已创建登录页面，经过身份验证后，用户将能够访问选项卡视图。想问一下是否可以将包含 URL 的字符串值传递给选项卡的第一个视图并同时显示选项卡的视图？
这是我的代码，
登录视图控制器.m
//
// LoginViewController.m
// LoginJson
//
// Created by Ng Zhi Wei on 26/6/13.
// Copyright (c) 2013 Ng Zhi Wei. All rights reserved.
//
#import "LoginViewController.h"
#import "PhotoViewController.h"
#import "JSONKit.h"
@interface LoginViewController ()
@end
@implementation LoginViewController
NSString *userNameGlobal;
NSString *passwordGlobal;
NSString *photoUrlGlobal;
NSMutableArray *array = nil; //added
NSMutableData *responseData = nil; //added
@synthesize todoItems; //added
- (void)viewDidLoad
{`enter code here`
// Begin Add
// URL that calls into the Azure Service`enter code here`
NSString *serviceUri = @"https://excubantmobileservice.azure-mobile.net/tables/UserInfo";
// Convert to NSURL type
NSURL *myURL = [NSURL URLWithString:serviceUri];
// Create a request object
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:myURL
cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
timeoutInterval:60];
// Modify http headers for GET request
[request setHTTPMethod: @"GET"];
// Indicate JSON Data Format
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
// Indicate host property
[request setValue:@"excubantmobileservice.azure-mobile.net" forHTTPHeaderField:@"Host"];
// Indicate application key (you get this from the portal)
[request setValue:@"EMhqrMsBajSIlVuOYLuOJRQoGHHImu90" forHTTPHeaderField:@"X-ZUMO-APPLICATION"];
// Execute request
[NSURLConnection connectionWithRequest:request delegate:self];
// Allocate list of results to TableViewControl
self.todoItems = [[NSMutableArray alloc] initWithArray:array];
// End Add
[super viewDidLoad];
}
// Add this code for the responseData processing
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
responseData = [[NSMutableData alloc] init];
}
// Add this code for the responseData processing
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
[responseData appendData:data];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
// Some debugging code
NSLog(@"Succeeded! Received %d bytes of data",[responseData
length]);
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void) alertStatus:(NSString *)msg :(NSString *)title
{
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:title
message:msg
delegate:self
cancelButtonTitle:@"Ok"
otherButtonTitles:nil, nil];
[alertView show];
}
- (IBAction)loginClicked:(id)sender {
// Create an array from the response data
NSArray *itemArray = [responseData objectFromJSONData];
Boolean isFound = false;
NSString *data1 = nil;
NSString *data2 = nil;
NSString *data3 = nil;
array = [[NSMutableArray alloc] init];
// Loop through array of results, pulling out the "text" column
for(NSDictionary * dataDict in itemArray)
{
// Build up array. Later we'll append array to
// TableView control
data1 = [dataDict objectForKey:@"userId"];
[array addObject:data1];
data2 = [dataDict objectForKey:@"password"];
[array addObject:data2];
data3 = [dataDict objectForKey:@"photoUrl"];
[array addObject:data3];
if ([[_txtUserName text] isEqualToString:data1] && [[_txtPassword text] isEqualToString:data2] ) {
userNameGlobal = data1;
passwordGlobal = data2;
photoUrlGlobal = data3;
}
}
if ([[_txtUserName text] isEqualToString:userNameGlobal] && [[_txtPassword text] isEqualToString:passwordGlobal] ) {
[self alertStatus:@"Welcome!" :@"Login Success!"];
NSLog(photoUrlGlobal);
isFound = true;
UIStoryboard *mainStoryBoard = [UIStoryboard storyboardWithName:@"MainStoryboard_iPhone" bundle:nil];
UITabBarController *vc = [mainStoryBoard instantiateViewControllerWithIdentifier:@"photoPush"];
[self presentViewController:vc animated:YES completion:nil];
}
if (!isFound) {
[self alertStatus:@"Incorrect Username & Password!" :@"Login Failure!"];
}
}
- (IBAction)backgroundClick:(id)sender {
[_txtPassword resignFirstResponder];
[_txtUserName resignFirstResponder];
}
@end
PhotoViewController.m
//
// PhotoViewController.m
// MJPEG
//
// Created by Ng Zhi Wei on 10/6/13.
// Copyright (c) 2013 cflim. All rights reserved.
//
#import "PhotoViewController.h"
@interface PhotoViewController ()
@end
@implementation PhotoViewController
@synthesize photoUrl;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
NSString *fullURL = photoUrl;
NSURL *url = [NSURL URLWithString:fullURL];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[_photoView loadRequest:requestObj];
NSLog(fullURL);
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)refreshPage:(id)sender {
[_photoView reload];
}
@end