实例化UISearchBar
UISearchBar *searchBar = [[UISearchBar alloc]initWithFrame:CGRectMake(0, 64, SHWidth, 40)];
//设置提示文字
searchBar.placeholder = @"搜索";
//设置边框背景图片
searchBar.backgroundImage = [UIImage imageNamed:@"searchBar_BG"];
//设置代理
searchBar.delegate = self;
//添加到视图
self.tableView.tableHeaderView = searchBar;
UISearchBar代理方法
#pragma mark - UISearchBarDelegate
#pragma mark 搜索文字改变
- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText{
}
#pragma mark 搜索开始编辑
- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar
{
//设置取消按钮样式
//首先取出cancelBtn
UIButton *cancelBtn = [searchBar valueForKey:@"cancelButton"];
//取消按钮文字
[cancelBtn setTitle:@"取消" forState:UIControlStateNormal];
//取消按钮文字颜色
[cancelBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
}
#pragma mark 编辑
- (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar
{
//展示取消按钮
searchBar.showsCancelButton = YES;
return YES;
}
#pragma mark 编辑
- (BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar
{
return YES;
}
#pragma mark 取消按钮点击
- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar
{
searchBar.text = @"";
//收起键盘
[searchBar resignFirstResponder];
//隐藏取消按钮
[searchBar setShowsCancelButton:NO animated:YES];
}
