iOS更改UISearchBar里面的UITextField的frame以及去除UISearchBar的背景

来源：互联网发布：流量推广软件编辑：程序博客网时间：2024/05/21 10:59

1、自定义UISearchBar的子类MySearchBar,重写layoutSubviews方法。

代码：

- (void)layoutSubviews {[super layoutSubviews];for (UIView *view in self.subviews){if ([view isKindOfClass:NSClassFromString(@"UIView")] && view.subviews.count > 0) {for (UIView *subview in view.subviews) {if ([subview isKindOfClass:NSClassFromString(@"UITextField")]) {UITextField *textField = (UITextField *)subview;CGRect frame = textField.frame;frame.size.height = 38;textField.frame = frame;textField.font = [UIFont fontWithName:@"Helvetica" size:17.0f];break;}}break;}}}

2、如果是由UISearchBar是在一个xib文件中定义的，则在awakeFromNib方法里做如下操作：

for (UIView *view in self.destinationSearchBar.subviews){if ([view isKindOfClass:NSClassFromString(@"UIView")] && view.subviews.count > 0) {[[view.subviews objectAtIndex:0] removeFromSuperview];CGRect frame = view.frame;CGFloat height = frame.size.height + 8;frame.size.height = height;view.frame = frame;view.clipsToBounds = NO;break;}}

如果是用alloc/init方法生成的，则在其对应的UViewController的viewDidLoad方法里添加代码

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