自定义searchBar相关属性.docx

1. 设置背景色我以白色的背景色为例，下面看看代码：//1. 设置背景颜色 //设置背景图是为了去掉上下黑线 self.customSearchBar.backgroundImage = [[UIImage alloc] init]; // 设置SearchBar的颜色主题为白色 self.customSearchBar.barTintColor = [UIColor whiteColor];图3：设置SearchBar背景色为白色2. 设置边框颜色和圆角//2. 设置圆角和边框颜色 UITextField *searchField = [self.customSearchBar valueForKey:@searchField]; if (searchField) { [searchField setBackgroundColor:[UIColor whiteColor]];searchField.layer.cornerRadius = 14.0f; searchField.layer.borderColor = [UIColor colorWithRed:247/255.0 green:75/255.0 blue:31/255.0 alpha:1].CGColor;searchField.layer.borderWidth = 1; searchField.layer.masksToBounds = YES; }这段代码有个特别的地方就是通过KVC获得到UISearchBar的私有变量searchField（类型为UITextField），设置SearchBar的边框颜色和圆角实际上也就变成了设置searchField的边框颜色和圆角，你可以试试直接设置SearchBar.layer.borderColor和cornerRadius，会发现这样做是有问题的。3. 设置按钮（取消按钮）的文字和文字颜色//3. 设置按钮文字和颜色 [self.customSearchBar fm_setCancelButtonTitle:@取消]; self.customSearchBar.tintColor = [UIColor colorWithRed:86/255.0 green:179/255.0 blue:11/255.0 alpha:1]; //修正光标颜色 [searchField setTintColor:[UIColor blackColor]];//其中fm_setCancelButtonTitle是我写的UISearchBar一个分类的方法- (void)fm_setCancelButtonTitle:(NSString *)title { if (IS_IOS9) { [[UIBarButtonItem appearanceWhenContainedInInstancesOfClasses:@[[UISearchBar class]]] setTitle:title]; }else { [[UIBarButtonItem appearanceWhenContainedIn:[UISearchBar class], nil] setTitle:title]; }}需要特别注意的是设置searchBar的tintColor会使输入框的光标颜色改变，可以通过设置searchField的tintColor来修正。4. 设置输入框的文字颜色和字体//4. 设置输入框文字颜色和字体 [self.customSearchBar fm_setTextColor:[UIColor blackColor]]; [self.customSearchBar fm_setTextFont:[UIFont systemFontOfSize:14]];//下面两个方法是UISearchBar分类代码- (void)fm_setTextColor:(UIColor *)textColor { if (IS_IOS9) { [UITextField appearanceWhenContainedInInstancesOfClasses:@[[UISearchBar class]]].textColor = textColor; }else { [[UITextField appearanceWhenContainedIn:[UISearchBar class], nil] setTextColor:textColor]; }}- (void)fm_setCancelButtonTitle:(NSString *)title { if (IS_IOS9) { [[UIBarButtonItem appearanceWhenContainedIn