请先看前一篇文章<移动互联网app业务逻辑图>,以便于理解
http://blog.csdn.net/uxyheaven/article/details/14156659
1 start
- (IBAction)clickStart:(id)sender { for (int i = 0; i < 6; i++) { UILabel *label = (UILabel *)[self.view viewWithTag:i + 10000]; label.textColor = [UIColor blueColor]; } [self performSelector:@selector(start) withObject:nil afterDelay:1]; }
2 发送请求
-(void) httpGET{ UILabel *label = (UILabel *)[self.view viewWithTag:1 + 10000]; label.textColor = [UIColor redColor]; __block id myself =self; HttpRequest *request = [self.entityModel.requestHelper get:@"api/nodes.json"]; [request succeed:^(HttpRequest *op) { UILabel *label = (UILabel *)[self.view viewWithTag:2 + 10000]; label.textColor = [UIColor redColor]; if([op isCachedResponse]) { NSLog(@"Data from cache %@", [op responseString]); [myself parseData:[op responseString] isCachedResponse:YES]; } else { NSLog(@"Data from server %@", [op responseString]); [myself parseData:[op responseString] isCachedResponse:NO]; } } failed:^(HttpRequest *op, NSError *err) { NSString *str = [NSString stringWithFormat:@"Request error : %@", [err localizedDescription]]; NSLogD(@"%@", str); // SHOWMBProgressHUD(@"Message", str, nil, NO, 3); [self loadFromDBProcess]; }]; [self.entityModel.requestHelper submit:request]; }
3 解析请求
-(void) parseData:(NSString *)str isCachedResponse:(BOOL)isCachedResponse{ UILabel *label = (UILabel *)[self.view viewWithTag:3 + 10000]; label.textColor = [UIColor redColor]; self.model = [str toModels:[RubyChinaNodeEntity class]]; [self performSelector:@selector(refreshUI) withObject:nil afterDelay:1]; if (isCachedResponse) { ; }else{ [self performSelector:@selector(saveToDBProcess) withObject:nil afterDelay:1]; } }
4 持久化
-(void) saveToDBProcess{ UILabel *label = (UILabel *)[self.view viewWithTag:4 + 10000]; label.textColor = [UIColor redColor]; PERF_ENTER_( saveAllToDB ) [self.model saveAllToDB]; PERF_LEAVE_( saveAllToDB ) }
5 刷新UI
-(void) refreshUI{ UILabel *label = (UILabel *)[self.view viewWithTag:5 + 10000]; label.textColor = [UIColor redColor]; if (self.model && self.model.count > 0) { NSString *str = [[self.model objectAtIndex:0] YYJSONString]; SHOWMBProgressHUD(@"Data", str, nil, NO, 3); } }
6 读取数据库
-(void) loadFromDBProcess{ self.model = [NSArray loadFromDBWithClass:[RubyChinaNodeEntity class]]; [self performSelector:@selector(refreshUI) withObject:nil afterDelay:1]; }
具体代码请在
https://github.com/uxyheaven/XYQuickDevelop
BusinessVC中查看