iOS开发 tableView点击下拉扩展 + 内嵌collectionView上传图片效果

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//需要的效果

1.设置window的根视图控制器为一个UITableViewController

#import "AppDelegate.h"
#import "YCTableViewController.h"
@interface AppDelegate ()
@end

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
    self.window.backgroundColor = [UIColor whiteColor];
    self.window.rootViewController = [[UINavigationController alloc] initWithRootViewController:[[YCTableViewController alloc] init]];
    [self.window makeKeyAndVisible];
    return YES;
}

2.UITableViewController

//  Copyright © 2016年 Chason. All rights reserved.
//

#import <UIKit/UIKit.h>
#import "DepositFeeHeader.h"
#import "DepositFeeWithApplyTableViewCell.h"
#import "AppModel.h"
#import "MyCollectionViewCell.h"
#import "SectionHeaderViewCollectionReusableView.h"
@interface YCTableViewController : UITableViewController<UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout, UIImagePickerControllerDelegate, UIActionSheetDelegate, UINavigationControllerDelegate>
@property (nonatomic, strong) NSMutableArray *dataArray;
@property (nonatomic, strong) NSMutableArray *ownHobby;//上传图片数组1
@property (nonatomic, strong) NSMutableArray *imageArray;//上传图片数组2
@property (nonatomic, strong) UICollectionView *collection;
@property (nonatomic, strong) UIActionSheet *actionSheet;
@property (nonatomic, strong) AppModel *model;
@property (nonatomic, assign) NSInteger reUpdate;
@property (nonatomic, strong) NSString *imageString;
@property (nonatomic, assign) NSInteger number;

@end

//  Copyright © 2016年 Chason. All rights reserved.
//

#import "YCTableViewController.h"
//手机屏幕的宽和高
#define kScreenWidth [UIScreen mainScreen].bounds.size.width
#define KScreenHeight [UIScreen mainScreen].bounds.size.height
@interface YCTableViewController ()

@end

@implementation YCTableViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    _dataArray = [[NSMutableArray alloc] initWithCapacity:1];
    for (int i = 0; i < 3; i++) {
        AppModel *model = [[AppModel alloc] init];
        [_dataArray addObject:model];
    }
    _ownHobby = [NSMutableArray array];
    _reUpdate = 10000;//赋初值
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    AppModel *model = _dataArray[section];
    if ([model Is_Open]) {
        return 1;
    }else
    {
        return 0;
    }
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    [_ownHobby removeAllObjects];
    for (int i = 0; i < _dataArray.count; i++) {
        _imageArray= [NSMutableArray array];
        [_ownHobby addObject:_imageArray];
    }
    return _dataArray.count;
}

- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section
{
    AppModel *model = _dataArray[section];
    if (model.Is_Open == YES || section == _dataArray.count - 1) {
        return 0.01;
    }else {
        return 10;
    }
}

-(UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section
{
    UIView *backView = [[UIView alloc] init];
    backView.backgroundColor = [UIColor whiteColor];
    return backView;
}

- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
    return 40;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return 200;
}

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
    DepositFeeHeader *depositHeader = [tableView dequeueReusableHeaderFooterViewWithIdentifier:@"deposit"];
    if (depositHeader == nil) {
        depositHeader = [[DepositFeeHeader alloc] initWithReuseIdentifier:@"deposit"];
    }
    depositHeader.tag = 1000 + section;
    [depositHeader.tap addTarget:self action:@selector(showDetail:)];
    CGFloat rota;
    AppModel *model = _dataArray[section];
    if ([model Is_Open] == NO) {
        rota=0;
    }
    else{
        rota=M_PI_2;
    }
    [UIView animateWithDuration:0.1 animations:^{
        depositHeader.listImage.transform = CGAffineTransformMakeRotation(rota);
    }];
    return depositHeader;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (indexPath.section != _reUpdate) {
        AppModel *model = _dataArray[indexPath.section];
        DepositFeeWithApplyTableViewCell *cell =  [[DepositFeeWithApplyTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"applyCell"];
        UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc]init];
        flowLayout.minimumInteritemSpacing = 5;
        flowLayout.minimumLineSpacing = 5;
        flowLayout.sectionInset = UIEdgeInsetsMake(0 , 5 , 0 , 10 );
        flowLayout.itemSize = CGSizeMake(40 , 40);
        _collection = [[UICollectionView alloc]initWithFrame:CGRectMake(10, 10, cell.backView.frame.size.width - 20, 90) collectionViewLayout:flowLayout];
        [_collection registerClass:[SectionHeaderViewCollectionReusableView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:@"head"];
        _collection.tag = indexPath.section;
        _collection.bounces = NO;
        _collection.delegate = self;
        _collection.dataSource = self;
        _collection.backgroundColor = [UIColor whiteColor];
        [_collection registerClass:[MyCollectionViewCell class] forCellWithReuseIdentifier:@"identifier"];
        [cell.backView addSubview:_collection];
        [cell.shouldBtn addTarget:self action:@selector(upImage:) forControlEvents:UIControlEventTouchUpInside];
        cell.shouldBtn.tag = indexPath.row + 2000;
        cell.selectionStyle = UITableViewCellSelectionStyleNone;
        return cell;
    }else
    {
        return  nil;
    }
}

//对照片进行处理
- (void)upImage:(UIButton *)btn
{
    
    
}

-(void)textfiledShow
{
    if ([_ownHobby[_number] count]  == 9) {
        UIAlertController *alert1 = [UIAlertController alertControllerWithTitle:@"上传照片不能超过9张, 点击图片可以删除" message:@"" preferredStyle:UIAlertControllerStyleAlert];
        UIAlertAction *action = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        }];
        [alert1 addAction:action];
        [self.navigationController presentViewController:alert1 animated:YES completion:nil];
    }
    else
    {
        [self callActionSheet];
    }
}

//弹框提示相片来源
- (void)callActionSheet
{
    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
        self.actionSheet = [[UIActionSheet alloc] initWithTitle:@"选择照片" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"拍照", @"从相册选择", nil];
    }else
    {
        self.actionSheet = [[UIActionSheet alloc] initWithTitle:@"选择照片" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"从相册选择", nil];
    }
    [self.actionSheet showInView:self.tableView];
}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    NSUInteger sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    //pand是否支持相机
    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
        switch (buttonIndex) {
            case 0:
                sourceType = UIImagePickerControllerSourceTypeCamera;
                break;
            case 1:
                sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
                break;
            default:
                return;
        }
    }else
    {
        if (buttonIndex == 1) {
            return;
        }else
        {
            sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
        }
    }
    UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
    imagePicker.delegate = self;
    imagePicker.allowsEditing = YES;
    imagePicker.sourceType = sourceType;
    [self.navigationController presentViewController:imagePicker animated:YES completion:^{
        
    }];
}

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info
{
    [picker dismissViewControllerAnimated:YES completion:^{
        
    }];
    [_ownHobby[_number] addObject:[info objectForKey:UIImagePickerControllerOriginalImage]];
    [_collection reloadData];
}

-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
    _number = collectionView.tag;
    if ([_ownHobby[_number] count] == indexPath.row) {
        MyCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"identifier" forIndexPath:indexPath];
        UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(textfiledShow)];
        [cell.imageView addGestureRecognizer:tap];
        cell.imageView.userInteractionEnabled = YES;
        cell.cellStyle = cellStyleAdd;
        cell.layer.masksToBounds = NO;
        cell.layer.borderWidth = 0;
        cell.layer.cornerRadius = 0;
        [cell layoutSubviews];
        
        return cell;
    }
    else
    {
        MyCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"identifier" forIndexPath:indexPath];
        cell.photo.image = _ownHobby[_number][indexPath.row];
        cell.cellStyle = 1;
        [cell layoutSubviews];
        [cell.imageView removeFromSuperview];
        return cell;
    }
}

-(NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
    return  1;
}

-(NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
    return [_ownHobby[_number] count] + 1;
}

#pragma mark 头视图size
-(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section
{
    CGSize size = {0.01, 0.01};
    return size;
}
#pragma mark 每个Item大小
-(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
    return CGSizeMake(40, 40);
}

-(CGFloat)lengthWithString:(NSString *)string
{
    return [string length];
}

-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
    if ([_ownHobby[_number] count]) {
        [_ownHobby[_number] removeObjectAtIndex:indexPath.row];
        [_collection reloadData];
    }
}

- (void)showDetail:(UITapGestureRecognizer *)tap
{
    
    AppModel *model = _dataArray[tap.view.tag - 1000];
    if ([model Is_Open]) {
        model.Is_Open = NO;
    }else
    {
        model.Is_Open = YES;
    }
    [self.tableView reloadSections:[NSIndexSet indexSetWithIndex:tap.view.tag - 1000] withRowAnimation:UITableViewRowAnimationNone];
}

@end

3.自定义tableview的header和cell

//header

//  Copyright © 2016年 Chason. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface DepositFeeHeader : UITableViewHeaderFooterView
@property (nonatomic, strong) UILabel *titleLabel;
@property (nonatomic, strong) UIImageView *listImage;//尾按钮
@property (nonatomic, strong) UIGestureRecognizer *tap;
@end

//  Copyright © 2016年 Chason. All rights reserved.
//

#import "DepositFeeHeader.h"
//手机屏幕的宽和高
#define kScreenWidth [UIScreen mainScreen].bounds.size.width
#define KScreenHeight [UIScreen mainScreen].bounds.size.height
@implementation DepositFeeHeader

- (instancetype)initWithReuseIdentifier:(NSString *)reuseIdentifier
{
    self = [super initWithReuseIdentifier:reuseIdentifier];
    if (self) {
            UIView *backView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth, 40)];
            backView.backgroundColor = [UIColor whiteColor];
            [self addSubview:backView];
            self.titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(20, 10, kScreenWidth - 45, 20)];
            self.titleLabel.text = @"车辆押金";
            self.titleLabel.userInteractionEnabled = YES;
            self.titleLabel.textColor = [UIColor grayColor];
            [backView addSubview:self.titleLabel];
            self.listImage = [[UIImageView alloc] initWithFrame:CGRectMake(kScreenWidth - 25, 10, 10, 20)];
            self.listImage.image = [UIImage imageNamed:@"jiantou.png"];
            [backView addSubview:self.listImage];
            UIImageView *headerLine = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth, 1)];
            headerLine.image = [UIImage imageNamed:@"line"];
            [backView addSubview:headerLine];
            UIImageView *footerLine = [[UIImageView alloc] initWithFrame:CGRectMake(0, 39, kScreenWidth, 1)];
            footerLine.image = [UIImage imageNamed:@"line"];
            [backView addSubview:footerLine];
             self.tap = [[UITapGestureRecognizer alloc] init];
             [self addGestureRecognizer:self.tap];
    }
    return self;
}

@end

//cell

//  Copyright © 2016年 Chason. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface DepositFeeWithApplyTableViewCell : UITableViewCell
@property (nonatomic, strong) UIView *backView;
@property (nonatomic, strong) UIButton *cameraBtn;
@property (nonatomic, strong) UIImageView *photoImg;
@property (nonatomic, strong) UILabel *updatePresent;
@property (nonatomic, strong) UIButton *shouldBtn;
@end

//  Copyright © 2016年 Chason. All rights reserved.
//

#import "DepositFeeWithApplyTableViewCell.h"
//手机屏幕的宽和高
#define kScreenWidth [UIScreen mainScreen].bounds.size.width
#define KScreenHeight [UIScreen mainScreen].bounds.size.height
@implementation DepositFeeWithApplyTableViewCell

- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
        
        _backView = [[UIView alloc] initWithFrame:CGRectMake(20, 15, kScreenWidth - 40, 170)];
        [self addSubview:_backView];
        [self addDottedLineFromImageView:_backView];
        self.updatePresent = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth - 40, 20)];
        self.updatePresent.center = CGPointMake((kScreenWidth - 40) / 2, 110);
        self.updatePresent.text = @"点击左上角按钮添加照片";
        self.updatePresent.textColor = [UIColor lightGrayColor];
        self.updatePresent.textAlignment = NSTextAlignmentCenter;
        self.updatePresent.font = [UIFont systemFontOfSize:14];
        [_backView addSubview:self.updatePresent];
        self.shouldBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        self.shouldBtn.frame = CGRectMake((kScreenWidth - 40) / 2 - 45, 130, 90, 20);
        [self.shouldBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
        [self.shouldBtn setTitle:@"立即上传" forState:UIControlStateNormal];
        self.shouldBtn.layer.cornerRadius = 5;
        self.shouldBtn.backgroundColor = [UIColor colorWithRed:18/255.0  green:129/255.0  blue:201/255.0 alpha:1];
        [_backView addSubview:self.shouldBtn];
    }
    return self;
}

//添加虚线框
- (void)addDottedLineFromImageView:(UIView *)superView{
    
    CGFloat w = superView.frame.size.width;
    
    CGFloat h = superView.frame.size.height;
    
    CGFloat padding = 20;
    
    //创建四个imageView作边框
    
    for (NSInteger i = 0; i<4; i++) {
        
        UIImageView *imageView = [[UIImageView alloc] init];
        
        imageView.backgroundColor = [UIColor clearColor];
        
        if (i == 0) {
            
            imageView.frame = CGRectMake(0, 0, w, padding);
            
        }else if (i == 1){
            
            imageView.frame = CGRectMake(0, 0, padding, h);
            
        }else if (i == 2){
            
            imageView.frame = CGRectMake(0, h - padding, w, padding);
            
        }else if (i == 3){
            
            imageView.frame = CGRectMake(w - padding, 0, padding, h);
            
        }
        
        [superView addSubview:imageView];
        
        UIGraphicsBeginImageContext(imageView.frame.size);   //开始画线
        
        [imageView.image drawInRect:CGRectMake(0, 0, imageView.frame.size.width, imageView.frame.size.height)];
        
        CGContextSetLineCap(UIGraphicsGetCurrentContext(), kCGLineCapRound);  //设置线条终点形状
        
        CGFloat lengths[] = {10,5};
        
        CGContextRef line = UIGraphicsGetCurrentContext();
        
        CGContextSetStrokeColorWithColor(line, [UIColor blackColor].CGColor);
        
        CGContextSetLineDash(line, 0, lengths, 2);  //画虚线
        
        CGContextMoveToPoint(line, 0, 0);    //开始画线
        
        if (i == 0) {
            
            CGContextAddLineToPoint(line, w, 0);
            
        }else if (i == 1){
            
            CGContextAddLineToPoint(line, 0, w);
            
        }else if (i == 2){
            
            CGContextMoveToPoint(line, 0, padding);
            
            CGContextAddLineToPoint(line, w, padding);
            
        }else if (i == 3){
            
            CGContextMoveToPoint(line, padding, 0);
            
            CGContextAddLineToPoint(line, padding, w);
            
        }
        
        CGContextStrokePath(line);
        
        imageView.image = UIGraphicsGetImageFromCurrentImageContext();
        
    }
}

@end

4.collectionView布局和自定义item

#import <UIKit/UIKit.h>

@interface SectionHeaderViewCollectionReusableView : UICollectionReusableView
@property(nonatomic, strong)UILabel *titleLabel;
@end

#import "SectionHeaderViewCollectionReusableView.h"

@implementation SectionHeaderViewCollectionReusableView
-(instancetype)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        [self createViews];
    }
    return self;
}

-(void)createViews
{
    _titleLabel = [[UILabel alloc]init];
    [self addSubview:_titleLabel];
}

-(void)layoutSubviews
{
    [super layoutSubviews];
    _titleLabel.frame = CGRectMake(20, 30, 375, 50);
    _titleLabel.font = [UIFont systemFontOfSize:20];
}

@end

collectionView的item

#import <UIKit/UIKit.h>

@interface MyCollectionViewCell : UICollectionViewCell
typedef enum : NSInteger
{
    cellStyleDefault = 0,
    cellStyleSelected = 1,
    cellStyleAdd = 2,
}CollectionViewCellStyle;

@property(nonatomic, assign)CollectionViewCellStyle cellStyle;
@property(nonatomic, strong)UIImageView *photo;
@property(nonatomic, strong)UIImageView *imageView;
@property(nonatomic, strong)NSArray *array;
@property(nonatomic, strong)NSMutableArray *dataArray;
-(void)layoutSubviews;
@end
#import "MyCollectionViewCell.h"

@implementation MyCollectionViewCell
-(instancetype)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        _photo = [[UIImageView alloc]init];
        _imageView = [[UIImageView alloc]init];
        
    }
    return self;
}

-(void)layoutSubviews
{
    [super layoutSubviews];
    
    [_photo setFrame:self.bounds];
    _imageView.frame = self.bounds;
    switch (_cellStyle) {
        case cellStyleDefault:
            self.layer.borderColor = [UIColor colorWithRed:0 green:0.68 blue:0.94 alpha:1].CGColor;
            self.layer.masksToBounds = YES;
            self.layer.borderWidth = 1.8;
            //self.layer.cornerRadius = 20;
            self.backgroundColor = [UIColor whiteColor];
            [self.contentView addSubview:_photo];
            break;
        case cellStyleSelected:
            self.layer.borderColor = [UIColor colorWithRed:0 green:0.68 blue:0.94 alpha:1].CGColor;
            self.layer.masksToBounds = YES;
            self.layer.borderWidth = 1.8;
            //self.layer.cornerRadius = 20;
            self.backgroundColor = [UIColor colorWithRed:0 green:0.68 blue:0.94 alpha:1];
            [self.contentView addSubview:_photo];
            break;
        case cellStyleAdd:
            [self.imageView setImage:[UIImage imageNamed:@"addPhoto.png"]];
            self.backgroundColor = [UIColor whiteColor];
            [self.contentView addSubview:_imageView];
            break;
        default:
            break;
    }
    
}
@end

5.model

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>

@interface AppModel : NSObject
@property (nonatomic, assign) BOOL Is_Open;
@end

#import "AppModel.h"

@implementation AppModel

@end

//设置model是为了设置一个bool类型的变量,用来记录tableview的cell是否展开,从而进行reloadSection操作,进行动画展开或收缩.

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