UISearchBar常用属性

前言

记录下常用的属性，方便查阅

正文

• 设置取消按钮文本

if (IOS9) {
        [[UIBarButtonItem appearanceWhenContainedInInstancesOfClasses:@[[BESearchUserByNameVC class]]] setTitle:BluedLocalizedStringWithKey(@"gjp_cancel")];
} else {
        [[UIBarButtonItem appearanceWhenContainedIn: [BESearchUserByNameVC class], nil] setTitle:BluedLocalizedStringWithKey(@"gjp_cancel")];
}

• 设置取消按钮颜色

searchBar.tintColor = [UIColor gjw_colorWithHex:0x616aff];

• 设置搜索框的背景，不是整个searchBar的背景

 [searchBar setSearchFieldBackgroundImage:[UIImage imageNamed:@"common_searchBar_bg"] forState:UIControlStateNormal];

• 替换系统的搜索图标

[searchBar setImage:[UIImage imageNamed:@"common_searchBar_icon"] forSearchBarIcon:UISearchBarIconSearch state:UIControlStateNormal];

• 设置整个searchBar的背景

searchBar.backgroundImage = [UIImage gjw_imageWithColor:[UIColor gjw_colorWithHex:0xf4f4f4] size:self.searchController.searchBar.bounds.size];

• 获取搜索框的placeHoder，修改字体，颜色等

UITextField *searchField = [searchBar valueForKey:@"_searchField"];
[searchField setValue:[UIColor gjw_colorWithHex:0x848bff] forKeyPath:@"_placeholderLabel.textColor"];
[searchField setValue:TEXT_FONT(14) forKeyPath:@"_placeholderLabel.font"];

• 显式设置尺寸。在iOS8，iPhone4上使用UISearchController的默认searchBar作为UITableView的tableHeaderView时，无法显示，估计是个系统bug

searchBar.frame = CGRectMake(0, 0, SCREEN_WIDTH, 44);

效果图

搜索状态

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