UISearchBar的简单实用

在NavigtionBar上创建搜索框UISearchBar

    self.searchEpisdose = [[UISearchBaralloc]initWithFrame:CGRectMake(60,25,200,30)];

    self.searchEpisdose.placeholder =@"请输入要搜索的关键字";

    self.searchEpisdose.barTintColor = [UIColorgrayColor];

    self.searchEpisdose.layer.cornerRadius =15;//设置圆角

    self.searchEpisdose.delegate =self;//设置代理

    UIView * titleView = [[UIViewalloc]initWithFrame:CGRectMake(50,25,220, 30)];//创建titleView

    [titleView addSubview:self.searchEpisdose];

    self.navigationItem.titleView =self.searchEpisdose;//将创建搜索框sreachBar指定给titleView