如何在單擊按鈕時推送TableView並使用NSDictionary初始化TableViewCell？

Question

任何人都可以請幫助我如何推單擊按鈕上的表視圖。 我想從NSMutableArray的消息加載到表視圖細胞和NSMutableArray裏裝有從URL解析的數據..

-(IBAction)readMessages:(id)sender 
{ 
    // i want to push the tableview when clicking the button in relation with this method 
    // WHAT MUST I DO HERE? 

    } 

與其問了一個新問題我喜歡編輯此一個，既然事情是在相同的方面.. 我現在可以編程創建tableview，但我不能初始化它的單元格與我從Json數組中獲得的數據。這裏是我的代碼：

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]]]; 
     //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 *messID=[mess valueForKeyPath:@"ID"]; 
       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]]]; 

       NSData *data2=[NSData dataWithContentsOfURL:url2]; 
       id result2=[NSJSONSerialization JSONObjectWithData:data2 options:NSJSONReadingMutableContainers error:nil]; 

       mesID = [NSMutableArray array];//saving meesage ID s to NSMutableArray 
       content = [NSMutableArray array];  
       // i logged here and it saves the data, now i want to display my data in table view 

       for (NSDictionary *data in mess) { 
        [mesID addObject:[data objectForKey:@"ID"]]; 
        [content addObject:[data objectForKey:@"message"]];   
        [[NSUserDefaults standardUserDefaults] setObject:messID forKey:@"message"]; 
        [[NSUserDefaults standardUserDefaults] setObject:messContent forKey:@"messContent"]; 

        //messID will be saved as the Title of the cells and messContent will be displayed as the text area of that cell, opening in a new view 

這是輸出，我想設置細胞作爲ID的標題及其文字內容：

2012-01-17 16:26:59.873 ipad_Teslim[940:f803] MessID: (
     1, 
     3 
    ) 
    2012-01-17 16:26:59.875 ipad_Teslim[940:f803] Content: (
     asdf, 
     "this is a test" 
    ) 

正如我在我的代碼已經提到過， messID將被保存爲單元格的標題，messContent將顯示爲該單元格的文本區域，並在新視圖中打開。我現在該怎麼做？請幫助我，那裏有很多教程，我看了很多，但無法打破這個問題。

Answer 1

Q1：U無需添加導航要返回UR主擴聲GE。 當過u使用

[self.navigationController pushViewController:next animated:YES]; 

由默認值將在下一視圖創建後退導航推回回來。

在情況下，它不尚未創建，嘗試使用以下代碼在下一視圖：

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    //To set the back buttin on leftside of Navigation bar 
    UIBarButtonItem *backButton = [[[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStyleDone target:self action:@selector(backclick:)] autorelease]; 
    self.navigationItem.leftBarButtonItem = backButton; 

} 

- (IBAction)backclick:(id)sender //first declrared in .h file 
{ 
    // To goback to the previous view 
    [self.navigationController popViewControllerAnimated:YES]; 
} 

Answer 2

試試這個：

-(IBAction)readMessages:(id)sender { 

    SecondView *secondView =[[SecondView alloc] initWithNibName:@"SecondView" bundle:nil]; 

    [self presentModalViewController:secondView animated:YES];  

    } 

SecondView是你的UIViewController子類持有一個UITableView。

Answer 3

如果妳有導航控制，如果ü要通過導航被推嘗試以下操作：

-(IBAction)readMessages:(id)sender { 
NextView *next = [[NextView alloc]initWithNibName:@"NextView" bundle:nil]; 
     [self.navigationController pushViewController:next animated:YES]; 
     [next release]; 
} 

如果u沒有一個導航控制和如果u想只是顯示下一個視圖，請嘗試以下：

-(IBAction)readMessages:(id)sender { 

    NextView *next =[[NextView alloc] initWithNibName:@"NextView" bundle:nil]; 

    [self presentModalViewController:next animated:YES]; 
      [next release]; 
    } 

如果妳有在同一個班副視點嘗試以下操作：

-(IBAction)readMessages:(id)sender { 

     [self.view addsubview nextView]; 
     } 

Answer 4

是U可以， 試試這個在viewDidLoad中創建廈門國際銀行programitically：

UIView *view1 = [[UIView alloc]initWithFrame:CGRectMake(10, 10,300,460)]; 
    view1.backgroundColor = [UIColor redColor]; 
    [self.view addSubview:view1]; 

不過還好用 以下在Xcode菜單路徑創建：

文件 - >新建 - > NEWFILE - > UIViewControllerSubClass - >下一步 - >下一步 - >創建

或者乾脆拖到&從烏爾Interface Builder中刪除一個視圖

Answer 5

Q2：U可以初始化UR的tableView細胞JSONArray：順便說

(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
{ 
    // Return the number of rows in the section. 
    return [JSONarray count]; //*********** 
} 

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    static NSString *CellIdentifier = @"Cell"; 

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    if (cell == nil) 
    { 
     cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; 


     cell.textLabel.text = [JSONarray objectAtIndexIndexPath.row]; //*********** 
}