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的字符串屬性值。我有一個UITableView,它包含名爲「MyCustomCell」的原型單元。該「MyCustomCell」包含一個按鈕,名爲「cellKey」一個的NSString屬性:在ios應用程序中獲取自定義UITableViewCell
@interface MyCustomCell : UITableViewCell
@property (weak, nonatomic) IBOutlet UIButton *myButton;
@property (strong, nonatomic) NSString *cellKey;
@end
中的cellForRowAtIndexPath委託方法
,我分配cellKey並添加自來水監聽器按鈕。
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSUInteger row = [indexPath row];
MyItem *item = [self.data objectAtIndex:row];
NSString *identifier = @"MyCustomCell";
MyCustomCell *cell = (MyCustomCell *)[tableView dequeueReusableCellWithIdentifier:identifier];
//Give the cell the key
cell.cellKey = item.key;
//add a tap listener
[cell.myButton addTarget:self action:@selector(buttonTaped:) forControlEvents:UIControlEventTouchUpInside];
return cell;
}
在buttonTaped處理我想對應的按鈕,電池的關鍵點:
- (IBAction)buttonTaped:(id)sender
{
//Get the button
UIButton *senderButton = (UIButton *)sender;
//get the super view which is the cell
MyCustomCell *cell = (MyCustomCell *)[senderButton superview];
//get the key
NSString *key = cell.cellKey;
}
然而,當我運行應用程序,並單擊該按鈕,應用程序崩潰時,我打電話cell.cellKey出現此錯誤:
-[UITableViewCellContentView cellKey]: unrecognized selector sent to instance 0x13576240
它不認識到superView是MyCustomCell類型。那麼如何獲得包含點擊按鈕的單元格的「cellKey」屬性?
感謝
謝謝,這是問題 – Youssef