Example usage for android.content Context ACCESSIBILITY

Introduction

In this page you can find the example usage for android.content Context ACCESSIBILITY_SERVICE.

Prototype

String ACCESSIBILITY_SERVICE

To view the source code for android.content Context ACCESSIBILITY_SERVICE.

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Document

Use with #getSystemService(String) to retrieve a android.view.accessibility.AccessibilityManager for giving the user feedback for UI events through the registered event listeners.

Usage

From source file:Main.java

public static boolean isEnabled(Context context) {
    AccessibilityManager am = (AccessibilityManager) context.getSystemService(Context.ACCESSIBILITY_SERVICE);
    return am.isEnabled();
}

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

public static boolean isTouchExplorationEnabled(final Context context) {
    final AccessibilityManager accessibilityManager = (AccessibilityManager) context
            .getSystemService(Context.ACCESSIBILITY_SERVICE);
    return accessibilityManager.isTouchExplorationEnabled();
}

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

public static void makeAnnouncement(View view, CharSequence announcement) {
    if (view == null)
        return;//  w w w  .ja va2 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.android.fastergallery.util.AccessibilityUtils.java

public static void makeAnnouncement(View view, CharSequence announcement) {
    if (view == null)
        return;/* ww  w .  j a  v  a  2 s  .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.appeaser.sublimepickerlibrary.utilities.AccessibilityUtils.java

public static void makeAnnouncement(View view, CharSequence announcement) {
    if (view == null)
        return;/*from www.j av  a2  s  . c  om*/
    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.
 *///from www .j a  va 2  s  . 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.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 a  v a  2  s .  c om

    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.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./*from   ww  w .ja  va 2 s  .c  om*/
 */
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.yijiang.kzx.widget.betterpickers.TouchExplorationHelper.java

/**
 * Constructs a new touch exploration helper.
 *
 * @param context The parent context.//from   w w  w .j  av  a 2s.c om
 */
public TouchExplorationHelper(Context context, View parentView) {
    mManager = (AccessibilityManager) context.getSystemService(Context.ACCESSIBILITY_SERVICE);
    mParentView = parentView;
}

From source file:com.coreform.open.android.formidablevalidation.ValidationManager.java

public ValidationManager(Context context) {
    mContext = context;//from   w w  w  .java 2  s.c o  m
    valueValidatorMap = new LinkedHashMap<String, List<ValueValidatorInterface>>();
    dependencyValidatorMap = new LinkedHashMap<String, List<DependencyValidatorInterface>>();

    mHandler = new Handler();

    // Keep a handle to the accessibility manager.
    mAccessibilityManager = (AccessibilityManager) mContext.getSystemService(Context.ACCESSIBILITY_SERVICE);
}

Example usage for android.content Context ACCESSIBILITY_SERVICE

Introduction

Prototype

Document

Usage