乐高式的代理模式。
使用BlockParty来替换所有的代理回调为块（或者只是部分--所有的代理回调在所有情况下仍然被触发）。
[self.peripheralManager prt_peripheralManagerIsReadyToUpdateSubscribersHandler:
^(CBPeripheralManager* manager) {
[self sendData];
}];[peripheral prt_discoverServices:services
completion:^(CBPeripheral* peripheral, NSError* error) {
if (error) {
NSLog(@"error discovering services %@", error);
} else {
for (CBService* service in peripheral.services) {
if ([service.UUID.UUIDString isEqualToString:TRANSFER_SERVICE_UUID]) {
self.foundService = service;
NSArray *characteristics = @[ [CBUUID UUIDWithString:TRANSFER_CHARACTERISTIC_UUID] ];
[self.peripheral discoverCharacteristics:characteristics
forService:self.foundService];
break;
}
}
}
}];[self.navigationController prt_pushViewController:someViewController
animated:YES
preparation:^(UINavigationController *navigationController,
UIViewController *presentingViewController) {
NSLog(@"Hi! I execute before the nav push!");
}
completion:^(UINavigationController *navigationController,
UIViewController *presentedViewController,
NSArray *poppedViewControllers) {
NSLog(@"Hi! I execute after the nav push!");
}];在开发期间想要一个立即失败的断言以及在生产中优雅退出的功能吗？如果您曾经写过类似下面这样的代码
NSAssert(expression, @"something went wrong");
if (expression) {
NSLog(@"production success code");
} else {
NSLog(@"production failure code");
}那么您可以使用这个工具宏来结合assert和条件
PRTAssert(expression,
^{ NSLog(@"production success code"); },
^{ NSLog(@"production failure code"); },
@"something went wrong")