首先，UISearchBar Placeholder居中显示已经开源到gitee,目前已经适配到了iOS14。
去除UISearchBar背景颜色显示错误的问题代码如下：
HsusueSearchBar *searchBar = [[HsusueSearchBar alloc] initWithFrame:CGRectZero];
self.searchBar = searchBar;
[self addSubview:searchBar];
searchBar.placeholder = @"搜索用户名";
searchBar.delegate = self;
// searchBar.layer.borderWidth = 0.5;
// searchBar.layer.borderColor = [IACColor(230, 230, 230) CGColor];
searchBar.layer.masksToBounds = YES;
searchBar.layer.cornerRadius = 3;
//去除灰色背景
if ([[[UIDevice currentDevice] systemVersion] floatValue] < 13.0) {
for (UIView *view in self.searchBar.subviews) {
// for later iOS7.0(include)
if ([view isKindOfClass:NSClassFromString(@"UIView")] && view.subviews.count > 0) {
[[view.subviews objectAtIndex:0] removeFromSuperview];
break;
}
}
}
searchBar.backgroundColor = IACColor(240, 240, 240);
searchBar.tintColor = [UIColor blackColor];//IACColor(240, 240, 240);
[searchBar setBackgroundImage:[UIImage new]];
