最近在项目开发中用到了搜索框，之前都是用的系统的searchbar，现有项目中用的是EVNCustomSearchBar，我试了一下还挺方便，下面说一下具体的用法。
第一步：引入添加相关的委托代理EVNCustomSearchBarDelegate，懒加载初始化对象
if (!_searchBar) {
_searchBar = [[EVNCustomSearchBar alloc] initWithFrame:CGRectMake(16, 0, K_CC_SCREEN_WIDTH-32, 44)];
_searchBar.backgroundColor = K_CC_COLOR_STRING(@"#F5F5F5");
_searchBar.textColor = K_CC_COLOR_STRING(@"#999999");
_searchBar.textFieldColor = [UIColor clearColor];
_searchBar.iconImage = K_CC_IMAGE(@"newhome_search");
_searchBar.iconAlign = EVNCustomSearchBarIconAlignCenter;
[_searchBar setPlaceholder:K_CC_LOCAL_STR(@"home.search")];// 搜索框的占位符
_searchBar.placeholderColor = K_CC_COLOR_STRING(@"#999999");
_searchBar.delegate = self; //设置代理
_searchBar.isHiddenCancelButton = YES;
_searchBar.tintColor = K_CC_COLOR_STRING(@"#999999");
[_searchBar sizeToFit];
}
return _searchBar;
第二步：添加到相应的view上
UIView *headerView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, K_CC_SCREEN_WIDTH, 44)];
headerView.backgroundColor = [UIColor clearColor];
[headerView addSubview:self.searchBar];
self.distributeTable.tableHeaderView = headerView;
第三步：添加相关的搜索代理逻辑处理
#pragma mark - EVNCustomSearchBarDelegate -
- (void)searchBar:(EVNCustomSearchBar *)searchBar textDidChange:(NSString *)searchText {
if (searchText.length > 0) {
// 根据模型属性搜索结果
self.searchList=[NSMutableArray arrayWithArray:[[NDSearchTool tool] searchWithFieldArray:@[@"username"] inputString:searchText inArray:self.dataAddressList]];
self.isSearch = YES;
}else{
self.isSearch = NO;
self.currentSeasSearchItem=-1;
//清空搜索内容Id
[self.searchList removeAllObjects];
}
[self.distributeTable reloadData];
}
- (NSArray *)searchWithFieldArray:(NSArray *)fieldArray
inputString:(NSString *)inputString
inArray:(NSArray *)array
{
if (![array count] || ![fieldArray count])
{
return nil;
}
NSPredicate *scopePredicate;
NSMutableArray *backArray = [NSMutableArray array];
for (NSString *fieldString in fieldArray)
{
NSArray *tempArray;
scopePredicate = [NSPredicate predicateWithFormat:@"SELF.%@ contains[c] %@", fieldString, inputString];
tempArray = [array filteredArrayUsingPredicate:scopePredicate];
for (NSObject *object in tempArray)
{
if (![backArray containsObject:object])
{
[backArray nd_addObj:object];
}
}
}
return backArray;
}
完成这些就可以实现动态的模糊搜索，大功告成。