在.h文件中声明facebook sdk integration
@property (weak, nonatomic) IBOutlet FBSDKProfilePictureView *profilePicture;
声明
self.profilePicture.profileID = [ result objectForKey:@"id"];
UIImage *img=self.profilePicture;
给出错误
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[FBSDKProfilePictureView CGImage]: unrecognized selector sent to instance 0x7fdd5a5651e0'
*** First throw call stack:(
0 CoreFoundation 0x0000000106366a75 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x0000000105ffabb7 objc_exception_throw + 45
2 CoreFoundation 0x000000010636dd1d -[NSObject(NSObject) doesNotRecognizeSelector:] + 205
3 CoreFoundation 0x00000001062c59dc ___forwarding___ + 988
4 CoreFoundation 0x00000001062c5578 _CF_forwarding_prep_0 + 120
5 UIKit 0x00000001048c5732 UIImagePNGRepresentation + 33
6 SmartCookieProgram 0x0000000103bd0770 __47-[LoginViewController loginViewFetchedUserInfo]_block_invoke + 2880
7 SmartCookieProgram 0x0000000103c0b903 -[FBSDKGraphRequestMetadata invokeCompletionHandlerForConnection:withResults:error:] + 146
8 SmartCookieProgram 0x0000000103c11c6d __64-[FBSDKGraphRequestConnection processResultBody:error:metadata:]_block_invoke370 + 142
9 SmartCookieProgram 0x0000000103c11a02 -[FBSDKGraphRequestConnection processResultBody:error:metadata:] + 1046
10 SmartCookieProgram 0x0000000103c114d0 __64-[FBSDKGraphRequestConnection completeWithResults:networkError:]_block_invoke + 428
11 CoreFoundation 0x000000010629e782 __53-[__NSArrayM enumerateObjectsWithOptions:usingBlock:]_block_invoke + 114
12 CoreFoundation 0x000000010629dedc -[__NSArrayM enumerateObjectsWithOptions:usingBlock:] + 300
13 SmartCookieProgram 0x0000000103c11287 -[FBSDKGraphRequestConnection completeWithResults:networkError:] + 670
14 SmartCookieProgram 0x0000000103c10574 -[FBSDKGraphRequestConnection completeFBSDKURLConnectionWithResponse:data:networkError:] + 669
15 SmartCookieProgram 0x0000000103c0eca2 __36-[FBSDKGraphRequestConnection start]_block_invoke_2 + 72
16 SmartCookieProgram 0x0000000103c0c034 -[FBSDKURLConnection invokeHandler:error:response:responseData:] + 85
17 SmartCookieProgram 0x0000000103c0bfa9 -[FBSDKURLConnection logAndInvokeHandler:response:responseData:] + 395
18 SmartCookieProgram 0x0000000103c0c2fa -[FBSDKURLConnection connectionDidFinishLoading:] + 135
19 CFNetwork 0x0000000108e3b98c __65-[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]_block_invoke + 69
20 CFNetwork 0x0000000108e3b930 -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:] + 199
21 CFNetwork 0x0000000108e3ba97 -[NSURLConnectionInternal _withActiveConnectionAndDelegate:] + 48
22 CFNetwork 0x0000000108d0b937 ___ZN27URLConnectionClient_Classic26_delegate_didFinishLoadingEU13block_pointerFvvE_block_invoke + 107
23 CFNetwork 0x0000000108dd8a31 ___ZN27URLConnectionClient_Classic18_withDelegateAsyncEPKcU13block_pointerFvP16_CFURLConnectionPK33CFURLConnectionClientCurrent_VMaxE_block_invoke_2 + 273
24 CFNetwork 0x0000000108cf6d16 _ZN19RunloopBlockContext13_invoke_blockEPKvPv + 72
25 CoreFoundation 0x000000010626eb44 CFArrayApplyFunction + 68
26 CFNetwork 0x0000000108cf6bd7 _ZN19RunloopBlockContext7performEv + 133
27 CFNetwork 0x0000000108cf6a16 _ZN17MultiplexerSource7performEv + 256
28 CFNetwork 0x0000000108cf682c _ZN17MultiplexerSource8_performEPv + 72
29 CoreFoundation 0x000000010629bc91 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
30 CoreFoundation 0x0000000106291b5d __CFRunLoopDoSources0 + 269
31 CoreFoundation 0x0000000106291194 __CFRunLoopRun + 868
32 CoreFoundation 0x0000000106290bc6 CFRunLoopRunSpecific + 470
33 GraphicsServices 0x0000000107e02a58 GSEventRunModal + 161
34 UIKit 0x0000000104892580 UIApplicationMain + 1282
35 SmartCookieProgram 0x0000000103bce9c3 main + 115
36 libdyld.dylib 0x0000000107648145 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
请提供错误解决方案，并想了解如何使用FBSDKGraphRequest和FBSDKGraphRequestConnection
答案 0 :(得分：0)
FBSDKProfilePictureView是一种UIView类，而不是Image。
在你的xib或故事板上添加一个UIImageVIew并创建一个相同的IBOutlet。
@property（弱，非原子）IBOutlet UIImageView * imageView;
使用以下代码：
self.profilePicture = [[FBSDKProfilePictureView alloc] initWithFrame:_imageView.frame];
[_profilePicture setProfileID: result[@"id"]];
[self.view addSubview:_profilePicture];
它会起作用!!