iPhone-uisearchbar上的搜索按钮

你可以改变 keyboardType uiSearchBar对象的属性。但是,没有办法改变 returnKeyType 直接。您可以过滤并手动更改它。检查uisearchbar的文档,查看是否可以找到 返回键类型 因为这就是你要找的。

我是这样完成的:

// --   Basic UISearchBar setup.
self.theSearchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0,0,320,38)];
[self.theSearchBar setDelegate:self];
[self.view addSubview:self.theSearchBar];

// --   Customize the returnKeyType of the search bar's nested UITextField.
UITextField *searchBarTextField = [[self.theSearchBar subviews] objectAtIndex:1];
searchBarTextField.returnKeyType = UIReturnKeyGo;

希望有帮助。这种方法(即通过索引获取子视图)在将来可能会被打破,但目前还可以正常工作。

for (UIView *view in _searchBar.subviews){
            if ([view isKindOfClass:[UITextField class] ]) {
                UITextField *searchTf = (UITextField *)view;
                searchTf.returnKeyType = UIReturnKeyDone;
            }
}

这适用于iOS 6

UITextField *searchBarTextField = [[searchBarObj subviews] objectAtIndex:1];
    searchBarTextField.returnKeyType = UIReturnKeyDefault;

    [searchBarTextField setEnablesReturnKeyAutomatically:NO];

这适用于iOS 7

for (UIView *subview in self.searchBar.subviews)
{
    for (UIView *subSubview in subview.subviews)
    {
        if ([subSubview conformsToProtocol:@protocol(UITextInputTraits)])
        {
            UITextField *textField = (UITextField *)subSubview;
            [textField setKeyboardAppearance: UIKeyboardAppearanceAlert];
            textField.returnKeyType = UIReturnKeyDone;
            break;
        }
    }
}

不要依赖它作为第二个子视图,请使用iskindofclass:方法进行检查。这将是iOS更新的更多证明。

for (UIView *subview in self.theSearchBar.subviews) {
    if ([subview isKindOfClass:[UITextField class]]) {
        [(UITextField *)subview setReturnKeyType:UIReturnKeyGo];
        break;
    }
}