UI第十二天

注意：

1.block的属性用 copy

2.pch文件 中定义一次，整个工程都能用 注意：Build Setting —>搜索lang —>  prefix header —>

 $(PROJECT_DIR)/PrefixHeader.pch   (相对路径)

3.        //设置button上title的颜色

        [button setTitleColor:[UIColorblackColor] forState:UIControlStateNormal];

4.cell的函数中用到if最好加else

- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section

{

   if (table == tableView )

    {

       NSArray *titleArray = @[@"D",@"F",@"H",@"M",@"W"];

       return titleArray[section];

    }

   else

    {

       return nil;

    }

}

一些概念：

1.反向传值之代理：

委托者中

(1).@protocol ViewController2Delegate <NSObject>

- (void)receiveDataDictionary:(NSMutableDictionary *)dataDic;

@end

(2).@property (assign,nonatomic)id<ViewController2Delegate>delegate;

(3).if ([self.delegaterespondsToSelector:@selector(receiveDataDictionary:)])

    {

        [self.delegatereceiveDataDictionary:dataDic];

    }

代理者中：

(4).遵循代理协议：

<ViewController2Delegate>

(5).建立代理关系：

 vc2.delegate = self;

(6).实现协议方法:

- (void)receiveDataDictionary:(NSMutableDictionary *)dataDic

{

//    NSLog(@"%@",dataDic);

    self.navigationController.navigationBar.barTintColor = [UIColorcolorWithRed:[[dataDic valueForKey:@"red"]floatValue]/255.0green:[[dataDic valueForKey:@"green"]floatValue]/255.0blue:[[dataDic valueForKey:@"blue"]floatValue]/255.0alpha:1.0];

    [dataDic1setObject:[dataDic valueForKey:@"name"]forKey:@"name"];

    [dataDic1setObject:[dataDic valueForKey:@"pass"]forKey:@"pass"];

    [dataDic1setObject:[dataDic valueForKey:@"sex"]forKey:@"sex"];

    [dataArray addObject:dataDic1];

//    NSLog(@"%@",dataDic1);

//    NSLog(@"%@",dataArray);

}

2.反向传值之block:

委托者中：

(1).typedefvoid(^block)(NSMutableDictionary *);

(2).@property (copy,nonatomic)block myBlock;

(3).if (self.myBlock)

    {

        self.myBlock(dataDic);

    }

代理者中：

(4).vc2.myBlock = ^(NSMutableDictionary *dataDic){

        self.navigationController.navigationBar.barTintColor = [UIColorcolorWithRed:[[dataDic valueForKey:@"red"]floatValue]/255.0green:[[dataDic valueForKey:@"green"]floatValue]/255.0blue:[[dataDic valueForKey:@"blue"]floatValue]/255.0alpha:1.0];

        [dataDic1setObject:[dataDic valueForKey:@"name"] forKey:@"name"];

        [dataDic1setObject:[dataDic valueForKey:@"pass"] forKey:@"pass"];

        [dataDic1setObject:[dataDic valueForKey:@"sex"] forKey:@"sex"];

        [dataArrayaddObject:dataDic1];

        [tablereloadData];

    };

3.搜索框：

(1).全局  UISearchDisplayController *displayerController;

   NSMutableArray *resultArray;//搜索结果数据

(2).UISearchBar *searchBar = [[UISearchBaralloc] initWithFrame:CGRectMake(0,0, 0, 40)];

   /*

     UISearchBarStyleDefault,

     UISearchBarStyleProminent,  

     UISearchBarStyleMinimal

     */

    searchBar.searchBarStyle =UISearchBarStyleMinimal;

    

    searchBar.showsBookmarkButton =YES;

    

    searchBar.placeholder =@"请输入英雄名字:";

    

    searchBar.delegate =self;

    //创建搜索控制器

    displayerController = [[UISearchDisplayControlleralloc] initWithSearchBar:searchBarcontentsController:self];

    

    displayerController.searchResultsDataSource =self;

    

    displayerController.searchResultsDelegate =self;

    

//    [displayerController.searchResultsTableView reloadData];

    

    resultArray = [NSMutableArrayarray];

    

   table.tableHeaderView = searchBar;

(3).- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView

{

   if (table == tableView)

    {

        return dataArray.count;

    }

   else

    {

       return 1;//结果数组

    }

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

{

   if (tableView == table)

    {

        return [dataArray[section]count];

    }

   else

    {

       return resultArray.count;

    }

}

(4).- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

   static NSString *cellID =@"cellID";

   UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellID];

   if (!cell)

    {

        cell = [[UITableViewCellalloc] initWithStyle:UITableViewCellStyleDefaultreuseIdentifier:cellID];

    }

   if (tableView == table)

    {

       cell.textLabel.text =dataArray[indexPath.section][indexPath.row];

    }

   else

    {

        cell.textLabel.text =resultArray[indexPath.row];

    }

   return cell;

}

(5).

- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText

{

    if (resultArray.count)

    {

        [resultArrayremoveAllObjects];

    }

   NSString *str = searchBar.text;

    //清除字符串中的空格

    str = [str stringByReplacingOccurrencesOfString:@" "withString:@""];

   for (NSArray *tempArrayin dataArray)

    {

       for (NSString *tempStrin tempArray)

        {

           NSRange range = [tempStr rangeOfString:str];

            //判断数据源字符串中是否含有搜索字符串

           if (range.location !=NSNotFound)

            {

               //如果含有就加入到结果数组中

                [resultArrayaddObject:tempStr];

            }

        }

    }

    //刷新table

    [displayerController.searchResultsTableViewreloadData];

}