IOS仿京东地址选址器 IOS仿京东地址选址器

【IOS仿京东地址选址器】项目需求一个地址选址器，必须是动态的网络或者本地数据库中获取下一级的地址，然后偶然看到京东的地址选择器不错，就模仿了下。
设计模式是模仿了UItableView的数据源和代理模式，其中数据源返回用了block，是因为有可能返回的数据源是网络请求，这样用block回调方便些。
代码如下：

#import #import "SFSelectModel.h" #import "SFSelectTableViewCell.h" typedef void (^SoureBlock)(NSMutableArray *models); @protocol SFSelectVCDataSource - (void)sFSelectVCSourceBackWithDepth:(NSInteger)depth regionId:(NSInteger)regionId block:(SoureBlock)block; @end @protocol SFSelectVCDelegate - (void)sFSelectVCDidChange:(NSString*)adress firstRegionId:(NSInteger)firstRegionId lastRegionId:(NSInteger)lastRegionId; @end @interface SFSelectVC : UIViewController @property (nonatomic ,weak) id dataSource; @property (nonatomic ,weak) id delegate; - (instancetype)initWithFirstData:(NSMutableArray*)firstData; @end

.m文件：

// //SFSelectVC.m //iseasoftCompany // //Created by songfei on 2018/4/19. //Copyright ? 2018年 hycrazyfish. All rights reserved. //#import "SFSelectVC.h" #import "SFTitleView.h" static NSString *const CellID = @"CellID"; @interface SFSelectVC () @property (nonatomic, strong) SFTitleView *titleView; // 选择头部 @property (nonatomic ,strong) UITableView *tableView; @property (nonatomic ,strong) NSMutableArray *allModelArray; //全部的数据 @property (nonatomic ,strong) NSMutableArray *midelModels; //中间分类 @end@implementation SFSelectVC{ SFSelectModel *lastSelctcModel; NSMutableArray *btnArry; }- (instancetype)initWithFirstData:(NSMutableArray*)firstData{ if (self = [super init]) { self.midelModels = firstData; } return self; }- (SFTitleView *)titleView{ if (!_titleView) { _titleView = [[SFTitleView alloc] initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, 44)]; _titleView.backgroundColor = [UIColor whiteColor]; __weak typeof (self)weakSelf = self; _titleView.btnBlock = ^(NSInteger onClickBtn) { [weakSelf onClickBtn:onClickBtn]; }; } return _titleView; }- (UITableView *)tableView{ if (!_tableView) { _tableView = [[UITableView alloc]init]; _tableView.backgroundColor = [UIColor groupTableViewBackgroundColor]; _tableView.tableFooterView = [UIView new]; //不显示多余的分割线 _tableView.dataSource = self; _tableView.delegate = self; [_tableView registerClass:[SFSelectTableViewCell class] forCellReuseIdentifier:CellID]; } return _tableView; } - (void)viewDidLoad { [super viewDidLoad]; self.view.backgroundColor = [[UIColor blackColor]colorWithAlphaComponent:0.5f]; [self.view addSubview:self.titleView]; [self.view addSubview:self.tableView]; [self setMasnory]; btnArry = [NSMutableArray array]; self.allModelArray = [NSMutableArray array]; [self.tableView reloadData]; } - (void)setMasnory{ [self.tableView mas_makeConstraints:^(MASConstraintMaker *make) { make.bottom.mas_equalTo(self.view.mas_bottom); make.left.mas_equalTo(self.view.mas_left); make.right.mas_equalTo(self.view.mas_right); make.height.mas_equalTo(300); }]; [self.titleView mas_makeConstraints:^(MASConstraintMaker *make) { make.bottom.mas_equalTo(self.tableView.mas_top); make.left.mas_equalTo(self.tableView.mas_left); make.right.mas_equalTo(self.tableView.mas_right); make.height.mas_equalTo(44); }]; }#pragma mark --UITableViewDataSource - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ return self.midelModels.count; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ SFSelectTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellID forIndexPath:indexPath]; if(!cell){ cell = [[SFSelectTableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellID]; } [cell setModel:self.midelModels[indexPath.row]]; return cell; }#pragma mark --UITableViewDelegate - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{ return 40; }- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{ [tableView deselectRowAtIndexPath:indexPath animated:true]; __weak typeof (self)weakSelf = self; SFSelectModel *clickModel = self.midelModels[indexPath.row]; NSIndexPath *lastIndexPath; if (lastSelctcModel == clickModel){}else if (lastSelctcModel.depth == clickModel.depth){ if (lastSelctcModel) { NSInteger row = [self.midelModels indexOfObject:lastSelctcModel]; lastIndexPath = [NSIndexPath indexPathForRow:row inSection:0]; }for (SFSelectModel *mod in self.midelModels) { mod.isSelect = false; } self.midelModels[indexPath.row].isSelect = true; [self.titleView removeBtnWitBtn:btnArry.lastObject]; [btnArry removeLastObject]; UIButton *btn = [self.titleView addOneButton:clickModel.name]; [btnArry addObject:btn]; lastSelctcModel = clickModel; }else{ lastSelctcModel = clickModel; self.midelModels[indexPath.row].isSelect = true; UIButton *btn = [self.titleView addOneButton:clickModel.name]; [btnArry addObject:btn]; }if (self.dataSource) { [self.dataSource sFSelectVCSourceBackWithDepth:clickModel.depth+1 regionId:clickModel.regionId block:^(NSMutableArray *models) { if (models.count > 0) { if (!(weakSelf.allModelArray.lastObject.lastObject.depth == weakSelf.midelModels.lastObject.depth) || weakSelf.allModelArray.count == 0) { [weakSelf.allModelArray addObject:weakSelf.midelModels]; }weakSelf.midelModels = models; [weakSelf.tableView reloadData]; }else{ if (!(weakSelf.allModelArray.lastObject.lastObject.depth == weakSelf.midelModels.lastObject.depth) || weakSelf.allModelArray.count == 0) { [weakSelf.allModelArray addObject:weakSelf.midelModels]; }if (lastIndexPath) { [weakSelf.tableView reloadRowsAtIndexPaths:@[lastIndexPath] withRowAnimation:UITableViewRowAnimationNone]; } [weakSelf.tableView reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationNone]; } }]; }}#pragma mark --点击了BTN - (void)onClickBtn:(NSInteger)index{ if (index < 0) { if (self.delegate) { NSInteger firstRegionId = 0; NSInteger lastRegionId = 0; NSString *adressStr = @""; for (int i = 0; i < self.allModelArray.count; i++) { if (i == 0) { for (SFSelectModel *model in self.allModelArray[i]) { if (model.isSelect) { firstRegionId = model.regionId; adressStr = [adressStr stringByAppendingString:model.name]; } } }else if (i == (self.allModelArray.count - 1)){ for (SFSelectModel *model in self.allModelArray[i]) { if (model.isSelect) { lastRegionId = model.regionId; adressStr = [adressStr stringByAppendingString:model.name]; } } }else{ for (SFSelectModel *model in self.allModelArray[i]) { if (model.isSelect) { lastRegionId = model.regionId; adressStr = [adressStr stringByAppendingString:model.name]; } } }} if ([adressStr isEqualToString:@""]) { [self dismissViewControllerAnimated:true completion:nil]; return; } [self.delegate sFSelectVCDidChange:adressStr firstRegionId:firstRegionId lastRegionId:lastRegionId]; } [self dismissViewControllerAnimated:true completion:nil]; return; }if (btnArry.count == (index +1)) { return; }for (NSInteger i = index + 1; i < btnArry.count; i++) { UIButton* btn = btnArry[I]; [self.titleView removeBtnWitBtn:btn]; }[btnArry removeObjectsInRange:NSMakeRange(index+1, btnArry.count - (index + 1))]; [self.allModelArray removeObjectsInRange:NSMakeRange(index+1, self.allModelArray.count - (index +1))]; self.midelModels = self.allModelArray.lastObject; [self.tableView reloadData]; NSIndexPath *nowPath; for (SFSelectModel *model in self.midelModels) { if (model.isSelect) { NSInteger atNub = [self.midelModels indexOfObject:model]; nowPath = [NSIndexPath indexPathForRow:atNub inSection:0]; lastSelctcModel = model; } }[self.tableView scrollToRowAtIndexPath:nowPath atScrollPosition:UITableViewScrollPositionMiddle animated:true]; }//点击其他地方退出 - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{ CGPoint point = [[touches anyObject] locationInView:self.view]; point = [self.tableView.layer convertPoint:point fromLayer:self.view.layer]; if (![self.tableView.layer containsPoint:point]) { point = [[touches anyObject] locationInView:self.view]; point = [self.titleView.layer convertPoint:point fromLayer:self.view.layer]; if (![self.titleView.layer containsPoint:point]){ [self dismissViewControllerAnimated:true completion:nil]; } } } @end

代码Git链接：https://github.com/songfeiSF/-SFAdressSelectVC-
图示：

QQ20180420-163409-HD.gif