Question

我正在制作应用程序，我正在使用Swft 3和Xcode 8.2 beta。我正在努力使用户能够从我的iOS项目中的SWRevealViewController访问社交媒体。单击社交媒体按钮时，应打开相应的应用程序。但是，当执行代码并打开iOS模拟器时，当我滑动以打开SWRevealViewController（菜单）时，应用程序崩溃。

完整错误消息：

 *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<TheGunnOracleApp.SocialMedia 0x7ffd0d50c0d0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key dataSource.'
*** First throw call stack:
(
    0   CoreFoundation                      0x000000010212dd4b __exceptionPreprocess + 171
    1   libobjc.A.dylib                     0x0000000101b8f21e objc_exception_throw + 48
    2   CoreFoundation                      0x000000010212dc99 -[NSException raise] + 9
    3   Foundation                          0x000000010169db3f -[NSObject(NSKeyValueCoding) setValue:forKey:] + 291
    4   UIKit                               0x0000000102e8e99f -[UIViewController setValue:forKey:] + 88
    5   UIKit                               0x0000000103102c6e -[UIRuntimeOutletConnection connect] + 109
    6   CoreFoundation                      0x00000001020d2b60 -[NSArray makeObjectsPerformSelector:] + 256
    7   UIKit                               0x00000001031015f2 -[UINib instantiateWithOwner:options:] + 1867
    8   UIKit                               0x0000000102e950d1 -[UIViewController _loadViewFromNibNamed:bundle:] + 386
    9   UIKit                               0x0000000102e959f3 -[UIViewController loadView] + 177
    10  UIKit                               0x000000010311561c -[UITableViewController loadView] + 84
    11  UIKit                               0x0000000102e95d28 -[UIViewController loadViewIfRequired] + 201
    12  UIKit                               0x0000000102e9657c -[UIViewController view] + 27
    13  TheGunnOracleApp                    0x00000001014d50fb -[SWRevealViewController _deployForViewController:inView:] + 235
    14  TheGunnOracleApp                    0x00000001014d4f58 -[SWRevealViewController _deploymentForViewController:inView:appear:disappear:] + 136
    15  TheGunnOracleApp                    0x00000001014d48c1 -[SWRevealViewController _rearViewDeploymentForNewFrontViewPosition:] + 433
    16  TheGunnOracleApp                    0x00000001014d32f2 -[SWRevealViewController _setFrontViewPosition:withDuration:] + 82
    17  TheGunnOracleApp                    0x00000001014d26c6 __65-[SWRevealViewController _dispatchSetFrontViewPosition:animated:]_block_invoke + 70
    18  TheGunnOracleApp                    0x00000001014d1300 -[SWRevealViewController _enqueueBlock:] + 160
    19  TheGunnOracleApp                    0x00000001014d261b -[SWRevealViewController _dispatchSetFrontViewPosition:animated:] + 251
    20  TheGunnOracleApp                    0x00000001014d0154 -[SWRevealViewController setFrontViewPosition:animated:] + 148
    21  TheGunnOracleApp                    0x00000001014cffed -[SWRevealViewController revealToggleAnimated:] + 93
    22  TheGunnOracleApp                    0x00000001014d05df -[SWRevealViewController revealToggle:] + 63
    23  UIKit                               0x0000000102cf645c -[UIApplication sendAction:to:from:forEvent:] + 83
    24  UIKit                               0x0000000103137971 -[UIBarButtonItem(UIInternal) _sendAction:withEvent:] + 149
    25  UIKit                               0x0000000102cf645c -[UIApplication sendAction:to:from:forEvent:] + 83
    26  UIKit                               0x0000000102e7c344 -[UIControl sendAction:to:forEvent:] + 67
    27  UIKit                               0x0000000102e7c65d -[UIControl _sendActionsForEvents:withEvent:] + 444
    28  UIKit                               0x0000000102e7c7e7 -[UIControl _sendActionsForEvents:withEvent:] + 838
    29  UIKit                               0x0000000102e7b559 -[UIControl touchesEnded:withEvent:] + 668
    30  UIKit                               0x0000000102d63d5d -[UIWindow _sendTouchesForEvent:] + 2747
    31  UIKit                               0x0000000102d6544b -[UIWindow sendEvent:] + 4011
    32  UIKit                               0x0000000102d1254b -[UIApplication sendEvent:] + 371
    33  UIKit                               0x00000001034fda0f __dispatchPreprocessedEventFromEventQueue + 3248
    34  UIKit                               0x00000001034f6745 __handleEventQueue + 4879
    35  CoreFoundation                      0x00000001020d28e1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
    36  CoreFoundation                      0x00000001020b7b0c __CFRunLoopDoSources0 + 556
    37  CoreFoundation                      0x00000001020b6ff6 __CFRunLoopRun + 918
    38  CoreFoundation                      0x00000001020b6a04 CFRunLoopRunSpecific + 420
    39  GraphicsServices                    0x0000000107e37a6f GSEventRunModal + 161
    40  UIKit                               0x0000000102cf4808 UIApplicationMain + 159
    41  TheGunnOracleApp                    0x00000001014f2d0f main + 111
    42  libdyld.dylib                       0x0000000105ddd68d start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)

以下是社交媒体中每个按钮的代码。

注意：我删除了其他社交媒体的代码，因为Facebook最初没有工作：

import Foundation
import UIKit

class SocialMedia: UITableViewController{
    @IBAction func facebookOpen(_ sender: Any) {
        UIApplication.shared.open(NSURL(string: "https://www.facebook.com/gunnoracle")! as URL)
    }
}

以下是我的Main.storyboard UITableViewController的截图：

Answer 1

似乎问题不是由我刚试过的那段代码引起的，而是有效的。

当我滑动打开SWRevealViewController（菜单）时，应用程序崩溃了。

这可能是原因。你如何使用SWRevealViewController有问题。

社交媒体应用程序的按钮不起作用 - 斯威夫特

1 个答案: