iphone - 我如何在 iphone 中以相同的方法加载不同的 View

Question

头等舱

@implementation WatchViewController

- (void)viewDidLoad
{
    [super viewDidLoad];UIButton *watch1 = [[UIButton buttonWithType:UIButtonTypeCustom] retain];
    watch1.frame = CGRectMake(5.0, 10.0, 140.0, 170.0);
    [watch1 setBackgroundImage:[UIImage imageNamed:@"Watch1.png"] forState: UIControlStateNormal];
    [watch1 addTarget:self action:@selector(WatchesPreviewButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
    [scr addSubview:watch1];

    UIButton *watch2 = [[UIButton buttonWithType:UIButtonTypeCustom] retain];
    watch2.frame = CGRectMake(170.0, 10.0, 140.0, 170.0);
    [watch2 setBackgroundImage:[UIImage imageNamed:@"watch2.png"] forState: UIControlStateNormal];
    [watch2 addTarget:self action:@selector(WatchesPreviewButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
    [scr addSubview:watch2];
}

方法:

- (IBAction)WatchesPreviewButtonPressed:(id)sender {

    WatchPreviewViewController *watchesPreviewView = [[WatchPreviewViewController alloc] initWithNibName:@"WatchPreviewViewController"  bundle:nil];
    [self.navigationController pushViewController:watchesPreviewView animated:YES];
    [watchesPreviewView release];
}

第二类:

@implementation WatchPreviewViewController
- (void)viewDidLoad
{
    [super viewDidLoad];
UIScrollView *scr=[[UIScrollView alloc] initWithFrame:CGRectMake(0, 46, 320, 384)];
[self.view addSubview:scr];
NSArray* ds =[NSArray arrayWithObjects:
                      [NSArray arrayWithObjects:[self getPath:@"1a"],[self getPath:@"1b"],[self getPath:@"1c"],[self getPath:@"1d"],nil],
                      [NSArray arrayWithObjects:[self getPath:@"2a"],[self getPath:@"2b"],[self getPath:@"2c"],[self getPath:@"2d"],nil],nil];


 SSView* sv =[SSView createWithFrame:CGRectMake(0, 0, 320, 380) ds:ds];

    if(??????????????????)   //what condition is required for watch1?
{
        sv.curIndexPath =[NSIndexPath indexPathForRow:0 inSection:0];
        [scr addSubview:sv];
}
    else if(?????????????????)          //what condition is required watch2?
{
        sv.curIndexPath =[NSIndexPath indexPathForRow:1 inSection:0];
        [scr addSubview:sv];
}

在第一个类中，我有两张 watch 图片，我想在点击 watch 时加载下一页 View 。为此，我使用方法 WatchesPreviewButtonPressed。在第二堂课中，我正在创建用于在单击按钮时加载的页面。在二等舱，我在 View 内有一个 ScrollView 。我有图像数组。我想在下次观看点击事件时显示不同的图像。任何人都请我，我是 iPhone 开发的新手。

Answer 1

在 (void)viewDidLoad 中创建按钮时，在每个按钮上设置标签属性:

watch1.tag = 1    //new code
[scr addSubview:watch1];  //existing code


watch2.tag = 2  //new code
[scr addSubview:watch2];  //existing code

在您的 WatchPreviewViewController.h 中，在 @interface 部分创建一个属性:

@property (assign) int watchType;

然后在 - (IBAction)WatchesPreviewButtonPressed:(id)sender 中根据按下的按钮设置属性:

watchesPreviewView.watchType = sender.tag

(您可能必须强制转换发件人:(UIView*)sender.tag，我不是在现场测试)

现在你的 if(????????????????????) 测试是 if (self.watchType == 1)