在iphone中的動態UIButton控制和操作？

我正在創建一個包含動態頁面的應用程序。實際上，我通過檢查服務器的響應，創建了一些動態問題和UIButtons（自定義複選框）。我的代碼是在這裏，在iphone中的動態UIButton控制和操作？

NSString *response=[ResponseFromServer ObjectAtIndex:0]; 


if ([comSt compare: @"CheckBoxList"]==NSOrderedSame) 
      { 

       int count=[ResponseFromServer count]; 

          for(int i=0;i<count;i++) 
          { 


           button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 
           button.tag=i; 
           [button setFrame:CGRectMake(0.0f, 0.0f, 37, 37)]; 
           [button setCenter:CGPointMake(116.0,p1)]; 
           [button setImage:[UIImage imageNamed:@"uncheck.png"] forState:UIControlStateNormal]; 

           [button setBackgroundColor:[UIColor whiteColor]]; 
           [button addTarget:self action:@selector(checkButtonTapped:) forControlEvents:UIControlEventTouchUpInside]; 
           [self.scrollView addSubview:button]; 

           p1=p1+30; 
          } 

-(void)checkButtonTapped:(id)sender 
    { 

     int tagVal = [(UIButton*)sender tag]; 


     if (tagVal==0) { 
       NSLog(@"tag = 0"); 

      [button setSelected:YES]; 
      [button setImage:[UIImage imageNamed:@"check.png" forState:UIControlStateSelected]; //not working, button image is not changing 



     }

假設我已經創建了5個動態按鈕與不同的標籤。我首先將所有這些按鈕的圖像設置爲uncheck.png。有用。但是當我點擊一個特定的按鈕，並需要將該按鈕圖像更改爲checked.png，它不在按鈕操作上工作。我需要改變它像複選框控件，我將如何訪問從一組按鈕動態創建的按鈕的控制？

我覺得你能理解我的要求，在此先感謝..

來源

2012-07-02 neerajPK

給出一個方法只需要爲一個按鈕 –

是的，我只是檢查只按鈕設置條件。 – neerajPK

同時添加動態按鈕組[按鈕setSelected：NO];

更換方法，並添加下面

-(void)checkButtonTapped:(id)sender 
{ 

    UIButton *curButton = (UIButton*)sender 

    if (curButton.tag==0) 
    { 
    [self buttonAction:curButton]; 
    } 

    if (curButton.tag==1) 
    { 
     [self buttonAction:curButton]; 
    } 

    // continues 
} 


-(void)buttonAction:(UIButton *)curButton 
{ 

    if(![curButton isSelected]) 
    { 
     [curButton setSelected:YES]; 
     [curButton setImage:[UIImage imageNamed:@"check.png" forState:UIControlStateSelected]; //not working, button image is not changing 
    } else { 
     [curButton setSelected:NO]; 
     [curButton setImage:[UIImage imageNamed:@"uncheck.png"] forState:UIControlStateNormal]; 

    } 
}

來源

2012-07-02 05:56:55

我試過這個代碼，並與斷點檢查，controll去這一行[按鈕setImage：[UIImage imageNamed：@「check.png」forState：UIControlStateSelected] ;成功但按鈕圖像不變。 – neerajPK

檢查編輯答案我已經編輯buttonAction方法代替再次 –

它不工作safecase ..，控制研究達到，但我不知道是什麼問題 – neerajPK

在你的代碼需要改變這樣的

試試這個代碼

if ([comSt compare: @"CheckBoxList"]==NSOrderedSame) 
    { 
     int count=[ResponseFromServer count]; 

     for(int i=0;i<count;i++) 
     { 
      button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 
      button.tag=0; 
      [button setFrame:CGRectMake(0.0f, 0.0f, 37, 37)]; 
      [button setCenter:CGPointMake(116.0,p1)]; 
      [button setImage:[UIImage imageNamed:@"uncheck.png"] forState:UIControlStateNormal]; 

      [button setBackgroundColor:[UIColor whiteColor]]; 
      [button addTarget:self action:@selector(checkButtonTapped:) forControlEvents:UIControlEventTouchUpInside]; 
      [self.scrollView addSubview:button]; 

      p1=p1+30; 
     } 
    } 
-(void)checkButtonTapped:(id)sender 
    { 
     int tagVal = [(UIButton*)sender tag]; 

     if (tagVal==0) { 
      NSLog(@"tag = 0"); 

      [button setSelected:YES]; 
      [button setImage:[UIImage imageNamed:@"check.png" forState:UIControlStateSelected]; 

      [button setTag:100]; 

      } 

      else 
      { 

       [button setSelected:YES]; 
       [button setImage:[UIImage imageNamed:@"uncheck.png" forState:UIControlStateSelected]; 

        [button setTag:0]; 
        } 
}

來源

2012-07-02 05:55:10

感謝您的反饋kareem，itz現在工作由Safecases答案.. – neerajPK

在iphone中的動態UIButton控制和操作？

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