如何選擇特定的複選框在插入在表格單元接口生成器中的複選框iphone

Question

我正在做一個小概念複選框。其實，我把複選框圖像放在表格單元格中，但我無法理解，如何選擇特定的複選框並在表格視圖中獲取單元格的值，任何主體都可以通過解決這個問題來幫助我。提供編碼表視圖的屏幕截圖，

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    NSLog(@"in table view cell for row at index"); 

    RequestSongSelectingCell *cell = (RequestSongSelectingCell *) [tableView dequeueReusableCellWithIdentifier:@"requestsingcell"]; 
    if (cell==nil) 
    { 

     [[NSBundle mainBundle] loadNibNamed:@"RequestSongSelectingCell" owner:self options:nil]; 
     NSLog(@"start"); 
     cell=requestingCell; 
     NSLog(@"end"); 
    } 

    NSDictionary *dict=[self.array objectAtIndex:indexPath.row]; 

    NSString *artistname=[dict objectForKey:@"artist"]; 
    NSLog(@"artistname is %@",artistname); 

    cell.artistName.text=artistname; 

    NSString *songtitle=[dict objectForKey:@"title"]; 
    NSLog(@"songtitle is %@",songtitle); 
    cell.artistTitle.text=songtitle; 

    return cell; 
} 

-(IBAction)checkButtonPressed:(id)sender 
{ 
    NSLog(@"check box button pressed"); 

    requestingCell.checkBoxButton.imageView.image=[UIImage imageNamed:@"checkbox-checked.png"]; 

} 

感謝和問候，

吉里什

Answer 1

你添加的RequestSongSelectingCell.xib一個按鈕文件？

當您將其添加到tableView時，您可以設置它的標籤屬性。然後你可以在buttonPressed方法中檢索標籤。

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    NSLog(@"in table view cell for row at index"); 

    RequestSongSelectingCell *cell = (RequestSongSelectingCell *) [tableView dequeueReusableCellWithIdentifier:@"requestsingcell"]; 
     if (cell==nil) 
    { 

     [[NSBundle mainBundle] loadNibNamed:@"RequestSongSelectingCell" owner:self options:nil]; 
       NSLog(@"start"); 
     cell=requestingCell; 
     NSLog(@"end"); 
    } 
    cell.btn.tag = indexPath.row; 
    // your customization 
    return cell; 
} 

-(IBAction)checkButtonPressed:(id)sender 
{ 
    UIButton * btn = (UIButton*)sender; 
    int selected_index = btn.tag; // This is your index of selected cell 

    NSLog(@"check box button pressed"); 

    requestingCell.checkBoxButton.imageView.image=[UIImage imageNamed:@"checkbox-checked.png"]; 

} 

編輯：爲了處理選擇

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    NSLog(@"in table view cell for row at index"); 

    RequestSongSelectingCell *cell = (RequestSongSelectingCell *) [tableView dequeueReusableCellWithIdentifier:@"requestsingcell"]; 
     if (cell==nil) 
    { 

     [[NSBundle mainBundle] loadNibNamed:@"RequestSongSelectingCell" owner:self options:nil]; 
       NSLog(@"start"); 
     cell=requestingCell; 
     NSLog(@"end"); 
    } 
//check if cell is already selected or not 
     // if not selected, tag will be positive 
     cell.btn.tag = indexPath.row; 
     // if selected, tag will be negative 
     cell.btn.tag = -indexPath.row; 
     // your customization 
     return cell; 
    } 

-(IBAction)checkButtonPressed:(id)sender 
{ 


    UIButton * btn = (UIButton*)sender; 
    int selected_index = btn.tag; // This is your index of selected cell 


    //btn is the same btn image of which you need to change/toggle 
    if(btn.tag > 0)  //its not selected 
    { 
      //set btn image as selected 
      btn.tag = -(btn.tag); 
      [btn setImage: forState:UIControlStateNormal]; 
    } 
    else if(btn.tag < 0)  //its selected 
    { 
      //set btn image as unselected 
      btn.tag = -(btn.tag); 
      [btn setImage: forState:UIControlStateNormal]; 
    } 
    NSLog(@"check box button pressed"); 

//  requestingCell.checkBoxButton.imageView.image=[UIImage imageNamed:@"checkbox-checked.png"]; 

    }