Example usage for android.view.accessibility AccessibilityEvent getItemCount

Introduction

In this page you can find the example usage for android.view.accessibility AccessibilityEvent getItemCount.

Prototype

public int getItemCount() 

Source Link

Document

Gets the number of items that can be visited.

Usage

From source file:com.android.screenspeak.eventprocessor.ProcessorScrollPosition.java

private CharSequence getDescriptionForScrollEvent(AccessibilityEvent event) {
    // If the event has text, use that by default.
    final CharSequence text = AccessibilityEventUtils.getEventTextOrDescription(event);
    if (!TextUtils.isEmpty(text)) {
        return text;
    }/*from  ww  w  .  j  a va  2s . c  om*/

    // If the from index or item count are invalid, don't announce anything.
    final int fromIndex = (event.getFromIndex() + 1);
    final int itemCount = event.getItemCount();
    if ((fromIndex <= 0) || (itemCount <= 0)) {
        return null;
    }

    // If the to and from indices are the same, or if the to index is
    // invalid, only announce the item at the from index.
    final int toIndex = event.getToIndex() + 1;
    if ((fromIndex == toIndex) || (toIndex <= 0) || (toIndex > itemCount)) {
        return mContext.getString(R.string.template_scroll_from_count, fromIndex, itemCount);
    }

    // Announce the range of visible items.
    return mContext.getString(R.string.template_scroll_from_to_count, fromIndex, toIndex, itemCount);
}

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From source file:com.google.android.marvin.mytalkback.ProcessorScrollPosition.java

private CharSequence getDescriptionForScrollEvent(AccessibilityEvent event) {
    // If the event has text, use that by default.
    final CharSequence text = AccessibilityEventUtils.getEventTextOrDescription(event);
    if (!TextUtils.isEmpty(text)) {
        return text;
    }/*from ww w .jav a  2s .c o  m*/

    // If the from index or item count are invalid, don't announce anything.
    final int fromIndex = (event.getFromIndex() + 1);
    final int itemCount = event.getItemCount();
    if ((fromIndex < 0) || (itemCount <= 0)) {
        return null;
    }

    // If the to and from indices are the same, or if the to index is
    // invalid, only announce the item at the from index.
    final int toIndex = (AccessibilityEventCompatUtils.getToIndex(event) + 1);
    if ((fromIndex == toIndex) || (toIndex <= 0) || (toIndex > itemCount)) {
        return mContext.getString(R.string.template_scroll_from_count, fromIndex, itemCount);
    }

    // Announce the range of visible items.
    return mContext.getString(R.string.template_scroll_from_to_count, fromIndex, toIndex, itemCount);
}

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From source file:com.android.screenspeak.speechrules.RuleSeekBar.java

@Override
public CharSequence format(Context context, AccessibilityNodeInfoCompat node, AccessibilityEvent event) {
    if (node == null || !node.isAccessibilityFocused()) {
        return "";
    }// w  w  w.j av  a  2s .  co m

    final SpannableStringBuilder output = new SpannableStringBuilder();
    final CharSequence text = super.format(context, node, event);
    final String formattedText = context.getString(R.string.template_seek_bar, text);
    final Spannable spannableFormattedText = StringBuilderUtils
            .createSpannableFromTextWithTemplate(formattedText, text);

    StringBuilderUtils.appendWithSeparator(output, spannableFormattedText);

    // TODO: We need to be getting this information from the node.
    if ((event != null) && (event.getItemCount() > 0)) {
        final int percent = (100 * event.getCurrentItemIndex()) / event.getItemCount();
        final CharSequence formattedPercent = context.getString(R.string.template_percent, percent);

        StringBuilderUtils.appendWithSeparator(output, formattedPercent);
    }

    return output;
}

---

From source file:com.google.android.marvin.mytalkback.ProcessorScrollPosition.java

private CharSequence getDescriptionForSeekEvent(AccessibilityEvent event) {
    // If the event has text, use that by default.
    final CharSequence text = AccessibilityEventUtils.getEventTextOrDescription(event);
    if (!TextUtils.isEmpty(text)) {
        return text;
    }/*from w  w  w. j a va 2  s .  c  o  m*/

    // If the current index or item count are invalid, don't announce anything.
    final int currentItemIndex = event.getCurrentItemIndex();
    final int itemCount = event.getItemCount();
    if ((currentItemIndex < 0) || (currentItemIndex > itemCount)) {
        return null;
    }

    // Announce the percentage.
    final int percentage = (100 * currentItemIndex / itemCount);
    return mContext.getString(R.string.template_percent, percentage);
}

---

From source file:Main.java

/**
 * @return If the <code>first</code> event is equal to the <code>second</code>.
 *///from w w  w  . j  a v  a 2  s  .c om
public static boolean eventEquals(AccessibilityEvent first, AccessibilityEvent second) {
    // TODO: The framework should implement AccessibilityEvent#equals()
    if (first == null || second == null) {
        return false;
    }
    if (first.getEventType() != second.getEventType()) {
        return false;
    }
    if (first.getPackageName() == null) {
        if (second.getPackageName() != null) {
            return false;
        }
    } else if (!first.getPackageName().equals(second.getPackageName())) {
        return false;
    }
    if (first.getClassName() == null) {
        if (second.getClassName() != null) {
            return false;
        }
    } else if (!first.getClassName().equals(second.getClassName())) {
        return false;
    }
    if (!first.getText().equals(second.getText())) {
        // The result of getText() is never null.
        return false;
    }
    if (first.getContentDescription() == null) {
        if (second.getContentDescription() != null) {
            return false;
        }
    } else if (!first.getContentDescription().equals(second.getContentDescription())) {
        return false;
    }
    if (first.getBeforeText() == null) {
        if (second.getBeforeText() != null) {
            return false;
        }
    } else if (!first.getBeforeText().equals(second.getBeforeText())) {
        return false;
    }
    if (first.getParcelableData() != null) {
        // Parcelable data may not implement equals() correctly.
        return false;
    }
    if (first.getAddedCount() != second.getAddedCount()) {
        return false;
    }
    if (first.isChecked() != second.isChecked()) {
        return false;
    }
    if (first.isEnabled() != second.isEnabled()) {
        return false;
    }
    if (first.getFromIndex() != second.getFromIndex()) {
        return false;
    }
    if (first.isFullScreen() != second.isFullScreen()) {
        return false;
    }
    if (first.getCurrentItemIndex() != second.getCurrentItemIndex()) {
        return false;
    }
    if (first.getItemCount() != second.getItemCount()) {
        return false;
    }
    if (first.isPassword() != second.isPassword()) {
        return false;
    }
    if (first.getRemovedCount() != second.getRemovedCount()) {
        return false;
    }
    if (first.getEventTime() != second.getEventTime()) {
        return false;
    }
    return true;
}

---

From source file:com.android.screenspeak.formatter.EventSpeechRule.java

/**
 * Returns the value of a given <code>property</code> of an <code>event</code>.
 *
 * @param property The property/*from   ww  w.  j  a  v  a 2 s . c  o  m*/
 * @param event The event.
 * @return the value.
 */
private Object getPropertyValue(Context context, String property, AccessibilityEvent event) {
    final AccessibilityRecordCompat record = AccessibilityEventCompat.asRecord(event);

    if (property == null) {
        throw new IllegalArgumentException("Unknown property : " + property);
    }

    // TODO(AV): Don't do so many string comparisons here.
    switch (property) {
    case PROPERTY_EVENT_TYPE:
        return event.getEventType();
    case PROPERTY_PACKAGE_NAME:
        return event.getPackageName();
    case PROPERTY_CLASS_NAME:
        return event.getClassName();
    case PROPERTY_CLASS_NAME_STRICT:
        return event.getClassName();
    case PROPERTY_TEXT:
        return AccessibilityEventUtils.getEventAggregateText(event);
    case PROPERTY_BEFORE_TEXT:
        return event.getBeforeText();
    case PROPERTY_CONTENT_DESCRIPTION:
        return event.getContentDescription();
    case PROPERTY_CONTENT_DESCRIPTION_OR_TEXT:
        return AccessibilityEventUtils.getEventTextOrDescription(event);
    case PROPERTY_NODE_DESCRIPTION_OR_FALLBACK:
        return getNodeDescriptionOrFallback(event);
    case PROPERTY_EVENT_TIME:
        return event.getEventTime();
    case PROPERTY_ITEM_COUNT:
        return event.getItemCount();
    case PROPERTY_CURRENT_ITEM_INDEX:
        return event.getCurrentItemIndex();
    case PROPERTY_FROM_INDEX:
        return event.getFromIndex();
    case PROPERTY_TO_INDEX:
        return record.getToIndex();
    case PROPERTY_SCROLLABLE:
        return record.isScrollable();
    case PROPERTY_SCROLL_X:
        return record.getScrollX();
    case PROPERTY_SCROLL_Y:
        return record.getScrollY();
    case PROPERTY_RECORD_COUNT:
        return AccessibilityEventCompat.getRecordCount(event);
    case PROPERTY_CHECKED:
        return event.isChecked();
    case PROPERTY_ENABLED:
        return event.isEnabled();
    case PROPERTY_FULL_SCREEN:
        return event.isFullScreen();
    case PROPERTY_PASSWORD:
        return event.isPassword();
    case PROPERTY_ADDED_COUNT:
        return event.getAddedCount();
    case PROPERTY_REMOVED_COUNT:
        return event.getRemovedCount();
    case PROPERTY_VERSION_CODE:
        return PackageManagerUtils.getVersionCode(context, event.getPackageName());
    case PROPERTY_VERSION_NAME:
        return PackageManagerUtils.getVersionName(context, event.getPackageName());
    case PROPERTY_PLATFORM_RELEASE:
        return Build.VERSION.RELEASE;
    case PROPERTY_PLATFORM_SDK:
        return Build.VERSION.SDK_INT;
    default:
        throw new IllegalArgumentException("Unknown property : " + property);
    }
}

---

From source file:com.android.talkback.formatter.EventSpeechRule.java

/**
 * Returns the value of a given <code>property</code> of an <code>event</code>.
 *
 * @param property The property/*from  www  .j av a 2 s.  com*/
 * @param event The event.
 * @return the value.
 */
private Object getPropertyValue(Context context, String property, AccessibilityEvent event) {
    final AccessibilityRecordCompat record = AccessibilityEventCompat.asRecord(event);

    if (property == null) {
        throw new IllegalArgumentException("Unknown property : " + property);
    }

    // TODO: Don't do so many string comparisons here.
    switch (property) {
    case PROPERTY_EVENT_TYPE:
        return event.getEventType();
    case PROPERTY_PACKAGE_NAME:
        return event.getPackageName();
    case PROPERTY_CLASS_NAME:
        return event.getClassName();
    case PROPERTY_CLASS_NAME_STRICT:
        return event.getClassName();
    case PROPERTY_TEXT:
        return AccessibilityEventUtils.getEventAggregateText(event);
    case PROPERTY_BEFORE_TEXT:
        return event.getBeforeText();
    case PROPERTY_CONTENT_DESCRIPTION:
        return event.getContentDescription();
    case PROPERTY_CONTENT_DESCRIPTION_OR_TEXT:
        return AccessibilityEventUtils.getEventTextOrDescription(event);
    case PROPERTY_NODE_DESCRIPTION_OR_FALLBACK:
        return getNodeDescriptionOrFallback(event);
    case PROPERTY_EVENT_TIME:
        return event.getEventTime();
    case PROPERTY_ITEM_COUNT:
        return event.getItemCount();
    case PROPERTY_CURRENT_ITEM_INDEX:
        return event.getCurrentItemIndex();
    case PROPERTY_FROM_INDEX:
        return event.getFromIndex();
    case PROPERTY_TO_INDEX:
        return record.getToIndex();
    case PROPERTY_SCROLLABLE:
        return record.isScrollable();
    case PROPERTY_SCROLL_X:
        return record.getScrollX();
    case PROPERTY_SCROLL_Y:
        return record.getScrollY();
    case PROPERTY_RECORD_COUNT:
        return AccessibilityEventCompat.getRecordCount(event);
    case PROPERTY_CHECKED:
        return event.isChecked();
    case PROPERTY_ENABLED:
        return event.isEnabled();
    case PROPERTY_FULL_SCREEN:
        return event.isFullScreen();
    case PROPERTY_PASSWORD:
        return event.isPassword();
    case PROPERTY_ADDED_COUNT:
        return event.getAddedCount();
    case PROPERTY_REMOVED_COUNT:
        return event.getRemovedCount();
    case PROPERTY_VERSION_CODE:
        return PackageManagerUtils.getVersionCode(context, event.getPackageName());
    case PROPERTY_VERSION_NAME:
        return PackageManagerUtils.getVersionName(context, event.getPackageName());
    case PROPERTY_PLATFORM_RELEASE:
        return Build.VERSION.RELEASE;
    case PROPERTY_PLATFORM_SDK:
        return Build.VERSION.SDK_INT;
    default:
        throw new IllegalArgumentException("Unknown property : " + property);
    }
}

---

From source file:com.google.android.marvin.mytalkback.formatter.EventSpeechRule.java

/**
 * Returns the value of a given <code>property</code> of an <code>event</code>.
 *
 * @param property The property/*from w  w  w. j  av  a  2  s .  co  m*/
 * @param event The event.
 * @return the value.
 */
private Object getPropertyValue(Context context, String property, AccessibilityEvent event) {
    final AccessibilityRecordCompat record = new AccessibilityRecordCompat(event);

    // TODO(alanv): Don't do so many string comparisons here.
    if (PROPERTY_EVENT_TYPE.equals(property)) {
        return event.getEventType();
    } else if (PROPERTY_PACKAGE_NAME.equals(property)) {
        return event.getPackageName();
    } else if (PROPERTY_CLASS_NAME.equals(property)) {
        return event.getClassName();
    } else if (PROPERTY_CLASS_NAME_STRICT.equals(property)) {
        return event.getClassName();
    } else if (PROPERTY_TEXT.equals(property)) {
        return AccessibilityEventUtils.getEventAggregateText(event);
    } else if (PROPERTY_BEFORE_TEXT.equals(property)) {
        return event.getBeforeText();
    } else if (PROPERTY_CONTENT_DESCRIPTION.equals(property)) {
        return event.getContentDescription();
    } else if (PROPERTY_CONTENT_DESCRIPTION_OR_TEXT.equals(property)) {
        return AccessibilityEventUtils.getEventTextOrDescription(event);
    } else if (PROPERTY_NODE_DESCRIPTION_OR_FALLBACK.equals(property)) {
        return getNodeDescriptionOrFallback(event);
    } else if (PROPERTY_EVENT_TIME.equals(property)) {
        return event.getEventTime();
    } else if (PROPERTY_ITEM_COUNT.equals(property)) {
        return event.getItemCount();
    } else if (PROPERTY_CURRENT_ITEM_INDEX.equals(property)) {
        return event.getCurrentItemIndex();
    } else if (PROPERTY_FROM_INDEX.equals(property)) {
        return event.getFromIndex();
    } else if (PROPERTY_TO_INDEX.equals(property)) {
        return record.getToIndex();
    } else if (PROPERTY_SCROLLABLE.equals(property)) {
        return record.isScrollable();
    } else if (PROPERTY_SCROLL_X.equals(property)) {
        return record.getScrollX();
    } else if (PROPERTY_SCROLL_Y.equals(property)) {
        return record.getScrollY();
    } else if (PROPERTY_RECORD_COUNT.equals(property)) {
        return AccessibilityEventCompat.getRecordCount(event);
    } else if (PROPERTY_CHECKED.equals(property)) {
        return event.isChecked();
    } else if (PROPERTY_ENABLED.equals(property)) {
        return event.isEnabled();
    } else if (PROPERTY_FULL_SCREEN.equals(property)) {
        return event.isFullScreen();
    } else if (PROPERTY_PASSWORD.equals(property)) {
        return event.isPassword();
    } else if (PROPERTY_ADDED_COUNT.equals(property)) {
        return event.getAddedCount();
    } else if (PROPERTY_REMOVED_COUNT.equals(property)) {
        return event.getRemovedCount();
    } else if (PROPERTY_VERSION_CODE.equals(property)) {
        return PackageManagerUtils.getVersionCode(context, event.getPackageName());
    } else if (PROPERTY_VERSION_NAME.equals(property)) {
        return PackageManagerUtils.getVersionName(context, event.getPackageName());
    } else if (PROPERTY_PLATFORM_RELEASE.equals(property)) {
        return Build.VERSION.RELEASE;
    } else if (PROPERTY_PLATFORM_SDK.equals(property)) {
        return Build.VERSION.SDK_INT;
    } else {
        throw new IllegalArgumentException("Unknown property : " + property);
    }
}

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