Question

我正在尝试为我的应用设置侧边栏导航菜单。我正在使用MMDrawerController lib，但我遇到了一个问题。我添加了一个按钮并使用这些方法来调用侧边栏：

-(void)setupLeftMenuButton{
    MMDrawerBarButtonItem * leftDrawerButton = [[MMDrawerBarButtonItem alloc] initWithTarget:self action:@selector(leftDrawerButtonPress:)];
    [self.navigationItem setLeftBarButtonItem:leftDrawerButton animated:YES];
}

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

我正在使用带有View Controller的导航控制器，我正在调用此方法。这个viewcontroller叫做ViewController2。

每当我按下按钮拉出侧面菜单时，它会崩溃并返回此错误：

* 由于未捕获的异常'NSInvalidArgumentException'而终止应用程序，原因：' - [ViewController2 mm_drawerController]：无法识别的选择器发送到实例0x835b440'

我做错了什么？

编辑：

AppDelegate.h

#import "AppDelegate.h"
#import "MMDrawerController.h"
#import "ViewController2.h"
#import "MMLeftSideDrawerViewController.h"
#import "MMRightSideDrawerViewController.h"
#import "MMDrawerVisualState.h"
#import "MMDrawerVisualStateManager.h"

#import <QuartzCore/QuartzCore.h>

@interface AppDelegate ()

@property (nonatomic,strong) MMDrawerController * drawerController;

@end

@implementation AppDelegate
-(BOOL)application:(UIApplication *)application willFinishLaunchingWithOptions:(NSDictionary *)launchOptions{
    UIViewController * leftSideDrawerViewController = [[MMLeftSideDrawerViewController alloc] init];

    UIViewController * centerViewController = [[ViewController2 alloc] init]; // MAYBE SOMETHING WRONG HERE?

    UIViewController * rightSideDrawerViewController = [[MMRightSideDrawerViewController alloc] init];

    UINavigationController * navigationController = [[UINavigationController alloc] initWithRootViewController:centerViewController];
    [navigationController setRestorationIdentifier:@"MMCenterNavigationControllerRestorationKey"];

    self.drawerController = [[MMDrawerController alloc]
                             initWithCenterViewController:navigationController
                             leftDrawerViewController:leftSideDrawerViewController
                             rightDrawerViewController:rightSideDrawerViewController];
    [self.drawerController setRestorationIdentifier:@"MMDrawer"];
    [self.drawerController setMaximumRightDrawerWidth:200.0];
    [self.drawerController setOpenDrawerGestureModeMask:MMOpenDrawerGestureModeAll];
    [self.drawerController setCloseDrawerGestureModeMask:MMCloseDrawerGestureModeAll];

    [self.drawerController
     setDrawerVisualStateBlock:^(MMDrawerController *drawerController, MMDrawerSide drawerSide, CGFloat percentVisible) {
         MMDrawerControllerDrawerVisualStateBlock block;
         block = [[MMDrawerVisualStateManager sharedManager]
                  drawerVisualStateBlockForDrawerSide:drawerSide];
         if(block){
             block(drawerController, drawerSide, percentVisible);
         }
     }];
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    [self.window setRootViewController:self.drawerController];

    return YES;
}


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{

    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];
    return YES;
}

- (void)applicationWillResignActive:(UIApplication *)application
{
    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
    // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}

- (void)applicationDidEnterBackground:(UIApplication *)application
{
    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}

- (void)applicationWillEnterForeground:(UIApplication *)application
{
    // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
}

- (void)applicationDidBecomeActive:(UIApplication *)application
{
    // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}

- (void)applicationWillTerminate:(UIApplication *)application
{
    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}

- (BOOL)application:(UIApplication *)application shouldSaveApplicationState:(NSCoder *)coder{
    return YES;
}

- (BOOL)application:(UIApplication *)application shouldRestoreApplicationState:(NSCoder *)coder{
    return YES;
}


- (UIViewController *)application:(UIApplication *)application viewControllerWithRestorationIdentifierPath:(NSArray *)identifierComponents coder:(NSCoder *)coder
{
    NSString * key = [identifierComponents lastObject];
    if([key isEqualToString:@"MMDrawer"]){
        return self.window.rootViewController;
    }
    else if ([key isEqualToString:@"MMCenterNavigationControllerRestorationKey"]) {
        return ((MMDrawerController *)self.window.rootViewController).centerViewController;
    }
    else if ([key isEqualToString:@"MMLeftSideDrawerController"]){
        return ((MMDrawerController *)self.window.rootViewController).leftDrawerViewController;
    }
    else if ([key isEqualToString:@"MMRightSideDrawerController"]){
        return ((MMDrawerController *)self.window.rootViewController).rightDrawerViewController;
    }
    return nil;
}

@end

Answer 1

如果您使用导航

，请查看示例

（或交换视图，如果你不是）

[（UINavigationController *）self.mm_drawerController.centerViewController pushViewController：animated：YES];

MMDrawerController无法识别的选择器

1 个答案: