Example usage for android.view.accessibility AccessibilityEvent TYPE_VIEW_FOCUSED

Introduction

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

Prototype

int TYPE_VIEW_FOCUSED

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Document

Represents the event of setting input focus of a android.view.View .

Usage

From source file:com.phonemetra.turbo.keyboard.accessibility.AccessibilityUtils.java

/**
 * Sends the specified text to the {@link AccessibilityManager} to be
 * spoken.//from  ww w .  j  a va2 s. co  m
 *
 * @param view The source view.
 * @param text The text to speak.
 */
public void announceForAccessibility(final View view, final CharSequence text) {
    if (!mAccessibilityManager.isEnabled()) {
        return;
    }

    // The following is a hack to avoid using the heavy-weight TextToSpeech
    // class. Instead, we're just forcing a fake AccessibilityEvent into
    // the screen reader to make it speak.
    final AccessibilityEvent event = AccessibilityEvent.obtain();

    event.setPackageName(PACKAGE);
    event.setClassName(CLASS);
    event.setEventTime(SystemClock.uptimeMillis());
    event.setEnabled(true);
    event.getText().add(text);

    // Platforms starting at SDK version 16 (Build.VERSION_CODES.JELLY_BEAN) should use
    // announce events.
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
        event.setEventType(AccessibilityEventCompat.TYPE_ANNOUNCEMENT);
    } else {
        event.setEventType(AccessibilityEvent.TYPE_VIEW_FOCUSED);
    }

    final ViewParent viewParent = view.getParent();
    if ((viewParent == null) || !(viewParent instanceof ViewGroup)) {
        return;
    }

    viewParent.requestSendAccessibilityEvent(view, event);
}

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From source file:com.android.managedprovisioning.DeviceOwnerProvisioningActivity.java

private void progressUpdate(int progressMessage) {
    mProgressTextView.setText(progressMessage);
    mProgressTextView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_FOCUSED);
}

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From source file:com.android.inputmethod.accessibility.AccessibilityUtils.java

/**
 * Sends the specified text to the {@link AccessibilityManager} to be
 * spoken.// w  w w.jav a  2 s . c om
 *
 * @param view The source view.
 * @param text The text to speak.
 */
public void announceForAccessibility(final View view, final CharSequence text) {
    if (!mAccessibilityManager.isEnabled()) {
        Log.e(TAG, "Attempted to speak when accessibility was disabled!");
        return;
    }

    // The following is a hack to avoid using the heavy-weight TextToSpeech
    // class. Instead, we're just forcing a fake AccessibilityEvent into
    // the screen reader to make it speak.
    final AccessibilityEvent event = AccessibilityEvent.obtain();

    event.setPackageName(PACKAGE);
    event.setClassName(CLASS);
    event.setEventTime(SystemClock.uptimeMillis());
    event.setEnabled(true);
    event.getText().add(text);

    // Platforms starting at SDK version 16 (Build.VERSION_CODES.JELLY_BEAN) should use
    // announce events.
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
        event.setEventType(AccessibilityEventCompat.TYPE_ANNOUNCEMENT);
    } else {
        event.setEventType(AccessibilityEvent.TYPE_VIEW_FOCUSED);
    }

    final ViewParent viewParent = view.getParent();
    if ((viewParent == null) || !(viewParent instanceof ViewGroup)) {
        Log.e(TAG, "Failed to obtain ViewParent in announceForAccessibility");
        return;
    }

    viewParent.requestSendAccessibilityEvent(view, event);
}

---

From source file:com.android.talkback.eventprocessor.AccessibilityEventProcessor.java

public void onAccessibilityEvent(AccessibilityEvent event) {
    if (mTestingListener != null) {
        mTestingListener.onAccessibilityEvent(event);
    }//from  w  w  w  .ja va  2s .  co m

    if ((mDumpEventMask & event.getEventType()) != 0) {
        Log.v(DUMP_EVNET_LOG_TAG, event.toString());
    }

    if (shouldDropRefocusEvent(event)) {
        return;
    }

    if (shouldDropEvent(event)) {
        return;
    }

    maintainExplorationState(event);

    if (event.getEventType() == AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED
            || event.getEventType() == AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED
            || event.getEventType() == AccessibilityEvent.TYPE_WINDOWS_CHANGED) {
        mService.setRootDirty(true);
    }

    // We need to save the last focused event so that we can filter out related selected events.
    if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_FOCUSED) {
        if (mLastFocusedEvent != null) {
            mLastFocusedEvent.recycle();
        }

        mLastFocusedEvent = AccessibilityEvent.obtain(event);
    }

    if (AccessibilityEventUtils.eventMatchesAnyType(event, MASK_DELAYED_EVENT_TYPES)) {
        mHandler.postProcessEvent(event);
    } else {
        processEvent(event);
    }

    if (mTestingListener != null) {
        mTestingListener.afterAccessibilityEvent(event);
    }
}

---

From source file:com.aboveware.common.crouton.Manager.java

/**
 * Generates and dispatches an SDK-specific spoken announcement.
 * <p>//  w  w w.  j  ava 2 s. c o m
 * For backwards compatibility, we're constructing an event from scratch
 * using the appropriate event type. If your application only targets SDK
 * 16+, you can just call View.announceForAccessibility(CharSequence).
 * </p>
 *
 * note: AccessibilityManager is only available from API lvl 4.
 *
 * Adapted from https://http://eyes-free.googlecode.com/files/accessibility_codelab_demos_v2_src.zip
 * via https://github.com/coreform/android-formidable-validation
 *
 * @param context Used to get {@link AccessibilityManager}
 * @param text The text to announce.
 */
public static void announceForAccessibilityCompat(Context context, CharSequence text) {
    if (Build.VERSION.SDK_INT >= 4) {
        AccessibilityManager accessibilityManager = (AccessibilityManager) context
                .getSystemService(Context.ACCESSIBILITY_SERVICE);
        if (!accessibilityManager.isEnabled()) {
            return;
        }

        // Prior to SDK 16, announcements could only be made through FOCUSED
        // events. Jelly Bean (SDK 16) added support for speaking text verbatim
        // using the ANNOUNCEMENT event type.
        final int eventType;
        if (Build.VERSION.SDK_INT < 16) {
            eventType = AccessibilityEvent.TYPE_VIEW_FOCUSED;
        } else {
            eventType = AccessibilityEventCompat.TYPE_ANNOUNCEMENT;
        }

        // 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.setClassName(Manager.class.getName());
        event.setPackageName(context.getPackageName());

        // Sends the event directly through the accessibility manager. If your
        // application only targets SDK 14+, you should just call
        // getParent().requestSendAccessibilityEvent(this, event);
        accessibilityManager.sendAccessibilityEvent(event);
    }
}

---

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

/**
 * Helper method for {@link #shouldDropEvent} that handles events that
 * automatically occur immediately after a window state change.
 *
 * @param event The automatically generated event to consider retaining.
 * @return Whether to retain the event./*  w  w  w  . ja  v  a  2 s.c o  m*/
 */
private boolean shouldKeepAutomaticEvent(AccessibilityEvent event) {
    final AccessibilityRecordCompat record = AccessibilityEventCompat.asRecord(event);

    // Don't drop focus events from EditTexts.
    if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_FOCUSED) {
        AccessibilityNodeInfoCompat node = null;

        try {
            node = record.getSource();
            if (AccessibilityNodeInfoUtils.nodeMatchesClassByType(node, EditText.class)) {
                return true;
            }
        } finally {
            AccessibilityNodeInfoUtils.recycleNodes(node);
        }
    }

    return false;
}

---

From source file:com.prashant.custom.widget.crouton.Manager.java

/**
 * Generates and dispatches an SDK-specific spoken announcement.
 * <p>//from w w  w  .  j  av  a  2s  .c o m
 * For backwards compatibility, we're constructing an event from scratch
 * using the appropriate event type. If your application only targets SDK
 * 16+, you can just call View.announceForAccessibility(CharSequence).
 * </p>
 * <p/>
 * note: AccessibilityManager is only available from API lvl 4.
 * <p/>
 * Adapted from https://http://eyes-free.googlecode.com/files/accessibility_codelab_demos_v2_src.zip
 * via https://github.com/coreform/android-formidable-validation
 *
 * @param context
 *   Used to get {@link AccessibilityManager}
 * @param text
 *   The text to announce.
 */
public static void announceForAccessibilityCompat(Context context, CharSequence text) {
    if (Build.VERSION.SDK_INT >= 4) {
        AccessibilityManager accessibilityManager = (AccessibilityManager) context
                .getSystemService(Context.ACCESSIBILITY_SERVICE);
        if (!accessibilityManager.isEnabled()) {
            return;
        }

        final int eventType;
        eventType = 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.setClassName(Manager.class.getName());
        event.setPackageName(context.getPackageName());

        // Sends the event directly through the accessibility manager. If your
        // application only targets SDK 14+, you should just call
        // getParent().requestSendAccessibilityEvent(this, event);
        accessibilityManager.sendAccessibilityEvent(event);
    }
}

---

From source file:com.partynetwork.iparty.app.widget.crouton.Manager.java

/**
 * Generates and dispatches an SDK-specific spoken announcement.
 * <p>/*from   w w w .  ja va 2  s.co  m*/
 * For backwards compatibility, we're constructing an event from scratch
 * using the appropriate event type. If your application only targets SDK
 * 16+, you can just call View.announceForAccessibility(CharSequence).
 * </p>
 * <p/>
 * note: AccessibilityManager is only available from API lvl 4.
 * <p/>
 * Adapted from https://http://eyes-free.googlecode.com/files/
 * accessibility_codelab_demos_v2_src.zip via
 * https://github.com/coreform/android-formidable-validation
 * 
 * @param context
 *            Used to get {@link AccessibilityManager}
 * @param text
 *            The text to announce.
 */
public static void announceForAccessibilityCompat(Context context, CharSequence text) {
    if (Build.VERSION.SDK_INT >= 4) {
        AccessibilityManager accessibilityManager = null;
        if (null != context) {
            accessibilityManager = (AccessibilityManager) context
                    .getSystemService(Context.ACCESSIBILITY_SERVICE);
        }
        if (null == accessibilityManager || !accessibilityManager.isEnabled()) {
            return;
        }

        // Prior to SDK 16, announcements could only be made through FOCUSED
        // events. Jelly Bean (SDK 16) added support for speaking text
        // verbatim
        // using the ANNOUNCEMENT event type.
        final int eventType;
        if (Build.VERSION.SDK_INT < 16) {
            eventType = AccessibilityEvent.TYPE_VIEW_FOCUSED;
        } else {
            eventType = AccessibilityEventCompat.TYPE_ANNOUNCEMENT;
        }

        // 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.setClassName(Manager.class.getName());
        event.setPackageName(context.getPackageName());

        // Sends the event directly through the accessibility manager. If
        // your
        // application only targets SDK 14+, you should just call
        // getParent().requestSendAccessibilityEvent(this, event);
        accessibilityManager.sendAccessibilityEvent(event);
    }
}

---

From source file:com.elephant.widget.crouton.Manager.java

/**
 * Generates and dispatches an SDK-specific spoken announcement.
 * <p>/*www .  j  a  v  a 2s  .c  o m*/
 * For backwards compatibility, we're constructing an event from scratch
 * using the appropriate event type. If your application only targets SDK
 * 16+, you can just call View.announceForAccessibility(CharSequence).
 * </p>
 * <p/>
 * note: AccessibilityManager is only available from API lvl 4.
 * <p/>
 * Adapted from https://http://eyes-free.googlecode.com/files/
 * accessibility_codelab_demos_v2_src.zip via
 * https://github.com/coreform/android-formidable-validation
 * 
 * @param context
 *            Used to get {@link AccessibilityManager}
 * @param text
 *            The text to announce.
 */
public static void announceForAccessibilityCompat(Context context, CharSequence text) {
    if (Build.VERSION.SDK_INT >= 4) {
        AccessibilityManager accessibilityManager = (AccessibilityManager) context
                .getSystemService(Context.ACCESSIBILITY_SERVICE);
        if (!accessibilityManager.isEnabled()) {
            return;
        }

        // Prior to SDK 16, announcements could only be made through FOCUSED
        // events. Jelly Bean (SDK 16) added support for speaking text
        // verbatim
        // using the ANNOUNCEMENT event type.
        final int eventType;
        if (Build.VERSION.SDK_INT < 16) {
            eventType = AccessibilityEvent.TYPE_VIEW_FOCUSED;
        } else {
            eventType = AccessibilityEventCompat.TYPE_ANNOUNCEMENT;
        }

        // 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.setClassName(Manager.class.getName());
        event.setPackageName(context.getPackageName());

        // Sends the event directly through the accessibility manager. If
        // your
        // application only targets SDK 14+, you should just call
        // getParent().requestSendAccessibilityEvent(this, event);
        accessibilityManager.sendAccessibilityEvent(event);
    }
}

---

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

private void tryFocusCachedRecord() {
    if (mCachedPotentiallyFocusableRecordQueue.isEmpty()) {
        return;/*  w  w  w. j a  v a 2 s .  c o  m*/
    }

    Iterator<Pair<AccessibilityRecordCompat, Integer>> iterator = mCachedPotentiallyFocusableRecordQueue
            .descendingIterator();

    while (iterator.hasNext()) {
        Pair<AccessibilityRecordCompat, Integer> focusableRecord = iterator.next();
        AccessibilityRecordCompat record = focusableRecord.first;
        int eventType = focusableRecord.second;
        if (setFocusOnView(record, eventType == AccessibilityEvent.TYPE_VIEW_FOCUSED)) {
            emptyCachedPotentialFocusQueue();
            return;
        }
    }
}

---

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