iOS开发时左右侧滑

• 在我们开发中经常会遇到左右侧滑的需求，借鉴网上的资料，我整理下来，写了一个Demo；

Category:

.h中：
#import <UIKit/UIKit.h>
typedef enum{
    HYSideDirectionRight,
    HYSideDirectionLeft
} HYSideDirection;

@interface UIViewController (Side)
 //侧滑出来的View   
@property (weak,nonatomic) UIView * sideView;

//侧滑的方向,也决定了sideView是在mainPanelView 的左边还是右边    
@property (assign,nonatomic) HYSideDirection HYSideDirectionType;
//滑出状态
@property (assign,nonatomic) BOOL  isSide;
//侧滑并设置侧滑动画时间
- (void)sideAnimateWithDuration:(NSTimeInterval)duration;

@end

.m中：
#import "UIViewController+Side.h"
#import <objc/runtime.h>
//导航条高度
const  CGFloat HYNavigationBarHeight = 64;

@implementation UIViewController (Side)
//最开始的view
static UIView * _mainView;
#pragma mark - 通过运行时动态添加属性
//定义关联的Key
static const char * sideViewKey = "sideView";

- (void)setSideView:(UIView *)sideView{
    [[UIApplication sharedApplication].keyWindow addSubview:sideView];
    objc_setAssociatedObject(self, sideViewKey, sideView, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
    _mainView = self.navigationController?self.navigationController.view:self.view; 
}

- (UIView *)sideView{
    return  objc_getAssociatedObject(self, sideViewKey);
}
#pragma mark - 侧滑方向
static const char * sideDirectionTypeKey = "sideDirectionType";

- (HYSideDirection)HYSideDirectionType{  
    return  [objc_getAssociatedObject(self, sideDirectionTypeKey) intValue];
}

- (void)setHYSideDirectionType:(HYSideDirection)HYSideDirectionType{
    objc_setAssociatedObject(self, sideDirectionTypeKey, @(HYSideDirectionType), OBJC_ASSOCIATION_ASSIGN);
    CGRect rect = self.sideView.bounds;
   
    if (HYSideDirectionType == HYSideDirectionRight) {
        //右滑,滑动距离
        _sideWidth = rect.size.width;
        
        //右滑,则sideView被添加到view左边
        self.sideView.frame = CGRectMake(- rect.size.width, 0, rect.size.width, [UIScreen mainScreen].bounds.size.height);
    }else{
        
        //左滑,滑动距离
        _sideWidth = -rect.size.width;
        //左滑,则sideView被添加到view右边
        self.sideView.frame = CGRectMake([UIScreen mainScreen].bounds.size.width , 0 , rect.size.width, rect.size.height);
    }
}

#pragma mark - 是否侧滑
//定义关联的Key
static const char * isSideKey = "isSide";

- (BOOL)isSide{
    return  [objc_getAssociatedObject(self, isSideKey) integerValue];
}


- (void)setIsSide:(BOOL)isSide{
    
    objc_setAssociatedObject(self, isSideKey, @(isSide), OBJC_ASSOCIATION_ASSIGN);
}

//侧滑出来的宽度
static CGFloat _sideWidth;
- (void)sideAnimateWithDuration:(NSTimeInterval)duration{
    
    if (self.isSide) {   
        self.isSide = NO;
        [self hideSideViewWithDuration:(NSTimeInterval)duration];
        return;
    }
    self.isSide = YES;
    [UIView animateWithDuration:duration animations:^{
        
        _mainView.transform = CGAffineTransformMakeTranslation(_sideWidth, 0);;
        
        self.sideView.transform = CGAffineTransformMakeTranslation(_sideWidth, 0);
    }];
    
}

//侧滑时间
- (void)hideSideViewWithDuration:(NSTimeInterval)duration{
    
    [UIView animateWithDuration:duration animations:^{
        _mainView.transform = CGAffineTransformIdentity;
        self.sideView.transform = CGAffineTransformIdentity;
    }];  
}

@end

侧滑页面：

.h中：
#import <UIKit/UIKit.h>
@interface MySideVC : UITableViewController
@property (nonatomic,copy)  void(^sideblock)();
@end

.m中：
#import "MySideVC.h"

@implementation MySideVC

- (void)viewDidLoad{
    
    [super viewDidLoad];
    [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"sideCell"];
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    
    return 20;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    
    UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier:@"sideCell" forIndexPath:indexPath];
    cell.backgroundColor = [UIColor grayColor];
    cell.textLabel.text = [NSString stringWithFormat:@"我是第%ld行",indexPath.row];
    return cell;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    if(self.sideblock) self.sideblock();
}

@end

试图控制器

.m中：
#import "ViewController.h"
#import "UIViewController+Side.h"
#import "MySideVC.h"
@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.view.backgroundColor = [UIColor whiteColor];
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"侧滑" style:UIBarButtonItemStylePlain target:self action:@selector(side)];
   
    MySideVC * vc = [[MySideVC alloc]init];
    //设置侧滑的view
    self.sideView = vc.view;
    vc.view.backgroundColor = [UIColor whiteColor];
    //侧滑的距离由侧滑的view的宽度决定
    vc.view.frame = CGRectMake(0, 0, 2*self.view.bounds.size.width/3, self.view.bounds.size.height);
    [self addChildViewController:vc];
    //设置侧滑view的block,什么时候隐藏侧滑的view可以由侧滑的控制器决定
    vc.sideblock = ^{
        [self side];
    };
    //侧滑的方向,向左边滑动
    self.HYSideDirectionType = HYSideDirectionLeft;
}

- (void)side{
    [self sideAnimateWithDuration:0.25];
}

- (void)touchesBegan:(NSSet*)touches withEvent:(UIEvent *)event{
    
    if (self.isSide) {
        [self side];
    }
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

效果图：