Example usage for android.view.accessibility AccessibilityEvent obtain

Introduction

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

Prototype

public static AccessibilityEvent obtain(AccessibilityEvent event) 

Source Link

Document

Returns a cached instance if such is available or a new one is created.

Usage

From source file:Main.java

public static void sendAccessibilityEvent(Context context) {
    AccessibilityManager am = (AccessibilityManager) context.getSystemService(Context.ACCESSIBILITY_SERVICE);
    if (am.isEnabled()) {
        am.sendAccessibilityEvent(AccessibilityEvent.obtain(AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED));
    }/* ww w  .  ja va  2s . co m*/
}

---

From source file:Main.java

/**
 * Announce text through the AccessibilityManager for a view.
 *
 * @param text/*from  w w w . j a va2  s  .  c o  m*/
 * @param view
 * @param manager
 */
public static void announceText(String text, View view, AccessibilityManager manager) {
    // Only announce text if the accessibility service is enabled
    if (!manager.isEnabled()) {
        return;
    }
    AccessibilityEvent event = AccessibilityEvent.obtain(AccessibilityEventCompat.TYPE_ANNOUNCEMENT);
    event.getText().add(text);
    event.setEnabled(true);
    // Tie the event to the view
    event.setClassName(view.getClass().getName());
    event.setPackageName(view.getContext().getPackageName());
    AccessibilityEventCompat.asRecord(event).setSource(view);

    // Send the announcement
    manager.sendAccessibilityEvent(event);

}

---

From source file:Main.java

/**
 * Try to send an {@link AccessibilityEvent}
 * for a {@link View}.//from w w  w .  jav a  2 s .  c om
 *
 * @param view The View that will dispatch the AccessibilityEvent
 * @return true if the AccessibilityEvent was dispatched
 */
@SuppressWarnings("UnusedReturnValue")
public static boolean sendAccessibilityEvent(View view) {
    final AccessibilityManager accessibilityManager = (AccessibilityManager) view.getContext()
            .getSystemService(Context.ACCESSIBILITY_SERVICE);

    if (!accessibilityManager.isEnabled())
        return false;

    final AccessibilityEvent accessibilityEvent = AccessibilityEvent
            .obtain(AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED);
    accessibilityEvent.setClassName(view.getClass().getName());
    accessibilityEvent.setPackageName(view.getContext().getPackageName());

    view.dispatchPopulateAccessibilityEvent(accessibilityEvent);
    accessibilityManager.sendAccessibilityEvent(accessibilityEvent);

    return true;
}

---

From source file:com.android.gallery3d.util.AccessibilityUtils.java

public static void makeAnnouncement(View view, CharSequence announcement) {
    if (view == null)
        return;// ww w.j a  v  a 2s  .c om
    if (ApiHelper.HAS_ANNOUNCE_FOR_ACCESSIBILITY) {
        view.announceForAccessibility(announcement);
    } else {
        // For API 15 and earlier, we need to construct an accessibility event
        Context ctx = view.getContext();
        AccessibilityManager am = (AccessibilityManager) ctx.getSystemService(Context.ACCESSIBILITY_SERVICE);
        if (!am.isEnabled())
            return;
        AccessibilityEvent event = AccessibilityEvent
                .obtain(AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED);
        AccessibilityRecordCompat arc = new AccessibilityRecordCompat(event);
        arc.setSource(view);
        event.setClassName(view.getClass().getName());
        event.setPackageName(view.getContext().getPackageName());
        event.setEnabled(view.isEnabled());
        event.getText().add(announcement);
        am.sendAccessibilityEvent(event);
    }
}

---

From source file:com.android.fastergallery.util.AccessibilityUtils.java

public static void makeAnnouncement(View view, CharSequence announcement) {
    if (view == null)
        return;//from w  w  w  . ja  va  2  s.c o  m
    if (ApiHelper.HAS_ANNOUNCE_FOR_ACCESSIBILITY) {
        view.announceForAccessibility(announcement);
    } else {
        // For API 15 and earlier, we need to construct an accessibility
        // event
        Context ctx = view.getContext();
        AccessibilityManager am = (AccessibilityManager) ctx.getSystemService(Context.ACCESSIBILITY_SERVICE);
        if (!am.isEnabled())
            return;
        AccessibilityEvent event = AccessibilityEvent
                .obtain(AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED);
        AccessibilityRecordCompat arc = new AccessibilityRecordCompat(event);
        arc.setSource(view);
        event.setClassName(view.getClass().getName());
        event.setPackageName(view.getContext().getPackageName());
        event.setEnabled(view.isEnabled());
        event.getText().add(announcement);
        am.sendAccessibilityEvent(event);
    }
}

---

From source file:com.appeaser.sublimepickerlibrary.utilities.AccessibilityUtils.java

public static void makeAnnouncement(View view, CharSequence announcement) {
    if (view == null)
        return;//from  w w w . j av  a  2 s .  co m
    if (SUtils.isApi_16_OrHigher()) {
        view.announceForAccessibility(announcement);
    } else {
        // For API 15 and earlier, we need to construct an accessibility event
        Context ctx = view.getContext();
        AccessibilityManager am = (AccessibilityManager) ctx.getSystemService(Context.ACCESSIBILITY_SERVICE);
        if (!am.isEnabled())
            return;

        AccessibilityEvent event = AccessibilityEvent
                .obtain(AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED);
        AccessibilityRecordCompat arc = AccessibilityEventCompat.asRecord(event);
        arc.setSource(view);
        event.setClassName(view.getClass().getName());
        event.setPackageName(view.getContext().getPackageName());
        event.setEnabled(view.isEnabled());
        event.getText().add(announcement);
        am.sendAccessibilityEvent(event);
    }
}

---

From source file:com.android.talkback.TalkBackKeyboardShortcutPreferencesActivity.java

/**
 * Utility method for announcing text via accessibility event.
 *//*  w  w  w  .j a v a  2s .c  om*/
public static void announceText(String text, Context context) {
    AccessibilityManager accessibilityManager = (AccessibilityManager) context
            .getSystemService(Context.ACCESSIBILITY_SERVICE);
    if (accessibilityManager.isEnabled()) {
        AccessibilityEvent event = AccessibilityEvent.obtain(AccessibilityEvent.TYPE_ANNOUNCEMENT);
        event.setContentDescription(text);
        accessibilityManager.sendAccessibilityEvent(event);
    }
}

---

From source file:com.android.mail.utils.ViewUtils.java

/**
 * Convenience method for sending a {@link android.view.accessibility.AccessibilityEvent#TYPE_ANNOUNCEMENT}
 * {@link android.view.accessibility.AccessibilityEvent} to make an announcement which is related to some
 * sort of a context change for which none of the events representing UI transitions
 * is a good fit. For example, announcing a new page in a book. If accessibility
 * is not enabled this method does nothing.
 *
 * @param view view to perform the accessibility announcement
 * @param text The announcement text.//  w w  w  .j a v  a 2 s .  co  m
 */
public static void announceForAccessibility(View view, CharSequence text) {
    final AccessibilityManager accessibilityManager = (AccessibilityManager) view.getContext()
            .getSystemService(Context.ACCESSIBILITY_SERVICE);
    final ViewParent parent = view.getParent();
    if (accessibilityManager.isEnabled() && parent != null) {
        AccessibilityEvent event = AccessibilityEvent.obtain(AccessibilityEvent.TYPE_ANNOUNCEMENT);
        view.onInitializeAccessibilityEvent(event);
        event.getText().add(text);
        event.setContentDescription(null);
        parent.requestSendAccessibilityEvent(view, event);
    }
}

---

From source file:com.android.messaging.util.AccessibilityUtil.java

public static void announceForAccessibilityCompat(final View view,
        @Nullable AccessibilityManager accessibilityManager, final CharSequence text) {
    final Context context = view.getContext().getApplicationContext();
    if (accessibilityManager == null) {
        accessibilityManager = (AccessibilityManager) context.getSystemService(Context.ACCESSIBILITY_SERVICE);
    }/*from   w w w.j  av a  2 s . com*/

    if (!accessibilityManager.isEnabled()) {
        return;
    }

    // Jelly Bean added support for speaking text verbatim
    final int eventType = OsUtil.isAtLeastJB() ? AccessibilityEvent.TYPE_ANNOUNCEMENT
            : AccessibilityEvent.TYPE_VIEW_FOCUSED;

    // Construct an accessibility event with the minimum recommended
    // attributes. An event without a class name or package may be dropped.
    final AccessibilityEvent event = AccessibilityEvent.obtain(eventType);
    event.getText().add(text);
    event.setEnabled(view.isEnabled());
    event.setClassName(view.getClass().getName());
    event.setPackageName(context.getPackageName());

    // JellyBean MR1 requires a source view to set the window ID.
    final AccessibilityRecordCompat record = AccessibilityEventCompat.asRecord(event);
    record.setSource(view);

    // Sends the event directly through the accessibility manager. If we only supported SDK 14+
    // we could have done:
    // getParent().requestSendAccessibilityEvent(this, event);
    accessibilityManager.sendAccessibilityEvent(event);
}

---

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

/**
 * Adds an {@link AccessibilityEvent} to the queue for processing. If this
 * addition causes the queue to exceed the maximum allowable events for an
 * event's type, earlier events of this type will be pruned from the queue.
 *
 * @param event The event to add to the queue
 *///  w  w  w . j av  a  2  s .c om
public void enqueue(AccessibilityEvent event) {
    final AccessibilityEvent clone = AccessibilityEvent.obtain(event);
    final int eventType = clone.getEventType();

    if (AccessibilityEventUtils.eventMatchesAnyType(clone, MASK_LIMITED_EVENT_TYPES)) {
        final int eventCountOfType = mQualifyingEvents.get(eventType, 0);
        mQualifyingEvents.put(eventType, (eventCountOfType + 1));
    }

    mEventQueue.add(clone);
    enforceEventLimits();
}

---

• «
• 1
• 2
• 3
• 4
• 5
• »