更改UISearchBar的字体大小 [英] Change the font size of UISearchBar

问题描述

如何更改 UISearchBar 的字体大小？

修改

答案

Answer

for(int i =0; i<[searchbar.subviews count]; i++) {
        if([[searchbar.subviews objectAtIndex:i] isKindOfClass:[UITextField class]])
            [(UITextField*)[searchbar.subviews objectAtIndex:i] setFont:[UIFont fontWithName:@"Helvetica" size:12]];
    }

谢谢 -
Pankaj

Thanks
Pankaj

推荐答案

UISearchBar里面有一个UITextField，但没有属性可以访问它。因此，没有办法以标准方式进行。

The UISearchBar has a UITextField inside, but there's no property to access it. So, there is no way for doing it in a standard way.

但是有一种非标准的解决方法。
UISearchBar继承自UIView，你可以使用[searchBar subviews]访问它的子视图。
如果您在控制台中打印它的子视图，您将看到它有这些视图。

But there is a non-stardard way to workaround it. UISearchBar inherits from UIView, you can access it's subviews using [searchBar subviews]. If you print in the console it's subviews you will see that it have these views.

UISearchBarBackground，UISearchBarTextField。

UISearchBarBackground, UISearchBarTextField.

因此，要更改字体大小，您只需要这样做

So, to change the font size you will only need to do that

    UITextField *textField = [[searchBar subviews] objectAtIndex:1];
[textField setFont:[UIFont fontWithName:@"Helvetica" size:40]];

但是，如果UISearchBar将来发生变化且文本字段不再位于第1位，你的程序会崩溃，所以最好通过子视图检查UITextField的位置，然后设置字体大小。

But, if the UISearchBar changes in the future and the textfield isn't in the position 1 anymore, your program will crash, so it's better to check through the subviews the position of the UITextField and then set the font size.

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