Question

我创建了一个以登录页面开头的应用程序，在输入一些用户信息后，我将GET发送到服务器。使用响应值我动态创建按钮，标题等。一切都很好，但在我发送GET并使用JSON响应后，我的按钮正在使用登录页面在同一视图上创建。我还想在该视图上创建一个新视图并创建按钮。由于我使用了一些来自用户信息的参数，我需要使用我的MainViewController在同一个类中创建视图（在我的例子中它是BNT_1ViewController），但我无法弄清楚如何处理这种情况。我也在分享代码，也许有帮助。
第二个问题，使用此代码我的按钮只是向下移动，但我想要两行按钮。如何更改x轴上按钮的位置？我更改了这些值，但整个列都发生了变化，即使我只想在同一行中放置两个按钮，所有结构都会替换..

   -(IBAction)Accept:(id)sender
    {   userName=[[NSString alloc] initWithString:userNameField.text ];
        [userNameField setText:userName];
        NSUserDefaults *userNameDef= [NSUserDefaults standardUserDefaults];
        [userNameDef setObject:userName forKey:@"userNameKey"];
        password =[[NSString alloc] initWithString:passwordField.text];
        [passwordField setText:password];
        NSUserDefaults *passDef=[NSUserDefaults standardUserDefaults];
        [passDef setObject:password forKey:@"passwordKey"];
       serverIP=[[NSString alloc] initWithString: serverField.text];
        [serverField setText:serverIP];
        NSUserDefaults *serverDef=[NSUserDefaults standardUserDefaults];
        [serverDef setObject:serverIP forKey:@"serverIPKey"];
        [userNameDef synchronize];
        [serverDef synchronize];
        [passDef synchronize];
        UIAlertView *message = [[UIAlertView alloc] initWithTitle:@"BNTPRO "
                                                          message:@"Your User Informations are going to be sent to server. Do you accept?"
                                                         delegate:self
                                                cancelButtonTitle:@"OK"
                                                otherButtonTitles:@"Cancel",  nil];
        [message show];
        }
 - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
    {


     NSString *title = [alertView buttonTitleAtIndex:buttonIndex];
         if([title isEqualToString:@"OK"])
        {
             if([userNameField.text isEqualToString:@"" ]|| [passwordField.text isEqualToString:@""] || [serverField.text length]<10) 
            {
                UIAlertView *message1 = [[UIAlertView alloc] initWithTitle:@"BNTPRO "
                                                                   message:@"Your User Informations are not defined properly!"
                                                                  delegate:nil
                                                         cancelButtonTitle:@"OK"
                                                         otherButtonTitles:  nil];
                [message1 show];
                [userNameField  resignFirstResponder];
                [passwordField resignFirstResponder];
                            return;
            }
            //## GET code to here**
            NSString *str1=[@"?username=" stringByAppendingString:userNameField.text];
            NSString *str2=[@"&password=" stringByAppendingString:passwordField.text];
            NSString *str3=[str1 stringByAppendingString:str2];
            NSString *str4 =[@"http://" stringByAppendingString:serverField.text];
      NSURL *url=[NSURL URLWithString:[str4 stringByAppendingString:[@"/ipad/login.php" stringByAppendingString:str3]]];
        NSLog(@"%@\n",url);
        //get the url to jsondata
        NSData *jSonData=[NSData dataWithContentsOfURL:url];

        if (jSonData!=nil) {
            NSError *error=nil;
            id result=[NSJSONSerialization JSONObjectWithData:jSonData options:
                       NSJSONReadingMutableContainers error:&error];
            if (error==nil) {
               NSDictionary *mess=[result objectForKey:@"message"];
                NSDictionary *messContent=[mess valueForKeyPath:@"message"];
                NSDictionary *messDate=[mess valueForKeyPath:@"date"];
                NSDictionary *messID=[mess valueForKeyPath:@"ID"];
                NSLog(@"%@ *** Message %@ \n Message Content: %@ \n Mesage ID: %@ \n Message Date: %@", result, mess, messContent, messID,messDate);
                NSString*key1=[ result objectForKey:@"key" ];
                NSString *s1=[@"http://" stringByAppendingString:serverField.text];
                NSString *s2=[s1 stringByAppendingString:@"/ipad/button.php"];
                NSURL *url2=[NSURL URLWithString:[s2 stringByAppendingString:[@"?key=" stringByAppendingString:key1]]];
                NSLog(@"\n%@\n",url2 );
                NSData *data2=[NSData dataWithContentsOfURL:url2];
                id result2=[NSJSONSerialization JSONObjectWithData:data2 options:NSJSONReadingMutableContainers error:nil];

                //i create buttons from here
                 self.buttons = [NSMutableArray array];
                CGFloat yPosition = 43.0f;//measure from top point
                CGFloat xPosition = 34.0f;
                const CGFloat buttonHeight = 70.0f;//height
                 const CGFloat buttonMargin = 32.0f;//distance between two buttons

                for(NSDictionary* buttonData in result2) {

                    UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
                NSString* buttonTitle = [buttonData objectForKey:@"name"];
          [button addTarget:self action:@selector(secondAct:) forControlEvents:UIControlEventTouchUpInside];
                 [button setBackgroundColor:[UIColor cyanColor]];

                [button setTitle:buttonTitle forState:UIControlStateNormal];

              //      button.frame = CGRectMake(20.0f, yPosition, 130.0f, buttonHeight);//if([count]%2==1)
                     NSLog(@"Ne oluyor?= %d",[buttonData count]);

                 button.frame = CGRectMake(170.0f, yPosition, 130.0f, buttonHeight);//if([count]%2==1)



                [button addTarget:self action:@selector(secondAct:)                   forControlEvents:UIControlEventTouchUpInside];
                [self.view addSubview:button];
                [self.buttons addObject:button];
                yPosition+= buttonHeight + buttonMargin;
    }        }
}
else if([title isEqualToString:@"Cancel"])
{
    NSLog(@"You changed your mind!");
}
}

Answer 1

以下是您的疑问的答案，可能会对您有所帮助 - 我还想创建一个新视图并在该视图上创建按钮。为此，您可以创建一个新的视图控制器，并在收到响应后推送该视图控制器。您也可以将响应从一个控制器浮动到另一个控制器。 2.第二个问题，使用此代码我的按钮只是向下移动，但我想要两行按钮你需要正确设置按钮框，然后才能完美地工作。

如何在新视图中显示方法的结果？

1 个答案: