三十三:IOS多视图跳转方法
第一种：跳转：[self presentModalViewController:control animated:YES];返回：[self dismissModalViewControllerAnimated:YES];第二种：跳转：[self.navigationController pushViewController:subTableViewController animated:YES];返回：[self.navigationController popViewControllerAnimated:YES];第三种:自己控制： [self.view addSubview:<#(UIView *)#>] [self.view removeFromSuperview];注意:pushViewController和popViewController进行视图间的切换，就必须要求当前视图是个NavigationController,
三十四:presentModalViewController与dismissModalViewControllerAnimated注意事项
在实际开发中，如果要弹出视图：我们常用到presentModalViewController方法和dismissModalViewControllerAnimated方法。presentModalViewController：弹出视图dismissModalViewControllerAnimated：隐藏视图弹出视图：FeedbackViewController *feedbackViewController = [[FeedbackViewController alloc]initWithNibName:@"FeedbackViewController" bundle:nil]; UINavigationController *navigationController = [[UINavigationController alloc]initWithRootViewController:feedbackViewController]; [self presentModalViewController:navigationController animated:YES];隐藏视图：[self dismissModalViewControllerAnimated:YES];关于这两个方法的几点说明：1.iPhone上弹出/隐藏 视图时，使用为全屏模式2.搞清楚谁是presenting，谁是presented如果A弹出B，那么A为presenting，B为presented。3.隐藏视图的策略我们假如A弹出B就是说，A负责隐藏B；如果我们在B中调用dismissModalViewControllerAnimated方法，那么编译器，自动将消息发送给A。等等，什么消息？简单的理解，当执行presentModalViewController:方法：在A弹出B时：执行A的viewWillDisappear方法，通知B执行自己的viewWillAppear方法和viewDidAppear执行A的viewDidDisappear方法当执行dismissModalViewControllerAnimated方法：隐藏B时：执行B的viewWillDisappear通知A执行自己的viewWillAppear方法和viewDidAppear方法执行B的viewDidDisappear方法以下我做了个测试来输出一轮AB切换：A：MoreB：Feed2012-12-27 14:01:23.666 WTV[1627:11303] -More--viewWillDisappear----2012-12-27 14:01:23.672 WTV[1627:11303] -Feed--viewWillAppear----2012-12-27 14:01:24.086 WTV[1627:11303] -Feed--viewDidAppear----2012-12-27 14:01:24.087 WTV[1627:11303] -More--viewDidDisappear----2012-12-27 14:01:25.745 WTV[1627:11303] -Feed--viewWillDisappear----2012-12-27 14:01:25.745 WTV[1627:11303] -More--viewWillAppear----2012-12-27 14:01:26.156 WTV[1627:11303] -More--viewDidAppear----2012-12-27 14:01:26.157 WTV[1627:11303] -Feed--viewDidDisappear----当我们信心慢慢，庆幸我们可以了解了这两个方法时，悲剧发生了：4.苹果官方已经把这两个方法 Deprecated in iOS 6.0. 了- (void)presentModalViewController:(UIViewController *)modalViewController animated:(BOOL)animated;- (void)dismissModalViewControllerAnimated:(BOOL)animated;取而代之的是：[self presentViewController:navigationController animated:YES completion:^(void){ // Code }];[self dismissViewControllerAnimated:YES completion:^(void){ // Code }];新接口的差别是提供了一个参数，允许你传入一个block。这个block的回调方法在VC的viewWillDisappear方法后调用。也就是被隐藏的VC对象被释放后运行回调。这样做的好处：可以方便做多个UI效果之间的衔接和转换。
三十五：视图跳载的几种动画
BaiDuViewController* baiduController=[mainStoryboard instantiateViewControllerWithIdentifier:@"baiduStoryboard"]; baiduController.modalTransitionStyle=UIModalTransitionStyleFlipHorizontal; [self presentViewController:baiduController animated:YES completion:^{ }];
三十六：JSONKit的使用方法
json开源的类库有很多，其中JSONKit库是非常简单易用而且效率又比较高的，重要的JSONKit适用于ios 5.0以下的版本。下载地址：https://github.com/johnezang/JSONKit使用JSONKit库来解析json文件，只需要下载JSONKit.h 和JSONKit.m添加到工程中，设置支持arc，在项目中build phases中的compile sources，选择jsonkit.m然后确认键输入－fno-objc-arc #import "JSONKit.h"//假设 strJson 是网络上接收到的 json 字符串，NSString *strJson = @"[{\"Id\": 1,\"BrandName\": \"爱马仕\" },{\"Id\": 2,\"BrandName\": \"安娜苏\"}]"; NSArray *arrlist=[strJson objectFromJSONString]; NSLog(@"%d",[arrlist count]); for (int i=0; i<[arrlist count]; i++) { NSDictionary *item=[arrlist objectAtIndex:i]; NSString *BrandName=[item objectForKey:@"BrandName"]; NSLog(@"%@",BrandName); }字典arrlist便是解析好的json文件了。JSONKit库也可以用来生成json文件NSMutableDictionary *jsonDic = [NSMutableDictionary dictionary];NSMutableDictionary *alert = [NSMutableDictionary dictionary];NSMutableDictionary *aps = [NSMutableDictionary dictionary];[alert setObject:@"a msg come!" forKey:@"body"];[aps setObject:alert forKey:@"alert"];[aps setObject:@"3" forKey:@"bage" ];[aps setObject:@"def.mp3" forKey:@"sound"];[jsonDic setObject:aps forKey:@"aps"];NSString *strJson = [jsonDic JSONString];另一个，其中operation.responseString就是下面那串json字符串，通过它进行解析： NSDictionary* resultDictionary=[operation.responseString objectFromJSONStringWithParseOptions:JKParseOptionLooseUnicode]; NSLog(@"%@ Items Found!",[resultDictionary objectForKey:@"weatherinfo"]); //{"weatherinfo":{"city":"北京","cityid":"101010100","temp":"3","WD":"北风","WS":"3级","SD":"24%","WSE":"3","time":"11:25","isRadar":"1","Radar":"JC_RADAR_AZ9010_JB","njd":"暂无实况","qy":"1028"}} self.weaLableInfo.text=[NSString stringWithFormat:@"城市：%@,温度:%@",[[resultDictionary objectForKey:@"weatherinfo"]objectForKey:@"city"],[[resultDictionary objectForKey:@"weatherinfo"]objectForKey:@"temp"]];
三十七：三十五：afnetworking2.0运用，结合json，引入afnetworking文件后，引入头文件就可以使用，支持arc
- (IBAction)JsonAction:(UIBarButtonItem *)sender { NSString* weatherUrl=[NSString stringWithFormat:@"%@%@.html",BaseURLString,self.UrlString]; AFHTTPRequestOperationManager* manager=[AFHTTPRequestOperationManager manager]; manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/html"]; [manager GET:weatherUrl parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) { NSDictionary* resultDictionary=[operation.responseString objectFromJSONStringWithParseOptions:JKParseOptionLooseUnicode]; NSLog(@"%@ Items Found!",[resultDictionary objectForKey:@"weatherinfo"]); //{"weatherinfo":{"city":"北京","cityid":"101010100","temp":"3","WD":"北风","WS":"3级","SD":"24%","WSE":"3","time":"11:25","isRadar":"1","Radar":"JC_RADAR_AZ9010_JB","njd":"暂无实况","qy":"1028"}} self.weaLableInfo.text=[NSString stringWithFormat:@"城市：%@,温度:%@",[[resultDictionary objectForKey:@"weatherinfo"]objectForKey:@"city"],[[resultDictionary objectForKey:@"weatherinfo"]objectForKey:@"temp"]]; } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"Error:%@",error); }]; }带post参数到服务端AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];//申明返回的结果是json类型manager.responseSerializer = [AFJSONResponseSerializer serializer];//申明请求的数据是json类型manager.requestSerializer=[AFJSONRequestSerializer serializer];//如果报接受类型不一致请替换一致text/html或别的manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/html"];//传入的参数NSDictionary *parameters = @{@"1":@"XXXX",@"2":@"XXXX",@"3":@"XXXXX"};//你的接口地址NSString *url=@"http://xxxxx";//发送请求[manager POST:url parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) { NSLog(@"JSON: %@", responseObject);} failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"Error: %@", error);}];三十三:IOS多视图跳转方法
第一种：跳转：[self presentModalViewController:control animated:YES];返回：[self dismissModalViewControllerAnimated:YES];第二种：跳转：[self.navigationController pushViewController:subTableViewController animated:YES];返回：[self.navigationController popViewControllerAnimated:YES];第三种:自己控制： [self.view addSubview:<#(UIView *)#>] [self.view removeFromSuperview];注意:pushViewController和popViewController进行视图间的切换，就必须要求当前视图是个NavigationController,
三十四:presentModalViewController与dismissModalViewControllerAnimated注意事项
在实际开发中，如果要弹出视图：我们常用到presentModalViewController方法和dismissModalViewControllerAnimated方法。presentModalViewController：弹出视图dismissModalViewControllerAnimated：隐藏视图弹出视图：FeedbackViewController *feedbackViewController = [[FeedbackViewController alloc]initWithNibName:@"FeedbackViewController" bundle:nil]; UINavigationController *navigationController = [[UINavigationController alloc]initWithRootViewController:feedbackViewController]; [self presentModalViewController:navigationController animated:YES];隐藏视图：[self dismissModalViewControllerAnimated:YES];关于这两个方法的几点说明：1.iPhone上弹出/隐藏 视图时，使用为全屏模式2.搞清楚谁是presenting，谁是presented如果A弹出B，那么A为presenting，B为presented。3.隐藏视图的策略我们假如A弹出B就是说，A负责隐藏B；如果我们在B中调用dismissModalViewControllerAnimated方法，那么编译器，自动将消息发送给A。等等，什么消息？简单的理解，当执行presentModalViewController:方法：在A弹出B时：执行A的viewWillDisappear方法，通知B执行自己的viewWillAppear方法和viewDidAppear执行A的viewDidDisappear方法当执行dismissModalViewControllerAnimated方法：隐藏B时：执行B的viewWillDisappear通知A执行自己的viewWillAppear方法和viewDidAppear方法执行B的viewDidDisappear方法以下我做了个测试来输出一轮AB切换：A：MoreB：Feed2012-12-27 14:01:23.666 WTV[1627:11303] -More--viewWillDisappear----2012-12-27 14:01:23.672 WTV[1627:11303] -Feed--viewWillAppear----2012-12-27 14:01:24.086 WTV[1627:11303] -Feed--viewDidAppear----2012-12-27 14:01:24.087 WTV[1627:11303] -More--viewDidDisappear----2012-12-27 14:01:25.745 WTV[1627:11303] -Feed--viewWillDisappear----2012-12-27 14:01:25.745 WTV[1627:11303] -More--viewWillAppear----2012-12-27 14:01:26.156 WTV[1627:11303] -More--viewDidAppear----2012-12-27 14:01:26.157 WTV[1627:11303] -Feed--viewDidDisappear----当我们信心慢慢，庆幸我们可以了解了这两个方法时，悲剧发生了：4.苹果官方已经把这两个方法 Deprecated in iOS 6.0. 了- (void)presentModalViewController:(UIViewController *)modalViewController animated:(BOOL)animated;- (void)dismissModalViewControllerAnimated:(BOOL)animated;取而代之的是：[self presentViewController:navigationController animated:YES completion:^(void){ // Code }];[self dismissViewControllerAnimated:YES completion:^(void){ // Code }];新接口的差别是提供了一个参数，允许你传入一个block。这个block的回调方法在VC的viewWillDisappear方法后调用。也就是被隐藏的VC对象被释放后运行回调。这样做的好处：可以方便做多个UI效果之间的衔接和转换。
三十五：视图跳载的几种动画
BaiDuViewController* baiduController=[mainStoryboard instantiateViewControllerWithIdentifier:@"baiduStoryboard"]; baiduController.modalTransitionStyle=UIModalTransitionStyleFlipHorizontal; [self presentViewController:baiduController animated:YES completion:^{ }];
三十六：JSONKit的使用方法
json开源的类库有很多，其中JSONKit库是非常简单易用而且效率又比较高的，重要的JSONKit适用于ios 5.0以下的版本。下载地址：https://github.com/johnezang/JSONKit使用JSONKit库来解析json文件，只需要下载JSONKit.h 和JSONKit.m添加到工程中，设置支持arc，在项目中build phases中的compile sources，选择jsonkit.m然后确认键输入－fno-objc-arc #import "JSONKit.h"//假设 strJson 是网络上接收到的 json 字符串，NSString *strJson = @"[{\"Id\": 1,\"BrandName\": \"爱马仕\" },{\"Id\": 2,\"BrandName\": \"安娜苏\"}]"; NSArray *arrlist=[strJson objectFromJSONString]; NSLog(@"%d",[arrlist count]); for (int i=0; i<[arrlist count]; i++) { NSDictionary *item=[arrlist objectAtIndex:i]; NSString *BrandName=[item objectForKey:@"BrandName"]; NSLog(@"%@",BrandName); }字典arrlist便是解析好的json文件了。JSONKit库也可以用来生成json文件NSMutableDictionary *jsonDic = [NSMutableDictionary dictionary];NSMutableDictionary *alert = [NSMutableDictionary dictionary];NSMutableDictionary *aps = [NSMutableDictionary dictionary];[alert setObject:@"a msg come!" forKey:@"body"];[aps setObject:alert forKey:@"alert"];[aps setObject:@"3" forKey:@"bage" ];[aps setObject:@"def.mp3" forKey:@"sound"];[jsonDic setObject:aps forKey:@"aps"];NSString *strJson = [jsonDic JSONString];另一个，其中operation.responseString就是下面那串json字符串，通过它进行解析： NSDictionary* resultDictionary=[operation.responseString objectFromJSONStringWithParseOptions:JKParseOptionLooseUnicode]; NSLog(@"%@ Items Found!",[resultDictionary objectForKey:@"weatherinfo"]); //{"weatherinfo":{"city":"北京","cityid":"101010100","temp":"3","WD":"北风","WS":"3级","SD":"24%","WSE":"3","time":"11:25","isRadar":"1","Radar":"JC_RADAR_AZ9010_JB","njd":"暂无实况","qy":"1028"}} self.weaLableInfo.text=[NSString stringWithFormat:@"城市：%@,温度:%@",[[resultDictionary objectForKey:@"weatherinfo"]objectForKey:@"city"],[[resultDictionary objectForKey:@"weatherinfo"]objectForKey:@"temp"]];
三十七：三十五：afnetworking2.0运用，结合json，引入afnetworking文件后，引入头文件就可以使用，支持arc
- (IBAction)JsonAction:(UIBarButtonItem *)sender { NSString* weatherUrl=[NSString stringWithFormat:@"%@%@.html",BaseURLString,self.UrlString]; AFHTTPRequestOperationManager* manager=[AFHTTPRequestOperationManager manager]; manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/html"]; [manager GET:weatherUrl parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) { NSDictionary* resultDictionary=[operation.responseString objectFromJSONStringWithParseOptions:JKParseOptionLooseUnicode]; NSLog(@"%@ Items Found!",[resultDictionary objectForKey:@"weatherinfo"]); //{"weatherinfo":{"city":"北京","cityid":"101010100","temp":"3","WD":"北风","WS":"3级","SD":"24%","WSE":"3","time":"11:25","isRadar":"1","Radar":"JC_RADAR_AZ9010_JB","njd":"暂无实况","qy":"1028"}} self.weaLableInfo.text=[NSString stringWithFormat:@"城市：%@,温度:%@",[[resultDictionary objectForKey:@"weatherinfo"]objectForKey:@"city"],[[resultDictionary objectForKey:@"weatherinfo"]objectForKey:@"temp"]]; } failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"Error:%@",error); }]; }带post参数到服务端AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];//申明返回的结果是json类型manager.responseSerializer = [AFJSONResponseSerializer serializer];//申明请求的数据是json类型manager.requestSerializer=[AFJSONRequestSerializer serializer];//如果报接受类型不一致请替换一致text/html或别的manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/html"];//传入的参数NSDictionary *parameters = @{@"1":@"XXXX",@"2":@"XXXX",@"3":@"XXXXX"};//你的接口地址NSString *url=@"http://xxxxx";//发送请求[manager POST:url parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) { NSLog(@"JSON: %@", responseObject);} failure:^(AFHTTPRequestOperation *operation, NSError *error) { NSLog(@"Error: %@", error);}];
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