我有一个 Tabbar/Tableview 应用程序,它在应用程序加载时以模态方式加载登录/注册视图,我在设置包中为名称和密码设置了 Root.plist,并成功检索了这些项目。我希望能够做两件事:
1) 进行测试以查看 NSUserDefault 字符串是否为空,如果是,则加载登录/注册视图。
2) 如果字符串可用,则使用字符串内容登录我的 Web 服务。
提前致谢。
这是我的 LoginViewController .m :
@synthesize usernameField;
@synthesize passwordField;
@synthesize loginButton;
@synthesize loginIndicator;
@synthesize usernameLabel;
@synthesize passwordLabel;
-(void)refreshFields {
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
usernameLabel.text = [defaults objectForKey:kUsernameKey];
passwordLabel.text = [defaults objectForKey:kPasswordKey];
}
- (void)viewDidAppear:(BOOL)animated {
[self refreshFields];
[super viewDidAppear:animated];
}
- (void)viewDidLoad {
[super viewDidLoad];
[self refreshFields];
[self.navigationController setNavigationBarHidden:YES animated:NO];
}
- (IBAction) login: (id) sender
{
{
NSString *post =[NSString stringWithFormat:@"username=%@&password=%@",usernameField.text, passwordField.text];
NSString *hostStr = @"http:~iphone_login.php?";
hostStr = [hostStr stringByAppendingString:post];
NSData *dataURL = [NSData dataWithContentsOfURL: [ NSURL URLWithString: hostStr ]];
NSString *serverOutput = [[NSString alloc] initWithData:dataURL encoding: NSASCIIStringEncoding];
NSLog(@"Site: %@",hostStr);
NSLog(@"Site: %@",serverOutput);
if([serverOutput isEqualToString:@"Yes"]){
UIAlertView *alertsuccess = [[UIAlertView alloc] initWithTitle:@"Congrats" message:@"You are authorized "
delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
[alertsuccess show];
[alertsuccess release];