A threadsafe, lightweight implementation of Promises in Objective-C.

安装

建议使用 CocoaPods 进行安装，尽管如果您希望，您也可以使用 git 子模块。pod 'DANPromise'

用法

DANDeferredValue *deferred = [DANDeferredValue deferredValue];
DANPromise *promise = [deferred promise];

[promise then:^(id result) {
    NSLog(@"Completed with result: %@", result);
}];

[promise fullfill:@"Hello"];