protected FullScreenReadController getFullScreenReadController() {
final TalkBackService service = TalkBackService.getInstance();
if (service == null) {
LogUtils.log(Log.ERROR, "Failed to get TalkBackService instance.");
return null;
}
return service.getFullScreenReadController();
}
/** Interrupts the speech controller. */
private void interrupt() {
final TalkBackService service = TalkBackService.getInstance();
if (service == null) {
LogUtils.log(Log.ERROR, "Failed to get TalkBackService instance.");
return;
}
final SpeechController speechController = service.getSpeechController();
speechController.interrupt();
}
/**
* Sends the instruction text to the speech controller for queuing.
*
* @param resId The resource value of the instruction string.
* @param formatArgs Optional formatting arguments.
* @see String#format(String, Object...)
*/
private void speakInternal(int resId, Object... formatArgs) {
final TalkBackService service = TalkBackService.getInstance();
if (service == null) {
LogUtils.log(Log.ERROR, "Failed to get TalkBackService instance.");
return;
}
final SpeechController speechController = service.getSpeechController();
final String text = getString(resId, formatArgs);
speechController.speak(text, null, null, 0, 0, null, null, mUtteranceCompleteRunnable);
}
private void show(int which) {
if ((which < 0) || (which >= mViewAnimator.getChildCount())) {
LogUtils.log(this, Log.WARN, "Tried to show a module with an index out of bounds.");
return;
}
if (which != mViewAnimator.getDisplayedChild()) {
// Interrupt speech and stop the previous module.
mAccessibilityManager.interrupt();
interrupt();
stopRepeating();
mViewAnimator.setOnKeyListener(null);
getCurrentModule().onPause();
getCurrentModule().onStop();
}
mViewAnimator.setDisplayedChild(which);
}