- 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：
