/**
* Formats an instruction string, updates it on the screen, and passes it to the parent activity
* to be spoken.
*
* @param resId The resource value of the instruction string.
* @param repeat Whether the instruction should be repeated indefinitely.
* @param formatArgs Optional formatting arguments.
* @see String#format(String, Object...)
*/
protected void addInstruction(int resId, boolean repeat, Object... formatArgs) {
final String text = mParentTutorial.getString(resId, formatArgs);
mInstructions.setVisibility(View.VISIBLE);
mInstructions.setText(text);
mParentTutorial.speakInstruction(resId, repeat, formatArgs);
}
/**
* Determines the shortcut gesture direction for performing the given action based on user
* preferences, raising an alert and exiting the tutorial if there is no corresponding gesture.
*
* @param action The action for which to find a gesture direction.
* @return A resource ID of the user-facing String describing the direction of a swipe gesture
* corresponding to the requested action. If multiple gestures correspond to the action, only
* one of them will be returned. If there is no gesture for the action, a negative value will
* be returned.
*/
protected int getGestureDirectionForRequiredAction(ShortcutGestureAction action) {
final AccessibilityTutorialActivity parentActivity = getParentTutorial();
final int direction = GesturePreferenceUtils.getDirectionForAction(parentActivity, action);
if (direction < 0) {
parentActivity.stopRepeating();
final String title =
parentActivity.getString(R.string.accessibility_tutorial_missing_assignment_title);
final String actionLabel = action.getLabel(parentActivity);
final String message =
parentActivity.getString(
R.string.accessibility_tutorial_missing_assignment_message, actionLabel);
parentActivity.showAlertDialogAndFinish(title, message);
}
return direction;
}