iOS中搜索框EVNCustomSearchBar使用小结

　　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。