iOS自定义UISearchBar，简单、方便、好用

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可恶的UI非要搞一个和系统的UISearchBar的不一样的效果，但是系统自带的用实现不了效果，就自能自定义了。

把一个UISearchBar放到UINavigationBar上。并且还要有搜索的结果在整个页面上。。。

先看看效果图

HZSearchBar

自定义searcher，完全模仿系统样式

选择遵循协议

CustomsearchResultsUpdater

及时筛选代理同系统的searchResultsUpdater代理一样的用法。

CustomSearchBarDataSouce

设置数据源

// 设置显示列的内容
-(NSInteger)searchBarNumberOfRowInSection;\
// 设置显示没行的内容
-(NSString *)CustomSearchBar:(CustomSearchBar *)searchBar titleForRowAtIndexPath:(NSIndexPath *)indexPath;

设置每行显示的图片

// 每行图片
-(NSString *)CustomSearchBar:(CustomSearchBar *)searchBar imageNameForRowAtIndexPath:(NSIndexPath *)indexPath;

CustomSearchBarDelegate

设置点击效果和监听取消按钮动作

// 点击每一行的效果
- (void)CustomSearchBar:(CustomSearchBar *)searchBar didSelectRowAtIndexPath:(NSIndexPath *)indexPath;

-(void)CustomSearchBar:(CustomSearchBar *)searchBar cancleButton:(UIButton *)sender;

添加HZSearchBar（以添加到导航栏为例）

self.customSearchBar = [CustomSearchBar show:CGPointMake(0, 0) andHeight:SEMHEIGHT];
self.customSearchBar.searchResultsUpdater = self;
self.customSearchBar.DataSource = self;
self.customSearchBar.delegate = self;
[self.navigationController.view insertSubview:self.customSearchBar aboveSubview:self.navigationController.navigationBar];

代理的使用

/**第一步根据输入的字符检索 必须实现*/
-(void)CustomSearch:(CustomSearchBar *)searchBar inputText:(NSString *)inputText {
[self.resultFileterArry removeAllObjects];
NSPredicate * predicate = [NSPredicate predicateWithFormat:@"SELF CONTAINS %@",inputText];
NSArray * arry = [self.myData filteredArrayUsingPredicate:predicate];
for (NSString * taxChat in arry) {
[self.resultFileterArry addObject:taxChat];
}
}
// 设置显示列的内容
-(NSInteger)searchBarNumberOfRowInSection {
return self.resultFileterArry.count;
}
// 设置显示没行的内容
-(NSString *)CustomSearchBar:(CustomSearchBar *)menu titleForRowAtIndexPath:(NSIndexPath *)indexPath {
return self.resultFileterArry[indexPath.row];
}
- (void)CustomSearchBar:(CustomSearchBar *)segment didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSLog(@"---->>>>>>>>>%ld",indexPath.row);
}

-(void)CustomSearchBar:(CustomSearchBar *)segment cancleButton:(UIButton *)sender {

}
-(NSString *)CustomSearchBar:(CustomSearchBar *)searchBar imageNameForRowAtIndexPath:(NSIndexPath *)indexPath {
return @"Search_noraml";
}

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