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我有一个登录页面，它向URL发出请求并将变量或用户名和密码发布到URL，然后在完成后将我带到新的View Controller。为HTTP请求添加错误和成功处理程序
当我把正确的用户名和密码的请求工作，因为我可以复制在日志中的HTML它显示我我的个人资料，我提出了要求。
如果我把错误的细节和我复制的HTML，我从日志或控制台获得登录页面的HTML。
我怎么会只将用户引导至新的View控制器或模态的TabBar当正确的细节投入。
我想表明一个错误，如果输入了错误的详细信息。
非常感谢
LoginTableViewController.h
#import <UIKit/UIKit.h>
@interface LoginTableViewController : UITableViewController
{
UITabBarController *tbc;
}
- (void)dismissTabBar;
@property (nonatomic, retain) UITabBarController *tbc;
@end
LoginTableViewController.m
#import "LoginTableViewController.h"
#import "rootViewController.h"
@interface LoginTableViewController()
@property (weak, nonatomic) IBOutlet UITextField *UIEmailTextField;
@property (weak, nonatomic) IBOutlet UITextField *UIPasswordTextField;
@end
@implementation LoginTableViewController
@synthesize UIEmailTextField;
@synthesize UIPasswordTextField;
@synthesize tbc;
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
}
- (void)viewDidUnload
{
[self setUIEmailTextField:nil];
[self setUIPasswordTextField:nil];
[super viewDidUnload];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#pragma mark - barButton Outlet
- (IBAction)loginButtonPressed:(UIBarButtonItem *)sender {
NSString *data = [NSString stringWithFormat:@"username=%@&password=%@",UIEmailTextField.text, UIPasswordTextField.text];
NSData *postData = [data dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
// preaparing URL request to send data.
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
NSString *url = [NSString stringWithFormat:@"https://online.vrmcapital.co.za"];
[request setURL:[NSURL URLWithString:url]];
[request setHTTPMethod:@"POST"];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setHTTPBody:postData];
[request setTimeoutInterval:7.0];
NSURLResponse *response;
NSError *error;
NSData *urlData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *str=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSLog(@"Login response:%@",str);
NSLog(@"Log In button was pressed!");
NSLog(@"Tab Bar Controller Button Clicked");
UIViewController *blueController = [[UIViewController alloc] initWithNibName:nil bundle:nil];
blueController.view.backgroundColor = [UIColor blueColor];
blueController.title = @"Blue";
blueController.tabBarItem.image = [UIImage imageNamed:@"Gallery.png"];
UIViewController *redController = [[UIViewController alloc] initWithNibName:nil bundle:nil];
redController.view.backgroundColor = [UIColor redColor];
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button setFrame:CGRectMake(20.0f, 140.0f, 280.0f, 40.0f)];
[button setTitle:@"Done" forState:UIControlStateNormal];
[button addTarget:self action:@selector(dismissTabBar) forControlEvents:UIControlEventTouchUpInside];
[redController.view addSubview:button];
//redController.title = @"Red1";
[redController setTitle:@"Red1" ];
redController.tabBarItem.image = [UIImage imageNamed:@"Gallery.png"];
image:[UIImage imageNamed:@"Gallery.png"];
tbc = [[UITabBarController alloc] initWithNibName:nil bundle:nil];
tbc.viewControllers = [NSArray arrayWithObjects:blueController, redController, nil];
tbc.selectedViewController = redController;
NSLog(@"Selected index = %d of %d", tbc.selectedIndex, [tbc.viewControllers count]);
//[blueController release];
//[redController release];
[self presentViewController:tbc animated:YES completion:nil];
}
- (void)dismissTabBar {
[[self tbc] dismissViewControllerAnimated:YES completion:nil];
}
@end