当制作如苹果信息里面的搜索时，你可能做不到那种效果，会出现一些问题
这里列举一些代码
self.edgesForExtendedLayout = UIRectEdgeNone;// 这句代码的意思是不让它扩展布局，当你用UISearchBar 和UIsearchDisplayController的结合时可能会遇见覆盖状态栏的状况这时候你就需要在ViewDidLoad里面写上这句代码。
另外需要将UISearchBar加到UISearchDisplayController上如：sedis=[[UISearchDisplayController alloc]initWithSearchBar:_searchbar2 contentsController:self];
@interface AddFriendController (){
UISearchDisplayController *sedis;
UIView *b;
}
@property (nonatomic,strong) UIButton *serchbar;
@property (nonatomic,strong) UITableView * mytable;
@property (nonatomic,strong) NSMutableArray * datasours;
@property (nonatomic,strong) UISearchBar * searchbar2;
@end
@implementation AddFriendController
- (void)viewDidLoad {
[super viewDidLoad];
self.edgesForExtendedLayout = UIRectEdgeNone;
self.view.backgroundColor=[UIColor whiteColor];
ALLTITLENAME(@"添加好友")
// self.automaticallyAdjustsScrollViewInsets = NO;
//添加ui
[self AddUI];
//添加AddBar
[self AddBar];
}
-(void)AddUI
{
_searchbar2 =[[UISearchBar alloc]initWithFrame:CGRectMake(0, 0, screen_width, 44)];
[_searchbar2 setPlaceholder:@"使用手机号/昵称查找好友"];
_searchbar2.delegate=self;
_searchbar2.translucent = NO;// 让系统的searchBar变得不透明
sedis=[[UISearchDisplayController alloc]initWithSearchBar:_searchbar2 contentsController:self];
[self.view addSubview:_searchbar2];
_mytable=[[UITableView alloc]initWithFrame:CGRectMake(0, CGRectGetMaxY(self.searchbar2.frame), screen_width, screen_height-109)];
_mytable.delegate=self;
_mytable.dataSource=self;
_mytable.keyboardDismissMode = UIScrollViewKeyboardDismissModeOnDrag;// 拖动tableView让键盘消失
CLEAR_TABLE_LIN(_mytable)
[self.view addSubview:self.mytable];
}
