/**
* Sends the specified text to the {@link AccessibilityManager} to be spoken.
*
* @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);
}
