关于UISearchBar背景完全透明设置的代码

来源：互联网发布：php define const 区别编辑：程序博客网时间：2024/05/18 22:42

//设置搜索框

searchBar=[[UISearchBar alloc] initWithFrame:CGRectMake(5, 103, 280, 36)];

[searchBar setTintColor:[UIColor clearColor]];

searchBar.delegate=self;

searchBar.autocorrectionType=UITextAutocorrectionTypeNo;

searchBar.autocapitalizationType=UITextAutocapitalizationTypeNone;

searchBar.keyboardType=UIKeyboardTypeDefault;

searchBar.placeholder=[NSString stringWithCString:" 找产品，企业" encoding: NSUTF8StringEncoding];

[[searchBar.subviews objectAtIndex:0]removeFromSuperview];//删除原来的背景

UIImageView *bgImage = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"搜索框.png"]];

[bgImage setFrame:CGRectMake(0, 103, 320, 36)];

[self.scrollView addSubview:bgImage];//在searchBar位置正下方添加背景图

[bgImage release];

UIButton *searchBtn=[[UIButton alloc] initWithFrame:CGRectMake(289, 112, 16, 17)];

[ searchBtn setBackgroundImage:[UIImage imageNamed:@"搜索.png"] forState:UIControlStateNormal];

[searchBtn addTarget:self action:@selector(btnSearch:) forControlEvents:UIControlEventTouchUpInside];

[self.scrollView addSubview:searchBtn];

[searchBtn release];

//=======

UITextField* searchField = nil;

for (UIView* subview in searchBar.subviews) {

// 删除searchBar输入框的背景

if ([subview isKindOfClass:[UITextField class]]) {

searchField = (UITextField*)subview;

searchField.leftView=nil;

[searchField setBackground:nil];

// [searchField setBackgroundColor:[UIColor clearColor]];

[searchField setBorderStyle:UITextBorderStyleNone];

break;

}

//========

[self.scrollView addSubview:searchBar];