zuoyebang/tongxin/VC/Map/RailSearchAddressVC.m

//
//  RailSearchAddressVC.m
//  tongxin
//
//  Created by WeiChaoZheng on 2018/11/10.
//  Copyright © 2018年 xTT. All rights reserved.
//

#import "RailSearchAddressVC.h"
#import "RailAddressTableViewCell.h"
#define SearchHistroySaveCount 5
@interface RailSearchAddressVC ()<UISearchBarDelegate,AMapSearchDelegate>

@property (nonatomic, strong) AMapSearchAPI *search;

@property (nonatomic, strong) AMapInputTipsSearchRequest *currentRequest;


/**
 历史搜索数据
 */
@property (nonatomic, strong) NSMutableArray *historyData;
/**
 是否是历史记录的模式
 */
@property (nonatomic, assign) BOOL isHistory;

/**
 搜索栏
 */
@property (strong, nonatomic) UISearchBar *searchBar;

@end

@implementation RailSearchAddressVC

@synthesize myDataSource = _myDataSource;

- (NSMutableArray *)myDataSource{
    if (!_myDataSource) {
        _myDataSource = [NSMutableArray array] ;
    }
    return _myDataSource;
}
-(UIImage *)imageWithColor:(UIColor *)color
{
    CGRect rect = CGRectMake(0, 0, 1, 1);
    UIGraphicsBeginImageContext(rect.size);
    CGContextRef context = UIGraphicsGetCurrentContext();
    
    CGContextSetFillColorWithColor(context, [color CGColor]);
    CGContextFillRect(context, rect);
    
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    
    return image;
}
-(void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    self.navigationController.navigationBar.translucent = NO;
    [self.navigationController.navigationBar setBackgroundImage:[self imageWithColor:RGB(176, 176, 176)]
                                                 forBarPosition:UIBarPositionAny
                                                     barMetrics:UIBarMetricsDefault];
    [self.navigationController.navigationBar setShadowImage:[self imageWithColor:RGB(176, 176, 176)]];
}
-(void)viewWillDisappear:(BOOL)animated{
    [super viewWillDisappear:animated];
    
}
- (void)viewDidLoad {
    [super viewDidLoad];
  
    
    //初始化搜索
    self.search = [[AMapSearchAPI alloc] init];
    self.search.delegate = self;
    UIView *titleView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, ScreenWidth-42-8, 36)];
    _searchBar = [[UISearchBar alloc] initWithFrame:titleView.bounds];
    
    _searchBar.delegate = self;
    
    [_searchBar setTintColor:[UIColor redColor]];
    
    [_searchBar setPlaceholder:@"请输入搜索地址"];
    
    [titleView addSubview:_searchBar];
    self.navigationItem.titleView = titleView;
    
    
    //注册cell
    [self.myTableView registerNib:[UINib nibWithNibName:@"RailAddressTableViewCell" bundle:[NSBundle mainBundle]] forCellReuseIdentifier:@"RailAddressTableViewCellID"];
    //去线
    self.myTableView.separatorStyle = UITableViewCellSeparatorStyleNone;
    [self.view addSubview: self.myTableView];
    
}

//MARK:    -----搜索框    UISearchBarDelegate -----
- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar{
    xLog(@"aasdads");
}
- (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar{
    self.isHistory = YES;
    [self.myDataSource removeAllObjects];
    // 显示 myTableView 显示历史搜索记录
    if([UserDefaults valueForKey:SearchHistory]){
        // 把字典转换成 模型类
        NSArray *tempArr = [UserDefaults valueForKey:SearchHistory];
        NSMutableArray *arr = [NSMutableArray array];
        for (int i = 0 ; i < tempArr.count; i++) {
            AMapTip *model = [AMapTip mj_objectWithKeyValues:tempArr[i]];
            [arr addObject:model];
        }
        self.historyData = [[NSMutableArray alloc] initWithArray:@[arr]];
        self.myDataSource = self.historyData;
    }
    [self.myTableView reloadData];
    return YES;
}
-(BOOL)searchBar:(UISearchBar *)searchBar shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text{
    NSString *str = searchBar.text;
    NSString *resultStr = [str stringByReplacingCharactersInRange:range withString:text];
    [self searchRequestString:resultStr];
    return YES;
}
-(void)searchRequestString:(NSString *)str{
    //搜索的信息
    AMapInputTipsSearchRequest *request = [AMapInputTipsSearchRequest new];
    request.keywords = str;
    self.currentRequest = request;
    //调起检索
    [self.search AMapInputTipsSearch:request];
    self.isHistory = NO;
}

//MARK: ----  高德 搜索 API 代理方法 ----

-(void) AMapSearchRequest:(id)request didFailWithError:(NSError *)error{
    xLog(@"Search Error: %@",error.description);
}

-(void) onInputTipsSearchDone:(AMapInputTipsSearchRequest *)request response:(AMapInputTipsSearchResponse *)response{
    
    if (self.currentRequest == nil || self.currentRequest != request ){
        return;
    }
    if (response.count == 0){
        return;
    }
    [self.myDataSource removeAllObjects];
    //过滤掉location也为空的 查询结果 比如: 天津市
    //
    
    NSMutableArray *tempArr = [NSMutableArray array];
    for (AMapTip* item in response.tips) {
        if(item.location){
            [tempArr addObject:item];
        }
    }
    
    [self.myDataSource addObjectsFromArray:@[tempArr]];
    [self.myTableView setHidden:NO];
    [self.myTableView reloadData];
    
    
}
//MARK: 清除 历史轨迹的搜索记录

-(void)clearHistroyAction{
    [UserDefaults removeObjectForKey:SearchHistory];
    [UserDefaults synchronize];
    [self.historyData removeAllObjects];
    self.isHistory = YES;
    self.myDataSource = self.historyData;
    [self.myTableView reloadData];
}


//MARK: 存进历史轨迹记录
-(void)saveHistorySearch:(AMapTip*)tip{
    NSDictionary *dic = [tip mj_keyValues];
    NSMutableArray * arr;
    if([UserDefaults valueForKey:SearchHistory]){
        arr = [[NSMutableArray alloc] initWithArray:[UserDefaults valueForKey:SearchHistory]];
        int tempIndex = -1;
        for (int i = 0; i < arr.count; i++) {
            NSString *uid = arr[i][@"uid"];
            if([tip.uid isEqualToString:uid]){
                tempIndex = i;
            }
        }
        if(tempIndex >= 0){
            // 存在历史记录中的
            //移到第一位
            [arr removeObjectAtIndex:tempIndex];
            [arr insertObject:dic atIndex:0];
        }else{
            //不存在的
            if(arr.count == SearchHistroySaveCount){
                [arr insertObject:dic atIndex:0];
                [arr removeLastObject];
            }else{
                [arr insertObject:dic atIndex:0];
            }
        }
        
    }else{
        arr = [NSMutableArray array];
        [arr addObject:dic];
        
    }
    [UserDefaults setValue:arr forKey:SearchHistory];
    [UserDefaults synchronize];
}

-(UIView*)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{
    if(section == 0){
        if(self.isHistory){
            UIView * view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, ScreenWidth, 30)];
            view.backgroundColor = [UIColor whiteColor];
            
            UILabel * label = [[UILabel alloc] initWithFrame:CGRectMake(14, (30-21)/2, 100, 21)];
            label.font = [UIFont systemFontOfSize:15];
            label.textColor = RGB(51, 51, 51 );
            label.text = @"搜索记录";
            [view addSubview: label];
            UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
            button.frame = CGRectMake(ScreenWidth-30, 0, 30 , 30);
            [button setImage:[UIImage imageNamed:@"icon_delect_search_grey"] forState:0];
            [button addTarget:self action:@selector(clearHistroyAction) forControlEvents:UIControlEventTouchUpInside];
            [view addSubview: button];
            return  view;
        }
        return nil;
        
    }else{
        return nil;
    }
}
-(CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{
    if(section == 0){
        if(self.isHistory){
            return 30;
        }
        return 0.01;
    }else{
        return 0.01;
    }
}



- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    RailAddressTableViewCell * cell = [tableView dequeueReusableCellWithIdentifier:@"RailAddressTableViewCellID" forIndexPath:indexPath];
    AMapTip * model = self.myDataSource[indexPath.section][indexPath.row];
    cell.aTitleLabel.text = model.name;
    cell.model = model;
    return cell;
}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    AMapTip * model = self.myDataSource[indexPath.section][indexPath.row];
    if(self.isHistory){
        
        [self searchRequestString:model.name];
        [self.searchBar becomeFirstResponder];
        self.searchBar.text = model.name;        
        self.isHistory = NO;
        [self.myTableView reloadData];
        
    }else{
        //存进搜索历史记录
        [self saveHistorySearch:model];
        if(self.selectAddressCallBack){
            self.selectAddressCallBack(model.name, model.location);
        }
        [self.navigationController popViewControllerAnimated:YES];
        
    }
    
    
    
}
-(void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{
    [self.searchBar resignFirstResponder];
}



@end