xiaobawang/tongxin/VC/Map/RailADNameChooseVC.m

//
//  RailADNameChooseVC.m
//  tongxin
//
//  Created by WeiChaoZheng on 2018/11/7.
//  Copyright © 2018年 xTT. All rights reserved.
//

#import "RailADNameChooseVC.h"

@implementation RailADNameChooseCollectionCell
-(void)awakeFromNib{
    [super awakeFromNib];
    
    self.itemTitleLabel.layer.borderColor = RGB(229, 229, 229).CGColor;
    _itemTitleLabel.layer.borderWidth = 1;
    self.itemTitleLabel.textAlignment = 1;
    
    self.itemTitleLabel.layer.cornerRadius = 15.f;
    self.itemTitleLabel.layer.masksToBounds = YES;
}
@end

@interface RailADNameChooseVC ()<UICollectionViewDelegateFlowLayout,
                                UICollectionViewDelegate,
                                UICollectionViewDataSource,
                            UITextFieldDelegate>

@end

@implementation RailADNameChooseVC
@synthesize myDataSource = _myDataSource;
-(NSMutableArray *)myDataSource{
    if(!_myDataSource){
        _myDataSource = [NSMutableArray arrayWithArray:@[@"学校",@"家",@"朋友",@"公园",@"超市",@"广场",]];
    }
    return _myDataSource;
}
- (void)viewDidLoad {
    [super viewDidLoad];
    self.zx_navTitle = @"地址名称";
    self.view.backgroundColor = tabViewBG;
    self.myCollection.backgroundColor = [UIColor whiteColor];
    self.myCollection.delegate = self;
    self.myCollection.dataSource = self;
    [self.closeBtn setHidden:YES];
    self.addressTextField.delegate = self;
    self.addressTextField.placeholder = @"请输入地址名称";
    UICollectionViewFlowLayout *FL = [[UICollectionViewFlowLayout alloc] init];
    FL.minimumInteritemSpacing= 5;
    self.myCollection.collectionViewLayout = FL;
    if(self.infoRail){
        self.addressTextField.text = self.infoRail.name;
    }
    [self zx_setRightBtnWithText:@"保存" clickedBlock:^(ZXNavItemBtn * _Nonnull btn) {
        [self saveBtnAction];
    }];
    [self.topView mas_remakeConstraints:^(MASConstraintMaker *make) {
        make.left.right.equalTo(self.view);
        make.top.equalTo(self.view).offset(iPhoneX_NavHeight+15);
        make.height.mas_equalTo(49);
    }];
}

- (void)saveBtnAction
{
    [self.addressTextField resignFirstResponder];
    if(self.addressTextField.text.length == 0){
        [SVProgressHUD showErrorWithStatus:@"请设置地址名称"];
        return;
    }
    self.infoRail.name = self.addressTextField.text;
    [self.navigationController popViewControllerAnimated:YES];
    
}
/**
 清除 输入框的按钮
 */
- (IBAction)closeBtnAction:(id)sender {
    self.addressTextField.text = @"";
    [sender setHidden:YES];
}
#pragma collectionView

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
    // 功能列表
    return self.myDataSource.count;
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    
    // 功能的 collection
    RailADNameChooseCollectionCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"RailADNameChooseCollectionCell"
                                                                        forIndexPath:indexPath];
    cell.itemTitleLabel.text = self.myDataSource[indexPath.item];
    return cell;
}

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
    NSString *title =  self.myDataSource[indexPath.item];
    CGSize textSize = [title sizeWithAttributes:@{NSFontAttributeName:DefineFontSize}];
    
    //根据文字计算 宽度
    return (CGSize){textSize.width+4+4+40, 30};
}
- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section{
    return UIEdgeInsetsMake(18, 0, 0, 0);
}
//设置水平间距 (同一行的cell的左右间距）

-(CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section {
    
    return 10;
}
//垂直间距 (同一列cell上下间距)

- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section {
    
    return 20;
}

-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath{
    NSString * title = self.myDataSource[indexPath.item];
    self.addressTextField.text = title;
}
    
    

//MARK: -------- UITextField -------
-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string{
    // 最终的结果
    NSString *str = textField.text;
    NSString *resultStr = [str stringByReplacingCharactersInRange:range withString:string];
    if(resultStr.length == 0){
        
        [self.closeBtn setHidden:YES];
    }else{
        [self.closeBtn setHidden:NO];
    }
    return YES;
} 

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end