问题描述
我正在尝试普遍更改表格视图的背景颜色。它是UINavigationController和TabBarController应用程序的组合。我已经尝试将以下内容放入AppDelegate applicationDidFinishLaunchingWithOptions
I'm trying to universally change the background color for my table views. It is a combination UINavigationController and TabBarController app. I've tried putting the following in AppDelegate applicationDidFinishLaunchingWithOptions
[[[UITableView appearance] backgroundView] setBackgroundColor:[UIColor redColor]];
[[UITableView appearance] setBackgroundColor:[UIColor redColor]];
[[UITableView appearanceWhenContainedIn:[UINavigationController class], nil] setBackgroundColor:[UIColor greenColor]];
[[UITableView appearanceWhenContainedIn:[UITabBarController class], nil] setBackgroundColor:[UIColor greenColor]];
无变化。
如果我尝试要改变AppDelegate中的一般UIView，这可行：
If I try to change general UIView in AppDelegate, this works:
[[UIView appearance] setBackgroundColor:[UIColor redColor]];
如果我在viewDidLoad中单独攻击每个tableview，这可行：
If I attack each tableview individually in viewDidLoad, this works:
self.tableView.backgroundColor = [UIColor redColor];
我意识到这只是一行代码，但是有很多观点，这只是另一回事不要跟丢。似乎iOS 5 UIAppearance就是为此而制作的。我不清楚它为什么不起作用。谢谢。
I realize it's just one line of code, but with a lot of views, it's just another thing to keep track of. It seems like the iOS 5 UIAppearance was made for this. I'm not clear why it isn't working. Thanks.
推荐答案
UIAppearance 技术上不支持 setBackgroundColor：，这就是为什么你没有看到所有表视图颜色的变化。您最好的选择是子类 UITableView 。
UIAppearance doesn't technically support setBackgroundColor:, which is why you aren't seeing a change in all table view colors. Your best option will be to subclass UITableView.
如果您需要有关如何操作的信息，请参阅
If you need information on how to do that, see this answer.
对于未来的观众，是一个答案的链接，其中包含 UIAppearance 支持的所有方法的列表。
For future viewers, here is a link to an answer containing a list of all methods supported by UIAppearance.
这篇关于使用UIAppearance通用设置UITableView BackgroundColor的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！