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#pragma mark 搜索框的代理方法，搜索输入框获得焦点（聚焦）
- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar
{
[searchBar setShowsCancelButton:YES animated:YES];
for(id cc in [searchBar.subviews[0] subviews])
{
if([cc isKindOfClass:[UIButton class]])
{
UIButton *cancelButton = (UIButton *)cc;
[cancelButton setTitle:@"取消" forState:UIControlStateNormal];
[cancelButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
// 修改文字颜色 [cancelButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; [cancelButton setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted]; // 修改按钮背景 [cancelButton setBackgroundImage:[UIImage resizedImage:@"login_btn_login.png"] forState:UIControlStateNormal]; [cancelButton setBackgroundImage:nil forState:UIControlStateHighlighted];}
}
}
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原文地址：http://www.cnblogs.com/zj901203/p/5344778.html
