(the original)The original address
First, common classes
1. RACSiganl signal class.
RACEmptySignal: an empty signal used to implement the RACSignal +empty method;
RACReturnSignal: unary signal used to implement the RACSignal +return: method;
RACDynamicSignal: a dynamic signal that uses a block – to implement the subscription behavior. We created an instance of this class using RACSignal’s +createSignal: method.
RACErrorSignal: error signal used to implement RACSignal’s +error: method;
RACChannelTerminal: A terminal that represents a RACChannel and is used for bidirectional binding.
2. RACSubscriber subscriber
RACDisposable is used to unsubscribe or clean up resources and is triggered automatically when the signal is sent or when it is sent incorrectly.
RACSerialDisposable: used as a disposable container, can contain a Disposable and allow this Disposable to be swapped out by atomic operations;
RACKVOTrampoline: represents a KVO observation and can be used to stop an observation;
RACCompoundDisposable: It can contain multiple Disposable objects and supports manual addition and removal of Disposable objects
RACScopedDisposable: Calls its own -Dispose method when it is dealloc.
4. RACSubject signal provider, which can act as signal and send signal.
RACGroupedSignal: a grouping signal used to implement the grouping function of RACSignal.
RACBehaviorSubject: a signal replays the last value that, when subscribed, sends to the subscriber the value it last received;
RACReplaySubject: Replays the signal, saves the sent values, and resends them to the subscriber when subscribed.
The RACTuple tuple class, similar to NSArray, wraps values.
6, The collection class in RAC
7, RACCommand RAC used for event processing class, can be how the event processing, how the event data transfer, wrapped in this class, it can be very convenient to monitor the event execution process.
8. RACMulticastConnection Is used when a signal is subscribed multiple times. This class is used to ensure that the signal is created without multiple calls to the block used to create the signal.
9, RACScheduler RAC queue, with GCD encapsulation.
RACImmediateScheduler: The only scheduler that supported synchronous execution;
RACQueueScheduler: an abstract queue scheduler that asynchronously schedules all tasks in a GCD serial queue;
RACTargetQueueScheduler: Inherits from RACQueueScheduler and asynchronously schedules all tasks in a serial queue targeting an arbitrary GCD queue;
RACSubscriptionScheduler: A scheduler used only to schedule subscriptions.
Second, common usage
Rac_signalForSelector: Replaces the proxy
rac_valuesAndChangesForKeyPath: KVO
Rac_signalForControlEvents: Listens to events
Rac_addObserverForName instead of notification
Rac_textSignal: Listens for text changes in a text box
Rac_liftSelector: withSignalsFromArray: Signals: when the incoming Signals (array) signal, each signal sendNext at least once, will go to trigger the first selector parameter method.
Common macros
RAC(TARGET, [KEYPATH, [NIL_VALUE]]) : Used to bind a property of an object
RACObserve(self, name) : Listens on a property of an object and returns a signal.
@ weakify (Obj) and @ strongify (Obj)
RACTuplePack: Wraps data as RACTuple (tuple class)
RACTupleUnpack: Unpack RACTuple (tuple class) into corresponding data
RACChannelTo A terminal for bidirectional binding
Four, common operation methods
A flattenMap is used to map source signal content into new content.
Concat combines signals in a certain order. When multiple signals are sent, sequential signals are received
Then is used to connect two signals, and when the first signal is complete, the signal returned by then is connected.
Merge Merges multiple signals into one signal, which is called when any signal has a new value
ZipWith compresses two signals into a single signal, and the next event of the compressed stream is triggered only when both signals simultaneously emit signal contents and combine the contents of the two signals into a single tuple.
CombineLatest: To combine multiple signals and get the latest values of each signal, each combined signal must have sendNext at least once to trigger the combined signal.
Reduce aggregation: The content used for signal sending is a tuple, aggregating the values of the signal sending tuple into a value
Filter: indicates that you can obtain signals that meet the conditions.
Ignore: Signals that ignore certain values.
DistinctUntilChanged: signaled when there is a significant change between the previous value and the current value, otherwise ignored.
Take: Take N signals from the beginning
TakeLast: To get the last N signals, the subscriber must call completion, because only completion knows how many signals there are.
TakeUntil :(RACSignal *): Get a signal until a signal execution is complete
Skip :(NSUInteger): Several signals are skipped and not accepted.
SwitchToLatest: Used to obtain the latest signal sent by signalOfSignals.
DoNext: This Block is executed before Next
DoCompleted: This Block is executed before sendCompleted is executed
Timeout: allows a signal to automatically report an error after a certain period of time.
Interval: Sends signals at intervals
Delay Delays sending next.
Retry retry: On failure, the block in the creation signal is re-executed until it succeeds.
Replay: When a signal is subscribed multiple times, the content is played repeatedly
Throttle: When a signal is sent frequently, you can use throttling to stop sending signal content for a certain period of time and obtain the latest signal content after a certain period of time.
5. Ui-category (Common summary)
1. Rac_prepareForReuseSignal: used when reuse is required
Related UI: MKAnnotationView, UICollectionReusableView, UITableViewCell, UITableViewHeaderFooterView
Rac_buttonClickedSignal: Trigger the button event
Related UI: UIActionSheet, UIAlertView
3, rac_command: button class, refresh class related command replacement
Related UI: UIBarButtonItem, UIButton, UIRefreshControl
4. Rac_signalForControlEvents: Control event is triggered
Related UI: UIControl
5, rac_gestureSignal UIGestureRecognizer event processing signal
Related UI: UIGestureRecognizer
Rac_imageSelectedSignal Selects the image signal
Related UI: UIImagePickerController
7, rac_textSignal
Related UI: UITextField, UITextView
8. API for bidirectional binding
rac_channelForControlEvents: key: nilValue:
Related UI: UIControl class
rac_newDateChannelWithNilValue:
Related UI: UIDatePicker
rac_newSelectedSegmentIndexChannelWithNilValue:
Related UI: UISegmentedControl
rac_newValueChannelWithNilValue:
Related UI: UISlider, UIStepper
rac_newOnChannel
Related UI: UISwitch
rac_newTextChannel
Related UI: UITextField
6. Foundation-category
1, NSArray
Rac_sequence signal set
2, NSData
Rac_readContentsOfURL: Options: Scheduler: has more thread Settings than OC
3, NSDictionary
Rac_sequence don’t explain
Rac_keySequence key collection
Rac_valueSequence collection value
4, NSEnumerator
Rac_sequence don’t explain
5, NSFileHandle
Rac_readInBackground is known by name
6, NSIndexSet
Rac_sequence don’t explain
7, NSInvocation
Rac_setArgument: atIndex: Sets parameters
Rac_argumentAtIndex takes some argument
Rac_returnValue The return value of the associated method
8 NSNotificationCenter.
Rac_addObserverForName: object: registration notification
9 NSObject.
The rac_willDeallocSignal that is fired when the object is destroyed
Rac_description debug with
Rac_observeKeyPath: options: Observer: block: listens for an event
Rac_liftSelector: withSignals: All signals are executed by next
Rac_signalForSelector: Replaces a method
Rac_signalForSelector :(SEL) Selector fromProtocol: replaces the proxy
10, NSOrderedSet
Rac_sequence don’t explain
11, NSSet
Rac_sequence don’t explain
12, nsstrings
Rac_keyPathComponents retrieves all parts of a path
The final part of rac_keyPathByDeletingLastKeyPathComponent delete path
The first part rac_keyPathByDeletingFirstKeyPathComponent delete path
Rac_sequence not explained (character)
Rac_readContentsOfURL: usedEncoding: Scheduler: compared to OC multithreaded call
13, NSURLConnection
Rac_sendAsynchronousRequest Initiates asynchronous requests
14, NSUserDefaults
Rac_channelTerminalForKey is used for bidirectional binding, which is one