iOS上导航控制器上带有删除操作表的按钮

iOS： 我有一个应用程序可以打开一些内容，我在右边的导航栏上添加了一个按钮，可以从保存的捕获中删除消息内容，现在我想在删除消息之前添加符合用户要求的确认操作， 我创建的UIActionsheet如下所示：

sheet = [[UIActionSheet alloc] initWithTitle:@"Delete Message" delegate:self cancelButtonTitle:@"Cancel"   destructiveButtonTitle:@"Delete Message" otherButtonTitles:nil];
 // view sheet 
 [sheet showInView:self.view];
 NSLog(@"Button %d", buttonIndex);

-(void)popUp
{

    sheet = [[UIActionSheet alloc] initWithTitle:@"Are you Sure?"
                                        delegate:self
                               cancelButtonTitle:@"Cancel"
                          destructiveButtonTitle:@"Delete Message"
                               otherButtonTitles:nil];
    // Show the sheet
    [sheet showInView:self.view];
    //[sheet release];
    NSLog(@"Button %d", buttonIndex);
}

   - (void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex
    {
        if (buttonIndex == 0) {  //delete it

            //delete from database
            //delete from folder
            [[NSFileManager defaultManager] removeItemAtPath:fileName error:&e];
            //close
            [[self navigationController] popViewControllerAnimated: YES];
        }else if {
             NSLOG(@"USER said No");
        }

    }

现在我如何在deleteContent函数中使用这个值？ 我的删除功能是

-(void) deleteContent 
{
   if (buttonIndex=0)
     {
      [[NSFileManager defaultManager] removeItemAtPath:fileName error:&e];
     }
}

---

我的问题是，我如何在一个函数中重新安排它，而这个函数可以在一次调用中调用并完成所有这一切。

这不是解决问题的方法。从导航栏中的按钮调用函数以显示操作表。然后实现UIActionSheetDelegate方法ActionSheetDidDismissWithButtonIndex以获取实际删除的car

---

编辑：如果您需要从导致显示操作表的方法中传递要删除的项目的标识，只需向presentActionSheet方法添加一个参数并传递该项目。

有相同问题的人：

为按钮创建一个函数，可以调用如下弹出窗口：

sheet = [[UIActionSheet alloc] initWithTitle:@"Delete Message" delegate:self cancelButtonTitle:@"Cancel"   destructiveButtonTitle:@"Delete Message" otherButtonTitles:nil];
 // view sheet 
 [sheet showInView:self.view];
 NSLog(@"Button %d", buttonIndex);

-(void)popUp
{

    sheet = [[UIActionSheet alloc] initWithTitle:@"Are you Sure?"
                                        delegate:self
                               cancelButtonTitle:@"Cancel"
                          destructiveButtonTitle:@"Delete Message"
                               otherButtonTitles:nil];
    // Show the sheet
    [sheet showInView:self.view];
    //[sheet release];
    NSLog(@"Button %d", buttonIndex);
}

   - (void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex
    {
        if (buttonIndex == 0) {  //delete it

            //delete from database
            //delete from folder
            [[NSFileManager defaultManager] removeItemAtPath:fileName error:&e];
            //close
            [[self navigationController] popViewControllerAnimated: YES];
        }else if {
             NSLOG(@"USER said No");
        }

    }

然后再创建一个函数，根据如下弹出操作处理删除零件：

sheet = [[UIActionSheet alloc] initWithTitle:@"Delete Message" delegate:self cancelButtonTitle:@"Cancel"   destructiveButtonTitle:@"Delete Message" otherButtonTitles:nil];
 // view sheet 
 [sheet showInView:self.view];
 NSLog(@"Button %d", buttonIndex);

-(void)popUp
{

    sheet = [[UIActionSheet alloc] initWithTitle:@"Are you Sure?"
                                        delegate:self
                               cancelButtonTitle:@"Cancel"
                          destructiveButtonTitle:@"Delete Message"
                               otherButtonTitles:nil];
    // Show the sheet
    [sheet showInView:self.view];
    //[sheet release];
    NSLog(@"Button %d", buttonIndex);
}

   - (void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex
    {
        if (buttonIndex == 0) {  //delete it

            //delete from database
            //delete from folder
            [[NSFileManager defaultManager] removeItemAtPath:fileName error:&e];
            //close
            [[self navigationController] popViewControllerAnimated: YES];
        }else if {
             NSLOG(@"USER said No");
        }

    }

---

酷。如果我的回答有帮助，请在旁边打勾：）