerBgColor =
        themeColors.getColor(
            R.styleable.BetterPickersDialogs_bpHeaderBackgroundColor, R.color.bpBlue);
    int bodyBgColor =
        themeColors.getColor(
            R.styleable.BetterPickersDialogs_bpBodyBackgroundColor, R.color.bpWhite);
    int buttonBgColor =
        themeColors.getColor(
            R.styleable.BetterPickersDialogs_bpButtonsBackgroundColor, R.color.bpWhite);
    int buttonTextColor =
        themeColors.getColor(R.styleable.BetterPickersDialogs_bpButtonsTextColor, R.color.bpBlue);
    mSelectedColor =
        themeColors.getColor(
            R.styleable.BetterPickersDialogs_bpHeaderSelectedTextColor, R.color.bpWhite);
    mUnselectedColor =
        themeColors.getColor(
            R.styleable.BetterPickersDialogs_bpHeaderUnselectedTextColor,
            R.color.radial_gray_light);

    mHourPickerDescription = res.getString(R.string.hour_picker_description);
    mSelectHours = res.getString(R.string.select_hours);
    mMinutePickerDescription = res.getString(R.string.minute_picker_description);
    mSelectMinutes = res.getString(R.string.select_minutes);

    mHourView = (TextView) view.findViewById(R.id.hours);
    mHourView.setOnKeyListener(keyboardListener);
    mHourSpaceView = (TextView) view.findViewById(R.id.hour_space);
    mMinuteSpaceView = (TextView) view.findViewById(R.id.minutes_space);
    mMinuteView = (TextView) view.findViewById(R.id.minutes);
    mMinuteView.setOnKeyListener(keyboardListener);
    mAmPmTextView = (TextView) view.findViewById(R.id.ampm_label);
    mAmPmTextView.setOnKeyListener(keyboardListener);
    String[] amPmTexts = new DateFormatSymbols().getAmPmStrings();
    mAmText = amPmTexts[0];
    mPmText = amPmTexts[1];

    mHapticFeedbackController = new HapticFeedbackController(getActivity());

    mTimePicker = (RadialPickerLayout) view.findViewById(R.id.time_picker);
    mTimePicker.setOnValueSelectedListener(this);
    mTimePicker.setOnKeyListener(keyboardListener);
    mTimePicker.initialize(
        getActivity(), mHapticFeedbackController, mInitialHourOfDay, mInitialMinute, mIs24HourMode);

    int currentItemShowing = HOUR_INDEX;
    if (savedInstanceState != null && savedInstanceState.containsKey(KEY_CURRENT_ITEM_SHOWING)) {
      currentItemShowing = savedInstanceState.getInt(KEY_CURRENT_ITEM_SHOWING);
    }
    setCurrentItemShowing(currentItemShowing, false, true, true);
    mTimePicker.invalidate();

    mHourView.setOnClickListener(
        new OnClickListener() {
          @Override
          public void onClick(View v) {
            setCurrentItemShowing(HOUR_INDEX, true, false, true);
            tryVibrate();
          }
        });
    mMinuteView.setOnClickListener(
        new OnClickListener() {
          @Override
          public void onClick(View v) {
            setCurrentItemShowing(MINUTE_INDEX, true, false, true);
            tryVibrate();
          }
        });

    mTitleTextView = (TextView) view.findViewById(R.id.time_picker_header);
    if (mTitleText != null) {
      mTitleTextView.setVisibility(View.VISIBLE);
      mTitleTextView.setText(mTitleText);
    } else {
      mTitleTextView.setVisibility(View.GONE);
    }

    mError = (NumberPickerErrorTextView) view.findViewById(R.id.error);

    if (hasTimeLimits()) {
      mError.setVisibility(View.INVISIBLE);
    } else {
      mError.setVisibility(View.GONE);
    }

    mDoneButton = (Button) view.findViewById(R.id.done_button);
    if (mDoneText != null) {
      mDoneButton.setText(mDoneText);
    }
    mDoneButton.setTextColor(buttonTextColor);
    mDoneButton.setOnClickListener(
        new OnClickListener() {
          @Override
          public void onClick(View v) {
            if (mInKbMode && isTypedTimeFullyLegal()) {
              finishKbMode(false);
            } else {
              tryVibrate();
            }
            doneClickValidateAndCallback();
          }
        });
    mDoneButton.setOnKeyListener(keyboardListener);

    Button cancelButton = (Button) view.findViewById(R.id.cancel_button);
    if (mCancelText != null) {
      cancelButton.setText(mCancelText);
    }
    cancelButton.setTextColor(buttonTextColor);
    cancelButton.setOnClickListener(
        new OnClickListener() {

          @Override
          public void onClick(View v) {
            tryVibrate();
            dismiss();
          }
        });

    // Enable or disable the AM/PM view.
    mAmPmHitspace = view.findViewById(R.id.ampm_hitspace);
    if (mIs24HourMode) {
      mAmPmTextView.setVisibility(View.GONE);

      RelativeLayout.LayoutParams paramsSeparator =
          new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
      paramsSeparator.addRule(RelativeLayout.CENTER_IN_PARENT);
      TextView separatorView = (TextView) view.findViewById(R.id.separator);
      separatorView.setLayoutParams(paramsSeparator);
    } else {
      mAmPmTextView.setVisibility(View.VISIBLE);
      updateAmPmDisplay(mInitialHourOfDay < 12 ? AM : PM);
      mAmPmHitspace.setOnClickListener(
          new OnClickListener() {
            @Override
            public void onClick(View v) {
              tryVibrate();
              int amOrPm = mTimePicker.getIsCurrentlyAmOrPm();
              if (amOrPm == AM) {
                amOrPm = PM;
              } else if (amOrPm == PM) {
                amOrPm = AM;
              }
              updateAmPmDisplay(amOrPm);
              mTimePicker.setAmOrPm(amOrPm);
            }
          });
    }

    mAllowAutoAdvance = true;
    setHour(mInitialHourOfDay, true);
    setMinute(mInitialMinute);

    // Set up for keyboard mode.
    mDoublePlaceholderText = res.getString(R.string.time_placeholder);
    mDeletedKeyFormat = res.getString(R.string.deleted_key);
    mPlaceholderText = mDoublePlaceholderText.charAt(0);
    mAmKeyCode = mPmKeyCode = -1;
    generateLegalTimesTree();
    if (mInKbMode) {
      mTypedTimes = savedInstanceState.getIntegerArrayList(KEY_TYPED_TIMES);
      tryStartingKbMode(-1);
      mHourView.invalidate();
    } else if (mTypedTimes == null) {
      mTypedTimes = new ArrayList<Integer>();
    }

    // Set the theme at the end so that the initialize()s above don't counteract the theme.
    mTimePicker.setTheme(themeColors);

    // Set the colors for each view based on the theme.
    view.findViewById(R.id.time_display_background).setBackgroundColor(headerBgColor);
    view.findViewById(R.id.ok_cancel_buttons_layout).setBackgroundColor(buttonBgColor);
    view.findViewById(R.id.time_display).setBackgroundColor(headerBgColor);
    view.findViewById(R.id.time_picker_error_holder).setBackgroundColor(headerBgColor);
    ((TextView) view.findViewById(R.id.separator)).setTextColor(mUnselectedColor);
    ((TextView) view.findViewById(R.id.ampm_label)).setTextColor(mUnselectedColor);
    mTimePicker.setBackgroundColor(bodyBgColor);
    return view;
  }