| /* |
| * 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 android.widget; |
| |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.content.res.ColorStateList; |
| import android.content.res.Resources; |
| import android.content.res.TypedArray; |
| import android.os.Parcelable; |
| import android.text.SpannableStringBuilder; |
| import android.text.format.DateFormat; |
| import android.text.format.DateUtils; |
| import android.text.style.TtsSpan; |
| import android.util.AttributeSet; |
| import android.util.StateSet; |
| import android.view.HapticFeedbackConstants; |
| import android.view.LayoutInflater; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.view.View.AccessibilityDelegate; |
| import android.view.View.MeasureSpec; |
| import android.view.ViewGroup; |
| import android.view.accessibility.AccessibilityEvent; |
| import android.view.accessibility.AccessibilityNodeInfo; |
| import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction; |
| import android.widget.RadialTimePickerView.OnValueSelectedListener; |
| |
| import com.android.internal.R; |
| import com.android.internal.widget.NumericTextView; |
| import com.android.internal.widget.NumericTextView.OnValueChangedListener; |
| |
| import java.util.Calendar; |
| |
| /** |
| * A delegate implementing the radial clock-based TimePicker. |
| */ |
| class TimePickerClockDelegate extends TimePicker.AbstractTimePickerDelegate { |
| /** |
| * Delay in milliseconds before valid but potentially incomplete, for |
| * example "1" but not "12", keyboard edits are propagated from the |
| * hour / minute fields to the radial picker. |
| */ |
| private static final long DELAY_COMMIT_MILLIS = 2000; |
| |
| // Index used by RadialPickerLayout |
| private static final int HOUR_INDEX = RadialTimePickerView.HOURS; |
| private static final int MINUTE_INDEX = RadialTimePickerView.MINUTES; |
| |
| // NOT a real index for the purpose of what's showing. |
| private static final int AMPM_INDEX = 2; |
| |
| private static final int[] ATTRS_TEXT_COLOR = new int[] {R.attr.textColor}; |
| private static final int[] ATTRS_DISABLED_ALPHA = new int[] {R.attr.disabledAlpha}; |
| |
| private static final int AM = 0; |
| private static final int PM = 1; |
| |
| private static final int HOURS_IN_HALF_DAY = 12; |
| |
| private final NumericTextView mHourView; |
| private final NumericTextView mMinuteView; |
| private final View mAmPmLayout; |
| private final RadioButton mAmLabel; |
| private final RadioButton mPmLabel; |
| private final RadialTimePickerView mRadialTimePickerView; |
| private final TextView mSeparatorView; |
| |
| private final Calendar mTempCalendar; |
| |
| // Accessibility strings. |
| private final String mSelectHours; |
| private final String mSelectMinutes; |
| |
| private boolean mIsEnabled = true; |
| private boolean mAllowAutoAdvance; |
| private int mCurrentHour; |
| private int mCurrentMinute; |
| private boolean mIs24Hour; |
| private boolean mIsAmPmAtStart; |
| |
| // Localization data. |
| private boolean mHourFormatShowLeadingZero; |
| private boolean mHourFormatStartsAtZero; |
| |
| // Most recent time announcement values for accessibility. |
| private CharSequence mLastAnnouncedText; |
| private boolean mLastAnnouncedIsHour; |
| |
| public TimePickerClockDelegate(TimePicker delegator, Context context, AttributeSet attrs, |
| int defStyleAttr, int defStyleRes) { |
| super(delegator, context); |
| |
| // process style attributes |
| final TypedArray a = mContext.obtainStyledAttributes(attrs, |
| R.styleable.TimePicker, defStyleAttr, defStyleRes); |
| final LayoutInflater inflater = (LayoutInflater) mContext.getSystemService( |
| Context.LAYOUT_INFLATER_SERVICE); |
| final Resources res = mContext.getResources(); |
| |
| mSelectHours = res.getString(R.string.select_hours); |
| mSelectMinutes = res.getString(R.string.select_minutes); |
| |
| final int layoutResourceId = a.getResourceId(R.styleable.TimePicker_internalLayout, |
| R.layout.time_picker_material); |
| final View mainView = inflater.inflate(layoutResourceId, delegator); |
| final View headerView = mainView.findViewById(R.id.time_header); |
| headerView.setOnTouchListener(new NearestTouchDelegate()); |
| |
| // Set up hour/minute labels. |
| mHourView = (NumericTextView) mainView.findViewById(R.id.hours); |
| mHourView.setOnClickListener(mClickListener); |
| mHourView.setOnFocusChangeListener(mFocusListener); |
| mHourView.setOnDigitEnteredListener(mDigitEnteredListener); |
| mHourView.setAccessibilityDelegate( |
| new ClickActionDelegate(context, R.string.select_hours)); |
| mSeparatorView = (TextView) mainView.findViewById(R.id.separator); |
| mMinuteView = (NumericTextView) mainView.findViewById(R.id.minutes); |
| mMinuteView.setOnClickListener(mClickListener); |
| mMinuteView.setOnFocusChangeListener(mFocusListener); |
| mMinuteView.setOnDigitEnteredListener(mDigitEnteredListener); |
| mMinuteView.setAccessibilityDelegate( |
| new ClickActionDelegate(context, R.string.select_minutes)); |
| mMinuteView.setRange(0, 59); |
| |
| // Set up AM/PM labels. |
| mAmPmLayout = mainView.findViewById(R.id.ampm_layout); |
| mAmPmLayout.setOnTouchListener(new NearestTouchDelegate()); |
| |
| final String[] amPmStrings = TimePicker.getAmPmStrings(context); |
| mAmLabel = (RadioButton) mAmPmLayout.findViewById(R.id.am_label); |
| mAmLabel.setText(obtainVerbatim(amPmStrings[0])); |
| mAmLabel.setOnClickListener(mClickListener); |
| ensureMinimumTextWidth(mAmLabel); |
| |
| mPmLabel = (RadioButton) mAmPmLayout.findViewById(R.id.pm_label); |
| mPmLabel.setText(obtainVerbatim(amPmStrings[1])); |
| mPmLabel.setOnClickListener(mClickListener); |
| ensureMinimumTextWidth(mPmLabel); |
| |
| // For the sake of backwards compatibility, attempt to extract the text |
| // color from the header time text appearance. If it's set, we'll let |
| // that override the "real" header text color. |
| ColorStateList headerTextColor = null; |
| |
| @SuppressWarnings("deprecation") |
| final int timeHeaderTextAppearance = a.getResourceId( |
| R.styleable.TimePicker_headerTimeTextAppearance, 0); |
| if (timeHeaderTextAppearance != 0) { |
| final TypedArray textAppearance = mContext.obtainStyledAttributes(null, |
| ATTRS_TEXT_COLOR, 0, timeHeaderTextAppearance); |
| final ColorStateList legacyHeaderTextColor = textAppearance.getColorStateList(0); |
| headerTextColor = applyLegacyColorFixes(legacyHeaderTextColor); |
| textAppearance.recycle(); |
| } |
| |
| if (headerTextColor == null) { |
| headerTextColor = a.getColorStateList(R.styleable.TimePicker_headerTextColor); |
| } |
| |
| if (headerTextColor != null) { |
| mHourView.setTextColor(headerTextColor); |
| mSeparatorView.setTextColor(headerTextColor); |
| mMinuteView.setTextColor(headerTextColor); |
| mAmLabel.setTextColor(headerTextColor); |
| mPmLabel.setTextColor(headerTextColor); |
| } |
| |
| // Set up header background, if available. |
| if (a.hasValueOrEmpty(R.styleable.TimePicker_headerBackground)) { |
| headerView.setBackground(a.getDrawable(R.styleable.TimePicker_headerBackground)); |
| } |
| |
| a.recycle(); |
| |
| mRadialTimePickerView = (RadialTimePickerView) mainView.findViewById(R.id.radial_picker); |
| mRadialTimePickerView.applyAttributes(attrs, defStyleAttr, defStyleRes); |
| mRadialTimePickerView.setOnValueSelectedListener(mOnValueSelectedListener); |
| |
| mAllowAutoAdvance = true; |
| |
| updateHourFormat(); |
| |
| // Initialize with current time. |
| mTempCalendar = Calendar.getInstance(mLocale); |
| final int currentHour = mTempCalendar.get(Calendar.HOUR_OF_DAY); |
| final int currentMinute = mTempCalendar.get(Calendar.MINUTE); |
| initialize(currentHour, currentMinute, mIs24Hour, HOUR_INDEX); |
| } |
| |
| /** |
| * Ensures that a TextView is wide enough to contain its text without |
| * wrapping or clipping. Measures the specified view and sets the minimum |
| * width to the view's desired width. |
| * |
| * @param v the text view to measure |
| */ |
| private static void ensureMinimumTextWidth(TextView v) { |
| v.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED); |
| |
| // Set both the TextView and the View version of minimum |
| // width because they are subtly different. |
| final int minWidth = v.getMeasuredWidth(); |
| v.setMinWidth(minWidth); |
| v.setMinimumWidth(minWidth); |
| } |
| |
| /** |
| * Updates hour formatting based on the current locale and 24-hour mode. |
| * <p> |
| * Determines how the hour should be formatted, sets member variables for |
| * leading zero and starting hour, and sets the hour view's presentation. |
| */ |
| private void updateHourFormat() { |
| final String bestDateTimePattern = DateFormat.getBestDateTimePattern( |
| mLocale, mIs24Hour ? "Hm" : "hm"); |
| final int lengthPattern = bestDateTimePattern.length(); |
| boolean showLeadingZero = false; |
| char hourFormat = '\0'; |
| |
| for (int i = 0; i < lengthPattern; i++) { |
| final char c = bestDateTimePattern.charAt(i); |
| if (c == 'H' || c == 'h' || c == 'K' || c == 'k') { |
| hourFormat = c; |
| if (i + 1 < lengthPattern && c == bestDateTimePattern.charAt(i + 1)) { |
| showLeadingZero = true; |
| } |
| break; |
| } |
| } |
| |
| mHourFormatShowLeadingZero = showLeadingZero; |
| mHourFormatStartsAtZero = hourFormat == 'K' || hourFormat == 'H'; |
| |
| // Update hour text field. |
| final int minHour = mHourFormatStartsAtZero ? 0 : 1; |
| final int maxHour = (mIs24Hour ? 23 : 11) + minHour; |
| mHourView.setRange(minHour, maxHour); |
| mHourView.setShowLeadingZeroes(mHourFormatShowLeadingZero); |
| } |
| |
| private static final CharSequence obtainVerbatim(String text) { |
| return new SpannableStringBuilder().append(text, |
| new TtsSpan.VerbatimBuilder(text).build(), 0); |
| } |
| |
| /** |
| * The legacy text color might have been poorly defined. Ensures that it |
| * has an appropriate activated state, using the selected state if one |
| * exists or modifying the default text color otherwise. |
| * |
| * @param color a legacy text color, or {@code null} |
| * @return a color state list with an appropriate activated state, or |
| * {@code null} if a valid activated state could not be generated |
| */ |
| @Nullable |
| private ColorStateList applyLegacyColorFixes(@Nullable ColorStateList color) { |
| if (color == null || color.hasState(R.attr.state_activated)) { |
| return color; |
| } |
| |
| final int activatedColor; |
| final int defaultColor; |
| if (color.hasState(R.attr.state_selected)) { |
| activatedColor = color.getColorForState(StateSet.get( |
| StateSet.VIEW_STATE_ENABLED | StateSet.VIEW_STATE_SELECTED), 0); |
| defaultColor = color.getColorForState(StateSet.get( |
| StateSet.VIEW_STATE_ENABLED), 0); |
| } else { |
| activatedColor = color.getDefaultColor(); |
| |
| // Generate a non-activated color using the disabled alpha. |
| final TypedArray ta = mContext.obtainStyledAttributes(ATTRS_DISABLED_ALPHA); |
| final float disabledAlpha = ta.getFloat(0, 0.30f); |
| defaultColor = multiplyAlphaComponent(activatedColor, disabledAlpha); |
| } |
| |
| if (activatedColor == 0 || defaultColor == 0) { |
| // We somehow failed to obtain the colors. |
| return null; |
| } |
| |
| final int[][] stateSet = new int[][] {{ R.attr.state_activated }, {}}; |
| final int[] colors = new int[] { activatedColor, defaultColor }; |
| return new ColorStateList(stateSet, colors); |
| } |
| |
| private int multiplyAlphaComponent(int color, float alphaMod) { |
| final int srcRgb = color & 0xFFFFFF; |
| final int srcAlpha = (color >> 24) & 0xFF; |
| final int dstAlpha = (int) (srcAlpha * alphaMod + 0.5f); |
| return srcRgb | (dstAlpha << 24); |
| } |
| |
| private static class ClickActionDelegate extends AccessibilityDelegate { |
| private final AccessibilityAction mClickAction; |
| |
| public ClickActionDelegate(Context context, int resId) { |
| mClickAction = new AccessibilityAction( |
| AccessibilityNodeInfo.ACTION_CLICK, context.getString(resId)); |
| } |
| |
| @Override |
| public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { |
| super.onInitializeAccessibilityNodeInfo(host, info); |
| |
| info.addAction(mClickAction); |
| } |
| } |
| |
| private void initialize(int hourOfDay, int minute, boolean is24HourView, int index) { |
| mCurrentHour = hourOfDay; |
| mCurrentMinute = minute; |
| mIs24Hour = is24HourView; |
| updateUI(index); |
| } |
| |
| private void updateUI(int index) { |
| updateHeaderAmPm(); |
| updateHeaderHour(mCurrentHour, false); |
| updateHeaderSeparator(); |
| updateHeaderMinute(mCurrentMinute, false); |
| updateRadialPicker(index); |
| |
| mDelegator.invalidate(); |
| } |
| |
| private void updateRadialPicker(int index) { |
| mRadialTimePickerView.initialize(mCurrentHour, mCurrentMinute, mIs24Hour); |
| setCurrentItemShowing(index, false, true); |
| } |
| |
| private void updateHeaderAmPm() { |
| if (mIs24Hour) { |
| mAmPmLayout.setVisibility(View.GONE); |
| } else { |
| // Ensure that AM/PM layout is in the correct position. |
| final String dateTimePattern = DateFormat.getBestDateTimePattern(mLocale, "hm"); |
| final boolean isAmPmAtStart = dateTimePattern.startsWith("a"); |
| setAmPmAtStart(isAmPmAtStart); |
| |
| updateAmPmLabelStates(mCurrentHour < 12 ? AM : PM); |
| } |
| } |
| |
| private void setAmPmAtStart(boolean isAmPmAtStart) { |
| if (mIsAmPmAtStart != isAmPmAtStart) { |
| mIsAmPmAtStart = isAmPmAtStart; |
| |
| final RelativeLayout.LayoutParams params = |
| (RelativeLayout.LayoutParams) mAmPmLayout.getLayoutParams(); |
| if (params.getRule(RelativeLayout.RIGHT_OF) != 0 || |
| params.getRule(RelativeLayout.LEFT_OF) != 0) { |
| if (isAmPmAtStart) { |
| params.removeRule(RelativeLayout.RIGHT_OF); |
| params.addRule(RelativeLayout.LEFT_OF, mHourView.getId()); |
| } else { |
| params.removeRule(RelativeLayout.LEFT_OF); |
| params.addRule(RelativeLayout.RIGHT_OF, mMinuteView.getId()); |
| } |
| } |
| |
| mAmPmLayout.setLayoutParams(params); |
| } |
| } |
| |
| /** |
| * Set the current hour. |
| */ |
| @Override |
| public void setHour(int hour) { |
| setHourInternal(hour, false, true); |
| } |
| |
| private void setHourInternal(int hour, boolean isFromPicker, boolean announce) { |
| if (mCurrentHour == hour) { |
| return; |
| } |
| |
| mCurrentHour = hour; |
| updateHeaderHour(hour, announce); |
| updateHeaderAmPm(); |
| |
| if (!isFromPicker) { |
| mRadialTimePickerView.setCurrentHour(hour); |
| mRadialTimePickerView.setAmOrPm(hour < 12 ? AM : PM); |
| } |
| |
| mDelegator.invalidate(); |
| onTimeChanged(); |
| } |
| |
| /** |
| * @return the current hour in the range (0-23) |
| */ |
| @Override |
| public int getHour() { |
| final int currentHour = mRadialTimePickerView.getCurrentHour(); |
| if (mIs24Hour) { |
| return currentHour; |
| } |
| |
| if (mRadialTimePickerView.getAmOrPm() == PM) { |
| return (currentHour % HOURS_IN_HALF_DAY) + HOURS_IN_HALF_DAY; |
| } else { |
| return currentHour % HOURS_IN_HALF_DAY; |
| } |
| } |
| |
| /** |
| * Set the current minute (0-59). |
| */ |
| @Override |
| public void setMinute(int minute) { |
| setMinuteInternal(minute, false); |
| } |
| |
| private void setMinuteInternal(int minute, boolean isFromPicker) { |
| if (mCurrentMinute == minute) { |
| return; |
| } |
| |
| mCurrentMinute = minute; |
| updateHeaderMinute(minute, true); |
| |
| if (!isFromPicker) { |
| mRadialTimePickerView.setCurrentMinute(minute); |
| } |
| |
| mDelegator.invalidate(); |
| onTimeChanged(); |
| } |
| |
| /** |
| * @return The current minute. |
| */ |
| @Override |
| public int getMinute() { |
| return mRadialTimePickerView.getCurrentMinute(); |
| } |
| |
| /** |
| * Sets whether time is displayed in 24-hour mode or 12-hour mode with |
| * AM/PM indicators. |
| * |
| * @param is24Hour {@code true} to display time in 24-hour mode or |
| * {@code false} for 12-hour mode with AM/PM |
| */ |
| public void setIs24Hour(boolean is24Hour) { |
| if (mIs24Hour != is24Hour) { |
| mIs24Hour = is24Hour; |
| mCurrentHour = getHour(); |
| |
| updateHourFormat(); |
| updateUI(mRadialTimePickerView.getCurrentItemShowing()); |
| } |
| } |
| |
| /** |
| * @return {@code true} if time is displayed in 24-hour mode, or |
| * {@code false} if time is displayed in 12-hour mode with AM/PM |
| * indicators |
| */ |
| @Override |
| public boolean is24Hour() { |
| return mIs24Hour; |
| } |
| |
| @Override |
| public void setOnTimeChangedListener(TimePicker.OnTimeChangedListener callback) { |
| mOnTimeChangedListener = callback; |
| } |
| |
| @Override |
| public void setEnabled(boolean enabled) { |
| mHourView.setEnabled(enabled); |
| mMinuteView.setEnabled(enabled); |
| mAmLabel.setEnabled(enabled); |
| mPmLabel.setEnabled(enabled); |
| mRadialTimePickerView.setEnabled(enabled); |
| mIsEnabled = enabled; |
| } |
| |
| @Override |
| public boolean isEnabled() { |
| return mIsEnabled; |
| } |
| |
| @Override |
| public int getBaseline() { |
| // does not support baseline alignment |
| return -1; |
| } |
| |
| @Override |
| public Parcelable onSaveInstanceState(Parcelable superState) { |
| return new SavedState(superState, getHour(), getMinute(), |
| is24Hour(), getCurrentItemShowing()); |
| } |
| |
| @Override |
| public void onRestoreInstanceState(Parcelable state) { |
| if (state instanceof SavedState) { |
| final SavedState ss = (SavedState) state; |
| initialize(ss.getHour(), ss.getMinute(), ss.is24HourMode(), ss.getCurrentItemShowing()); |
| mRadialTimePickerView.invalidate(); |
| } |
| } |
| |
| @Override |
| public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { |
| onPopulateAccessibilityEvent(event); |
| return true; |
| } |
| |
| @Override |
| public void onPopulateAccessibilityEvent(AccessibilityEvent event) { |
| int flags = DateUtils.FORMAT_SHOW_TIME; |
| if (mIs24Hour) { |
| flags |= DateUtils.FORMAT_24HOUR; |
| } else { |
| flags |= DateUtils.FORMAT_12HOUR; |
| } |
| |
| mTempCalendar.set(Calendar.HOUR_OF_DAY, getHour()); |
| mTempCalendar.set(Calendar.MINUTE, getMinute()); |
| |
| final String selectedTime = DateUtils.formatDateTime(mContext, |
| mTempCalendar.getTimeInMillis(), flags); |
| final String selectionMode = mRadialTimePickerView.getCurrentItemShowing() == HOUR_INDEX ? |
| mSelectHours : mSelectMinutes; |
| event.getText().add(selectedTime + " " + selectionMode); |
| } |
| |
| /** |
| * @return the index of the current item showing |
| */ |
| private int getCurrentItemShowing() { |
| return mRadialTimePickerView.getCurrentItemShowing(); |
| } |
| |
| /** |
| * Propagate the time change |
| */ |
| private void onTimeChanged() { |
| mDelegator.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_SELECTED); |
| if (mOnTimeChangedListener != null) { |
| mOnTimeChangedListener.onTimeChanged(mDelegator, getHour(), getMinute()); |
| } |
| } |
| |
| private void tryVibrate() { |
| mDelegator.performHapticFeedback(HapticFeedbackConstants.CLOCK_TICK); |
| } |
| |
| private void updateAmPmLabelStates(int amOrPm) { |
| final boolean isAm = amOrPm == AM; |
| mAmLabel.setActivated(isAm); |
| mAmLabel.setChecked(isAm); |
| |
| final boolean isPm = amOrPm == PM; |
| mPmLabel.setActivated(isPm); |
| mPmLabel.setChecked(isPm); |
| } |
| |
| /** |
| * Converts hour-of-day (0-23) time into a localized hour number. |
| * <p> |
| * The localized value may be in the range (0-23), (1-24), (0-11), or |
| * (1-12) depending on the locale. This method does not handle leading |
| * zeroes. |
| * |
| * @param hourOfDay the hour-of-day (0-23) |
| * @return a localized hour number |
| */ |
| private int getLocalizedHour(int hourOfDay) { |
| if (!mIs24Hour) { |
| // Convert to hour-of-am-pm. |
| hourOfDay %= 12; |
| } |
| |
| if (!mHourFormatStartsAtZero && hourOfDay == 0) { |
| // Convert to clock-hour (either of-day or of-am-pm). |
| hourOfDay = mIs24Hour ? 24 : 12; |
| } |
| |
| return hourOfDay; |
| } |
| |
| private void updateHeaderHour(int hourOfDay, boolean announce) { |
| final int localizedHour = getLocalizedHour(hourOfDay); |
| mHourView.setValue(localizedHour); |
| |
| if (announce) { |
| tryAnnounceForAccessibility(mHourView.getText(), true); |
| } |
| } |
| |
| private void updateHeaderMinute(int minuteOfHour, boolean announce) { |
| mMinuteView.setValue(minuteOfHour); |
| |
| if (announce) { |
| tryAnnounceForAccessibility(mMinuteView.getText(), false); |
| } |
| } |
| |
| /** |
| * The time separator is defined in the Unicode CLDR and cannot be supposed to be ":". |
| * |
| * See http://unicode.org/cldr/trac/browser/trunk/common/main |
| * |
| * We pass the correct "skeleton" depending on 12 or 24 hours view and then extract the |
| * separator as the character which is just after the hour marker in the returned pattern. |
| */ |
| private void updateHeaderSeparator() { |
| final String bestDateTimePattern = DateFormat.getBestDateTimePattern(mLocale, |
| (mIs24Hour) ? "Hm" : "hm"); |
| final String separatorText; |
| // See http://www.unicode.org/reports/tr35/tr35-dates.html for hour formats |
| final char[] hourFormats = {'H', 'h', 'K', 'k'}; |
| int hIndex = lastIndexOfAny(bestDateTimePattern, hourFormats); |
| if (hIndex == -1) { |
| // Default case |
| separatorText = ":"; |
| } else { |
| separatorText = Character.toString(bestDateTimePattern.charAt(hIndex + 1)); |
| } |
| mSeparatorView.setText(separatorText); |
| } |
| |
| static private int lastIndexOfAny(String str, char[] any) { |
| final int lengthAny = any.length; |
| if (lengthAny > 0) { |
| for (int i = str.length() - 1; i >= 0; i--) { |
| char c = str.charAt(i); |
| for (int j = 0; j < lengthAny; j++) { |
| if (c == any[j]) { |
| return i; |
| } |
| } |
| } |
| } |
| return -1; |
| } |
| |
| private void tryAnnounceForAccessibility(CharSequence text, boolean isHour) { |
| if (mLastAnnouncedIsHour != isHour || !text.equals(mLastAnnouncedText)) { |
| // TODO: Find a better solution, potentially live regions? |
| mDelegator.announceForAccessibility(text); |
| mLastAnnouncedText = text; |
| mLastAnnouncedIsHour = isHour; |
| } |
| } |
| |
| /** |
| * Show either Hours or Minutes. |
| */ |
| private void setCurrentItemShowing(int index, boolean animateCircle, boolean announce) { |
| mRadialTimePickerView.setCurrentItemShowing(index, animateCircle); |
| |
| if (index == HOUR_INDEX) { |
| if (announce) { |
| mDelegator.announceForAccessibility(mSelectHours); |
| } |
| } else { |
| if (announce) { |
| mDelegator.announceForAccessibility(mSelectMinutes); |
| } |
| } |
| |
| mHourView.setActivated(index == HOUR_INDEX); |
| mMinuteView.setActivated(index == MINUTE_INDEX); |
| } |
| |
| private void setAmOrPm(int amOrPm) { |
| updateAmPmLabelStates(amOrPm); |
| |
| if (mRadialTimePickerView.setAmOrPm(amOrPm)) { |
| mCurrentHour = getHour(); |
| |
| if (mOnTimeChangedListener != null) { |
| mOnTimeChangedListener.onTimeChanged(mDelegator, getHour(), getMinute()); |
| } |
| } |
| } |
| |
| /** Listener for RadialTimePickerView interaction. */ |
| private final OnValueSelectedListener mOnValueSelectedListener = new OnValueSelectedListener() { |
| @Override |
| public void onValueSelected(int pickerIndex, int newValue, boolean autoAdvance) { |
| switch (pickerIndex) { |
| case HOUR_INDEX: |
| final boolean isTransition = mAllowAutoAdvance && autoAdvance; |
| setHourInternal(newValue, true, !isTransition); |
| if (isTransition) { |
| setCurrentItemShowing(MINUTE_INDEX, true, false); |
| mDelegator.announceForAccessibility(newValue + ". " + mSelectMinutes); |
| } |
| break; |
| case MINUTE_INDEX: |
| setMinuteInternal(newValue, true); |
| break; |
| case AMPM_INDEX: |
| updateAmPmLabelStates(newValue); |
| break; |
| } |
| |
| if (mOnTimeChangedListener != null) { |
| mOnTimeChangedListener.onTimeChanged(mDelegator, getHour(), getMinute()); |
| } |
| } |
| }; |
| |
| /** Listener for keyboard interaction. */ |
| private final OnValueChangedListener mDigitEnteredListener = new OnValueChangedListener() { |
| @Override |
| public void onValueChanged(NumericTextView view, int value, |
| boolean isValid, boolean isFinished) { |
| final Runnable commitCallback; |
| final View nextFocusTarget; |
| if (view == mHourView) { |
| commitCallback = mCommitHour; |
| nextFocusTarget = view.isFocused() ? mMinuteView : null; |
| } else if (view == mMinuteView) { |
| commitCallback = mCommitMinute; |
| nextFocusTarget = null; |
| } else { |
| return; |
| } |
| |
| view.removeCallbacks(commitCallback); |
| |
| if (isValid) { |
| if (isFinished) { |
| // Done with hours entry, make visual updates |
| // immediately and move to next focus if needed. |
| commitCallback.run(); |
| |
| if (nextFocusTarget != null) { |
| nextFocusTarget.requestFocus(); |
| } |
| } else { |
| // May still be making changes. Postpone visual |
| // updates to prevent distracting the user. |
| view.postDelayed(commitCallback, DELAY_COMMIT_MILLIS); |
| } |
| } |
| } |
| }; |
| |
| private final Runnable mCommitHour = new Runnable() { |
| @Override |
| public void run() { |
| setHour(mHourView.getValue()); |
| } |
| }; |
| |
| private final Runnable mCommitMinute = new Runnable() { |
| @Override |
| public void run() { |
| setMinute(mMinuteView.getValue()); |
| } |
| }; |
| |
| private final View.OnFocusChangeListener mFocusListener = new View.OnFocusChangeListener() { |
| @Override |
| public void onFocusChange(View v, boolean focused) { |
| if (focused) { |
| switch (v.getId()) { |
| case R.id.am_label: |
| setAmOrPm(AM); |
| break; |
| case R.id.pm_label: |
| setAmOrPm(PM); |
| break; |
| case R.id.hours: |
| setCurrentItemShowing(HOUR_INDEX, true, true); |
| break; |
| case R.id.minutes: |
| setCurrentItemShowing(MINUTE_INDEX, true, true); |
| break; |
| default: |
| // Failed to handle this click, don't vibrate. |
| return; |
| } |
| |
| tryVibrate(); |
| } |
| } |
| }; |
| |
| private final View.OnClickListener mClickListener = new View.OnClickListener() { |
| @Override |
| public void onClick(View v) { |
| |
| final int amOrPm; |
| switch (v.getId()) { |
| case R.id.am_label: |
| setAmOrPm(AM); |
| break; |
| case R.id.pm_label: |
| setAmOrPm(PM); |
| break; |
| case R.id.hours: |
| setCurrentItemShowing(HOUR_INDEX, true, true); |
| break; |
| case R.id.minutes: |
| setCurrentItemShowing(MINUTE_INDEX, true, true); |
| break; |
| default: |
| // Failed to handle this click, don't vibrate. |
| return; |
| } |
| |
| tryVibrate(); |
| } |
| }; |
| |
| /** |
| * Delegates unhandled touches in a view group to the nearest child view. |
| */ |
| private static class NearestTouchDelegate implements View.OnTouchListener { |
| private View mInitialTouchTarget; |
| |
| @Override |
| public boolean onTouch(View view, MotionEvent motionEvent) { |
| final int actionMasked = motionEvent.getActionMasked(); |
| if (actionMasked == MotionEvent.ACTION_DOWN) { |
| if (view instanceof ViewGroup) { |
| mInitialTouchTarget = findNearestChild((ViewGroup) view, |
| (int) motionEvent.getX(), (int) motionEvent.getY()); |
| } else { |
| mInitialTouchTarget = null; |
| } |
| } |
| |
| final View child = mInitialTouchTarget; |
| if (child == null) { |
| return false; |
| } |
| |
| final float offsetX = view.getScrollX() - child.getLeft(); |
| final float offsetY = view.getScrollY() - child.getTop(); |
| motionEvent.offsetLocation(offsetX, offsetY); |
| final boolean handled = child.dispatchTouchEvent(motionEvent); |
| motionEvent.offsetLocation(-offsetX, -offsetY); |
| |
| if (actionMasked == MotionEvent.ACTION_UP |
| || actionMasked == MotionEvent.ACTION_CANCEL) { |
| mInitialTouchTarget = null; |
| } |
| |
| return handled; |
| } |
| |
| private View findNearestChild(ViewGroup v, int x, int y) { |
| View bestChild = null; |
| int bestDist = Integer.MAX_VALUE; |
| |
| for (int i = 0, count = v.getChildCount(); i < count; i++) { |
| final View child = v.getChildAt(i); |
| final int dX = x - (child.getLeft() + child.getWidth() / 2); |
| final int dY = y - (child.getTop() + child.getHeight() / 2); |
| final int dist = dX * dX + dY * dY; |
| if (bestDist > dist) { |
| bestChild = child; |
| bestDist = dist; |
| } |
| } |
| |
| return bestChild; |
| } |
| } |
| } |
