UISearchBars设置圆框和背景色

UIView *naviView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, ScreenWidth, TopHeight)];

naviView.backgroundColor = [UIColor whiteColor];

[self.view addSubview:naviView];

UISearchBar *searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(20, StateHeight+6, ScreenWidth-90, 32)];

[searchBar setBackgroundImage:[UIImage new]];

searchBar.backgroundColor = HexColor(@"#F5F7F8", 1);

searchBar.layer.cornerRadius = 16;

searchBar.layer.masksToBounds = YES;

searchBar.placeholder = @"搜索关键字";

searchBar.delegate = self;

[naviView addSubview:searchBar];

UITextField *searchTF = [searchBar valueForKey:@"_searchField"];

searchTF.tintColor = Color_Main;

searchTF.textColor = Color_Title;

searchTF.backgroundColor = [UIColor clearColor];

searchTF.font = Font(16);

UIButton *cancelBtn = [[UIButton alloc] initWithFrame:CGRectMake(ScreenWidth-60, StateHeight, 48, 44)];

cancelBtn.titleLabel.font = Font(16);

[cancelBtn setTitle:@"取消" forState:UIControlStateNormal];

[cancelBtn setTitleColor:Color_Main forState:UIControlStateNormal];

[cancelBtn setTitleColor:[UIColor lightGrayColor] forState:UIControlStateHighlighted];

[cancelBtn addTarget:self action:@selector(backAction:) forControlEvents:UIControlEventTouchUpInside];

[naviView addSubview:cancelBtn];