ORKPasscodeStepViewController Class Reference
Inherits from | ORKStepViewController : UIViewController |
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Declared in | ORKPasscodeStepViewController.h ORKPasscodeStepViewController.m |
Overview
An ORKPasscodeStepViewController
object is the view controller for an ORKPasscodeStep
object.
A passcode view controller can be instantiated indirectly by adding a passcode step to a consent task and present the task using a task view controller. When appropriate, the task view controller instantiates the step view controller for the step.
– result
The current state of the result. (read-only)
- (ORKStepResult *)result
Discussion
The task view controller uses this property to get the results for the step, and to collate them into the task result.
The current step result and any subsidiary results representing data collected
so far are available in this property. You can detect significant changes to the result,
such as when the user enters a new answer, using the
stepViewControllerResultDidChange:
delegate callback.
Subclasses must use this property to return the current results. Subclasses may call super to obtain a clean, empty result object appropriate for the step, to which they can attach appropriate child results.
The implementations of this method in the ResearchKit framework currently create a new result object on every call, so do not call this method unless it is actually necessary.
Declared In
ORKStepViewController.h
– addResult:
Add a result to the step view controller’s ORKStepResult
. By default, the property for
the step view controller’s result will instantiate a copy of the result each time it is
called. Therefore, the result cannot be mutated by adding a result to its result array.
- (void)addResult:(ORKResult *)result
Discussion
This method can be called by a delegate to add a result to a given step in a way that will be retained by the step.
Declared In
ORKStepViewController.h
– promptTouchIdWithDelay
Device does not support Touch ID.
- (void)promptTouchIdWithDelay
Declared In
ORKPasscodeStepViewController.m
+ savePasscode:withTouchIdEnabled:
Stores the given passcode as the user’s unlock passcode to the keychain.
+ (void)savePasscode:(NSString *)passcode withTouchIdEnabled:(BOOL)touchIdEnabled
Parameters
passcode |
The passcode to store |
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touchIdEnabled |
Whether TouchId will be available during passcode entry |
Discussion
This method will raise an exception if passcode
is nil.
Declared In
ORKPasscodeStepViewController_Internal.h