说明:
最近在项目中需要实现一个抽屉效果,后来查了查资料觉得
MMDrawerController
还是比较不错的,下载下来试了一试MMDrawerController顺便做了一个小Demo,下图(希望能帮助大家):

image
这里的话我是直接使用的
cocoapods
,我就不详细介绍了,这里我就直接说Demo了,使用为纯代码
代码:
1、首先创建三个控制器为center、left、right(我这里就简写了,具体的话大家可以下载Demo),创建完成之后,我们来到我们的AppDelegate,开始编写我们的代码了
-
1.1、多话不说,先导入头文件,并且添加一个MMDrawerController的属性
//为MMDrawerController框架中 #import "MMDrawerController.h" #import "UIViewController+MMDrawerController.h" //为自己创建的三个控制器 #import "LitterLCenterViewController.h" #import "LitterLLeftViewController.h" #import "LitterLRightViewController.h" @interface LitterLAppDelegate () /** * MMDrawerController属性 */ @property(nonatomic,strong) MMDrawerController * drawerController; @end
-
1.2、上面的做完后,我们便要显示我们的窗口到设备上,接下来来到这里
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { //1、初始化控制器 UIViewController *centerVC = [[LitterLCenterViewController alloc]init]; UIViewController *leftVC = [[LitterLLeftViewController alloc]init]; UIViewController *rightVC = [[LitterLRightViewController alloc]init]; //2、初始化导航控制器 UINavigationController *centerNvaVC = [[UINavigationController alloc]initWithRootViewController:centerVC]; UINavigationController *leftNvaVC = [[UINavigationController alloc]initWithRootViewController:leftVC]; UINavigationController *rightNvaVC = [[UINavigationController alloc]initWithRootViewController:rightVC]; //3、使用MMDrawerController self.drawerController = [[MMDrawerController alloc]initWithCenterViewController:centerNvaVC leftDrawerViewController:leftNvaVC rightDrawerViewController:rightNvaVC]; //4、设置打开/关闭抽屉的手势 self.drawerController.openDrawerGestureModeMask = MMOpenDrawerGestureModeAll; self.drawerController.closeDrawerGestureModeMask =MMCloseDrawerGestureModeAll; //5、设置左右两边抽屉显示的多少 self.drawerController.maximumLeftDrawerWidth = 200.0; self.drawerController.maximumRightDrawerWidth = 200.0; //6、初始化窗口、设置根控制器、显示窗口 self.window = [[UIWindow alloc]initWithFrame:[UIScreen mainScreen].bounds]; [self.window setRootViewController:self.drawerController]; [self.window makeKeyAndVisible]; return YES; }
2、完成上面后基本的抽屉效果就已经实现了,在这里的话,我们将要实现导航栏上面的按钮,以及一些效果。
-
2.1、这里的话我们先实现导航栏的效果吧:
- 2.1.1、这里的话我用的是通过UIBarButtonItem的方法去实现的
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:@"menu"] style:UIBarButtonItemStylePlain target:self action:@selector(leftBtn)]; self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:@"navigationbar_friendattention"] style:UIBarButtonItemStylePlain target:self action:@selector(rightBtn)];
- 2.1.2、然而我们的作者给了我们一个类,里面有他通过QuartzCore绘制出来的按钮,你们想看的话可以去看看
//首先得导入头文件 #import "MMDrawerBarButtonItem.h" //---------------------------- self.navigationItem.leftBarButtonItem = [[MMDrawerBarButtonItem alloc]initWithTarget:self action:@selector(leftBtn)]; self.navigationItem.rightBarButtonItem = [[MMDrawerBarButtonItem alloc]initWithTarget:self action:@selector(rightBtn)];
- 2.1.3、这里的话就是我们的方法,其实很简单(就一行代码)但是过程很迷茫
//首先得导入头文件 #import "UIViewController+MMDrawerController.h" //---------------------------- -(void)leftBtn{ //这里的话是通过遍历循环拿到之前在AppDelegate中声明的那个MMDrawerController属性,然后判断是否为打开状态,如果是就关闭,否就是打开(初略解释,里面还有一些条件) [self.mm_drawerController toggleDrawerSide:MMDrawerSideLeft animated:YES completion:nil]; } -(void)rightBtn{ [self.mm_drawerController toggleDrawerSide:MMDrawerSideRight animated:YES completion:nil]; }
-
2.2、完成上面后,导航栏的点击就能切换,那么我们就来实现一个效果吧,所谓的弹簧效果,也就几句代码
//2、添加双击手势 UITapGestureRecognizer * doubleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(doubleTap:)]; //2.1、双击 [doubleTap setNumberOfTapsRequired:2]; [self.view addGestureRecognizer:doubleTap]; //3、添加两个手指双击手势 UITapGestureRecognizer * twoFingerDoubleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(twoFingerDoubleTap:)]; //3.1、双击 [twoFingerDoubleTap setNumberOfTapsRequired:2]; //3.2、两个手指 默认为一个 [twoFingerDoubleTap setNumberOfTouchesRequired:2]; [self.view addGestureRecognizer:twoFingerDoubleTap]; //---------------------------- /** * 添加点击手势 一个手指双击 */ -(void)doubleTap:(UITapGestureRecognizer*)gesture{ [self.mm_drawerController bouncePreviewForDrawerSide:MMDrawerSideLeft completion:nil]; } /** * 添加点击手势 两个个手指双击 */ -(void)twoFingerDoubleTap:(UITapGestureRecognizer*)gesture{ [self.mm_drawerController bouncePreviewForDrawerSide:MMDrawerSideRight completion:nil]; }
3、到这里的话就是最后一步了,第一设置数据源,第二实现协议了。
- 3.1、数据源的编写,这里的话我用的都是静态数据,就不做解释了,右侧和左侧抽屉都为一样的,你们自行查看吧
#pragma mark - UITableViewDataSource
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return 10;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell) {
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.textLabel.text =[NSString stringWithFormat:@"Left-Demo%ld",indexPath.row];
return cell;
}
- 3.2、这里就是我们的最后一步,点击Cell跳转控制器了,那么我们的有一个控制器取名去:
LitterLShowViewController
#pragma mark - UITableViewDelegate
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
LitterLShowViewController *showVC = [[LitterLShowViewController alloc]init];
showVC.title = [NSString stringWithFormat:@"Left-Demo%ld",indexPath.row];
//拿到我们的LitterLCenterViewController,让它去push
UINavigationController* nav = (UINavigationController*)self.mm_drawerController.centerViewController;
[nav pushViewController:showVC animated:NO];
//当我们push成功之后,关闭我们的抽屉
[self.mm_drawerController closeDrawerAnimated:YES completion:^(BOOL finished) {
//设置打开抽屉模式为MMOpenDrawerGestureModeNone,也就是没有任何效果。
[self.mm_drawerController setOpenDrawerGestureModeMask:MMOpenDrawerGestureModeNone];
}];
}
4、差点忘了一个,就是当我们的LitterLShowViewController退出后,我们的把打开抽屉模式在切换过来,当然这个是在中间控制器里面去写,因为LitterLShowViewController退出后会呈现中间控制器
/**
* 加载控制器的时候设置打开抽屉模式 (因为在后面会关闭)
*/
-(void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
//设置打开抽屉模式
[self.mm_drawerController setOpenDrawerGestureModeMask:MMOpenDrawerGestureModeAll];
}
Demo地址:MMDrawerControllerDemo
本章到此结束
欢迎各位码友随意转载并指正