Question

我的应用中有很多标签。标签工作没有问题，但我收到一些警告信息（在上面的标题中），我想摆脱它。我的代码如下：

-(void)pressItem1:(id)sender {
    [self presentModalViewController:settingsViewController animated:YES];
}

-(void)pressItem2:(id)sender {
    [self presentModalViewController:infoViewController animated:YES];
}

-(void)pressItem3:(id)sender {
    [self presentModalViewController:aboutViewController animated:YES];
}

-(void)viewDidLoad {
    self.view.backgroundColor = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"background.png"]];

    CGRect frame = CGRectMake(0, 0, 480, 49);
    UIView *v = [[UIView alloc] initWithFrame:frame];
    UIImage *i = [UIImage imageNamed:@"smallMenuBackground.png"];
    UIColor *c = [[UIColor alloc] initWithPatternImage:i];
    v.backgroundColor = c;
    [c release];
    [mainTabBar insertSubview:v atIndex:0]; 
    [v release];    

    [settingsBarItem setAction:@selector(pressItem1:)];
    [infoBarItem setAction:@selector(pressItem2:)];
    [aboutBarItem setAction:@selector(pressItem3:)];

    //initialSyncSwitch = NO;
    [super viewDidLoad];
}

选项卡正在运行，但可能有更好的方法，因此我不会收到这些警告。

此致斯蒂芬

Answer 1

您不直接在UITabBarItem上设置操作。相反，您应该在创建它的UITabBarDelegate中实施UIViewController。具体而言，代表应实施：

- (void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item

在此处，您可以根据传递的pressItem1来调用pressItem2，item等。

'UITabBarItem'可能无法响应'SetAction'

1 个答案: