如何将图像背景设置为 UITabBarController iOS 5

Question

您好，有人可以帮我编写这段代码吗？我有带有自定义标签栏图像的应用程序，现在在 iOS5 中图像消失了。我知道他们已经对标签栏的实现进行了更改，我不知道如何解决这个问题。

- (void)applicationDidFinishLaunching:(UIApplication *)application {
[window makeKeyAndVisible];
CGRect frame = CGRectMake(0, 0, 400, 148);
UIView *viewa = [[UIView alloc] initWithFrame:frame];
UIImage *tabBarBackgroundImage = [UIImage imageNamed:@"fasha-down.png"];
UIColor *color = [[UIColor alloc] initWithPatternImage:tabBarBackgroundImage];


[viewa setBackgroundColor:color];
[[tabBarController tabBar] insertSubview:viewa atIndex:0];
[color release];
[viewa release];
[window addSubview:tabBarController.view]; 
}

感谢您的帮助

Answer 1

// Change the tab bar background
UIImage* tabBarBackground = [UIImage imageNamed:@"tabbar.png"];
[[UITabBar appearance] setBackgroundImage:tabBarBackground];

Answer 2

如下更改来源，您可以解决此问题。

旧来源：

[[tabBarController tabBar] insertSubview:viewa atIndex:0];

新来源：

//1.Check version of iOS
if(iOSVersion <= 4.3){
    [[tabBarController tabBar] insertSubview:viewa atIndex:0];
}else{
//iOS5
    [[tabBarController tabBar] insertSubview:viewa atIndex:1];
}

Answer 3

使用此代码检测 iOS 版本

if ([[[UIDevice currentDevice] systemVersion] floatValue] < 5)  {
    [[tabBarController tabBar] insertSubview:viewa atIndex:0];
}else{
    [[tabBarController tabBar] insertSubview:viewa atIndex:1];
}