Question

我通过此代码将UIButton添加到UIPickerview

- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view {


UIView *returnedView=(id)view;
if (!returnedView) {


returnedView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, [pickerView rowSizeForComponent:component].width, 44)];
}
returnedView.userInteractionEnabled=YES;


 UILabel   *retval=[[[UILabel alloc] initWithFrame:CGRectMake(0.0f, 0.0f,50, 44)] autorelease];
      retval.text = [[_figureArrayPicker objectAtIndex:row] valueForKey:@"FIGPic"];

      UIButton *button=[self  pieChartOfFigureWithCmm:row];
      [button setFrame:CGRectMake(50, 0, 50, 44)];
      [button addTarget:self action:@selector(defectPressed:) 
        forControlEvents:UIControlEventTouchUpInside];
          [returnedView addSubview:button];

  } 

[returnedView addSubview:retval];


return returnedView;

}

但是当我点击一个uibutton时，这没有回应。我的错在哪里？此

Answer 1

只是尝试显式更改userInteractionEnabled = YES按钮，这可能是一个例子。

Answer 2

为您的按钮分配内存。

UIPickerView中的UIButton不响应click事件

2 个答案: