DMRemoteRequest

iOS library which structures the handling and routing of requests originating from an Watch

Purpose

To easily facilitate communication to and from a watch application and its host app, and to keep your App Delegate clean

Installation

To the host app add:

DMRemoteRequestPrivate.h
DMRemoteRequestRouter.h
DMRemoteRequestRouter.m
DMRemoteRequestProtocol.h

To the watch extension add:

DMRemoteRequestPrivate.h
DMRemoteRequestObserver.h
DMRemoteRequestObserver.m

Usage

In Host App

In your AppDelegate pass the openApplication call to DMRemoteRequest

- (void)application:(UIApplication *)application handleWatchKitExtensionRequest:(NSDictionary *)userInfo reply:(void (^)(NSDictionary *))reply {
    
    [[]DMRemoteRequestRouter sharedRouter] handleCommand:userInfo reply:reply];
}

To handle a request from the watch, register a block or a class to handle it

    [self.router registerBlock:^(NSDictionary *userInfo, void (^callback)(NSDictionary *)) {
        callback(@{@"state": @"All systems go!"});
    } forMethod:@"state"];

With a class:

[self.router registerClass:TestOperation.class forMethod:@"date"];

Or, using a subscript:

self.router[@"date"] = TestOperation.class;

To send a notification to the watch,

[self.router notifyWatch];

In Watch Extension

To request data from the host application, in your watch extension use the application:handleWatchKitExtensionRequest:reply: method on WKInterfaceController, and include the key DMMethodNameKey with the method name for the object.

[WKInterfaceController openParentApplication:@{DMMethodNameKey: @"getState"} reply:^(NSDictionary *replyInfo, NSError *error) {
    NSLog(@"state: %@", replyInfo[@"state"]);
}];

To receive notifications from the host app, register an observer for the notification DMRemoteCommandNotificationName. If you want to send data bi-directionally, MMWormHole can also be used in companion with DMRemoteRequest.

Contributions

Are welcome, please submit issues and PRs!