Question

我已在UITableViewCell中以编程方式创建了一个按钮，我希望它在单击时打开一个新的表视图或弹出窗口。请给我一些教程或提示。以下是我的代码：

UIButton *button =[UIButton buttonWithType:UIButtonTypeCustom];
button.frame=CGRectMake(0,0,360,25);
[button addTarget:self action:@selector(dropDownClick) forControlEvents:UIControlEventTouchUpInside];

-(IBAction)dropDownClick
{
    //Here I know there should be some code but I am not getting what it should be since I am new to iPad/iPhone development
}

Answer 1

如果您只想在点按按钮时显示弹出窗口，可以使用UIAlertVIew

- (IBAction)dropDownClick {
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Title of popup" 
                                                    message:@"Did this popup show?" 
                                                   delegate:self 
                                          cancelButtonTitle:@"Yes" 
                                          otherButtonTitles:nil];
    [alert addButtonWithTitle:@"No"];
    [alert show];
}

Answer 2

这里有一个样本

//DISEGNO DELLE CELLE
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier;

CellIdentifier = @"CellStorico";


UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
    cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];

    CGRect tRect1 = CGRectMake(0.0f, 3.0f, 768.0f, 40.0f);
    id title1 = [[UIButton alloc] initWithFrame:tRect3];
    [title1 addTarget:self action:@selector(ClickCheck:) forControlEvents:UIControlEventTouchUpInside];
    [title1 setTag:3];

    [cell addSubview:title1];
    [title1 release];

}




if ([[[Storico objectAtIndex:[indexPath row]] objectForKey:@"Selezionato"] isEqualToString:@"0"]) {
    [(UIButton *) [cell viewWithTag:3] setImage:[UIImage imageNamed:@"NoCheck.png"] forState:UIControlStateNormal];
    [(UIButton *) [cell viewWithTag:3] setImage:[UIImage imageNamed:@"NoCheck.png"] forState:UIControlStateHighlighted];
    [(UIButton *) [cell viewWithTag:3] setImage:[UIImage imageNamed:@"NoCheck.png"] forState:UIControlStateSelected];        
} else {
    [(UIButton *) [cell viewWithTag:3] setImage:[UIImage imageNamed:@"Check.png"] forState:UIControlStateNormal];
    [(UIButton *) [cell viewWithTag:3] setImage:[UIImage imageNamed:@"Check.png"] forState:UIControlStateHighlighted];
    [(UIButton *) [cell viewWithTag:3] setImage:[UIImage imageNamed:@"Check.png"] forState:UIControlStateSelected];
}   



return cell;
}

点击管理

-(void)ClickCheck:(id)sender{

//Ex. Load a New View
FrmScadenzeGenerali *SchermataScadenzeGenerali=[[FrmScadenzeGenerali alloc] initWithNibName:@"FrmScadenzeGenerali" bundle:nil];
[[self navigationController] pushViewController:SchermataScadenzeGenerali animated:YES];
[SchermataScadenzeGenerali release];


//Ex. PopUp a View
[self.view insertSubview:[TabTestata view] atIndex:0];

//Show a Message
UIAlertView *Alert = [[UIAlertView alloc] initWithTitle:@"Attenzione!" message:@"Error Text Message To Show!" delegate:self cancelButtonTitle:@"Ok" otherButtonTitles:nil];
    [Alert show];
    [Alert release];
}

Answer 3

我假设您在UINavigationController上使用了UITableView。

如果是这样，你可以试试这个让它打开一个新的表视图：

创建一个新类，它是UITableViewController的子类。确保选中名为“With XIB for user interface”的复选框。给它起一个名字，即“MyTableViewController”。
打开您的dropDownClick方法所在班级的实施文件（以.m结尾的文件），并使用#import "MyTableViewController.h"导入新班级。在类的顶部（.m文件）执行此操作。
将您的dropDownClick方法修改为以下行：

-(IBAction)dropDownClick
{
    MyTableViewController *vc = [[MyTableViewController alloc] initWithNibName:@"MyTableViewController"]; // Loads a .xib file called "MyTableViewController.xib"
    [self.navigationController pushViewController:vc animated:YES]; // This is where the swapping happens.
    [vc release]; // Remember to do this if your app does not use ARC.
}

您也可以在不使用.xib的情况下执行此操作，但之后会有所不同。

以编程方式创建按钮单击以打开tableview或弹出窗口

3 个答案: