/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
*/
package com.android.datetimepicker.time;
import android.animation.ObjectAnimator;
import android.app.ActionBar.LayoutParams;
import android.app.DialogFragment;
import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.Resources;
import android.os.Bundle;
import android.util.Log;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnKeyListener;
import android.view.ViewGroup;
import android.view.Window;
import android.widget.RelativeLayout;
import android.widget.TextView;
import com.android.datetimepicker.HapticFeedbackController;
import com.android.datetimepicker.R;
import com.android.datetimepicker.Utils;
import com.android.datetimepicker.time.RadialPickerLayout.OnValueSelectedListener;
import java.text.DateFormatSymbols;
import java.util.ArrayList;
import java.util.Locale;
/**
* Dialog to set a time.
*/
public class TimePickerDialog extends DialogFragment implements OnValueSelectedListener{
private static final String TAG = "TimePickerDialog";
private static final String KEY_HOUR_OF_DAY = "hour_of_day";
private static final String KEY_MINUTE = "minute";
private static final String KEY_IS_24_HOUR_VIEW = "is_24_hour_view";
private static final String KEY_CURRENT_ITEM_SHOWING = "current_item_showing";
private static final String KEY_IN_KB_MODE = "in_kb_mode";
private static final String KEY_TYPED_TIMES = "typed_times";
private static final String KEY_DARK_THEME = "dark_theme";
public static final int HOUR_INDEX = 0;
public static final int MINUTE_INDEX = 1;
// NOT a real index for the purpose of what's showing.
public static final int AMPM_INDEX = 2;
// Also NOT a real index, just used for keyboard mode.
public static final int ENABLE_PICKER_INDEX = 3;
public static final int AM = 0;
public static final int PM = 1;
// Delay before starting the pulse animation, in ms.
private static final int PULSE_ANIMATOR_DELAY = 300;
private OnTimeSetListener mCallback;
private HapticFeedbackController mHapticFeedbackController;
private TextView mDoneButton;
private TextView mHourView;
private TextView mHourSpaceView;
private TextView mMinuteView;
private TextView mMinuteSpaceView;
private TextView mAmPmTextView;
private View mAmPmHitspace;
private RadialPickerLayout mTimePicker;
private int mSelectedColor;
private int mUnselectedColor;
private String mAmText;
private String mPmText;
private boolean mAllowAutoAdvance;
private int mInitialHourOfDay;
private int mInitialMinute;
private boolean mIs24HourMode;
private boolean mThemeDark;
// For hardware IME input.
private char mPlaceholderText;
private String mDoublePlaceholderText;
private String mDeletedKeyFormat;
private boolean mInKbMode;
private ArrayList<Integer> mTypedTimes;
private Node mLegalTimesTree;
private int mAmKeyCode;
private int mPmKeyCode;
// Accessibility strings.
private String mHourPickerDescription;
private String mSelectHours;
private String mMinutePickerDescription;
private String mSelectMinutes;
/**
* The callback interface used to indicate the user is done filling in
* the time (they clicked on the 'Set' button).
*/
public interface OnTimeSetListener {
/**
* @param view The view associated with this listener.
* @param hourOfDay The hour that was set.
* @param minute The minute that was set.
*/
void onTimeSet(RadialPickerLayout view, int hourOfDay, int minute);
}
public TimePickerDialog() {
// Empty constructor required for dialog fragment.
}
public TimePickerDialog(Context context, int theme, OnTimeSetListener callback,
int hourOfDay, int minute, boolean is24HourMode) {
// Empty constructor required for dialog fragment.
}
public static TimePickerDialog newInstance(OnTimeSetListener callback,
int hourOfDay, int minute, boolean is24HourMode) {
TimePickerDialog ret = new TimePickerDialog();
ret.initialize(callback, hourOfDay, minute, is24HourMode);
return ret;
}
public void initialize(OnTimeSetListener callback,
int hourOfDay, int minute, boolean is24HourMode) {
mCallback = callback;
mInitialHourOfDay = hourOfDay;
mInitialMinute = minute;
mIs24HourMode = is24HourMode;
mInKbMode = false;
mThemeDark = false;
}
/**
* Set a dark or light theme. NOTE: this will only take effect for the next onCreateView.
*/
public void setThemeDark(boolean dark) {
mThemeDark = dark;
}
public boolean isThemeDark() {
return mThemeDark;
}
public void setOnTimeSetListener(OnTimeSetListener callback) {
mCallback = callback;
}
public void setStartTime(int hourOfDay, int minute) {
mInitialHourOfDay = hourOfDay;
mInitialMinute = minute;
mInKbMode = false;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (savedInstanceState != null && savedInstanceState.containsKey(KEY_HOUR_OF_DAY)
&& savedInstanceState.containsKey(KEY_MINUTE)
&& savedInstanceState.containsKey(KEY_IS_24_HOUR_VIEW)) {
mInitialHourOfDay = savedInstanceState.getInt(KEY_HOUR_OF_DAY);
mInitialMinute = savedInstanceState.getInt(KEY_MINUTE);
mIs24HourMode = savedInstanceState.getBoolean(KEY_IS_24_HOUR_VIEW);
mInKbMode = savedInstanceState.getBoolean(KEY_IN_KB_MODE);
mThemeDark = savedInstanceState.getBoolean(KEY_DARK_THEME);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
getDialog().getWindow().requestFeature(Window.FEATURE_NO_TITLE);
View view = inflater.inflate(R.layout.time_picker_dialog, null);
KeyboardListener keyboardListener = new KeyboardListener();
view.findViewById(R.id.time_picker_dialog).setOnKeyListener(keyboardListener);
Resources res = getResources();
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);
mSelectedColor = res.getColor(mThemeDark? R.color.red : R.color.blue);
mUnselectedColor =
res.getColor(mThemeDark? android.R.color.white : R.color.numbers_text_color);
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();
}
});
mDoneButton = (TextView) view.findViewById(R.id.done_button);
mDoneButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (mInKbMode && isTypedTimeFullyLegal()) {
finishKbMode(false);
} else {
tryVibrate();
}
if (mCallback != null) {
mCallback.onTimeSet(mTimePicker,
mTimePicker.getHours(), mTimePicker.getMinutes());
}
dismiss();
}
});
mDoneButton.setOnKeyListener(keyboardListener);
// 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(getActivity().getApplicationContext(), mThemeDark);
// Prepare some colors to use.
int white = res.getColor(android.R.color.white);
int circleBackground = res.getColor(R.color.circle_background);
int line = res.getColor(R.color.line_background);
int timeDisplay = res.getColor(R.color.numbers_text_color);
ColorStateList doneTextColor = res.getColorStateList(R.color.done_text_color);
int doneBackground = R.drawable.done_background_color;
int darkGray = res.getColor(R.color.dark_gray);
int lightGray = res.getColor(R.color.light_gray);
int darkLine = res.getColor(R.color.line_dark);
ColorStateList darkDoneTextColor = res.getColorStateList(R.color.done_text_color_dark);
int darkDoneBackground = R.drawable.done_background_color_dark;
// Set the colors for each view based on the theme.
view.findViewById(R.id.time_display_background).setBackgroundColor(mThemeDark? darkGray : white);
view.findViewById(R.id.time_display).setBackgroundColor(mThemeDark? darkGray : white);
((TextView) view.findViewById(R.id.separator)).setTextColor(mThemeDark? white : timeDisplay);
((TextView) view.findViewById(R.id.ampm_label)).setTextColor(mThemeDark? white : timeDisplay);
view.findViewById(R.id.line).setBackgroundColor(mThemeDark? darkLine : line);
mDoneButton.setTextColor(mThemeDark? darkDoneTextColor : doneTextColor);
mTimePicker.setBackgroundColor(mThemeDark? lightGray : circleBackground);
mDoneButton.setBackgroundResource(mThemeDark? darkDoneBackground : doneBackground);
return view;
}
@Override
public void onResume() {
super.onResume();
mHapticFeedbackController.start();
}
@Override
public void onPause() {
super.onPause();
mHapticFeedbackController.stop();
}
public void tryVibrate() {
mHapticFeedbackController.tryVibrate();
}
private void updateAmPmDisplay(int amOrPm) {
if (amOrPm == AM) {
mAmPmTextView.setText(mAmText);
Utils.tryAccessibilityAnnounce(mTimePicker, mAmText);
mAmPmHitspace.setContentDescription(mAmText);
} else if (amOrPm == PM){
mAmPmTextView.setText(mPmText);
Utils.tryAccessibilityAnnounce(mTimePicker, mPmText);
mAmPmHitspace.setContentDescription(mPmText);
} else {
mAmPmTextView.setText(mDoublePlaceholderText);
}
}
@Override
public void onSaveInstanceState(Bundle outState) {
if (mTimePicker != null) {
outState.putInt(KEY_HOUR_OF_DAY, mTimePicker.getHours());
outState.putInt(KEY_MINUTE, mTimePicker.getMinutes());
outState.putBoolean(KEY_IS_24_HOUR_VIEW, mIs24HourMode);
outState.putInt(KEY_CURRENT_ITEM_SHOWING, mTimePicker.getCurrentItemShowing());
outState.putBoolean(KEY_IN_KB_MODE, mInKbMode);
if (mInKbMode) {
outState.putIntegerArrayList(KEY_TYPED_TIMES, mTypedTimes);
}
outState.putBoolean(KEY_DARK_THEME, mThemeDark);
}
}
/**
* Called by the picker for updating the header display.
*/
@Override
public void onValueSelected(int pickerIndex, int newValue, boolean autoAdvance) {
if (pickerIndex == HOUR_INDEX) {
setHour(newValue, false);
String announcement = String.format("%d", newValue);
if (mAllowAutoAdvance && autoAdvance) {
setCurrentItemShowing(MINUTE_INDEX, true, true, false);
announcement += ". " + mSelectMinutes;
} else {
mTimePicker.setContentDescription(mHourPickerDescription + ": " + newValue);
}
Utils.tryAccessibilityAnnounce(mTimePicker, announcement);
} else if (pickerIndex == MINUTE_INDEX){
setMinute(newValue);
mTimePicker.setContentDescription(mMinutePickerDescription + ": " + newValue);
} else if (pickerIndex == AMPM_INDEX) {
updateAmPmDisplay(newValue);
} else if (pickerIndex == ENABLE_PICKER_INDEX) {
if (!isTypedTimeFullyLegal()) {
mTypedTimes.clear();
}
finishKbMode(true);
}
}
private void setHour(int value, boolean announce) {
String format;
if (mIs24HourMode) {
format = "%02d";
} else {
format = "%d";
value = value % 12;
if (value == 0) {
value = 12;
}
}
CharSequence text = String.format(format, value);
mHourView.setText(text);
mHourSpaceView.setText(text);
if (announce) {
Utils.tryAccessibilityAnnounce(mTimePicker, text);
}
}
private void setMinute(int value) {
if (value == 60) {
value = 0;
}
CharSequence text = String.format(Locale.getDefault(), "%02d", value);
Utils.tryAccessibilityAnnounce(mTimePicker, text);
mMinuteView.setText(text);
mMinuteSpaceView.setText(text);
}
// Show either Hours or Minutes.
private void setCurrentItemShowing(int index, boolean animateCircle, boolean delayLabelAnimate,
boolean announce) {
mTimePicker.setCurrentItemShowing(index, animateCircle);
TextView labelToAnimate;
if (index == HOUR_INDEX) {
int hours = mTimePicker.getHours();
if (!mIs24HourMode) {
hours = hours % 12;
}
mTimePicker.setContentDescription(mHourPickerDescription + ": " + hours);
if (announce) {
Utils.tryAccessibilityAnnounce(mTimePicker, mSelectHours);
}
labelToAnimate = mHourView;
} else {
int minutes = mTimePicker.getMinutes();
mTimePicker.setContentDescription(mMinutePickerDescription + ": " + minutes);
if (announce) {
Utils.tryAccessibilityAnnounce(mTimePicker, mSelectMinutes);
}
labelToAnimate = mMinuteView;
}
int hourColor = (index == HOUR_INDEX)? mSelectedColor : mUnselectedColor;
int minuteColor = (index == MINUTE_INDEX)? mSelectedColor : mUnselectedColor;
mHourView.setTextColor(hourColor);
mMinuteView.setTextColor(minuteColor);
ObjectAnimator pulseAnimator = Utils.getPulseAnimator(labelToAnimate, 0.85f, 1.1f);
if (delayLabelAnimate) {
pulseAnimator.setStartDelay(PULSE_ANIMATOR_DELAY);
}
pulseAnimator.start();
}
/**
* For keyboard mode, processes key events.
* @param keyCode the pressed key.
* @return true if the key was successfully processed, false otherwise.
*/
private boolean processKeyUp(int keyCode) {
if (keyCode == KeyEvent.KEYCODE_ESCAPE || keyCode == KeyEvent.KEYCODE_BACK) {
dismiss();
return true;
} else if (keyCode == KeyEvent.KEYCODE_TAB) {
if(mInKbMode) {
if (isTypedTimeFullyLegal()) {
finishKbMode(true);
}
return true;
}
} else if (keyCode == KeyEvent.KEYCODE_ENTER) {
if (mInKbMode) {
if (!isTypedTimeFullyLegal()) {
return true;
}
finishKbMode(false);
}
if (mCallback != null) {
mCallback.onTimeSet(mTimePicker,
mTimePicker.getHours(), mTimePicker.getMinutes());
}
dismiss();
return true;
} else if (keyCode == KeyEvent.KEYCODE_DEL) {
if (mInKbMode) {
if (!mTypedTimes.isEmpty()) {
int deleted = deleteLastTypedKey();
String deletedKeyStr;
if (deleted == getAmOrPmKeyCode(AM)) {
deletedKeyStr = mAmText;
} else if (deleted == getAmOrPmKeyCode(PM)) {
deletedKeyStr = mPmText;
} else {
deletedKeyStr = String.format("%d", getValFromKeyCode(deleted));
}
Utils.tryAccessibilityAnnounce(mTimePicker,
String.format(mDeletedKeyFormat, deletedKeyStr));
updateDisplay(true);
}
}
} else if (keyCode == KeyEvent.KEYCODE_0 || keyCode == KeyEvent.KEYCODE_1
|| keyCode == KeyEvent.KEYCODE_2 || keyCode == KeyEvent.KEYCODE_3
|| keyCode == KeyEvent.KEYCODE_4 || keyCode == KeyEvent.KEYCODE_5
|| keyCode == KeyEvent.KEYCODE_6 || keyCode == KeyEvent.KEYCODE_7
|| keyCode == KeyEvent.KEYCODE_8 || keyCode == KeyEvent.KEYCODE_9
|| (!mIs24HourMode &&
(keyCode == getAmOrPmKeyCode(AM) || keyCode == getAmOrPmKeyCode(PM)))) {
if (!mInKbMode) {
if (mTimePicker == null) {
// Something's wrong, because time picker should definitely not be null.
Log.e(TAG, "Unable to initiate keyboard mode, TimePicker was null.");
return true;
}
mTypedTimes.clear();
tryStartingKbMode(keyCode);
return true;
}
// We're already in keyboard mode.
if (addKeyIfLegal(keyCode)) {
updateDisplay(false);
}
return true;
}
return false;
}
/**
* Try to start keyboard mode with the specified key, as long as the timepicker is not in the
* middle of a touch-event.
* @param keyCode The key to use as the first press. Keyboard mode will not be started if the
* key is not legal to start with. Or, pass in -1 to get into keyboard mode without a starting
* key.
*/
private void tryStartingKbMode(int keyCode) {
if (mTimePicker.trySettingInputEnabled(false) &&
(keyCode == -1 || addKeyIfLegal(keyCode))) {
mInKbMode = true;
mDoneButton.setEnabled(false);
updateDisplay(false);
}
}
private boolean addKeyIfLegal(int keyCode) {
// If we're in 24hour mode, we'll need to check if the input is full. If in AM/PM mode,
// we'll need to see if AM/PM have been typed.
if ((mIs24HourMode && mTypedTimes.size() == 4) ||
(!mIs24HourMode && isTypedTimeFullyLegal())) {
return false;
}
mTypedTimes.add(keyCode);
if (!isTypedTimeLegalSoFar()) {
deleteLastTypedKey();
return false;
}
int val = getValFromKeyCode(keyCode);
Utils.tryAccessibilityAnnounce(mTimePicker, String.format("%d", val));
// Automatically fill in 0's if AM or PM was legally entered.
if (isTypedTimeFullyLegal()) {
if (!mIs24HourMode && mTypedTimes.size() <= 3) {
mTypedTimes.add(mTypedTimes.size() - 1, KeyEvent.KEYCODE_0);
mTypedTimes.add(mTypedTimes.size() - 1, KeyEvent.KEYCODE_0);
}
mDoneButton.setEnabled(true);
}
return true;
}
/**
* Traverse the tree to see if the keys that have been typed so far are legal as is,
* or may become legal as more keys are typed (excluding backspace).
*/
private boolean isTypedTimeLegalSoFar() {
Node node = mLegalTimesTree;
for (int keyCode : mTypedTimes) {
node = node.canReach(keyCode);
if (node == null) {
return false;
}
}
return true;
}
/**
* Check if the time that has been typed so far is completely legal, as is.
*/
private boolean isTypedTimeFullyLegal() {
if (mIs24HourMode) {
// For 24-hour mode, the time is legal if the hours and minutes are each legal. Note:
// getEnteredTime() will ONLY call isTypedTimeFullyLegal() when NOT in 24hour mode.
int[] values = getEnteredTime(null);
return (values[0] >= 0 && values[1] >= 0 && values[1] < 60);
} else {
// For AM/PM mode, the time is legal if it contains an AM or PM, as those can only be
// legally added at specific times based on the tree's algorithm.
return (mTypedTimes.contains(getAmOrPmKeyCode(AM)) ||
mTypedTimes.contains(getAmOrPmKeyCode(PM)));
}
}
private int deleteLastTypedKey() {
int deleted = mTypedTimes.remove(mTypedTimes.size() - 1);
if (!isTypedTimeFullyLegal()) {
mDoneButton.setEnabled(false);
}
return deleted;
}
/**
* Get out of keyboard mode. If there is nothing in typedTimes, revert to TimePicker's time.
* @param changeDisplays If true, update the displays with the relevant time.
*/
private void finishKbMode(boolean updateDisplays) {
mInKbMode = false;
if (!mTypedTimes.isEmpty()) {
int values[] = getEnteredTime(null);
mTimePicker.setTime(values[0], values[1]);
if (!mIs24HourMode) {
mTimePicker.setAmOrPm(values[2]);
}
mTypedTimes.clear();
}
if (updateDisplays) {
updateDisplay(false);
mTimePicker.trySettingInputEnabled(true);
}
}
/**
* Update the hours, minutes, and AM/PM displays with the typed times. If the typedTimes is
* empty, either show an empty display (filled with the placeholder text), or update from the
* timepicker's values.
* @param allowEmptyDisplay if true, then if the typedTimes is empty, use the placeholder text.
* Otherwise, revert to the timepicker's values.
*/
private void updateDisplay(boolean allowEmptyDisplay) {
if (!allowEmptyDisplay && mTypedTimes.isEmpty()) {
int hour = mTimePicker.getHours();
int minute = mTimePicker.getMinutes();
setHour(hour, true);
setMinute(minute);
if (!mIs24HourMode) {
updateAmPmDisplay(hour < 12? AM : PM);
}
setCurrentItemShowing(mTimePicker.getCurrentItemShowing(), true, true, true);
mDoneButton.setEnabled(true);
} else {
Boolean[] enteredZeros = {false, false};
int[] values = getEnteredTime(enteredZeros);
String hourFormat = enteredZeros[0]? "%02d" : "%2d";
String minuteFormat = (enteredZeros[1])? "%02d" : "%2d";
String hourStr = (values[0] == -1)? mDoublePlaceholderText :
String.format(hourFormat, values[0]).replace(' ', mPlaceholderText);
String minuteStr = (values[1] == -1)? mDoublePlaceholderText :
String.format(minuteFormat, values[1]).replace(' ', mPlaceholderText);
mHourView.setText(hourStr);
mHourSpaceView.setText(hourStr);
mHourView.setTextColor(mUnselectedColor);
mMinuteView.setText(minuteStr);
mMinuteSpaceView.setText(minuteStr);
mMinuteView.setTextColor(mUnselectedColor);
if (!mIs24HourMode) {
updateAmPmDisplay(values[2]);
}
}
}
private static int getValFromKeyCode(int keyCode) {
switch (keyCode) {
case KeyEvent.KEYCODE_0:
return 0;
case KeyEvent.KEYCODE_1:
return 1;
case KeyEvent.KEYCODE_2:
return 2;
case KeyEvent.KEYCODE_3:
return 3;
case KeyEvent.KEYCODE_4:
return 4;
case KeyEvent.KEYCODE_5:
return 5;
case KeyEvent.KEYCODE_6:
return 6;
case KeyEvent.KEYCODE_7:
return 7;
case KeyEvent.KEYCODE_8:
return 8;
case KeyEvent.KEYCODE_9:
return 9;
default:
return -1;
}
}
/**
* Get the currently-entered time, as integer values of the hours and minutes typed.
* @param enteredZeros A size-2 boolean array, which the caller should initialize, and which
* may then be used for the caller to know whether zeros had been explicitly entered as either
* hours of minutes. This is helpful for deciding whether to show the dashes, or actual 0's.
* @return A size-3 int array. The first value will be the hours, the second value will be the
* minutes, and the third will be either TimePickerDialog.AM or TimePickerDialog.PM.
*/
private int[] getEnteredTime(Boolean[] enteredZeros) {
int amOrPm = -1;
int startIndex = 1;
if (!mIs24HourMode && isTypedTimeFullyLegal()) {
int keyCode = mTypedTimes.get(mTypedTimes.size() - 1);
if (keyCode == getAmOrPmKeyCode(AM)) {
amOrPm = AM;
} else if (keyCode == getAmOrPmKeyCode(PM)){
amOrPm = PM;
}
startIndex = 2;
}
int minute = -1;
int hour = -1;
for (int i = startIndex; i <= mTypedTimes.size(); i++) {
int val = getValFromKeyCode(mTypedTimes.get(mTypedTimes.size() - i));
if (i == startIndex) {
minute = val;
} else if (i == startIndex+1) {
minute += 10*val;
if (enteredZeros != null && val == 0) {
enteredZeros[1] = true;
}
} else if (i == startIndex+2) {
hour = val;
} else if (i == startIndex+3) {
hour += 10*val;
if (enteredZeros != null && val == 0) {
enteredZeros[0] = true;
}
}
}
int[] ret = {hour, minute, amOrPm};
return ret;
}
/**
* Get the keycode value for AM and PM in the current language.
*/
private int getAmOrPmKeyCode(int amOrPm) {
// Cache the codes.
if (mAmKeyCode == -1 || mPmKeyCode == -1) {
// Find the first character in the AM/PM text that is unique.
KeyCharacterMap kcm = KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD);
char amChar;
char pmChar;
for (int i = 0; i < Math.max(mAmText.length(), mPmText.length()); i++) {
amChar = mAmText.toLowerCase(Locale.getDefault()).charAt(i);
pmChar = mPmText.toLowerCase(Locale.getDefault()).charAt(i);
if (amChar != pmChar) {
KeyEvent[] events = kcm.getEvents(new char[]{amChar, pmChar});
// There should be 4 events: a down and up for both AM and PM.
if (events != null && events.length == 4) {
mAmKeyCode = events[0].getKeyCode();
mPmKeyCode = events[2].getKeyCode();
} else {
Log.e(TAG, "Unable to find keycodes for AM and PM.");
}
break;
}
}
}
if (amOrPm == AM) {
return mAmKeyCode;
} else if (amOrPm == PM) {
return mPmKeyCode;
}
return -1;
}
/**
* Create a tree for deciding what keys can legally be typed.
*/
private void generateLegalTimesTree() {
// Create a quick cache of numbers to their keycodes.
int k0 = KeyEvent.KEYCODE_0;
int k1 = KeyEvent.KEYCODE_1;
int k2 = KeyEvent.KEYCODE_2;
int k3 = KeyEvent.KEYCODE_3;
int k4 = KeyEvent.KEYCODE_4;
int k5 = KeyEvent.KEYCODE_5;
int k6 = KeyEvent.KEYCODE_6;
int k7 = KeyEvent.KEYCODE_7;
int k8 = KeyEvent.KEYCODE_8;
int k9 = KeyEvent.KEYCODE_9;
// The root of the tree doesn't contain any numbers.
mLegalTimesTree = new Node();
if (mIs24HourMode) {
// We'll be re-using these nodes, so we'll save them.
Node minuteFirstDigit = new Node(k0, k1, k2, k3, k4, k5);
Node minuteSecondDigit = new Node(k0, k1, k2, k3, k4, k5, k6, k7, k8, k9);
// The first digit must be followed by the second digit.
minuteFirstDigit.addChild(minuteSecondDigit);
// The first digit may be 0-1.
Node firstDigit = new Node(k0, k1);
mLegalTimesTree.addChild(firstDigit);
// When the first digit is 0-1, the second digit may be 0-5.
Node secondDigit = new Node(k0, k1, k2, k3, k4, k5);
firstDigit.addChild(secondDigit);
// We may now be followed by the first minute digit. E.g. 00:09, 15:58.
secondDigit.addChild(minuteFirstDigit);
// When the first digit is 0-1, and the second digit is 0-5, the third digit may be 6-9.
Node thirdDigit = new Node(k6, k7, k8, k9);
// The time must now be finished. E.g. 0:55, 1:08.
secondDigit.addChild(thirdDigit);
// When the first digit is 0-1, the second digit may be 6-9.
secondDigit = new Node(k6, k7, k8, k9);
firstDigit.addChild(secondDigit);
// We must now be followed by the first minute digit. E.g. 06:50, 18:20.
secondDigit.addChild(minuteFirstDigit);
// The first digit may be 2.
firstDigit = new Node(k2);
mLegalTimesTree.addChild(firstDigit);
// When the first digit is 2, the second digit may be 0-3.
secondDigit = new Node(k0, k1, k2, k3);
firstDigit.addChild(secondDigit);
// We must now be followed by the first minute digit. E.g. 20:50, 23:09.
secondDigit.addChild(minuteFirstDigit);
// When the first digit is 2, the second digit may be 4-5.
secondDigit = new Node(k4, k5);
firstDigit.addChild(secondDigit);
// We must now be followd by the last minute digit. E.g. 2:40, 2:53.
secondDigit.addChild(minuteSecondDigit);
// The first digit may be 3-9.
firstDigit = new Node(k3, k4, k5, k6, k7, k8, k9);
mLegalTimesTree.addChild(firstDigit);
// We must now be followed by the first minute digit. E.g. 3:57, 8:12.
firstDigit.addChild(minuteFirstDigit);
} else {
// We'll need to use the AM/PM node a lot.
// Set up AM and PM to respond to "a" and "p".
Node ampm = new Node(getAmOrPmKeyCode(AM), getAmOrPmKeyCode(PM));
// The first hour digit may be 1.
Node firstDigit = new Node(k1);
mLegalTimesTree.addChild(firstDigit);
// We'll allow quick input of on-the-hour times. E.g. 1pm.
firstDigit.addChild(ampm);
// When the first digit is 1, the second digit may be 0-2.
Node secondDigit = new Node(k0, k1, k2);
firstDigit.addChild(secondDigit);
// Also for quick input of on-the-hour times. E.g. 10pm, 12am.
secondDigit.addChild(ampm);
// When the first digit is 1, and the second digit is 0-2, the third digit may be 0-5.
Node thirdDigit = new Node(k0, k1, k2, k3, k4, k5);
secondDigit.addChild(thirdDigit);
// The time may be finished now. E.g. 1:02pm, 1:25am.
thirdDigit.addChild(ampm);
// When the first digit is 1, the second digit is 0-2, and the third digit is 0-5,
// the fourth digit may be 0-9.
Node fourthDigit = new Node(k0, k1, k2, k3, k4, k5, k6, k7, k8, k9);
thirdDigit.addChild(fourthDigit);
// The time must be finished now. E.g. 10:49am, 12:40pm.
fourthDigit.addChild(ampm);
// When the first digit is 1, and the second digit is 0-2, the third digit may be 6-9.
thirdDigit = new Node(k6, k7, k8, k9);
secondDigit.addChild(thirdDigit);
// The time must be finished now. E.g. 1:08am, 1:26pm.
thirdDigit.addChild(ampm);
// When the first digit is 1, the second digit may be 3-5.
secondDigit = new Node(k3, k4, k5);
firstDigit.addChild(secondDigit);
// When the first digit is 1, and the second digit is 3-5, the third digit may be 0-9.
thirdDigit = new Node(k0, k1, k2, k3, k4, k5, k6, k7, k8, k9);
secondDigit.addChild(thirdDigit);
// The time must be finished now. E.g. 1:39am, 1:50pm.
thirdDigit.addChild(ampm);
// The hour digit may be 2-9.
firstDigit = new Node(k2, k3, k4, k5, k6, k7, k8, k9);
mLegalTimesTree.addChild(firstDigit);
// We'll allow quick input of on-the-hour-times. E.g. 2am, 5pm.
firstDigit.addChild(ampm);
// When the first digit is 2-9, the second digit may be 0-5.
secondDigit = new Node(k0, k1, k2, k3, k4, k5);
firstDigit.addChild(secondDigit);
// When the first digit is 2-9, and the second digit is 0-5, the third digit may be 0-9.
thirdDigit = new Node(k0, k1, k2, k3, k4, k5, k6, k7, k8, k9);
secondDigit.addChild(thirdDigit);
// The time must be finished now. E.g. 2:57am, 9:30pm.
thirdDigit.addChild(ampm);
}
}
/**
* Simple node class to be used for traversal to check for legal times.
* mLegalKeys represents the keys that can be typed to get to the node.
* mChildren are the children that can be reached from this node.
*/
private class Node {
private int[] mLegalKeys;
private ArrayList<Node> mChildren;
public Node(int... legalKeys) {
mLegalKeys = legalKeys;
mChildren = new ArrayList<Node>();
}
public void addChild(Node child) {
mChildren.add(child);
}
public boolean containsKey(int key) {
for (int i = 0; i < mLegalKeys.length; i++) {
if (mLegalKeys[i] == key) {
return true;
}
}
return false;
}
public Node canReach(int key) {
if (mChildren == null) {
return null;
}
for (Node child : mChildren) {
if (child.containsKey(key)) {
return child;
}
}
return null;
}
}
private class KeyboardListener implements OnKeyListener {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_UP) {
return processKeyUp(keyCode);
}
return false;
}
}
}