侧边栏抽屉效果之开源库MMDrawerController的使用

1、开源库，利用pod引入第三方库MMDrawerController：

　　在建立的Podfile中加入代码：

platform :ios, '7.0'
pod 'ReactiveCocoa'
pod 'MMDrawerController'
pod 'Toast', '~> 3.0'
pod 'CocoaSecurity'

　　其中MMDrawerController就是开源的侧边栏库

2、在appdelegate中加入以下代码

　　首先加入头文件

#import "AppDelegate.h"
#import <MMDrawerController.h>
#import "LeftViewController.h"
#import "ViewController.h"
#import "RightViewController.h"

　　新建属性

@property(nonatomic,assign) BOOL ifNavFromLeftMenu;
@property(nonatomic,assign) BOOL isNavFinished;

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    
    ViewController *vc = [[ViewController alloc] init];
    LeftViewController *leftVc = [[LeftViewController alloc] init];
    RightViewController *right = [[RightViewController alloc] init];
    UINavigationController *center     = [[UINavigationController alloc] initWithRootViewController:vc];
    center.delegate = (id<UINavigationControllerDelegate>)self;
    
    MMDrawerController * drawerController = [[MMDrawerController alloc]
                                             initWithCenterViewController:center
                                             leftDrawerViewController:leftVc
                                             rightDrawerViewController:right];
    [drawerController setShowsShadow:YES];
    drawerController.closeDrawerGestureModeMask = MMCloseDrawerGestureModeAll;
    [drawerController setRestorationIdentifier:@"MMDrawer"];
    [drawerController setMaximumLeftDrawerWidth:270.0];
    
    self.window.rootViewController = drawerController;
    
    return YES;
}

　　在加入左右侧边栏实现的代理方法

-(void)navigateToView:(UIViewController*)controler ifLeft:(BOOL)ifLeft animate:(BOOL)animate
{
    MMDrawerController*menuVctler = (MMDrawerController *)self.window.rootViewController;
    UINavigationController* nav = (UINavigationController*)menuVctler.centerViewController;
    if (nav) {
        nav.delegate = (id<UINavigationControllerDelegate>)self;
        self.ifNavFromLeftMenu = ifLeft;
        if (ifLeft) {
            [nav pushViewController:controler animated:NO];
            [menuVctler closeDrawerAnimated:YES completion:^(BOOL finished) {
                
            }];
        }else{
            [nav pushViewController:controler animated:animate];
        }
    }
}

#pragma mark - UINavigationControllerDelegate
- (void)navigationController:(UINavigationController *)navigationController
      willShowViewController:(UIViewController *)viewController
                    animated:(BOOL)animated
{
    if (!self.ifNavFromLeftMenu) {
        return;
    }
    
    UIViewController* rootVc = [navigationController.viewControllers objectAtIndex:0];
    if([viewController isEqual:rootVc]){
        MMDrawerController *menuVctler = (MMDrawerController *)self.window.rootViewController;
        __weak UINavigationController*nav = navigationController;
        __weak typeof(self)wself = self;
        [menuVctler openDrawerSide:MMDrawerSideLeft animated:YES completion:^(BOOL finished) {
            nav.delegate = nil;
            self.ifNavFromLeftMenu = NO;
            
            double delayInSeconds = 0.2;
            dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(delayInSeconds * NSEC_PER_SEC));
            dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
                wself.isNavFinished  = YES;
            });
        }];
    }
}

- (void)navigationController:(UINavigationController *)navigationController
       didShowViewController:(UIViewController *)viewController
                    animated:(BOOL)animated
{
    if (!self.ifNavFromLeftMenu) {
        return;
    }
}

3、在主控制器中加入导航栏左右按钮的点击处理实现方法：

-(void)leftDrawerButtonPress:(id)sender{
    [self.mm_drawerController toggleDrawerSide:MMDrawerSideLeft animated:YES completion:nil];
}
-(void)rightDrawerButtonPress:(id)sender{
    [self.mm_drawerController toggleDrawerSide:MMDrawerSideRight animated:YES completion:nil];
}

编译运行就可以实现左右侧边栏的抽屉效果。